New insights into island vegetation composition and species diversity-Consistent and conditional responses across contrasting insular habitats at the plot-scale
Most island-ecology studies focus on the properties of entire island communities, thus neglecting species-environment relationships operating at the habitat-level. Habitat-specific variation in the strength and sign of these relationships will conceal patterns observed on the island scale and may pr...
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| Veröffentlicht in: | PloS one 2018-07, Vol.13 (7), p.e0200191-e0200191 |
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| creator | Hattermann, Dirk Bernhardt-Römermann, Markus Otte, Annette Eckstein, Rolf Lutz |
| description | Most island-ecology studies focus on the properties of entire island communities, thus neglecting species-environment relationships operating at the habitat-level. Habitat-specific variation in the strength and sign of these relationships will conceal patterns observed on the island scale and may preclude a mechanistic interpretation of patterns and processes. Habitat-specific species-environment relationships may also depend on the descriptor of ecological communities. This paper presents a comprehensive plot-based analysis of local vegetation composition and species diversity (species richness and species evenness) of (i) rocky shore, (ii) semi-natural grassland and (iii) coniferous forest habitats in three Baltic archipelagos in Sweden. To identify differences and consistencies between habitats and descriptors, we assessed the relative contributions of the variable-sets "region", "topography", "soil morphology", "soil fertility", "soil water", "light availability", "distance" and "island configuration" on local vegetation composition, species richness and species evenness. We quantified the impact of "management history" on the descriptors of local grassland communities by a newly introduced grazing history index (GHI). Unlike species diversity, changes in vegetation composition were related to most of the variable-sets. The relative contributions of the variable-sets were mostly habitat-specific and strongly contingent on the descriptor involved. Within each habitat, richness and evenness were only partly affected by the same variable-sets, and if so, their relative contribution varied between diversity proxies. Across all habitats, soil variable-sets showed highly consistent effects on vegetation composition and species diversity and contributed most to the variance explained. GHI was a powerful predictor, explaining high proportions of variation in all three descriptors of grassland species communities. The proportion of unexplained variance was habitat-specific, possibly reflecting a community maturity gradient. Our results reveal that species richness alone is an incomplete representation of local species diversity. Finally, we stress the need of including habitat-based approaches when analyzing complex species-environment relationships on islands. |
| doi_str_mv | 10.1371/journal.pone.0200191 |
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Habitat-specific variation in the strength and sign of these relationships will conceal patterns observed on the island scale and may preclude a mechanistic interpretation of patterns and processes. Habitat-specific species-environment relationships may also depend on the descriptor of ecological communities. This paper presents a comprehensive plot-based analysis of local vegetation composition and species diversity (species richness and species evenness) of (i) rocky shore, (ii) semi-natural grassland and (iii) coniferous forest habitats in three Baltic archipelagos in Sweden. To identify differences and consistencies between habitats and descriptors, we assessed the relative contributions of the variable-sets "region", "topography", "soil morphology", "soil fertility", "soil water", "light availability", "distance" and "island configuration" on local vegetation composition, species richness and species evenness. We quantified the impact of "management history" on the descriptors of local grassland communities by a newly introduced grazing history index (GHI). Unlike species diversity, changes in vegetation composition were related to most of the variable-sets. The relative contributions of the variable-sets were mostly habitat-specific and strongly contingent on the descriptor involved. Within each habitat, richness and evenness were only partly affected by the same variable-sets, and if so, their relative contribution varied between diversity proxies. Across all habitats, soil variable-sets showed highly consistent effects on vegetation composition and species diversity and contributed most to the variance explained. GHI was a powerful predictor, explaining high proportions of variation in all three descriptors of grassland species communities. The proportion of unexplained variance was habitat-specific, possibly reflecting a community maturity gradient. Our results reveal that species richness alone is an incomplete representation of local species diversity. Finally, we stress the need of including habitat-based approaches when analyzing complex species-environment relationships on islands.