Agricultural and Biological Sciences Plant Science

Botany and Plant Ecology Studies

Description

This cluster of papers covers a wide range of topics related to the diversity, distribution, and conservation of vascular plants in Central Europe. It includes studies on flora, vegetation types, climate change impacts, biodiversity hotspots, invasive species, and the ecological significance of different habitats. The research also addresses the effects of human activities on plant communities and the potential strategies for their conservation.

Keywords

Vascular Plants; Conservation; Flora; Vegetation; Biodiversity; Climate Change; Ecology; Habitat; Invasive Species; Phytogeography

Florabank1 is a database that contains distributional data on the wild flora (indigenous species, archeophytes and naturalised aliens) of Flanders and the Brussels Capital Region. It holds about 3 million … Florabank1 is a database that contains distributional data on the wild flora (indigenous species, archeophytes and naturalised aliens) of Flanders and the Brussels Capital Region. It holds about 3 million records of vascular plants, dating from 1800 till present. Furthermore, it includes ecological data on vascular plant species, redlist category information, Ellenberg values, legal status, global distribution, seed bank etc. The database is an initiative of "Flo.Wer" (www.plantenwerkgroep.be), the Research Institute for Nature and Forest (INBO: www.inbo.be) and the National Botanic Garden of Belgium (www.br.fgov.be). Florabank aims at centralizing botanical distribution data gathered by both professional and amateur botanists and to make these data available to the benefit of nature conservation, policy and scientific research.The occurrence data contained in Florabank1 are extracted from checklists, literature and herbarium specimen information. Of survey lists, the locality name (verbatimLocality), species name, observation date and IFBL square code, the grid system used for plant mapping in Belgium (Van Rompaey 1943), is recorded. For records dating from the period 1972-2004 all pertinent botanical journals dealing with Belgian flora were systematically screened. Analysis of herbarium specimens in the collection of the National Botanic Garden of Belgium, the University of Ghent and the University of Liège provided interesting distribution knowledge concerning rare species, this information is also included in Florabank1. The data recorded before 1972 is available through the Belgian GBIF node (http://data.gbif.org/datasets/resource/10969/), not through FLORABANK1, to avoid duplication of information. A dedicated portal providing access to all published Belgian IFBL records at this moment is available at: http://projects.biodiversity.be/ifblAll data in Florabank1 is georeferenced. Every record holds the decimal centroid coordinates of the IFBL square containing the observation. The uncertainty radius is the smallest circle possible covering the whole IFBL square, which can measure 1 Km² or 4 Km². Florabank is a work in progress and new occurrences are added as they become available; the dataset will be updated through GBIF on a regularly base.
Preface Acknowledgements 1. History and demonstration 2. Scale 3. World climate 4. Climate and vegetation 5. Climate and the distribution of taxa 6. Digest Index. Preface Acknowledgements 1. History and demonstration 2. Scale 3. World climate 4. Climate and vegetation 5. Climate and the distribution of taxa 6. Digest Index.
"Pollen Morphology and Plant Taxonomy." Geologiska Föreningen i Stockholm Förhandlingar, 74(4), pp. 526–527 "Pollen Morphology and Plant Taxonomy." Geologiska Föreningen i Stockholm Förhandlingar, 74(4), pp. 526–527
Part 1 Randomization tests and confidence intervals: the idea of a randomization test examples of a randomization test aspects of randomization testing raised by the examples confidence intervals from randomization. … Part 1 Randomization tests and confidence intervals: the idea of a randomization test examples of a randomization test aspects of randomization testing raised by the examples confidence intervals from randomization. Part 2 Monte Carlo and other computer intensive methods: Monte Carlo tests jackknifing bootstrapping bootstrap tests of significance and confidence intervals. Part 3 Some general considerations: power determining how many randomizations are needed determining a randomization distribution exactly the computer generation of pseudo-random numbers generating random permutations. Part 4 One and two sample tests: the paired comparisons design the one sample randomization test the two sample randomization test the comparison of two samples on multiple measurements. Part 5 Analysis of variance: one factor analysis of variance Bartlett's test for constant variance examples of more complicated types of analysis of variance discussion computer program. Part 6 Regrssion analysis: simple regression testing for a non-zero beta value confidence limits for beta multiple linear regression randomizing X variable values. Part 7 Distance matrices and spatial data: testing for association between distance matrices Mantel's test determining significance by sampling randomization distribution confidence limits for a matrix regression coefficient problems involving more than two matrices. Part 8 Other analyses on spatial data: the study of spatial point patterns Mead's randomization test a test based on nearest neighbour distances testing for an association between two point patterns the Besag-Diggle test tests using distances between points. Part 9 Time series: randomization and time series randomization tests for serial correlation randomization tests for trend randomization tests for periodicity irregularly spaced series tests on times of occurence discussion of procedures for irregular series bootstrap and Monte Carlo tests. Part 10 Multivariate data: univariate and multivariate tests sample means and covariance matrices comparison on sample means vectors chi-squared analyses for count data principal component analysis and other one sample methods discriminate function analysis. Part 11 Ad hoc methods: the construction of tests in non-standard situations testing for randomness of species co-occurences on islands examining time change in niche ovelap probing multivariate data with random skewers other examples. Part 12 Conclusion: randomization methods bootstrap and Monte Carlo methods.
