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Archaeology and Natural History

Works Count: 145598

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This cluster of papers explores the resilience of traditional irrigation communities in the Southwest USA, focusing on water sustainability, hydrologic interactions, cultural heritage, and ecosystem services. It delves into the social-ecological systems supporting community resilience, climate adaptation, and the management of biodiversity. The research also includes archaeological investigations and emphasizes the importance of traditional irrigation in maintaining community livelihoods and culture.

Keywords

Traditional Irrigation; Water Sustainability; Community Resilience; Hydrologic Interactions; Cultural Heritage; Ecosystem Services; Climate Adaptation; Archaeological Investigations; Social-Ecological Systems; Biodiversity Management

Violence over the land: Indians and empires in the early American West

2007-07-01

Ned Blackhawk

American Indians remain familiar as icons, yet poorly understood as historical agents. In this ambitious book that ranges across Utah, Nevada, New Mexico, Colorado and eastern California (a region known … American Indians remain familiar as icons, yet poorly understood as historical agents. In this ambitious book that ranges across Utah, Nevada, New Mexico, Colorado and eastern California (a region known as the Great Basin), Ned Blackhawk places Native peoples squarely at the centre of a dynamic and complex story as he chronicles two centuries of Indian and imperial history that profoundly shaped the American West. On the distant margins of empire, Great Basin Indians increasingly found themselves engulfed in the chaotic storms of European expansion and responded in ways that refashioned themselves and those around them. Focusing on Ute, Paiute and Shoshone Indians, Blackhawk illuminates this history through a lens of violence, excavating the myriad impacts of colonial expansion. Brutal networks of trade and slavery forged the Spanish borderlands, and the use of violence became for many Indians a necessary survival strategy, particularly after Mexican Independence when many became raiders and slave traffickers. Throughout such violent processes, these Native communities struggled to adapt to their changing environments, sometimes scoring remarkable political ends while suffering immense reprisals. Violence over the Land is a passionate reminder of the high costs that the making of American history occasioned for many indigenous peoples, written from the vantage point of an Indian scholar whose own family history is intimately bound up in its enduring legacies.

The George Reserve Deer Herd: Population Ecology of a K-Selected Species

1980-07-01

Len H. Carpenter , Dale R. McCullough

A reassessment of the studies done on this deer herd over the years and their implications for state wildlife management agencies. A reassessment of the studies done on this deer herd over the years and their implications for state wildlife management agencies.

Hydrologic unit maps

1987-01-01

Paul R. Seaber , F.P. Kapinos , George L. Knapp

A set of maps depicting approved boundaries of, and numerical codes for, river-basin units of the United States has been developed by the U.S . Geological Survey. These 'Hydrologic Unit … A set of maps depicting approved boundaries of, and numerical codes for, river-basin units of the United States has been developed by the U.S . Geological Survey. These 'Hydrologic Unit Maps' are four-color maps that present information on drainage, culture, hydrography, and hydrologic boundaries and codes of (1) the 21 major water-resources regions and the 222 subregions designated by the U.S . Water Resources Council, (2) the 352 accounting units of the U.S. Geological Survey's National Water Data Network, and (3) the 2,149 cataloging units of the U.S . Geological Survey's 'Catalog of information on Water Data:' The maps are plotted on the Geological Survey State base-map series at a scale of 1 :500,000 and, except for Alaska, depict hydrologic unit boundaries for all drainage basins greater than 700 square miles (1,813 square kilometers). A complete list of all the hydrologic units, along with their drainage areas, their names, and the names of the States or outlying areas in which they reside, is contained in the report. These maps and associated codes provide a standardized base for use by water-resources organizations in locating, storing, retrieving, and exchanging hydrologic data, in indexing and inventorying hydrologic data and information, in cataloging water-data acquisition activities, and in a variety of other applications. Because the maps have undergone extensive review by all principal Federal, regional, and State water-resource agencies, they are widely accepted for use in planning and describing water-use and related land-use activities, and in geographically organizing hydrologic data . Examples of these uses are given in the report . The hydrologic unit codes shown on the maps have been approved as a Federal Information Processing Standard for use by the Federal establishment.

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Vegetation and Flora of the Sonoran Desert.

1964-11-01

Stephen N. Stephenson , Forrest Shreve , Ira L. Wiggins

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Dinosaur tracks and other fossil footprints of the western United States

1996-01-01

Martin G. Lockley , Adrian P. Hunt

For dinosaur lovers and tourists alike, this guide explores the palaeontological treasure trove of the western United States. Concentrating on the rich fossil life of the Colorado Plateau region - … For dinosaur lovers and tourists alike, this guide explores the palaeontological treasure trove of the western United States. Concentrating on the rich fossil life of the Colorado Plateau region - including parts of Utah, Arizona, and New Mexico - it gives readers the story behind a track record which extends some 300 million years back in time. Readers learn about America's prehistory as they explore a region with one of the best track records of land animals found anywhere in the world. An appendix lists museums and other major repositories of tracks and replicas, and gives details on tracksites open to the public. Lockley leads his readers to the footprints themselves, and shows fossil explorers how these traces can help to interpret the behaviour of dinosaurs.

Continental Conservation: scientific foundations of regional reserve networks

1999-01-01

Michael E. Soulé , John Terborgh , Wildlands

The Wildlands Project is a far-reaching effort by scientists and activists to develop better ways of protecting nature, wilderness, and biodiversity. Its ultimate goal is to establish an effective network … The Wildlands Project is a far-reaching effort by scientists and activists to develop better ways of protecting nature, wilderness, and biodiversity. Its ultimate goal is to establish an effective network of nature reserves throughout North America -- core conservation areas linked by corridors, and buffered, where appropriate, by lands that may also serve economic objectives.Continental Conservation represents the work of thirty leading experts-including Michael Soule, John Terborgh, Reed Noss, Paul Paquet, Dan Simberloff, Rodolfo Dirzo, J. Michael Scott, Andrew Dobson, and others -- brought together by The Wildlands Project to examine the science underlying the design and management of these regional-scale networks. It provides conservationists and biologists with the latest scientific principles for protecting living nature at spatial scales that encompass entire regions and continents.Following an opening chapter that sets the stage by introducing major themes and the scientific and policy background, the contributors: consider scale in the identification, selection, and design of biological reserves examine the role of top carnivores in regulating terrestrial ecosystems suggest the need for a paradigm shift in the field of ecological restoration consider the scientific details of implementing regional conservation in core areas, corridors, and in buffer zones discuss the need for megareserves and how to design themThe book ends by challenging the reader, whether scientist or advocate, to commit more time to the effort of saving nature. The authors argue that the very survival of nature is at stake, and scientists can no longer afford to stand behind a wall of austereobjectivity.Continental Conservation is an important guidebook that can serve a vital role in helping fashion a radically honest, scientifically rigorous land-use agenda. It will be required reading for scientists and professionals at all levels involved with ecosystem and land management.