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0200191</identifier><identifier>PMID: 29979739</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Animal behavior ; Biodiversity ; Biologi ; Biology ; Biology and Life Sciences ; Climate change ; Community ecology ; Community relations ; Composition effects ; Coniferous forests ; DISTRIBUTION PATTERNS ; Earth Sciences ; Ecological monitoring ; Ecology ; Ecology and Environmental Sciences ; Ecosystem ; Ecosystems ; Environmental aspects ; Environmental conditions ; ENVIRONMENTAL-FACTORS ; FINNISH ARCHIPELAGO ; Flowers & plants ; Forests ; Grassland management ; Grasslands ; Habitats ; Islands ; LAND-USE ; Landscape ecology ; LANDSCAPE STRUCTURE ; LOCAL FACTORS ; MANAGEMENT ; Moisture content ; Morphology ; Plant communities ; PLANT DIVERSITY ; Plants ; RICHNESS ; Soil ; Soil fertility ; Soil morphology ; Soil water ; Species diversity ; Species richness ; Sweden ; Variance ; VASCULAR PLANTS ; Vegetation ; Vegetation effects</subject><ispartof>PloS one, 2018-07, Vol.13 (7), p.e0200191-e0200191</ispartof><rights>COPYRIGHT 2018 Public Library of Science</rights><rights>2018 Hattermann et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 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Habitat-specific variation in the strength and sign of these relationships will conceal patterns observed on the island scale and may preclude a mechanistic interpretation of patterns and processes. Habitat-specific species-environment relationships may also depend on the descriptor of ecological communities. This paper presents a comprehensive plot-based analysis of local vegetation composition and species diversity (species richness and species evenness) of (i) rocky shore, (ii) semi-natural grassland and (iii) coniferous forest habitats in three Baltic archipelagos in Sweden. To identify differences and consistencies between habitats and descriptors, we assessed the relative contributions of the variable-sets "region", "topography", "soil morphology", "soil fertility", "soil water", "light availability", "distance" and "island configuration" on local vegetation composition, species richness and species evenness. 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One</addtitle><date>2018-07-06</date><risdate>2018</risdate><volume>13</volume><issue>7</issue><spage>e0200191</spage><epage>e0200191</epage><pages>e0200191-e0200191</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Most island-ecology studies focus on the properties of entire island communities, thus neglecting species-environment relationships operating at the habitat-level. Habitat-specific variation in the strength and sign of these relationships will conceal patterns observed on the island scale and may preclude a mechanistic interpretation of patterns and processes. Habitat-specific species-environment relationships may also depend on the descriptor of ecological communities. This paper presents a comprehensive plot-based analysis of local vegetation composition and species diversity (species richness and species evenness) of (i) rocky shore, (ii) semi-natural grassland and (iii) coniferous forest habitats in three Baltic archipelagos in Sweden. To identify differences and consistencies between habitats and descriptors, we assessed the relative contributions of the variable-sets "region", "topography", "soil morphology", "soil fertility", "soil water", "light availability", "distance" and "island configuration" on local vegetation composition, species richness and species evenness. We quantified the impact of "management history" on the descriptors of local grassland communities by a newly introduced grazing history index (GHI). Unlike species diversity, changes in vegetation composition were related to most of the variable-sets. The relative contributions of the variable-sets were mostly habitat-specific and strongly contingent on the descriptor involved. Within each habitat, richness and evenness were only partly affected by the same variable-sets, and if so, their relative contribution varied between diversity proxies. Across all habitats, soil variable-sets showed highly consistent effects on vegetation composition and species diversity and contributed most to the variance explained. GHI was a powerful predictor, explaining high proportions of variation in all three descriptors of grassland species communities. The proportion of unexplained variance was habitat-specific, possibly reflecting a community maturity gradient. Our results reveal that species richness alone is an incomplete representation of local species diversity. Finally, we stress the need of including habitat-based approaches when analyzing complex species-environment relationships on islands.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>29979739</pmid><doi>10.1371/journal.pone.0200191</doi><orcidid>https://orcid.org/0000-0003-0026-5116</orcidid><oa>free_for_read</oa></addata></record> |
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| recordid | cdi_plos_journals_2065383902 |
| source | MEDLINE; DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; SWEPUB Freely available online; Public Library of Science (PLoS); PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | Animal behavior Biodiversity Biologi Biology Biology and Life Sciences Climate change Community ecology Community relations Composition effects Coniferous forests DISTRIBUTION PATTERNS Earth Sciences Ecological monitoring Ecology Ecology and Environmental Sciences Ecosystem Ecosystems Environmental aspects Environmental conditions ENVIRONMENTAL-FACTORS FINNISH ARCHIPELAGO Flowers & plants Forests Grassland management Grasslands Habitats Islands LAND-USE Landscape ecology LANDSCAPE STRUCTURE LOCAL FACTORS MANAGEMENT Moisture content Morphology Plant communities PLANT DIVERSITY Plants RICHNESS Soil Soil fertility Soil morphology Soil water Species diversity Species richness Sweden Variance VASCULAR PLANTS Vegetation Vegetation effects |
| title | New insights into island vegetation composition and species diversity-Consistent and conditional responses across contrasting insular habitats at the plot-scale |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-15T03%3A48%3A00IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=New%20insights%20into%20island%20vegetation%20composition%20and%20species%20diversity-Consistent%20and%20conditional%20responses%20across%20contrasting%20insular%20habitats%20at%20the%20plot-scale&rft.jtitle=PloS%20one&rft.au=Hattermann,%20Dirk&rft.date=2018-07-06&rft.volume=13&rft.issue=7&rft.spage=e0200191&rft.epage=e0200191&rft.pages=e0200191-e0200191&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0200191&rft_dat=%3Cgale_plos_%3EA545634659%3C/gale_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2065383902&rft_id=info:pmid/29979739&rft_galeid=A545634659&rft_doaj_id=oai_doaj_org_article_8de821032e754ca6aacbe0e850e6cfa8&rfr_iscdi=true |