The “Herbarium Willing” is a private Phanerogam collection of Eckhard Willing. The collection is focussed on Greece and central Europe and consists of more then 150.000 specimens which are successively … The “Herbarium Willing” is a private Phanerogam collection of Eckhard Willing. The collection is focussed on Greece and central Europe and consists of more then 150.000 specimens which are successively inserted and barcoded at the BGBM (Herbarium B).
This database contains information from Gothenburg herbarium, Herbarium GB. It is a university-wide research infrastructure at the University of Gothenburg in the Department of Biology and Environmental Science. The collections … This database contains information from Gothenburg herbarium, Herbarium GB. It is a university-wide research infrastructure at the University of Gothenburg in the Department of Biology and Environmental Science. The collections include about 1 million dried specimens from all corners of the world. The vascular plant collection is dominant and comprises about 750,000 specimens, while the other 250,000 specimens are mosses, algae, fungi, lichens and slime fungi. The vascular plants contain a rich Nordic material, but also large collections from the Middle East, the Mediterranean and tropical South America. The latter collection reflects the department's more than 50 years of research activities in the region, especially within the Flora of Ecuador project, and which has resulted in the following families being particularly richly represented: Asteraceae, Cyclanthaceae, Heliconiaceae, Marantaceae, Rubiaceae and Scrophulariaceae. Among the non-vascular plant collections, the mushroom collection is the largest and comprises about 100,000 specimens. This mainly consists of base fungi from Northern Europe, a large part of which are wood-degrading crust and bracket fungi. The herbarium also has collections of Psathyrellaceae, Hygrophoraceae, Lycoperdaceae, Inocybeaceae, Russulales and Boletales. Assignments of coordinates to many localities are primarily generated through Sweden's Virtual Herbarium workflow (http://herbarium.emg.umu.se/), which includes transformations from Swedish coordinate systems as well as coordinates for centroids representing geographic or political units. The GBIF dataset is harvested from Sweden's Virtual Herbarium after these georeferencing protocols have been applied, indicated for each record in dwc:georeferenceRemarks where the relevant protocol has been documented.
The Herbarium Hamburgense of the University of Hamburg (acronym HBG) is the 4th largest herbarium in Germany and holds a collection of more than 1.8 million preserved plant specimens. All … The Herbarium Hamburgense of the University of Hamburg (acronym HBG) is the 4th largest herbarium in Germany and holds a collection of more than 1.8 million preserved plant specimens. All plant groups, e.g. flowering plants, ferns, mosses, lichens, fungi and algae are covered. The scope is worldwide and the collections span a period of 300 years. There are special collections such as the bulky specimens and alcohol collections, galls and teratologia as well as the autograph and portrait collection. The collections are growing by field studies of staff and members of the Biodiversity, Evolution and Ecology working group of the Biocenter Klein Flottbek of the the University of Hamburg. So far, almost 40000 herbarium sheets have been fully digitized including nearly 20000 type specimens.
Observations floristiques floutées à la maille de 10 km issues de la base de données flore du Conservatoire botanique national alpin (CBNA). Ces observations sont produites par le CBNA, les … Observations floristiques floutées à la maille de 10 km issues de la base de données flore du Conservatoire botanique national alpin (CBNA). Ces observations sont produites par le CBNA, les partenaires du CBNA ou proviennent de la bibliographie ou d'herbier. Ces observations sont diffusées sue la plateforme du Pôle d'Informations Flore Habitats (PIFH) de la région Auvergne-Rhône-Alpes.
The area in total is 175 hectares (ca 430 acres), of which most constitutes a nature reserve including the arboretum. The garden proper is about 40 hectares and here grow … The area in total is 175 hectares (ca 430 acres), of which most constitutes a nature reserve including the arboretum. The garden proper is about 40 hectares and here grow some 16,000 different species and cultivars. There are many different parts of the garden such as the Rhododendron Valley, the Japanese Glade and the Rockgarden. In the Greenhouses you will find about 4,000 various species and cultivars, including some 1,500 orchids, a remarkable travertine department and the rare Eastern Island Tree. The garden is involved in conservation projects of threatened species in western Sweden.
This dataset is maintained by Info Flora (National Data and Information Center of Swiss Flora), a member of Info Species. It includes records of vascular plants from Switzerland and the … This dataset is maintained by Info Flora (National Data and Information Center of Swiss Flora), a member of Info Species. It includes records of vascular plants from Switzerland and the adjacent area. Data sources include field observations provided by a large network of volunteer collaborators, environmental impact studies, national inventories (Red List strategy), museum collections, literature and academic work. The period covered by the data extends from 1700 to the present day. All data provided have been subject to a validation procedure.