Indians of the South-Eastern United States

1947-12-01

John R. Swanton

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Body Ritual among the Nacirema

1956-06-01

Horace Miner

The Discovery of America

1973-03-09

Paul S. Martin

I propose a new scenario for the discovery of America. By analogy with other successful animal invasions, one may assume that the discovery of the New World triggered a human … I propose a new scenario for the discovery of America. By analogy with other successful animal invasions, one may assume that the discovery of the New World triggered a human population explosion. The invading hunters attained their highest population density along a front that swept from Canada to the Gulf of Mexico in 350 years, and on to the tip of South America in roughly 1000 years. A sharp drop in human population soon followed as major prey animals declined to extinction. Possible values for the model include an average frontal depth of 160 kilometers, an average population density of 0.4 person per square kilometer on the front and of 0.04 person per square kilometer behind the front, and an average rate of frontal advance of 16 kilometers per year. For the first two centuries the maximum rate of growth may have equaled the historic maximum of 3.4 percent annually. During the episode of faunal extinctions, the population of North America need not have exceeded 600,000 people at any one time. The model generates a population sufficiently large to overkill a biomass of Pleistocene large animals averaging 9 metric tons per square kilometer (50 animal units per section) or 2.3 x 10(8) metric tons in the hemisphere. It requires that on the front one person in four destroy one animal unit (450 kilograms) per week, or 26 percent of the biomass of an average section in 1 year in any one region. Extinction would occur within a decade. There was insufficient time for the fauna to learn defensive behaviors, or for more than a few kill sites to be buried and preserved for the archeologist. Should the model survive future findings, it will mean that the extinction chronology of the Pleistocene megafauna can be used to map the spread of Homo sapiens throughout the New World.

Cultural and Natural Areas of Native North America

1943-01-01

Maurice A. Mook , A. L. Kroeber

The Geomorphic and Paleoclimatic Significance of Alluvial Deposits in Southern Arizona

1965-01-01

Mark A. Melton

Alluvial deposits in southern Arizona are conveniently grouped into four major classes for purposes of geomorphic-climatic interpretation. The oldest group consists of (1) great thicknesses of highly deformed, varied, continental … Alluvial deposits in southern Arizona are conveniently grouped into four major classes for purposes of geomorphic-climatic interpretation. The oldest group consists of (1) great thicknesses of highly deformed, varied, continental sediments and volcanic rocks deposited under conditions of crustal instability and a subhumid climate prior to the major events of the Basin and Range orogeny; (2) moderately tilted and faulted, coarse, postorogenic fanglomerates deposited during rapid erosion of uplifted mountain blocks with steep slopes, under a hot, semiarid climate. A second group consists of locally deformed, fine-grained lake beds and correlative deposits, deposited from lower Pliocene to middle Pleistocene under generally mild climates in response to damming of the ancestral drainage. A third group consists of very coarse, unde-formed fan deposits that were the product of rapid mechanical weathering during the cold Illinoian and Wisconsin glaciopluvial stages. The fourth group consists of fine-grained, denega beds, deposited from 500 B.C. to about A.D 1800 in almost every watercourse under a climate very much like today's. The change from fine-grained deposition of the lake episode to fan deposition indicates that the early Pleistocene pluvial stages were more humid than today, but not particularly cold; mechanical weathering was subordinate to chemical weathering. During the much colder Illinoian and Wisconsin stages only the low desert ranges escaped intensive frost action. A mature, leached, red-brown soil separates Illinoian from Wisconsin deposits over a wide area of southern Arizona. Fan gradients were determined by the ruggedness of the parent basins. Fans are thicker for basins with higher summit elevations and northeast orientation. The empirical equation $$\gamma^{0}= 7.30(H/\sqrt{A})^{0.87}$$ relates gradient to relative relief for both late Pleistocene fans and modern channels. In the headwaters cienega surfaces on fine deposits generally have steeper gradients than the modern bouldery arroyos trenching them. During their formation, the cienegas were zones of very high hydraulic roughness covered by dense stands of tall grass. The pattern of cienega deposition and entrenchment in second-order basins is controlled by mean hill-slope inclination and by the nature of the material upon which the basin is developed.

The Climate of the Central North American Grassland

1950-03-01

John R. Borchert

Wisdom Sits in Places: Landscape and Language among the Western Apache

1998-01-01

Sarah Johnson , Keith H. Basso

This remarkable book introduces us to four unforgettable Apache people, each of whom offers a different take on the significance of places in their culture. Apache conceptions of wisdom, manners … This remarkable book introduces us to four unforgettable Apache people, each of whom offers a different take on the significance of places in their culture. Apache conceptions of wisdom, manners and morals, and of their own history are inextricably intertwined with place, and by allowing us to overhear his conversations with Apaches on these subjects Basso expands our awareness of what can mean to people.Most of us use the term of place often and rather carelessly when we think of nature or home or literature. Our senses of place, however, come not only from our individual experiences but also from our cultures. Wisdom Sits in Places, the first sustained study of places and place-names by an anthropologist, explores place, places, and what they mean to a particular group of people, the Western Apache in Arizona. For more than thirty years, Keith Basso has been doing fieldwork among the Western Apache, and now he shares with us what he has learned of Apache place-names--where they come from and what they mean to Apaches.This is indeed a brilliant exposition of landscape and language in the world of the Western Apache. But it is more than that. Keith Basso gives us to understand something about the sacred and indivisible nature of words and place. And this is a universal equation, a balance in the universe. Place may be the first of all concepts; it may be the oldest of all words.--N. Scott MomadayIn Wisdom Sits in Places Keith Basso lifts a veil on the most elemental poetry of human experience, which is the naming of the world. In so doing he invests his scholarship with that rarest of scholarly qualities: a sense of spiritual exploration. Through his clear eyes we glimpse the spirit of a remarkable people and their land, and when we look away, we see our own world afresh.--William deBuysA very exciting book--authoritative, fully informed, extremely thoughtful, and also engagingly written and a joy to read. Guiding us vividly among the landscapes and related story-tellings of the Western Apache, Basso explores in a highly readable way the role of language in the complex but compelling theme of a people's attachment to place. An important book by an eminent scholar.--Alvin M. Josephy, Jr.

Bury My Heart at Wounded Knee: An Indian History of the American West

1972-04-01

Francis Paul Prucha , Dee Alexander Brown

Immediately recognized as a revelatory and enormously controversial book since its first publication in 1971, Bury My Heart at Wounded universally recognized as one of those rare books that forever … Immediately recognized as a revelatory and enormously controversial book since its first publication in 1971, Bury My Heart at Wounded universally recognized as one of those rare books that forever changes the way its subject perceived. Now repackaged with a new introduction from bestselling author Hampton Sides to coincide with a major HBO dramatic film of the book, Bury My Heart at Wounded Knee.Bury My Heart at Wounded Knee is Dee Brown's classic, eloquent, meticulously documented account of the systematic destruction of the American Indian during the second half of the nineteenth century. A national bestseller in hardcover for more than a year after its initial publication, it has sold over four million copies in multiple editions and has been translated into seventeen languages.Using council records, autobiographies, and firsthand descriptions, Brown allows great chiefs and warriors of the Dakota, Ute, Sioux, Cheyenne, and other tribes to tell us in their own words of the series of battles, massacres, and broken treaties that finally left them and their people demoralized and decimated. A unique and disturbing narrative told with force and clarity, Bury My Heart at Wounded changed forever our vision of how the West was won, and lost. It tells a story that should not be forgotten, and so must be retold from time to time.

