Ecosystem functional types of the circumpolar Arctic tundra based on the seasonal dynamics of vegetation productivity
Abstract Biodiversity, when viewed through the combined lenses of compositional, structural, and functional attributes, provides for a holistic understanding of the complexities found within community assemblages and ecosystems. However, advancement in our understanding of how ecosystem functional d...
Published in: | Environmental Research: Ecology |
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Online Access: | http://dx.doi.org/10.1088/2752-664x/ad4beb https://iopscience.iop.org/article/10.1088/2752-664X/ad4beb https://iopscience.iop.org/article/10.1088/2752-664X/ad4beb/pdf |
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crioppubl:10.1088/2752-664x/ad4beb 2024-06-23T07:49:35+00:00 Ecosystem functional types of the circumpolar Arctic tundra based on the seasonal dynamics of vegetation productivity Armstrong, Amanda Alcaraz-Segura, Domingo Raynolds, Martha Epstein, Howard NASA Biodiversity and Ecological Forecasting 2024 http://dx.doi.org/10.1088/2752-664x/ad4beb https://iopscience.iop.org/article/10.1088/2752-664X/ad4beb https://iopscience.iop.org/article/10.1088/2752-664X/ad4beb/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining Environmental Research: Ecology volume 3, issue 2, page 025003 ISSN 2752-664X journal-article 2024 crioppubl https://doi.org/10.1088/2752-664x/ad4beb 2024-06-10T04:11:01Z Abstract Biodiversity, when viewed through the combined lenses of compositional, structural, and functional attributes, provides for a holistic understanding of the complexities found within community assemblages and ecosystems. However, advancement in our understanding of how ecosystem functional diversity interacts with structural and compositional diversity metrics is lacking, in part because universally applied methodologies to derive ecosystem functional classifications are still under development and vary widely across scales, extents and biomes. This study presents a methodology to construct ecosystem functional types (EFTs), or areas of the land surface that function similarly, using the MODIS NDVI record, for the terrestrial circumpolar Arctic. EFTs were derived from the seasonal dynamics of NDVI, over the Arctic tundra at 250 m resolution and compared to bioclimate subzones and to structurally and compositionally defined vegetation units of the Circumpolar Arctic Vegetation Map (CAVM). Correspondence analyses of CAVM EFTs to previously delineated CAVM bioclimatic subzones, physiognomic (vegetation) units and floristic provinces revealed a general congruence, indicating convergence across composition, structure, and function; yet also demonstrated substantial functional variability even within bioclimate subzones and vegetation units. Strong latitudinal gradients in ecosystem function are present, with EFT richness ranging from low (34) in northernmost regions to high (45) in southernmost regions. Locally, the mountainous regions of northern Alaska, and eastern and western Siberia had high spatial variability in ecosystem functioning. Aside from these generalities, we found that EFTs varied widely within individual mapped vegetation units, successfully capturing the functional dimension of biodiversity across the circumpolar Arctic tundra. Article in Journal/Newspaper Arctic Tundra Alaska Siberia IOP Publishing Arctic Environmental Research: Ecology 3 2 025003 |
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Abstract Biodiversity, when viewed through the combined lenses of compositional, structural, and functional attributes, provides for a holistic understanding of the complexities found within community assemblages and ecosystems. However, advancement in our understanding of how ecosystem functional diversity interacts with structural and compositional diversity metrics is lacking, in part because universally applied methodologies to derive ecosystem functional classifications are still under development and vary widely across scales, extents and biomes. This study presents a methodology to construct ecosystem functional types (EFTs), or areas of the land surface that function similarly, using the MODIS NDVI record, for the terrestrial circumpolar Arctic. EFTs were derived from the seasonal dynamics of NDVI, over the Arctic tundra at 250 m resolution and compared to bioclimate subzones and to structurally and compositionally defined vegetation units of the Circumpolar Arctic Vegetation Map (CAVM). Correspondence analyses of CAVM EFTs to previously delineated CAVM bioclimatic subzones, physiognomic (vegetation) units and floristic provinces revealed a general congruence, indicating convergence across composition, structure, and function; yet also demonstrated substantial functional variability even within bioclimate subzones and vegetation units. Strong latitudinal gradients in ecosystem function are present, with EFT richness ranging from low (34) in northernmost regions to high (45) in southernmost regions. Locally, the mountainous regions of northern Alaska, and eastern and western Siberia had high spatial variability in ecosystem functioning. Aside from these generalities, we found that EFTs varied widely within individual mapped vegetation units, successfully capturing the functional dimension of biodiversity across the circumpolar Arctic tundra. |
author2 |
NASA Biodiversity and Ecological Forecasting |
format |
Article in Journal/Newspaper |
author |
Armstrong, Amanda Alcaraz-Segura, Domingo Raynolds, Martha Epstein, Howard |
spellingShingle |
Armstrong, Amanda Alcaraz-Segura, Domingo Raynolds, Martha Epstein, Howard Ecosystem functional types of the circumpolar Arctic tundra based on the seasonal dynamics of vegetation productivity |
author_facet |
Armstrong, Amanda Alcaraz-Segura, Domingo Raynolds, Martha Epstein, Howard |
author_sort |
Armstrong, Amanda |
title |
Ecosystem functional types of the circumpolar Arctic tundra based on the seasonal dynamics of vegetation productivity |
title_short |
Ecosystem functional types of the circumpolar Arctic tundra based on the seasonal dynamics of vegetation productivity |
title_full |
Ecosystem functional types of the circumpolar Arctic tundra based on the seasonal dynamics of vegetation productivity |
title_fullStr |
Ecosystem functional types of the circumpolar Arctic tundra based on the seasonal dynamics of vegetation productivity |
title_full_unstemmed |
Ecosystem functional types of the circumpolar Arctic tundra based on the seasonal dynamics of vegetation productivity |
title_sort |
ecosystem functional types of the circumpolar arctic tundra based on the seasonal dynamics of vegetation productivity |
publisher |
IOP Publishing |
publishDate |
2024 |
url |
http://dx.doi.org/10.1088/2752-664x/ad4beb https://iopscience.iop.org/article/10.1088/2752-664X/ad4beb https://iopscience.iop.org/article/10.1088/2752-664X/ad4beb/pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Tundra Alaska Siberia |
genre_facet |
Arctic Tundra Alaska Siberia |
op_source |
Environmental Research: Ecology volume 3, issue 2, page 025003 ISSN 2752-664X |
op_rights |
http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/2752-664x/ad4beb |
container_title |
Environmental Research: Ecology |
container_volume |
3 |
container_issue |
2 |
container_start_page |
025003 |
_version_ |
1802640064217350144 |