Observations floristiques issues de la base de données flore du Conservatoire botanique national alpin (CBNA). Ces observations sont produites par le CBNA, les partenaires du CBNA (Parcs nationaux de la … Observations floristiques issues de la base de données flore du Conservatoire botanique national alpin (CBNA). Ces observations sont produites par le CBNA, les partenaires du CBNA (Parcs nationaux de la Vanoise et des Ecrins, FRAPNA 01). Ces observations sont diffusées sur la plateforme du Pôle d'Informations Flore Habitats (PIFH) de la région Auvergne-Rhône-Alpes.
Verbreitung der Farn- und Bluetenpflanzen in Deutschland, Vorkommensnachweise aggregiert auf Quadranten der Topographischen Karte 1 : 25000 (TK25 = MTB), sowie in Zeitperioden , <1950 - 1980>, Verbreitung der Farn- und Bluetenpflanzen in Deutschland, Vorkommensnachweise aggregiert auf Quadranten der Topographischen Karte 1 : 25000 (TK25 = MTB), sowie in Zeitperioden , <1950 - 1980>,
Objectif: Rassembler l'ensemble des données floristiques d'Alsace. Mise en place d'un Atlas et d'un inventaire permanent de la Flore Réseau de collecte: Membres de la Société Botanique d'Alsace, saisie des … Objectif: Rassembler l'ensemble des données floristiques d'Alsace. Mise en place d'un Atlas et d'un inventaire permanent de la Flore Réseau de collecte: Membres de la Société Botanique d'Alsace, saisie des travaux, publications, rapports, plan de gestion, docob, analyse de toutes les publications floristiques régionales, etc. Publications: Atlas de la Flore d'Alsace : http://www.atlasflorealsace.com/ Nombreuses publications dans le Bulletin de Liaison de la Société Botanique d'Alsace : http://www.sbalsace.org/ Protocole de collecte des données : Observations des membres de la SBA, sorties de terrain, bibliographie (revues, ouvrages, mémoires, études, manuscrits, etc.), saisie des spécimens d'herbier (e-ReColNat et recensement des herbiers d'Alsace), etc.
The vascular plant herbarium TROM at The Arctic University Museum of Norway (former Tromsø Museum) houses about 200 000 specimens. The collection is arranged in four parts: Nordic, Arctic, ‘Other … The vascular plant herbarium TROM at The Arctic University Museum of Norway (former Tromsø Museum) houses about 200 000 specimens. The collection is arranged in four parts: Nordic, Arctic, ‘Other foreign’ and Garden plants. TROM is particularly rich in accessions from the North of Norwegian mainland. Among the Nordic collections, 80-85 % originate from North Norway, Troms og Finnmark and Nordland counties. Herbarium also contains valuable collections from other Nordic countries as well as the circum-arctic areas. The Arctic herbarium contains over 10 000 specimens from Svalbard, Bjørnøya, Greenland, arctic Russia, arctic Canada and Alaska.
This article describes the author’s first encounter with the two botanists Ingvar Kärnefelt and Arne Thell, which arose in connection with the planning and development of a trans-national, European exhibition … This article describes the author’s first encounter with the two botanists Ingvar Kärnefelt and Arne Thell, which arose in connection with the planning and development of a trans-national, European exhibition project on the history of botanical illustrations. Although this wonderful exhibition project would have brought together institutions in Switzerland, Germany, Sweden and Poland, it was abandoned due to complicated bureaucratic obstacles imposed by EU funding programmes; however, the collaboration at least resulted in a wonderful friendship between Ingvar Kärnefelt, Arne Thell and the author, a friendship that has endured for almost two decades. In addition to the narrative of these encounters, the exhibition project is briefly presented.
Fen ragwort, Jacobaea paludosa has a very small distribution area in Scandinavia being restricted to Skåne [Scania], the southernmost province of Sweden. It is rather common only in the Kristianstad … Fen ragwort, Jacobaea paludosa has a very small distribution area in Scandinavia being restricted to Skåne [Scania], the southernmost province of Sweden. It is rather common only in the Kristianstad area along the river Helgeå. The species has been inventoried in the years 1983, 2000 and 2012, and a follow-up of seven selected sites in Kristianstad Vattenrike was performed annually 2000–2024. Both the number of localities and the number of individuals fluctuated considerably throughout the years. Factors affecting the species’ well-being and frequency as well as its threats are evaluated.