Astraea: The Imperial Theme in the Sixteenth Century

1976-06-01

Marvin A. Breslow , Frances A. Yates

A tale of four generations of an oil-rich family trying to live out the century without drawing blood under the unblinking Texas sky. Hiram, the family's patriarch, is a rich … A tale of four generations of an oil-rich family trying to live out the century without drawing blood under the unblinking Texas sky. Hiram, the family's patriarch, is a rich sonofabitch who was loved by every woman he ever met - and some who only heard of him. Hiram is a teller of tales, a cowboy.

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Regeneration Through Violence: The Mythology of the American Frontier, 1600-1860

1974-01-01

Levi S. Peterson , Richard Slotkin

Journal Article Regeneration through Violence: The Mythology of the American Frontier, 1600–1860 Get access Regeneration through Violence: The Mythology of the American Frontier, 1600–1860. By Slotkin Richard. (Middletown: Wesleyan University … Journal Article Regeneration through Violence: The Mythology of the American Frontier, 1600–1860 Get access Regeneration through Violence: The Mythology of the American Frontier, 1600–1860. By Slotkin Richard. (Middletown: Wesleyan University Press, 1973. 670 p. Notes, bibliography, index. $25.00.) Levi S. Peterson Levi S. Peterson Weber State College Search for other works by this author on: Oxford Academic Google Scholar Western Historical Quarterly, Volume 5, Issue 1, January 1974, Pages 72–73, https://doi.org/10.2307/967199 Published: 01 January 1974

San Antonio, Texas

1940-07-01

William T. Chambers

Geological Investigation of the Alluvial Valley of the Lower Mississippi River

1947-01-01

Richard Foster Flint , H. N. Fisk

The Fishes of Missouri

1976-12-30

Kok Hing Chong , William L. Pflieger

Rio de la Plata grasslands

1992-06-21

A. Soriano

Smithsonian Meteorological Tables

1920-09-01

Biogeochemistry of a Forested Ecosystem

2013-01-01

Gene E. Likens

Hudson et al.

1977-07-01

E. N. Anderson

The Eye of the Flute: Chumash Traditional History and Ritual as Told by Fernando Librado Kitsepawit to John P. Harrington . Travis Hudson, Thomas Blackburn, Rosario Curletti, and Janice Timbrook, … The Eye of the Flute: Chumash Traditional History and Ritual as Told by Fernando Librado Kitsepawit to John P. Harrington . Travis Hudson, Thomas Blackburn, Rosario Curletti, and Janice Timbrook, eds. lllustrated by Campbell Grant. Santa Barbara: Santa Barbara Museum of Natural History, Santa Barbara Bicentennial Historical Series iv. 1977. 130 pp., map, 19 illus., 4 appendices, indexed, clothbound. No price given.

The Fishes and the Forest

1980-12-31

Michael Goulding

Cadillac Desert: The American West and Its Disappearing Water

1989-04-01

William D. Rowley , Marc Reisner

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Mamíferos de Nuevo León: distribución y taxonomía

2023-01-01

Arturo Jiménez Guzmán

La fauna silvestre juega un papel importante en la economía y cultura del hombre. Desde el punto de vista ecológico, su relevancia se observa en los flujos de energía en … La fauna silvestre juega un papel importante en la economía y cultura del hombre. Desde el punto de vista ecológico, su relevancia se observa en los flujos de energía en que interviene dentro de los ecosistemas, ocupación de lugares específicos en las cadenas tróficas, contribución a la circulación de nutrientes y participación en la propagación de algunas especies vegetales, principalmente. No obstante su trascendencia económica, ecológica y social, es notable el vacío de conocimiento en relación a la situación en que se encuentran las poblaciones naturales, el uso a que están sujetos y el efecto que tienen sobre ellos las actividades del hombre, por mencionar algunas. Por ello, es necesario analizar los cambios en el entorno ecológico, para evaluar las transformaciones y proponer acciones que minimicen los impactos ocasionados por la infraestructura humana. Este proyecto apoyado por la CONABIO integra el inventario de los mamíferos localizados en el estado de Nuevo León, a partir de los datos obtenidos de varias colecciones ya existentes, del trabajo de campo realizado específicamente para complementar la colección de Mamíferos de Nuevo León de la Universidad Autónoma de Nuevo León y de la investigación documental sobre los mamíferos del estado. El producto último de este proyecto es una base de datos que contiene información de 5,279 ejemplares correspondientes a 128 especies. Reino: 1 Filo: 1 Clase: 1 Orden: 8 Familia: 23 Género: 63 Especie: 31 Epitetoinfraespecifico: 83

Inventario de la vegetación acuática vascular de la Reserva de la Biosfera Pantanos de Centla, Tabasco

2023-01-01

Alejandro Novelo Retana

Los pantanos de Tabasco y Campeche han sido considerados no sólo la zona de mayor superficie inundada del país sino la reserva de plantas acuáticas más extensa, diversa y en … Los pantanos de Tabasco y Campeche han sido considerados no sólo la zona de mayor superficie inundada del país sino la reserva de plantas acuáticas más extensa, diversa y en buen estado de conservación de toda el área Mesoamericana, a pesar de que la exploración botánica dista mucho de ser la óptima. Por lo tanto, en este proyecto se pretende realizar el inventario de las plantas acuáticas vasculares de la Reserva de la Biosfera Pantanos de Centla en el estado de Tabasco. Se propone realizar seis expediciones fundamentalmente por lancha de motor a través de los principales ríos que atraviesan la Reserva (Grijalva, Usumacinta, San Pedro y San Pablo) y poniendo particular interés en la zona núcleo. También realizaremos colectas por todas partes de la reserva acercándonos por carretera y usando cayucos para colectar en los pantanos de menor profundidad, lagunas internas de agua dulce y zonas inundadas arboladas. Se colectarán todas las formas de vida que están desarrollándose en el ambiente acuático como hierbas, arbustos, árboles, palmas, epífitas de árboles de zonas inundadas, etc. Se incluirán los grupos botánicos desde helechos y plantas afines hasta angiospermas. Dentro de las familias de plantas acuáticas más comunes de esta región que van a ser colectadas se encuentran alrededor de 15 familias estrictamente acuáticas, entre las que destacan: Marsileaceae, Salviniaceae, Alismataceae, Pontederiaceae, Typhaceae, Hydrocharitaceae, Lemnaceae, Ceratophyllaceae, Shenocleaceae y Nymphaeaceae, y algunas familias básicamente terrestres pero que en esta región tienen varios representantes acuáticos, como son: Orchidaceae, Gramineae, Leguminosae, Euphorbiaceae, Cyperaceae, Bromeliaceae, etc. En el anexo de esta propuesta se encuentra una lista más completa de las familias y géneros que se sabe que pueden encontrarse dentro de la Reserva de acuerdo a las colectas previas que el proponente de este proyecto ha realizado en el estado de Tabasco. Se ha estimado obtener alrededor de 1,500 registros curatoriales durante el desarrollo del proyecto. Como meta complementaria se tiene planeado la toma de fotografías del mayor número de especies en su hábitat natural y al mismo tiempo conformar la lista lo más completa posible de las especies que se desarrollan en la Reserva. Dicha lista, va a servir de base para que en un futuro proyecto se elabore un Manual de Identificación de las Plantas Acuáticas de la Reserva que cumpla con las expectativas de difusión, educación ambiental y ecoturismo de la propia Reserva. El proyecto también permitirá el entrenamiento de un estudiante de posgrado el cual sería contratado para ayudar en las labores de colecta, alimentación de la base de datos y sería coautor de cualquier publicación que se derive del proyecto. De las colectas que se realicen se hará una base de datos de acuerdo a los lineamientos propuestos por la CONABIO y un juego completo de los ejemplares botánicos quedará depositado en el Herbario Nacional (MEXU), uno más en el Herbario de la Universidad Juárez Autónoma de Tabasco (UJAT) y el resto será repartido entre instituciones nacionales y del extranjero con quién el Herbario Nacional mantiene un programa de intercambio. Reino: 1 Filo: 1 Clase: 2 Orden: 19 Familia: 28 Género: 42 Especie: 41 Epitetoinfraespecifico: 2

