Patterns and mechanisms underlying ecoregion delineation in North American freshwater plants
Abstract Aim The regionalized patterns of biodiversity distributions are actively studied in terrestrial and marine ecosystems, but much less is known on the geographical patterns of ecoregions founded on freshwater taxa. Here, we studied, for the first time, how well existing freshwater ecoregions...
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crwiley:10.1111/jbi.14289 2024-09-09T19:43:28+00:00 Patterns and mechanisms underlying ecoregion delineation in North American freshwater plants Alahuhta, Janne García‐Girón, Jorge Academy of Finland 2021 http://dx.doi.org/10.1111/jbi.14289 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.14289 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jbi.14289 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Biogeography volume 49, issue 1, page 142-155 ISSN 0305-0270 1365-2699 journal-article 2021 crwiley https://doi.org/10.1111/jbi.14289 2024-06-18T04:16:46Z Abstract Aim The regionalized patterns of biodiversity distributions are actively studied in terrestrial and marine ecosystems, but much less is known on the geographical patterns of ecoregions founded on freshwater taxa. Here, we studied, for the first time, how well existing freshwater ecoregions describe the geographical distribution of inland water plants. Location Greenland, continental Canada and USA. Taxon Freshwater vascular plants of all taxa and multiple functional groups (i.e. growth forms). Methods Using newly available fine‐grained data on freshwater plant distributions, we studied how ecoregions founded on fish are suitable for freshwater plant regionalization across North America. Specifically, we calculated internal homogeneity and distinctness among neighbouring ecoregions in relation to species replacements and richness differences. We also explored how a complex suite of ecogeographical characteristics affect ecoregion delineation of freshwater plants using spatially explicit regression routines. Results We found a clear geographical patterning of ecoregion robustness for North American freshwater plants, with communities being more internally homogeneous and more similar to one another in Polar and Subtropical inland waters. The degree of internal homogeneity and ecoregion distinctness were almost equally driven by species replacements and richness differences. Considering different life‐forms, ecoregion delineation performed best for emergent and floating‐leaved plants. Finally, within‐ecoregion homogeneity and distinctness were best explained by annual mean temperature and terrain ruggedness, respectively, with mean water alkalinity, ecoregion area and late Quaternary glacial legacies having supplementary effects. Main conclusions Our findings suggest that selection through climate filtering (e.g. mean annual temperature) is likely the main mechanistic driver of freshwater plant ecoregions. Geographical regionalizations founded on a particular organismal group may not be directly applicable ... Article in Journal/Newspaper Greenland Wiley Online Library Canada Greenland Journal of Biogeography 49 1 142 155 |
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Wiley Online Library |
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English |
description |
Abstract Aim The regionalized patterns of biodiversity distributions are actively studied in terrestrial and marine ecosystems, but much less is known on the geographical patterns of ecoregions founded on freshwater taxa. Here, we studied, for the first time, how well existing freshwater ecoregions describe the geographical distribution of inland water plants. Location Greenland, continental Canada and USA. Taxon Freshwater vascular plants of all taxa and multiple functional groups (i.e. growth forms). Methods Using newly available fine‐grained data on freshwater plant distributions, we studied how ecoregions founded on fish are suitable for freshwater plant regionalization across North America. Specifically, we calculated internal homogeneity and distinctness among neighbouring ecoregions in relation to species replacements and richness differences. We also explored how a complex suite of ecogeographical characteristics affect ecoregion delineation of freshwater plants using spatially explicit regression routines. Results We found a clear geographical patterning of ecoregion robustness for North American freshwater plants, with communities being more internally homogeneous and more similar to one another in Polar and Subtropical inland waters. The degree of internal homogeneity and ecoregion distinctness were almost equally driven by species replacements and richness differences. Considering different life‐forms, ecoregion delineation performed best for emergent and floating‐leaved plants. Finally, within‐ecoregion homogeneity and distinctness were best explained by annual mean temperature and terrain ruggedness, respectively, with mean water alkalinity, ecoregion area and late Quaternary glacial legacies having supplementary effects. Main conclusions Our findings suggest that selection through climate filtering (e.g. mean annual temperature) is likely the main mechanistic driver of freshwater plant ecoregions. Geographical regionalizations founded on a particular organismal group may not be directly applicable ... |
author2 |
Academy of Finland |
format |
Article in Journal/Newspaper |
author |
Alahuhta, Janne García‐Girón, Jorge |
spellingShingle |
Alahuhta, Janne García‐Girón, Jorge Patterns and mechanisms underlying ecoregion delineation in North American freshwater plants |
author_facet |
Alahuhta, Janne García‐Girón, Jorge |
author_sort |
Alahuhta, Janne |
title |
Patterns and mechanisms underlying ecoregion delineation in North American freshwater plants |
title_short |
Patterns and mechanisms underlying ecoregion delineation in North American freshwater plants |
title_full |
Patterns and mechanisms underlying ecoregion delineation in North American freshwater plants |
title_fullStr |
Patterns and mechanisms underlying ecoregion delineation in North American freshwater plants |
title_full_unstemmed |
Patterns and mechanisms underlying ecoregion delineation in North American freshwater plants |
title_sort |
patterns and mechanisms underlying ecoregion delineation in north american freshwater plants |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1111/jbi.14289 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.14289 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jbi.14289 |
geographic |
Canada Greenland |
geographic_facet |
Canada Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Journal of Biogeography volume 49, issue 1, page 142-155 ISSN 0305-0270 1365-2699 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jbi.14289 |
container_title |
Journal of Biogeography |
container_volume |
49 |
container_issue |
1 |
container_start_page |
142 |
op_container_end_page |
155 |
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1809912883784450048 |