The study presents the initial results of in vitro culture establishment for the rare species Oxytropis pilosa of the legume family (Fabaceae). Plants derived from seeds were cultured on Murashige … The study presents the initial results of in vitro culture establishment for the rare species Oxytropis pilosa of the legume family (Fabaceae). Plants derived from seeds were cultured on Murashige and Skoog medium. The eff ects of growth regulators – 6-benzylaminopurine, naphthylacetic acid, thidiazuron, indole-3-butyric acid – on shoot micropropagation and rhizogenesis of the species were evaluated. The highest multiplication rate and root formation were observed with the addition of 0.1015 mg/L indole-3-butyric acid.
This study investigates the variations in the Universal Thermal Climate Index (UTCI) calculated based on meteorological data from six synoptic stations across the Central Region of Poland from 2001 to … This study investigates the variations in the Universal Thermal Climate Index (UTCI) calculated based on meteorological data from six synoptic stations across the Central Region of Poland from 2001 to 2024, focusing on spatial and temporal trends in thermal stress. The average annual UTCI was found to be 7.7 °C, indicating “slight cold stress,” with regional differences. Higher values were recorded in the west and northwest compared to lower values in the southeast. Maximum UTCI values associated with “very strong heat stress” exceeded 40.0 °C, while minimum values denoting “extreme cold stress” occurred in eastern cities more often. A linear trend analysis revealed a general increase in UTCI values across all stations, varying from 0.6 °C to 1.8 °C per decade, and showed distinct positive trends for heat stress categories, particularly “strong heat stress.” In contrast, a decrease in “strong cold stress” was observed. Favorable bioclimatic conditions, defined as “comfort”, predominated during most months, especially from April to October, while extreme thermal conditions were infrequently recorded. This research shows significant changes in thermal comfort and stress patterns, highlighting regional disparities and the implications for public health and urban planning in response to evolving bioclimatic conditions.
Based on a long tradition of field research aimed at this group, stipitate hydnoid fungi belong to the best explored macromycetes in Czechia. However, following groundbreaking taxonomic changes emerging from … Based on a long tradition of field research aimed at this group, stipitate hydnoid fungi belong to the best explored macromycetes in Czechia. However, following groundbreaking taxonomic changes emerging from recent molecular studies, previous knowledge of particular taxa and their features has been questioned. To resolve this issue, selected specimens of Czech hydnoids were sequenced to confirm their identity. Generally, the presence of 39 taxa of Boletopsis , Hydnellum , Phellodon , and Sarcodon in the Czech Republic was confirmed, including the recently described species Boletopsis mediterraneensis , Hydnellum bomiense , H. fagiscabrosum , H. rubidofuscum , Phellodon aquiloniniger , P. castaneoleucus , and two so far undescribed taxa of Boletopsis and Hydnellum , as well as the recently reported Hydnellum gracilipes , H. illudens , Phellodon secretus and Sarcodon quercinofibulatus . Ecological requirements of newly delimited species are specified based on collection data from Czech localities, and GlobalFungi data are presented to supplement the current knowledge of the global distribution of particular species. Taxonomic issues, identification limits in species complexes, ecology, and threats to the species are discussed in relevant cases. Several more species, documented from or probably present in Czechia but not sequenced yet, are commented as well.
Adam Stebel , Z. Wilczek , Mariusz Wierzgoń +1 more | Bogucki Wydawnictwo Naukowe eBooks
Modern cities face a variety of environmental challenges. The greening of urban areas is becoming an important tool for improving the quality of life of the residents and increasing the … Modern cities face a variety of environmental challenges. The greening of urban areas is becoming an important tool for improving the quality of life of the residents and increasing the sustainability of urban ecosystems. Plants are an integral part of urban infrastructure, performing a whole range of functions. Trees and shrubs, in particular, play a significant role in the formation of the urban ecosystem, the species diversity of which allows maintaining the ecological balance of the urban environment. This article examines the species diversity and the state of the dendroflora in the Podolsk urban district, as well as the impact of the urban environment on the viability of tree and shrub species. A total of 68 species of trees and shrubs belonging to 19 families and 37 genera were identified on the territory of Podolsk urban district. The most common families are the Rosaceae and Salicaceae. Among the trees of Podolsk, 25 species are indigenous, 43 are introduced. The analysis showed that 57.6 % of trees and 63.1 % of shrubs were in good condition, however, some green areas in the urban district required additional care and restoration. The average condition score for each species and the overall condition coefficient of trees and shrubs were also calculated. It was revealed that some of the tree stands and shrubs designated for general and limited use in Podolsk urban district were healthy, while others were weakened. It was revealed that some of the tree stands and shrubs of general and limited use in Podolsk urban district were healthy, and some were weakened. Monitoring the condition of green spaces helps to identify deficiencies in their infrastructure and contributes to the optimal management of this infrastructure, which, in turn, helps to create a comfortable and environmentally safe urban environment.