River Pant historic river corridor surveys

2023-01-01

Uknbn

Former National Rivers Authority paper records for river corridor surveys of the River Pant in Essex, held by the Environment Agency and digitised by Essex Wildlife Trust on their behalf … Former National Rivers Authority paper records for river corridor surveys of the River Pant in Essex, held by the Environment Agency and digitised by Essex Wildlife Trust on their behalf using funding from the NBN data capture initiative. Data consists mainly of botanical records from old recording cards, although there are some records for other taxa. Paper copies of these surveys are held by Essex Biodiversity Project, scanned copies of the site descriptions and sketch maps accompanying this data are held digitally by Essex Wildlife Trust Biological Records Centre.

Riqueza y distribución de especies vegetales en la Península de Baja California

2023-01-01

Hugo Riemann González

La Península de Baja California está integrada por seis grandes regiones fitogeográficas al interior de las cuales existe una diversidad de comunidades que en gran medida son el resultado de … La Península de Baja California está integrada por seis grandes regiones fitogeográficas al interior de las cuales existe una diversidad de comunidades que en gran medida son el resultado de la variabilidad altitudinal, latitudinal y de vertiente que caracteriza a esta provincia fisiográfica. Esta variabilidad ambiental aunada al carácter peninsular ha dado lugar a una importante diversidad biológica que se traduce en la presencia de numerosos endemismos que en el caso de plantas es especialmente notable en la familia de las cactáceas. El gradiente latitudinal de la península está ocupado por una gama de comunidades vegetales que van desde el matorral mediterráneo y bosques de coníferas en la parte noroeste y matorral micrófilo en la parte noreste hasta la selva caducifolia en la región del Cabo, con una vegetación de tipo sarcófilo y crasicaule en los desiertos centrales y de Magdalena. La península cuenta con una aparentemente extensa superficie protegida de más de 5,000,000 Ha, bajo los regímenes de protección de parque estatal, parque nacional, reserva forestal, reserva de la biosfera y zona protectora especial. Las comunidades bajo protección incluyen comunidades de bosques de coníferas y pino-encino en la parte norte, comunidades de matorral crasicaule y sarcocaule en las zonas áridas de la región del desierto central. No existen a la fecha comunidades de vegetación mediterránea o de selva bajo algún régimen de protección. En la práctica, las áreas protegidas, especialmente los parques y reservas nacionales cuentan con muy poca vigilancia y protección además, no se cuenta con una base de datos de las especies vegetales que están presentes en cada una de estas reservas o parques. El conocimiento acerca de la situación y disponibilidad de los recursos vegetales que permiten elaborar políticas de ordenamiento ecológico y normar criterios de impacto ambiental a través del desarrollo de indicadores de diversidad es incipiente en general y en muchos casos inexistente. Reino: 1 Filo: 1 Clase: 3 Orden: 40 Familia: 100 Género: 347 Subgénero: 8 Especie: 600 Epitetoinfraespecifico: 209

Flora (vascular) y fauna (aves) de los Parques Nacionales del estado de Baja California: Constitución de 1857 y Sierra San Pedro Mártir (Aves)

2023-01-01

José Delgadillo Rodríguez

Este proyecto tiene como propósito de incorporar la información de los ejemplares de aves depositados en la Colección Científica de Vertebrados, y de ejemplares de plantas vasculares del Herbario BCMEX. … Este proyecto tiene como propósito de incorporar la información de los ejemplares de aves depositados en la Colección Científica de Vertebrados, y de ejemplares de plantas vasculares del Herbario BCMEX. Actualmente, él número aproximado de ejemplares de plantas vasculares es de 20000 ejemplares y de aves 1350 ejemplares. Actualmente, la mayor parte de nuestras colecciones científicas no están incorporadas en la base de datos BIOTICA. Un porcentaje de los ejemplares de plantas vasculares ha sido capturado en la base de datos BIOTICA (proyecto L077), sin embargo el grupo de aves no ha sido capturado en la base de datos BIOTICA. De tal manera que se hace necesario la incorporación y actualización de la base de datos con ejemplares depositados en ambas colecciones y que han sido recolectados dentro de los polígonos de los parques nacionales Constitución de 1857 y Sierra San Pedro Mártir. Además, es importante realizar e intensificar las exploraciones y colectas de áreas poco exploradas y de las cuales no hay registros de organismos en ambos parques. En abril del 2003, la CONABIO apoyo a la UABC con un servidor con el propósito de incluir las bases de datos generadas con su apoyo en la Red Mexicana de Información sobre Biodiversidad (REMIB); el servidor se encuentra funcionando en el Herbario BCMEX. Ambas colecciones, Herbario y Vertebrados, se encuentran registradas desde hace algunos años ante la instancia correspondiente. Reino: 1 Filo: 1 Clase: 1 Orden: 18 Familia: 47 Género: 117 Especie: 173

New Mexico Museum of Natural History and Science (NMMNHS) Paleontology specimens (Arctos)

2024-01-01

Nicole Volden

The New Mexico Museum of Natural History and Science paleontology collection contains over 80,000 cataloged Items. The strengths of the collection include the fauna and flora of the Kinney Brick … The New Mexico Museum of Natural History and Science paleontology collection contains over 80,000 cataloged Items. The strengths of the collection include the fauna and flora of the Kinney Brick Pennsylvanian Lagerstätten, Permian trackways and traces, Triassic tetrapods, Late Cretaceous invertebrates and reptiles, Paleocene mammals and reptiles, and Neogene mammals.

Condon Fossil Collection - Oregon Museum of Natural and Cultural History

2021-01-01

Edward Davis

The Department of Earth Sciences continues to foster a long-standing link with the University of Oregon Museum of Natural and Cultural History. The personal fossil collection of Thomas Condon, first … The Department of Earth Sciences continues to foster a long-standing link with the University of Oregon Museum of Natural and Cultural History. The personal fossil collection of Thomas Condon, first professor of Geology at UO, formed the nucleus of the Condon Fossil Collection, which currently numbers around 100,000 specimens.

