1,721,149 research outputs found
Vegetation classification and its application are relevant globally
No full textThe annual editorial of Phytocoenologia 2019 brings bittersweet news about plot-based vegetation classification. On the one hand, the editorial of our Special Issue “Classification Approaches” (issue 48(2)) reported noticeable gaps in several regions of the world. On the other hand, articles in recent Phytocoenologia reach more and more of these underrepresented regions and extend to previously rarely classified plant formations. Our last issues 48(1–4) included several papers applying vegetation classification to address a number of ecological and socio-economical questions. We highlight the classification of steppe vegetation in Pamir Alai and Tian-Shan Mountains in Middle Asia and acknowledge the author with the Editor’s Award 2018. Our Ecoinformatics Section attracts many submissions, but we regret that in 2018 we did not publish any paper in the Phytosociological Nomenclature Section
GrassPlot v. 2.00 – first update on the database of multi-scale plant diversity in Palaearctic grasslands
Full text linkIdoia Biurrun, Idoia;Burrascano, Sabina;Dembicz, Iwona;Guarino, Riccardo;Kapfer, Jutta;Pielech, Remigiusz;Garcia-Mijangos, Itziar;Wagner, Viktoria;Palpurina, Salza;Mimet, Anne;Pellissier, Vincent;Marcenò, Corrado;Nowak, Arkadiusz;Bergamini, Ariel;Boch, Steffen;Csergő, Anna Mária;Grytnes, John-Arvid;Campos, Juan Antonio;Erschbamer, Brigitta;Jiménez-Alfaro, Borja;Kącki, Zygmunt;Kuzemko, Anna;Manthey, Michael;van Meerbeek, Koenraad;Swacha, Grzegorz;Afif, Elias;Alatalo, Juha M.;Aleffi, Michele;Babbi, Manuel;Bátori, Zoltán;Belonovskaya, Elena;Berg, Christian;Bhatta, Kuber Prasad;Cancellieri, Laura;Ceulemans, Tobias;Deák, Balázs;Demeter, László;Deng, Lei;Doležal, Jiří;Dolnik, Christian;Dramstad, Wenche;Dřevojan, Pavel;Ecker, Klaus;Essl, Franz;Etzold, Jonathan;Filibeck, Goffredo;Fjellstad, Wendy;Güler, Behlül;Hájek, Michal;Hepenstrick, Daniel;Hodgson, John G.;Honrado, João P.;Jägerbrand, Annika [anajad] (Jönköping University, JTH, Byggnadsteknik och belysningsvetenskap);Janišová, Monika;Jeanneret, Philippe;Kelemen, András;Kirschner, Philipp;Klichowska, Ewelina;Kolomiiets, Ganna;Kozub, Łukasz;Lepš, Jan;Lindborg, Regina;Löbel, Swantje;Lomba, Angela;Magnes, Martin;Mayrhofer, Helmut;Malicki, Marek;Mašić, Ermin;Meier, Eliane S.;Mirin, Denis;Molau, Ulf;Moysiyenko, Ivan;Naqinezhad, Alireza;Ninot, Josep M.;Nobis, Marcin;Pedersen, Christian;Pérez-Haase, Aaron;Peters, Jan;Pladevall-Izard, Eulàlia;Roleček, Jan;Ronkin, Vladimir;Savchenko, Galina;Shyriaieva, Dariia;Sickel, Hanne;Stevens, Carly;Świerszcz, Sebastian;Tölgyesi, Csaba;Tsarevskaya, Nadezda;Valkó, Orsolya;Van Mechelen, Carmen;Vashenyak, Iuliia;Vetaas, Ole Reidar;Vynokurov, Denys;Waldén, Emelie;Widmer, Stefan;Wolfrum, Sebastian;Wróbel, Anna;Zlotnikova, Ekaterina;Dengler, Jürge
Benchmarking plant diversity of Paleartic grasslands and other open habitats
No full textCEABN/CIBIO - Vasco Silva (co-autor)Aims: Understanding fine-grain
diversity patterns across large spatial extents is
fundamental for macroecological research and biodiversity conservation. Using
the GrassPlot database, we provide benchmarks of fine-grain
richness values of
Palaearctic open habitats for vascular plants, bryophytes, lichens and complete vegetation
(i.e., the sum of the former three groups).
Location: Palaearctic biogeographic realm.