The aim of the study is to identify plant communities susceptible to the invasion of Bidens frondosa in the coastal zone of the Sejm River in Kursk. During the summer … The aim of the study is to identify plant communities susceptible to the invasion of Bidens frondosa in the coastal zone of the Sejm River in Kursk. During the summer of 2024, twenty releves were conducted in coastal ecotopes. The processing of the material was carried out according to the principles of ecological-floristic approach. As a result, seven associations were identified, consisting of 5 unions, 5 orders and 4 classes. The analysis of the structure of plant communities revealed that the highest rates of plant cover were typical for associations belonging to the classes of Phragmito-Magnocaricetea, Molinio-Arrhenatheretea and Epilobietea angustifolii, which were less susceptible to anthropogenic influence. The communities classified as Bidentetea class, exhibited lower plant cover, which is associated with regular disturbances of vegetation and soil. The maximum average number of species per a test plot was observed in association Agrostio stoloniferae–Xanthietum albini, characterized by a variable moisture regime and the presence of species from periodically disturbed habitats. A study of ecological regimes has shown that Bidens frondosa is embedded in plant communities with a sufficiently wide range of habitat conditions. The greatest variation is typical for such factors as moisture, soil acidity, shading and illumination, as well as the level of anthropogenic impact in an urban environment, which reflect the indicators of hemerobiality and urbanity. The most favorable conditions for Bidens frondosa are increased soil moisture and severe disturbances developing in communities of Bidentetum frondosae association, in which this species dominates and serves as a diagnostic indicator. In communities of riparian-aquatic and meadow vegetation belonging to the classes of the Phragmito-Magnocaricetea and Molinio-Arrhenatheretea, Bidens frondosa is recorded in lower abundance. Howerver, it occurs there regularly in them, potentially influenced by recreational activities along the banks of the Seim River, which contribute to the degradation of natural ecosystems and reduce the resilience of phytocenoses to the invasion of alien species.
Typologia to jedna z najważniejszych procedur umożliwiających podział i systematyzowanie jednostek taksonomicznych w środowisku przyrodniczym, której efektem jest mapa typów klasyfikowanych jednostek. Główny cel pracy stanowiło opracowanie typologii środowiska przyrodniczego … Typologia to jedna z najważniejszych procedur umożliwiających podział i systematyzowanie jednostek taksonomicznych w środowisku przyrodniczym, której efektem jest mapa typów klasyfikowanych jednostek. Główny cel pracy stanowiło opracowanie typologii środowiska przyrodniczego południowej części Wyżyny Krakowsko-Częstochowskiej przy wykorzystaniu metody indukcyjnej (kartowanie terenowe), a także sprawdzenie, czy granice wyróżnionych jednostek jakkolwiek nawiązują swoim przebiegiem do granic najnowszych podziałów regionalnych i krajobrazowych Polski, przeprowadzonych metodami dedukcyjnymi. Obszarem badań była urozmaicona wapiennymi ostańcami i rozcięta głębokimi dolinami krasowymi wierzchowina Wyżyny Olkuskiej, a także fragmenty obniżenia Rowu Krzeszowickiego i zrębu Garbu Tenczyńskiego. Rezultatem przeprowadzonego kartowania było wyodrębnienie 872 odrębnych jednostek (uroczysk), zgrupowanych później w 22 typy. Za główne kryteria typologii uznano różnorodność geologiczno-morfologiczną, typy gleb i zmienność potencjalnej roślinności naturalnej, a więc elementy uznane przez German (1992) za najbardziej reprezentatywne. Przyjmując te kryteria dokonano grupowania typologicznego, a w wyniku nałożenia cech wskaźnikowych uzyskano cztery typy środowiska przyrodniczego, którymi są: I – typ środowiska dolin martwych wyciętych w skałach średnio i bardzo odpornych, z kompleksem mad i gleb deluwialnych oraz potencjalnym zbiorowiskiem łęgów i grądów niskich; II – typ środowiska sterasowanych den dolin, wyciętych w skałach mało odpornych, z kompleksem mad oraz potencjalnym zbiorowiskiem łęgów i grądów niskich; III – typ środowiska wysoczyzn zbudowanych ze skał mało odpornych, z kompleksem gleb płowych, brunatnych i deluwialnych próchnicznych oraz potencjalnym zbiorowiskiem grądów wysokich; IV – typ środowiska wyżyn węglanowych zbudowanych ze skał średnio i bardzo odpornych, z kompleksem rędzin i gleb płowych oraz potencjalnym zbiorowiskiem buczyn, borów mieszanych i grądów wysokich.
