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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ftunivoulu:oai:oulu.fi:nbnfi-fe2022122273345 2023-07-30T04:03:55+02:00 Patterns and mechanisms underlying ecoregion delineation in North American freshwater plants Alahuhta, J. (Janne) García-Girón, J. (Jorge) 2022 application/pdf http://urn.fi/urn:nbn:fi-fe2022122273345 eng eng John Wiley & Sons info:eu-repo/semantics/openAccess © 2021 John Wiley & Sons Ltd. This is the peer reviewed version of the following article: Alahuhta, J., & García-Girón, J. (2022). Patterns and mechanisms underlying ecoregion delineation in North American freshwater plants. Journal of Biogeography, 49, 142– 155, which has been published in final form at https://doi.org/10.1111/jbi.14289. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. North America aquatic macrophytes ecoregions hydrophytes inland waters regionalization info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion 2022 ftunivoulu 2023-07-08T20:00:35Z 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 ... Article in Journal/Newspaper Greenland Jultika - University of Oulu repository Canada Greenland |
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Jultika - University of Oulu repository |
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English |
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North America aquatic macrophytes ecoregions hydrophytes inland waters regionalization |
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North America aquatic macrophytes ecoregions hydrophytes inland waters regionalization Alahuhta, J. (Janne) García-Girón, J. (Jorge) Patterns and mechanisms underlying ecoregion delineation in North American freshwater plants |
topic_facet |
North America aquatic macrophytes ecoregions hydrophytes inland waters regionalization |
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 ... |
format |
Article in Journal/Newspaper |
author |
Alahuhta, J. (Janne) García-Girón, J. (Jorge) |
author_facet |
Alahuhta, J. (Janne) García-Girón, J. (Jorge) |
author_sort |
Alahuhta, J. (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 |
John Wiley & Sons |
publishDate |
2022 |
url |
http://urn.fi/urn:nbn:fi-fe2022122273345 |
geographic |
Canada Greenland |
geographic_facet |
Canada Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_rights |
info:eu-repo/semantics/openAccess © 2021 John Wiley & Sons Ltd. This is the peer reviewed version of the following article: Alahuhta, J., & García-Girón, J. (2022). Patterns and mechanisms underlying ecoregion delineation in North American freshwater plants. Journal of Biogeography, 49, 142– 155, which has been published in final form at https://doi.org/10.1111/jbi.14289. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. |
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1772815041832157184 |