Methods: We used 126,524 plots of eight standard grain sizes from the GrassPlot
database: 0.0001, 0.001, 0.01, 0.1, 1, 10, 100 and 1,000 m2 and calculated the mean
richness and standard deviations, as well as maximum, minimum, median, and first
and third quartiles for each combination of grain size, taxonomic group, biome, region,
vegetation type and phytosociological class.
Results: Patterns of plant diversity in vegetation types and biomes differ across grain
sizes and taxonomic groups. Overall, secondary (mostly semi-natural)
grasslands and
natural grasslands are the richest vegetation type. The open-access
file ”GrassPlot
Diversity Benchmarks” and the web tool “GrassPlot Diversity Explorer” are now
available online (https://edgg.org/datab ases/Grass landD ivers ityEx plorer) and provide
more insights into species richness patterns in the Palaearctic open habitats.
Conclusions: The GrassPlot Diversity Benchmarks provide high-quality
data on species
richness in open habitat types across the Palaearctic. These benchmark data
can be used in vegetation ecology, macroecology, biodiversity conservation and data
quality checking. While the amount of data in the underlying GrassPlot database and their spatial coverage are smaller than in other extensive vegetation-plot
databases,
species recordings in GrassPlot are on average more complete, making it a valuable
complementary data source in macroecologyinfo:eu-repo/semantics/publishedVersio
ReSurveyEurope : A database of resurveyed vegetation plots in Europe
No full textAbstract
Aims
We introduce ReSurveyEurope — a new data source of resurveyed vegetation plots in Europe, compiled by a collaborative network of vegetation scientists. We describe the scope of this initiative, provide an overview of currently available data, governance, data contribution rules, and accessibility. In addition, we outline further steps, including potential research questions.
Results
ReSurveyEurope includes resurveyed vegetation plots from all habitats. Version 1.0 of ReSurveyEurope contains 283,135 observations (i.e., individual surveys of each plot) from 79,190 plots sampled in 449 independent resurvey projects. Of these, 62,139 (78%) are permanent plots, that is, marked in situ, or located with GPS, which allow for high spatial accuracy in resurvey. The remaining 17,051 (22%) plots are from studies in which plots from the initial survey could not be exactly relocated. Four data sets, which together account for 28,470 (36%) plots, provide only presence/absence information on plant species, while the remaining 50,720 (64%) plots contain abundance information (e.g., percentage cover or cover–abundance classes such as variants of the Braun‐Blanquet scale). The oldest plots were sampled in 1911 in the Swiss Alps, while most plots were sampled between 1950 and 2020.
Conclusions
ReSurveyEurope is a new resource to address a wide range of research questions on fine‐scale changes in European vegetation. The initiative is devoted to an inclusive and transparent governance and data usage approach, based on slightly adapted rules of the well‐established European Vegetation Archive (EVA). ReSurveyEurope data are ready for use, and proposals for analyses of the data set can be submitted at any time to the coordinators. Still, further data contributions are highly welcome
The biogeography of alien plant invasions in the Mediterranean Basin
No full textAbstract Aims Humans have deeply eroded biogeographic barriers, causing a rapid spread of alien species across biomes. The Mediterranean Basin is a biodiversity hotspot but is also known as a hub of alien plant invasions, particularly in its European part. Yet, a comprehensive inventory of alien species in the area is missing and understanding of the drivers of Mediterranean invasions is poor. Here, we aim to identify the main alien plant species in the European part of the Mediterranean Basin and quantify their invasion success in order to understand the plant species flows from other biomes of the world. Location The Mediterranean region of Europe, Anatolia and Cyprus. Methods We analyzed 130,000 georeferenced vegetation plots from the European Vegetation Archive (EVA) and identified 299 extra‐European alien plant species. We identified their biomes of origin and quantified the mean geographic distance, trade exchange and climatic similarity from each biome to the study area. After estimating the invasion success of each species in the study area, we tested which biomes have donated more alien species than expected by chance and which drivers best explain these non‐random patterns. Results We found that other Mediterranean climatic regions, as well as temperate and xeric biomes of the world, are the main donors of successful alien species to Mediterranean Europe, beyond what would be expected by chance. Our results suggest that climatic matching, rather than geographic proximity or trade, has been the most important driver of invasion. However, climatic pre‐adaptation alone also does not appear to predict the invasion success of established species in the study area. Conclusions Our results highlight the need to pay special attention to alien plant species from the same or climatically similar biomes, but also suggest that further research is needed for early screening of the most problematic alien species.Grantová Agentura České Republiky https://doi.org/10.13039/50110000182
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
- …