| Ilmastokatsaus
This study aimed to estimate the current and future potential status of Crataegus monogyna Jacq. which is one of the important Non-Wood Forest Product (NWFPs) species in the Bozdaglar Mountains … This study aimed to estimate the current and future potential status of Crataegus monogyna Jacq. which is one of the important Non-Wood Forest Product (NWFPs) species in the Bozdaglar Mountains in the Aegean Region of Türkiye. MaxEnt method was used for potential distribution modelling and mapping of the target species. Climate data were obtained from the WorldClim database. Data on future climate conditions were downloaded from the UKESM1-0-LL projection for the years 2081-2100. As a result of the modelling process, the AUC value of the training dataset was 0.802 and the test dataset AUC value was 0.609. The variables shaping the model were BIO12 (annual precipitation), BIO7 (temperature annual range (BIO5-BIO6)), HI (heat index), TPI (topographical position index), and BIO13 (precipitation of wettest month). We found that the suitable distribution area of the target species, which is currently 182,214 ha, is estimated to decrease by 7,311 ha under the worst-case scenario SSP5 8.5, whereas the unsuitable area, which is currently 75,490 ha, is estimated to increase by 250,393 ha. The findings obtained in this study will aid in developing site-specific conservation strategies and management plans relevant to forestry.
U radu su inventarizirane i analizirane drvenaste biljke Nacionalnog parka Brijuni. Istražene su autohtone i alohtone svojte prisutne 2021. i 2022. godine na otocima Veli Brijun, Mali Brijun i Krasnica … U radu su inventarizirane i analizirane drvenaste biljke Nacionalnog parka Brijuni. Istražene su autohtone i alohtone svojte prisutne 2021. i 2022. godine na otocima Veli Brijun, Mali Brijun i Krasnica (Vanga). Analizirani su sljedeći podaci: broj svojti, pripadnost porodici, areal, habitus, trajnost listova, jedinstvene, razmjerno rijetko prisutne i invazivne svojte u Hrvatskoj. Zabilježeno je 228 drvenastih vrsta, podvrsta, varijeteta, kultivara i križanaca, od čega je 27 golosjemenjača, iz 13 rodova, a 201 kritosjemenjača, iz 128 rodova. Najviše rodova ima porodica Rosaceae, zatim slijede Lamiaceae, Asparagaceae i Cupressaceae. Najveći broj svojti imaju rodovi Prunus i Ficus. Prema habitusu, najzastupljenije su svojte drveća, dok su prema trajnosti listova najbrojnije vazdazelene svojte. Među zabilježenim svojtama nijedna nije jedinstvena za Hrvatsku, ali osam ih je razmjerno rijetko prisutno u uzgoju. Na području Nacionalnog parka Brijuni zabilježena je samo jedna u Hrvatskoj strogo zaštićena biljna vrsta, obična tisa (Taxus baccata L.), kao i dvije invazivne vrste, pajasen (Ailanthus altissima (Mill.) Swingle) i bagrem (Robinia pseudoacacia L.). Na temelju istraživanja i dostupnih literaturnih podataka provedena je usporedba sadašnjeg stanja dendroflore s podacima s početka i kraja prošlog stoljeća. Istraživanje je pokazalo da je tijekom nešto više od jednog stoljeća došlo do značajne izmjene u sastavu drvenaste flore. Rezultati ovog rada pružaju vrijedan uvid u raznolikost i dinamiku dendroflore Nacionalnog parka Brijuni te naglašavaju važnost kontinuiranog monitoringa.
<title>Abstract</title> The impact of past anthropogenic disturbance on the amount and distribution of genetic diversity is a key factor in determining the resilience of tree species to environmental change. This … <title>Abstract</title> The impact of past anthropogenic disturbance on the amount and distribution of genetic diversity is a key factor in determining the resilience of tree species to environmental change. This is particularly the case for narrowly distributed species where this disturbance has impacted most of the species’ range. Here we examine the legacy of post-colonial logging and fire on patterns of genetic diversity in the Tasmanian palaeoendemic conifer Lagarostrobos franklinii (Podocarpaceae), a fire sensitive and slow growing rainforest tree valued for its durable timber. Thirty-three populations (12 of which represent primary stands) from across the species range were genotyped using 8 nuclear SSRs (871 samples) and MIG-seq-based single nucleotide polymorphisms (254 samples). Genetic differentiation was relatively high for conifers (Fst of 0.113 and 0.143 for nuclear SSR and MIG-seq, respectively) with the most diverged populations near the species northern and southern range limits and cryptic divergence between populations geographically close but in differing river catchments likely reflecting postglacial dispersal from distinct Last Glacial refugia and low levels of gene flow. Population level genetic diversity was greatest in the core of the range with no significant correlation with the history of post-colonial human disturbance (i.e. primary vs. non primary stands) and, unexpectedly, given the greater impact of logging at lower elevations, a significant decline in allelic richness with elevation. Overall, this study shows that L. franklinii has been resilient to past timber exploitation and uncovers previously undetected genetic patterns that will help guide the conservation of this important conifer into the future.
