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Determinants of fin...
Determinants of fine-scale plant diversity in dry calcareous grasslands within the Baltic Sea region
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- Reitalu, Triin (författare)
- Institute of Geology, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia
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- Helm, Aveliina (författare)
- Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu,
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- Paertel, Meelis (författare)
- Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu,
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- Bengtsson, Karin (författare)
- Högskolan på Gotland
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- Gerhold, Pille (författare)
- Department of Experimental Plant Ecology, Institute for Water and Wetland Research, Radboud University Nijmegen
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- Rosén, Ejvind (författare)
- Uppsala universitet, Växtekologi och evolution
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- Takkis, Krista (författare)
- Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu
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- Znamenskiy, Sergey (författare)
- Institute of Biology, Karelian Research Centre RAS
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- Prentice, Honor C (författare)
- Lund University,Lunds universitet,Biodiversitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Biodiversity,Department of Biology,Faculty of Science,Department of Biology, Lund University
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(creator_code:org_t)
- Elsevier BV, 2014
- 2014
- Engelska.
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Ingår i: Agriculture, Ecosystems & Environment. - : Elsevier BV. - 1873-2305 .- 0167-8809. ; 182, s. 59-68
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- We used an extensive dataset (1220 vegetation plots of 1 m(2)) to study vegetation gradients and fine-scale plant diversity in dry calcareous grasslands (including alvar grasslands) in the Baltic Sea region. The study area covers the entire European distributional range of alvar habitats: Sweden (Oland, Gotland, Gotaland), Estonia (Saaremaa, Hiiumaa, north Estonia, west Estonia), and western Russia (Izhora, lzborsk). Fine-scale plant diversity was characterized by species richness and standardized phylogenetic diversity (comparing the observed mean pairwise phylogenetic distance (MPD) with MPD values from random communities). Ordination techniques (DCA) were used to characterize the main vegetation gradient. Variables describing local environment, climate, the biogeographic composition of the plant communities, and geographic location were related to fine-scale species richness and phylogenetic diversity using variation partitioning techniques and linear mixed models. The main vegetation gradient in the dry calcareous grasslands in the Baltic Sea region had a strong geographic component, was associated with soil depth, species' stress- and disturbance-tolerance and the age of the grassland habitat. Fine-scale phylogenetic diversity and species richness were negatively associated suggesting that these two diversity components are influenced by different sets of environmental and historical parameters. Fine-scale species richness was unimodally associated with the main vegetation gradient, and the highest levels of species richness were found under intermediate environmental (disturbance, light conditions and temperature) conditions where there was a mixture of species from different biogeographic regions. In contrast to species richness, fine-scale phylogenetic diversity was negatively associated with the main vegetation gradient. The highest phylogenetic diversity was found in the extremely thin-soiled alvar grasslands in Gotaland and on the Baltic islands (especially on Oland) where the high phylogenetic diversity is likely to be a reflection of a long history of continuous openness that has allowed time for the "collection" of phylogenetically different species within these unique habitats. (C) 2012 Elsevier B.V. All rights reserved.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Nyckelord
- Alvar
- Biogeographic
- Habitat history
- Immigration histories
- Phylogenetic clustering
- Species density
- Standardized effect size
- Alvar Biogeographic Habitat history Immigration histories Phylogenetic clustering Species density Standardized effect size
- Ecological Botany
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Reitalu, Triin
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Helm, Aveliina
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Paertel, Meelis
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Bengtsson, Karin
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Gerhold, Pille
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Rosén, Ejvind
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Takkis, Krista
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Znamenskiy, Serg ...
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Prentice, Honor ...
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- NATURVETENSKAP
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och Biologi
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och Ekologi
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NATURVETENSKAP
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Agriculture, Eco ...
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Lunds universitet
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