Florística y biogeografía de algunos bosques mesófilos de la Huasteca Hidalguense: Fase 3 (Chapulhuacán y Pisaflores)

2023-01-01

Isolda Luna‐Vega

Los bosques mesófilos de montaña del estado de Hidalgo han sido pobremente estudiados, lo que se ve reflejado en la falta de ejemplares botánicos depositados en las principales colecciones del … Los bosques mesófilos de montaña del estado de Hidalgo han sido pobremente estudiados, lo que se ve reflejado en la falta de ejemplares botánicos depositados en las principales colecciones del país, en la carencia de listados florísticos publicados sobre el área. Dentro del estado de Hidalgo se ubican dos regiones prioritarias para la conservación, las cuales han sido recolectadas intensivamente por nuestro equipo desde 1992 y de la cuales se han publicados listados florísticos, que incluyen especies en peligro de extinción, nuevos géneros y especies y numerosos reportes nuevos para el estado (Luna, Ocegueda y Alcántara, 1994; Alcántara y Luna, en prensa.) El área norte del estado de Hidalgo continúa estando pobremente estudiada, por lo que en este estudio se pretende ahondar en su conocimiento, además de contemplar aspectos sobre la distribución de los taxones, relaciones fitogeográficas, composición y taxones característicos. Los estudios florísticos locales de este tipo de vegetación son indispensables para el diseño de estrategias de bioconservación y uso sostenido de los recursos vegetales. Reino: 1 Filo: 1 Clase: 3 Orden: 56 Familia: 134 Género: 350 Subgénero: 10 Especie: 493 Epitetoinfraespecifico: 23

Brigham Young University Life Science Museum (BYU) Mammal Collection (Arctos)

2024-01-01

Alison S. Whiting

The BYU Life Science Museum mammal collection houses more than 42,000 specimens with emphasis on the Great Basin (especially Utah and Nevada) and Mexico. The collection includes specimens that were … The BYU Life Science Museum mammal collection houses more than 42,000 specimens with emphasis on the Great Basin (especially Utah and Nevada) and Mexico. The collection includes specimens that were formerly at Utah State University as well as a portion of the former University of Illinois Museum of Natural History collection (specimens from Colorado, Idaho, Montana, Oregon, Nevada, Utah, Washington, Wyoming and Mexico). The collection also contains more than 10,000 ethanol-preserved tissues, 15,000 frozen tissues and more than 6,000 DNA archives from Great Basin and Mexican mammals. The BYU Life Science Museum was formerly known as the Monte L. Bean Museum.

The common pot: the recovery of Native space in the Northeast

2009-10-01

Lisa Tanya Brooks

Literary critics frequently portray early Native American writers either as individuals caught between two worlds or as subjects who, even as they defied the colonial world, struggled to exist within … Literary critics frequently portray early Native American writers either as individuals caught between two worlds or as subjects who, even as they defied the colonial world, struggled to exist within it. In striking counterpoint to these analyses, Lisa Brooks demonstrates the ways in which Native leaders-including Samson Occom, Joseph Brant, Hendrick Aupaumut, and William Apess-adopted writing as a tool to reclaim rights and land in the Native networks of what is now the northeastern United States. The Common Pot, a metaphor that appears in Native writings during the eighteenth and nineteenth centuries, embodies land, community, and the shared space of sustenance among relations. Far from being corrupted by forms of writing introduced by European colonizers, Brooks contends, Native people frequently rejected the roles intended for them by their missionary teachers and used the skills they acquired to compose petitions, political tracts, and speeches; to record community councils and histories; and most important, to imagine collectively the routes through which the Common Pot could survive. Reframing the historical landscape of the region, Brooks constructs a provocative new picture of Native space before and after colonization. By recovering and reexamining Algonquian and Iroquoian texts, she shows that writing was not a foreign technology but rather a crucial weapon in the Native Americans' arsenal as they resisted-and today continue to oppose-colonial domination.

Nelson’s Field, Church Lane Farm, Silchester

2025-06-19

Douglas Allen , Jeffrey G. Eaton , Robert Fry +7 more | Oxbow Books

Louisiana and Texas

2025-06-18

| University Press of Mississippi eBooks

La misión jesuita de Batuc, Sonora, en los circuitos mercantiles novohispanos del siglo XVIII: de lo local a lo global

2025-06-16

Bernd Hausberger , Carlos Lázaro‐Milla | Historia Mexicana

El presente artículo pretende mostrar la inserción de la misión de Batuc, Sonora, en los circuitos comerciales de su época. El objetivo que persigue la investigación es examinar a partir … El presente artículo pretende mostrar la inserción de la misión de Batuc, Sonora, en los circuitos comerciales de su época. El objetivo que persigue la investigación es examinar a partir de un caso concreto la conexión entre la economía agraria local con la economía minera regional y su vinculación con los flujos mercantiles novohispanos y globales, convergiendo todos en la ciudad de México. De este modo, quiere señalar la composición del mercado interno colonial de la Nueva España y sondear el alcance de la globalización temprana. Además, echará luces sobre la evolución de la cultura material de las misiones. Para ello, se exploran los pedidos de mercancías, las llamadas “memorias”, que los misioneros enviaban cada año a la Procuraduría de la Compañía de Jesús en la ciudad de México. Dada la disponibilidad de las fuentes, el trabajo se centra en el periodo entre 1700 y 1767.

Virgin Seed (Ipomoea corymbosa and Ipomoea tricolor) among Mixtec, Nahuas, and Mazatec of Guerrero, Oaxaca, and Puebla (Mexico)

2025-06-16

Antonella Fagetti | BRILL eBooks

An All-Black Post in the Middle of the Arizona Desert

2025-06-16

| Cambridge University Press eBooks

3. Jesuit Missionaries from Central European Territories in Northwestern New Spain, 1680–1767

2025-06-14

Bernd Hausberger | Amsterdam University Press eBooks

Hoja informativa sobre la vida silvestre de Florida: armadillo de nueve bandas

2025-06-05

Simon Fitzwilliam , Raoul K. Boughton , Rebeca Prieto +2 more | EDIS

Esta es una hoja informativa sobre la vida silvestre de Florida dedicada al armadillo de nueve bandas. Esta ficha busca informar sobre las características de este animal, la historia de … Esta es una hoja informativa sobre la vida silvestre de Florida dedicada al armadillo de nueve bandas. Esta ficha busca informar sobre las características de este animal, la historia de su presencia en el estado, su distribución actual, biología y comportamiento. El objetivo es informar al público en general sobre esta especie.