Eckhard Von Raab-Straube , Thomas Raus | Willdenowia - Annals of the Botanic Garden and Botanical Museum Berlin-Dahlem
Tortrix viridana (Linnaeus, 1758) (Lepidoptera: Tortricidae) (TV) is a serious pest of oaks in the West-Palearctic. In Ukraine in the 50–70s of the 20th century, the area of TV outbreaks … Tortrix viridana (Linnaeus, 1758) (Lepidoptera: Tortricidae) (TV) is a serious pest of oaks in the West-Palearctic. In Ukraine in the 50–70s of the 20th century, the area of TV outbreaks reached 140–180 thousand hectares. Since the late 1980s, outbreaks have become rarer and have occurred in a smaller area. This research aimed to assess the main parameters of TV outbreaks in Ukraine, considering its prevalence in flush feeders’ complex, the suitability of forest structure for this insect, and the phenological mismatch between bud-flushing and TV hatching. Historical data on TV outbreaks in Ukraine since 1947, data for 1978–2025 by regions, field and climate data, and forest management databases as of 1996 and 2017 from the Kharkiv region were analyzed. Since 1985, the incidence, severity, and duration of TV outbreaks have decreased in all regions of Ukraine. It was explained by: (1) TV decrease in the flush feeding complex due to monophagy; (2) decrease in the suitable area due to a change in the forest age composition, proportion of pure oak stands, and stands with low relative stocking density; (3) the shift of oak bud-flushing and TV hatching to earlier dates with the tendency of earlier bud-flushing than egg-hatching.
Herbarizing and documenting specimens of extra value is the primary mission of the Herbarium maintained at the National Center for Plant Genetic Resources. Herbarium materials representing the nomenclatural types of … Herbarizing and documenting specimens of extra value is the primary mission of the Herbarium maintained at the National Center for Plant Genetic Resources. Herbarium materials representing the nomenclatural types of cultivated plants and their wild relatives, nomenclatural standards of domestic cultivars, traditional crop landraces, and species of crop wild relatives endemic to Russia are the most valuable scientific objects requiring permanent safe conservation and replenishment. Such goal cannot be achieved without solving the major task: unification of the rules that regulate the collecting of plant specimens and arrangement of herbarium lists for nomenclatural standards. With this in view, we summarized methodological approaches to herbarization for scientific collections from published sources and evaluated some long-proven herbarization practices for specimens representing the diversity of both wild and cultivated plants.
<title>Abstract</title> Understanding the connection between alfalfa (<italic>Medicago sativa</italic> L.) harvesting stage and forage quality will allow optimum timing of harvest. A field experiment was established to study the variation of … <title>Abstract</title> Understanding the connection between alfalfa (<italic>Medicago sativa</italic> L.) harvesting stage and forage quality will allow optimum timing of harvest. A field experiment was established to study the variation of forage quality of six cultivars of alfalfa harvested at three stages of harvest duration. The forage quality of alfalfa cultivars was significantly different at different stages of plant development. Crude fiber, NDF and ADF increased with increasing plant age ranging from 16.9%, 40.27 g kg<sup>− 1</sup> DM and 23.3 g kg<sup>− 1</sup> DM to 26.4%, 49.38 g kg<sup>− 1</sup> DM and 41.33 g kg<sup>− 1</sup> DM, respectively; while leaf to stem ratio, crude protein, DMD, TDN, DMI, RFV and ME decreased from 1.54%, 72.33 g kg<sup>− 1</sup> DM, 71.25 g kg<sup>− 1</sup> DM, 3.01 g kg<sup>− 1</sup> DM, 175.33% and 1.29 MJ to 1.12%, 50.66 g kg<sup>− 1</sup> DM, 48.03 g kg<sup>− 1</sup> DM, 2.45 g kg<sup>− 1</sup> DM, 85.25% and 6.61 MJ. Difference in the forage quality among alfalfa cultivars can be mainly caused by genetic diversity of plants and variation in the partitioning of assimilates to reproductive parts. The recognized superior cultivar will be used to improve the nutritional value of forage crops in the breeding programs. Our data suggests that the relationship between forage quality and harvest time had significant effect on forage quality than cultivar differences or genetic selection.
ABSTRACT The evergreen ivy ( Hedera helix L.), traditionally used to treat respiratory conditions, contains triterpene saponins, primarily hederacoside C, and various phenolic compounds. This study investigated the relationships between … ABSTRACT The evergreen ivy ( Hedera helix L.), traditionally used to treat respiratory conditions, contains triterpene saponins, primarily hederacoside C, and various phenolic compounds. This study investigated the relationships between the chemical composition of ivy leaves and their natural growing conditions (moisture, temperature, pH, and electrical conductivity of soil). Ivy leaves were collected monthly over 1 year from oak and beech forests. Hederacoside C, rutin, chlorogenic acid (ChA), neoChA, 4,5‐dicaffeoylquinic acid (DCQA), and 3,5‐DCQA were analyzed by high‐performance thin‐layer chromatography (HPTLC) and high‐performance liquid chromatography (HPLC). Soil parameter data, along with the quantitative HPLC results of ivy leaves, were first subjected to bivariate analysis, which revealed significant correlations, particularly between soil moisture, soil temperature, and the chemical composition of ivy leaves. In addition, ivy samples were classified and clustered based on seasons by principal component analysis (PCA) and hierarchical cluster analysis (HCA), regardless of their collection sites. Digitized HPTLC chromatograms were evaluated by PCA and partial least squares discriminant analysis (PLS‐DA) analyses; PCA enabled the grouping of ivy leaves based on their collection sites, and PLS‐DA categorized the samples by seasons. The evaluation of the relationships between the phytochemistry of ivy leaves and their natural growing conditions has been reported for the first time.
Abstract Increased ocean temperatures have led to large‐scale declines in many ecologically important species, including kelp forests. Spatial heterogeneity across seascapes could protect kelp individuals and small populations from thermal … Abstract Increased ocean temperatures have led to large‐scale declines in many ecologically important species, including kelp forests. Spatial heterogeneity across seascapes could protect kelp individuals and small populations from thermal stress and nutrient limitation. Habitat features within upwelling regions may facilitate the transport of deep, cold water into shallow systems, but little is known about the spatiotemporal occurrence or stability of these climate refugia. Kelp in climate refugia may, however, also experience other stressors, such as overgrazing by kelp herbivores, reducing their effectiveness. Here, we use high‐resolution kelp canopy maps generated from CubeSat constellation data to characterize kelp persistence in northern California following a dramatic decline in kelp abundance due to increased temperature and nutrient limitation during a severe marine heatwave and continued intense grazing pressure by purple sea urchins. Kelp persistence was associated with local areas of relatively cool water temperature and seascape features such as shallow depths and low‐complexity bathymetry, which may have provided refuge from overgrazing. However, a very small percentage of kelp forests in the region exhibited high persistence, with many forests present in only one or two of the 9 years studied. Most kelp patches were not spatially stable over time. Initially, kelp presence aligned with climate refugia, but as overgrazing emerged as the dominant driver of kelp distributions post‐2019, kelp shifted to areas that offered protection from grazing pressure. Synthesis . Cooler areas with localized upwelling acted as climate refugia during the increased ocean temperatures from the 2014–2016 marine heatwave, supporting nutrient‐rich environments and mitigating heat stress for kelp forests. However, these temperature refugia often did not spatially overlap with areas providing protection from grazing pressure, leaving kelp forests vulnerable to future warming even within temperature refugia if grazing pressure remains high.
W artykule omówiono teoretyczne podstawy bajkoterapii oraz jej zastosowanie w pracy z dziećmi z różnymi trudnościami. Podkreślono, że bajki te nie tylko przekazują wartości uniwersalne, lecz także pomagają dziecku zrozumieć … W artykule omówiono teoretyczne podstawy bajkoterapii oraz jej zastosowanie w pracy z dziećmi z różnymi trudnościami. Podkreślono, że bajki te nie tylko przekazują wartości uniwersalne, lecz także pomagają dziecku zrozumieć i wyrazić własne uczucia. Proces identyfikacji z bohaterami umożliwia dzieciom przepracowanie ich własnych trudności w bezpieczny i kontrolowany sposób. Badania pokazują, że bajkoterapia ma pozytywny wpływ na dzieci z zaburzeniami emocjonalnymi, lękowymi oraz w sytuacjach kryzysowych, takich jak rozwód rodziców czy choroba. Wnioski z artykułu sugerują, że bajkoterapia może być skutecznym narzędziem terapeutycznym, zwłaszcza jako uzupełnienie tradycyjnych form terapii.
Posing the question of the position of zoological gardens within the systematics of administrative law allows for a deeper analysis and an attempt to classify them within the administrative legal … Posing the question of the position of zoological gardens within the systematics of administrative law allows for a deeper analysis and an attempt to classify them within the administrative legal system, focusing on their qualification as administrative establishments. Zoological gardens, which have been operating for over two hundred years, have undergone functional transformations, and today operate within the framework of nature conservation. Administrative law distinguishes nature protection as a core task of local and regional governments, with the administrative establishments they create serving to fulfill these tasks. The literature discusses issues related to defining administrative establishments and the difficulties involved in qualifying certain activities as public establishments. The blending of private and public law causes additional legal challenges. A particular difficulty for the doctrine lies in classifying or at least recognizing the existence of atypical administrative entities, whose essence is the performance of public tasks by non-public entities, under a specific concept developed within administrative law. The analysis conducted concludes that contemporary zoological gardens operate in several legal forms, the most common being the classical administrative establishment. Other legal forms, such as enterprises, foundations, and institutions, are also used. The most interesting and atypical form is what is termed a private-law public service establishment, which, as mentioned earlier, poses a challenge to the science of administrative law. The article concludes that the current state of affairs necessitates the introduction of new concepts. The analysis here facilitates conclusions regarding the doctrinal reform of the definition and typology of administrative establishments understood in the broad sense.