Pre-Columbian Great Lakes farmers transformed the land

2025-06-05

Andrew Lawler | Science

Innovative techniques yielded corn, beans, and squash for 600 years before European contact Innovative techniques yielded corn, beans, and squash for 600 years before European contact

The Anglo-Cherokee War and Shifting Alliances

2025-06-02

| University of Pennsylvania Press, Inc. eBooks

Copper Use in the Lower Southeast North America Before Agriculture

2025-06-01

Matthew C. Sanger , Shawn P. Lambert , D. Shane Miller +2 more | Berghahn Books

Memory Wars: Settlers and Natives Remember Washington’s Sullivan Expedition of 1779 by A. Lynn Smith (review)

2025-06-01

Michael D. Hattem | Journal of the Early Republic

Arguments for Multiple Positions of Relative Roots in Passamaquoddy, Penobscot, Meskwaki, and East Cree

2025-06-01

Ying Gong | Michigan State University Press eBooks

A Painting Purported to Depict Abraham Clark, a Signer of the Declaration of Independence from New Jersey, and His Family

2025-05-30

Joseph Hammond | New Jersey Studies An Interdisciplinary Journal

This article investigates a painting in the National Gallery of Art purportedly depicting New Jersey signer of the Declaration of Independence Abraham Clark. This painting is dated 1822, nearly thirty … This article investigates a painting in the National Gallery of Art purportedly depicting New Jersey signer of the Declaration of Independence Abraham Clark. This painting is dated 1822, nearly thirty years after Clark's death, making it dubious that he was the subject. Drawing on extensive genealogical sources and nineteenth century newspapers, this article finds extensive evidence to debunk claims that the painting depicts Abraham Clark.

Interlude: Southern California

2025-05-29

:<i>El Fin del Mundo: A Clovis Site in Sonora, Mexico</i>

2025-05-29

David J. Meltzer | Journal of Anthropological Research

Fixing the stench from Pisa to Florence: visualizing Medici power through swamp drainage imagery

2025-05-28

Felicia M. Else | Notes and Records the Royal Society Journal of the History of Science

Negotiating the waters of early modern Tuscany, a region that suffered from terrible flooding and fetid marshlands, was of key importance to Duke Cosimo I de’ Medici. This study explores … Negotiating the waters of early modern Tuscany, a region that suffered from terrible flooding and fetid marshlands, was of key importance to Duke Cosimo I de’ Medici. This study explores visual representations relating to the unglamorous task of swamp drainage, a subject crafted into complex and lofty works worthy of celebrating Medici rule. Such a feat had no clear visual traditions, so artists and humanists came up with creative strategies in portraying and describing it, calling upon mythological deities, literary and Biblical figures, contemporary maps and even the burlesque. Marshland reclamation could resemble military conquest, architectural construction, or semi-divine heroics. This study looks anew at the associations of power, wealth and control behind the context and metaphors used, emphasizing the unpleasantness of such sites, the need for firmness and the rule of law, and the ensuing rewards that legitimized such actions. The pivotal role of art patron and humanist Luca Martini in Pisa is examined, setting the stage for subsequent works in Florence under Cosimo I.

Impacto del Fuego en el Parque Nacional Cañón del Sumidero, México: Cartografía de su Probabilidad de Ocurrencia

2025-05-28

Josué Alexis Clemente-Quezada , Michelle Farfán Gutiérrez , Roberto Horacio Albores-Arzate +1 more | Madera y Bosques

Los incendios forestales, ya sean de origen natural o antropogénico, son un fenómeno disruptivo que afecta a diversos ecosistemas forestales tanto en México como en el mundo. Su incidencia ha … Los incendios forestales, ya sean de origen natural o antropogénico, son un fenómeno disruptivo que afecta a diversos ecosistemas forestales tanto en México como en el mundo. Su incidencia ha ido en aumento, principalmente debido a las complejas interacciones entre el uso del suelo y el cambio climático. Este incremento se traduce en una mayor frecuencia, intensidad y extensión de áreas quemadas, lo que provoca pérdidas económicas, aumenta la vulnerabilidad social y contribuye a la degradación ambiental. Por lo tanto, resulta crucial identificar las zonas con mayor riesgo de incendios forestales, especialmente en áreas destinadas a la conservación. Con este fin, se desarrolló un modelo de probabilidad espacialmente explícito para incendios forestales, empleando el método de los pesos de evidencia y un conjunto de variables socioambientales. El área de estudio fue el Parque Nacional Cañón del Sumidero (PNCS), una región con importante valor turístico y una rica biodiversidad en el estado de Chiapas, México. Para evaluar el modelo, se comparó con los incendios ocurridos en 2009 utilizando la prueba ROC, obteniendo valores de área bajo la curva aceptables entre 0.66 y 0.70. El tipo de vegetación con mayor probabilidad de sufrir incendios forestales fue la selva baja caducifolia, con un promedio de 161 hectáreas por año quemadas en el período de 2016 a 2021. Finalmente, el mapa de probabilidad se clasificó en cuatro categorías de riesgo: bajo, medio, alto y muy alto. Esta cartografía es esencial para gestionar integralmente el riesgo de incendios forestales en el PNCS.

BATTLE IN SONORA

2025-05-27

Institutions and Governance in Northern Iroquoian Confederacies

2025-05-27

Jennifer Birch

Shamans, Portals, and Water Babies: Southern Paiute Mirrored Landscapes in Southern Nevada

2025-05-22

Kathleen Van Vlack , Richard Arnold , Alannah Bell

Delamar Valley is a unique landscape located in southern Nevada that contains places associated with ceremony and Southern Paiute Creation. This ceremonial landscape is composed of volcanic places, a large … Delamar Valley is a unique landscape located in southern Nevada that contains places associated with ceremony and Southern Paiute Creation. This ceremonial landscape is composed of volcanic places, a large Pleistocene Lake, and an underground hydrological system that allows for the movement of spiritual beings known as water babies between Delamar Valley and neighboring Pahranagat Valley. Paiute shamans traveled to Delamar Valley to interact with the portals along a volcanic ridge that allowed them to travel to a mirrored ceremonial landscape in another dimension of the universe. While in this mirrored landscape, shamans engaged with elements of Creation. This essay examines the ways in which Paiute shamans interacted with various components of the physical and spiritual landscapes.

Missouri's Twin Traumas: II. The Seminex Crisis (1974–)

2025-05-22

Jon Diefenthaler

Abstract: The 1974 "Walk Out" of faculty and students at Concordia Seminary in St. Louis, resulting in "Seminex," may be viewed as the second of twin traumas in the history … Abstract: The 1974 "Walk Out" of faculty and students at Concordia Seminary in St. Louis, resulting in "Seminex," may be viewed as the second of twin traumas in the history of the Lutheran Church–Missouri Synod. Evidence that it has served to reinforce some effects of the trauma of the "Stephan crisis" of 1839 appears in post-Seminex assessments of the decades following World War II as a time in which the LCMS progressively drifted away from its "orthodox" religious heritage. Lasting effects of this pair of traumas can be seen in various efforts to safeguard Missouri's brand of Lutheran orthodoxy and to reaffirm C.F.W. Walther's insistence upon complete unity in doctrine and practice for any type of ecclesiastical fellowship. Equally telling is the tendency of post-Seminex Missouri to identify itself with features of the cultural backlash in American society in response to the tumultuous 1960s, one that has led to its retreat from addressing contemporary social justice issues and to seeing itself instead as a righteous remnant under siege in a hostile American environment.

Great Plains Ethnohistory: New Interdisciplinary Approaches

2025-05-22

Scott Hamilton

How and when North America’s deepest river gorge formed

2025-05-22

Andrew Mitchinson

Re-storying Grant Creek: relational restoration on a degraded Montana Stream

2025-05-21

Samuel B. Land , Daniel T. Spencer

Returning to the River: The Cherokee Diaspora's Hydrospheric Connections

2025-05-21

Gregory D. Smithers

This article reveals how Cherokees are reconnecting with rivers. The following analysis draws from Cherokee cosmo-epistemologies, posthumanism, and the methodological agility of ethnohistory, to argue that members of the Eastern … This article reveals how Cherokees are reconnecting with rivers. The following analysis draws from Cherokee cosmo-epistemologies, posthumanism, and the methodological agility of ethnohistory, to argue that members of the Eastern Band of Cherokee Indians (EBCI) are encouraging Cherokees at home in Southern Appalachia and in the diaspora to do as their ancestors did: be attentive to, and care for, a local uweyv (river), uweyvi (stream), immokalee (waterfall or tumbling water), or ama ganugogv (spring). By returning to the river —or “going to water” —Cherokees at home in the mountain South and those living in the diaspora can unite in recognizing that ama gvnida (water is life). Today, in an age of climate crisis, Cherokees are forming partnerships with non-Cherokee scientists to reclaim spiritual and scientific connections to the riverine ecosystems that their ancestors saw as central to cosmocentric understandings of the world. This reclamation is not without its cautionary tales, but in returning to the river Cherokees are working to help riparian spaces thrive so that Cherokees seven generations into the future will inherit healthy, life-giving waterways.

Hybrid Forms, Composite Creatures, and the Transit Between Worlds in Ancestral Puebloan Imagery

2025-05-20

Matthew Schmader

Rock imagery in the Puebloan region of the American Southwest often combines elements from different animal, human, plant, and natural sources. Blended elements may depict or refer to other-wordly states … Rock imagery in the Puebloan region of the American Southwest often combines elements from different animal, human, plant, and natural sources. Blended elements may depict or refer to other-wordly states of existence or to creation narratives. Beings with combined elements can shift from shapes familiar in the present world and transport the viewer’s frame of reference to the spirit world. Puebloan belief in layering worlds below and above the present world is an important underlying social construct. Other worlds, especially those below, refer to past mythical times when animals and humans existed in primordial forms or were not fully formed, or may refer to the land of the dead or the underworld. Certain animal forms may have been selected because they are spirit guides, have specific powers, or were guardian-gods of cardinal directions. Some animals, such as birds, were chosen as messengers of prayers or offerings, while others (such as bears) had healing powers. The placement of images on the landscape or in relation to natural features imparts added power to the imagery. Ambiguity and multiple meanings also enhance these powers and incorporate concepts of emergence and transformation. Some images refer to the transformation that occurs when dancers wear kachina masks and then assume the attributes of those kachinas. Examples will be presented from images dating to the pre-European contact period (1300 to 1540 AD) found at Petroglyph National Monument, in the central Rio Grande valley of New Mexico. Comparisons to painted wall murals in kivas (ceremonial rooms) made during the same time period are presented.

Historical Land Use and Land Cover Change of the Lake Tempe Region: A Multi-source Data Landscape Reconstruction

2025-05-20

Syahruddin Mansyur , Nur Ihsan Djindar , Wasita Wasita +6 more

Lake Tempe, situated in the Wajo Regency, is an ancient lake in Indonesia that plays a crucial role in the socio-historical evolution of Southern Sulawesi. The Lontara manuscript, a significant … Lake Tempe, situated in the Wajo Regency, is an ancient lake in Indonesia that plays a crucial role in the socio-historical evolution of Southern Sulawesi. The Lontara manuscript, a significant source of regional history, highlights Lake Tempe as a vital resource for adjacent communities. Contemporary narratives of Lake Tempe, however, are overshadowed by recurrent flooding attributed to accelerated sedimentation leading to lake shallowing, which impedes its capacity to manage the inflow from tributary rivers. This study aims to offer a historical perspective by reconstructing the landscape and detailing the evolution of land use and land cover (LU/LC) in the Lake Tempe region, thus enhancing our understanding of the lake's current conditions. We compiled an array of historical and archaeological data, including manuscripts, archival maps, and satellite imagery, spanning the 13th to 20th centuries. Our approach involves historical LU/LC modeling to provide an intricate depiction of the landscape evolution in the Lake Tempe area. Moreover, we presented modeled projections of LU/LC alterations over approximately 86 years (1930-2016). The analysis reveals that pre-20th century landscape dynamics in the region were influenced by several factors: demographic shifts due to local migration, interplay among local elites over natural resource control, and integration into global trade networks from the 13th century onwards. These elements collectively spurred deforestation during periods of agricultural expansion. Starting in the early 20th century, the agricultural development policies of both the Dutch Colonial and the Republic of Indonesia's governments further accelerated land conversion for distinct agricultural purposes. This historical narrative underscores the fact that centuries of anthropogenic activity have been central to the hydrometeorological challenges faced throughout the Lake Tempe region.

Historical Background of the Dam

2025-05-19

Yuen-ching Bellette Lee

Where is the “Real” Grand Canyon?

2025-05-15

Yolanda Youngs

An excerpt from the book "Framing Nature: The Creation of an American Icon at the Grand Canyon." An excerpt from the book "Framing Nature: The Creation of an American Icon at the Grand Canyon."

THE GENRES OF CHOCTAW STORYTELLING

2025-05-14

STORIES IN CHOCTAW

2025-05-14

How Two Fundamentally Different Geology and Glacial History Paradigms Address the Schoharie Creek Drainage Route Problem, New York State, USA

2025-05-13

Eric Clausen

This report compares the ability of two fundamentally different geology and glacial history paradigms to explain how eastern New York State&rsquo;s unusual Schoharie Creek drainage route originated. What makes the … This report compares the ability of two fundamentally different geology and glacial history paradigms to explain how eastern New York State&rsquo;s unusual Schoharie Creek drainage route originated. What makes the drainage route unusual is west-oriented Schoharie Creek headwaters begin at two 300-meter-deep gaps in the 800-meter-high east-facing Catskill Eastern Escarpment (which is also the Hudson River valley&rsquo;s western boundary) and then flow in a west, northwest, and north direction to eventually reach the southeast-flowing Mohawk River which flows to the south-oriented Hudson River. After traveling 280 kilometers in an almost complete circle Schoharie Creek headwaters eventually pass a point that is approximately 600 meters lower and 16 kilometers away from where Schoharie Creek begins. A geologic literature review demonstrates the Schoharie Creek drainage route origin problem attracted the attention of late 19th and early 20th century geologists and physical geographers, but the accepted geology and glacial history paradigm which has been evolving over the past 150 years did not and still does not provide the necessary mechanisms required for researchers to determine what formed the unusual Schoharie Creek drainage route. However, a new geology and glacial history paradigm which was developed by using Missouri River drainage basin drainage system and erosional landform evidence and which uses two linked icesheets, the first of which created and occupied a deep &ldquo;hole&rdquo; in the North American continent and which also generated immense and long-lived meltwater floods, is able to provide a logical, internally consistent, and simple Schoharie Creek drainage route origin problem solution that also explains how many other Catskill Mountain region drainage system and erosional landform features originated.

Kaskaskia Experimental Forest: Historical inventory of an oak-hickory forest in southern Illinois

2025-05-13

Jacob S. Fraser , Lauren S. Pile , Morgan E. Silanskis

A 2 m.y. record of bedrock incision and drainage integration of the upper Green River, western United States

2025-05-13

Andres Aslan , M. T. Heizler , Karl E. Karlstrom +4 more

Since the time of John Wesley Powell, integration of the upper Green River (western United States) across the eastern Uinta Mountains has been a subject of great interest and significance … Since the time of John Wesley Powell, integration of the upper Green River (western United States) across the eastern Uinta Mountains has been a subject of great interest and significance for understanding Colorado Plateau evolution. We address the question of the timing of integration by making novel use of detrital sanidine (DS) 40Ar/39Ar geochronology, which, due to the precision of the method, is emerging as an excellent way to constrain terrace ages that are &gt;0.5 Ma in the western United States. The DS dates, in combination with cosmogenic burial and luminescence dates, produced a long-term (∼2 m.y.) record of the upper Green River in southwestern Wyoming (USA; Peru Bench) and along the Colorado-Utah, USA, border (Browns Park). DS dating of 3461 sanidine grains from 10 terrace deposits (five from Peru Bench and five from Browns Park) produced maximum depositional ages (MDAs), seven of which show a linear relationship of increasing terrace height and age. The DS MDAs at Peru Bench are: 1.304 ± 0.011 Ma (175 m terrace), 1.020 ± 0.046 Ma (150 m terrace), 0.847 ± 0.009 Ma (125 m terrace), and 0.574 ± 0.045 Ma (75 m terrace). The DS MDAs in Browns Park are: 1.980 ± 0.025 Ma (210 m terrace), 1.283 ± 0.018 Ma (130 m terrace), and 0.670 ± 0.004 Ma (45−60 m terrace). Two cosmogenic burial dates for Peru Bench terraces are: 1.24 ± 0.44 (150 m terrace) and 1.40 ± 0.96 Ma (125 m terrace). Two luminescence dates for Peru Bench terraces are: 59.0 ± 10.4 ka (20−30 m terrace) and 35.4 ± 4.2 ka (5−10 m terrace). Regressions of terrace heights and DS ages from both locations show that long-term bedrock incision rates measured over the past ∼2 m.y. have remained remarkably constant through &gt;40 glacial-interglacial cycles, with no apparent influence of the Mid-Pleistocene Transition. This constancy is interpreted to record long-term regional epeirogenic uplift and erosional isostasy. Minimum bedrock incision rates are ∼169 m/m.y. at Peru Bench (upstream) and ∼114 m/m.y. in Browns Park (downstream). The slower incision rate in Browns Park is interpreted to reflect dampening of incision due to Quaternary subsidence within the Browns Park graben. Stratigraphic relations demonstrate that integration of the upper Green River across the eastern Uinta Mountains occurred after the end of Browns Park Formation sedimentation ca. 8 Ma. Published Colorado River detrital zircon analyses from the Salton Trough suggest that upper Green River integration could have occurred as early as ca. 5 Ma. New DS dates show that upper Green River integration was likely complete by ca. 2 Ma. It is also probable that integration of the upper Green River into the Colorado River system contributed to late Cenozoic exhumation of the Colorado Plateau.

Viabilidad de las técnicas de injerto y acodo en una plantación de Brosimum alicastrum Swartz en Campeche, México

2025-05-13

Carlos Antonio Ortigoza-García , Alberto Santillán-Fernández , Alfredo Esteban Tadeo-Noble +2 more

Introducción. Brosimum alicastrum Swartz, especie arbórea con potencial para la alimentación animal y humana, se distribuye de manera natural con nulo manejo silvícola. Objetivo. Determinar que técnica asexual (acodo o … Introducción. Brosimum alicastrum Swartz, especie arbórea con potencial para la alimentación animal y humana, se distribuye de manera natural con nulo manejo silvícola. Objetivo. Determinar que técnica asexual (acodo o injerto) produce los mejores individuos en vivero, para evaluar su viabilidad en una plantación. Materiales y métodos. Se desarrollaron diseños experimentales completamente al azar para evaluar la propagación de acodos (arreglo factorial: sustrato [fibra de coco, peat moss y tierra de monte] y enraizador [Radix 10000® y sin enraizador]) e injertos (yema, chapado lateral, inglés y corona). Posteriormente, se seleccionaron 10 ejemplares al azar de los tratamientos de acodos e injertos, para su establecimiento en una plantación. Se evaluó la sobrevivencia y los parámetros dasométricos en cada tratamiento. Resultados y discusión. El crecimiento de los clones de acodos fue mayor con los sustratos peat moss y tierra de monte (P = 0.05); el enraizador no tuvo efecto significativo. El injerto en yema no fue viable; los prendimientos variaron de 65 a 80 % con las otras técnicas de injerto. Algunos tratamientos de acodo e injerto tuvieron buenos resultados en vivero, pero sus ejemplares no sobrevivieron en la plantación. Los clones de acodos con tierra de monte como sustrato tuvieron los mayores crecimientos y porcentajes de floración (70 %) y producción de frutos (50 %) en la plantación. Conclusiones. Los clones de acodo con tierra de monte y los injertos (inglés y corona) presentaron las mejores características en la plantación. El método de propagación se debe seleccionar con base en el uso final del germoplasma (semilla, hoja o madera).

A comparative life cycle assessment of drip and flood irrigation of in-shell pecan production in the Mesilla Valley, New Mexico, United States

2025-05-09

Raji Lukkoor , Colleen C. Naughton , Sara Torres +4 more

A Recent History of the Lower Colorado River

2025-05-06

Finding Birds in the Lower Colorado River Valley

2025-05-06

Preliminary Map of the Bedrock Geology of the Southern Half of the Bloomington 30- x 60-Minute Quadrangle

2025-05-05

Valerie Beckham-Feller , Kilauren Driscoll , Don Tripp +1 more

The Preliminary Map of the Bedrock Geology of the Southern Half of the Bloomington 30- x 60-minute Quadrangle shows Pennsylvanian and Mississippian bedrock units distributed over six counties. The mapped … The Preliminary Map of the Bedrock Geology of the Southern Half of the Bloomington 30- x 60-minute Quadrangle shows Pennsylvanian and Mississippian bedrock units distributed over six counties. The mapped area includes six physiographic provinces within the Southern Hills and Lowlands Region in south-central Indiana. Bedrock units were characterized with the use of field observations (outcrops) and new and archived borehole data. All bedrock data was consolidated into a single mapping database which was then processed using gridding contour tools contained within ArcGIS Pro, resulting in rock formation contact lines, mappable at 1:100,000 scale. The mapped bedrock units generally strike from northeast to the southwest and range in age from the lower Mississippian (the Borden Group) to the lower Pennsylvanian (Raccoon Creek Group). The map contains brief summaries of all mapped bedrock units, bedrock survey drill hole data points, field observation data points, and a cross section. This geologic map was funded in part through the STATEMAP program supported by the U.S. Geological Survey under Cooperative Agreement No. G23AC00406.