A Pleistocene disturbance event describes modern diversity patterns in tidal marsh birds
There is growing evidence to support that paleo‐timescale events are important determinants in the present‐day distribution of organisms. We explored the relationship between community composition of tidal marsh birds in the northeastern United States and potential drivers of biodiversity patterns a...
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Online Access: | http://dx.doi.org/10.1111/ecog.02937 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fecog.02937 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ecog.02937 |
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crwiley:10.1111/ecog.02937 2024-09-15T18:12:33+00:00 A Pleistocene disturbance event describes modern diversity patterns in tidal marsh birds Correll, Maureen D. Wiest, Whitney A. Hodgman, Thomas P. Kelley, Joseph T. Mcgill, Brian J. Elphick, Chris S. Shriver, W. Gregory Conway, Meaghan Field, Christopher R. Olsen, Brian J. National Science Foundation Integrated Graduate Education and Research Traineeship National Science Foundation RAPID grant United States Fish and Wildlife Service United States Dept of Agriculture 2017 http://dx.doi.org/10.1111/ecog.02937 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fecog.02937 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ecog.02937 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecography volume 41, issue 4, page 684-694 ISSN 0906-7590 1600-0587 journal-article 2017 crwiley https://doi.org/10.1111/ecog.02937 2024-07-25T04:21:48Z There is growing evidence to support that paleo‐timescale events are important determinants in the present‐day distribution of organisms. We explored the relationship between community composition of tidal marsh birds in the northeastern United States and potential drivers of biodiversity patterns across timescales to explore the relevance of historical contingency in this ecosystem. These potential predictors represent some of the major known influences on biodiversity in tidal marshes, including 1) a recent, intense hurricane event driving a large‐scale perturbation of this ecosystem (4 yr), 2) gradual modification of marshes through installation of human infrastructure (∼ 150 yr), and 3) marsh formation and development after the Last Glacial Maximum (LGM, ∼ 20 000 yr). We surveyed > 1300 locations in tidal marshes from 2011–2014 using passive point count methods to measure bird community composition at these points. We found that rarefied richness, total individuals (N), and total biomass were best explained by a quadratic relationship with marsh age peaking at 40° latitude, the location of the Last Glacial Maximum of the Laurentide ice sheet. We hypothesize that formation of marsh millennia earlier in the southern part of our survey area allowed for earlier evolution of specialization to tidal marsh by bird species than those occupying much younger, northern marshes, which could have then driven differential rates of colonization in the north (by habitat generalists) and competitive exclusion in the south (by habitat specialists). We tested this theory using a novel functional diversity metric (community habitat specialization index, or CHSI) and find that community specialization decreased linearly with marsh age, supporting our hypothesis. Our findings highlight the importance for consideration of historical contingency in biodiversity research and further exploration of mechanisms operating across geological timescales. Article in Journal/Newspaper Ice Sheet Wiley Online Library Ecography 41 4 684 694 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
There is growing evidence to support that paleo‐timescale events are important determinants in the present‐day distribution of organisms. We explored the relationship between community composition of tidal marsh birds in the northeastern United States and potential drivers of biodiversity patterns across timescales to explore the relevance of historical contingency in this ecosystem. These potential predictors represent some of the major known influences on biodiversity in tidal marshes, including 1) a recent, intense hurricane event driving a large‐scale perturbation of this ecosystem (4 yr), 2) gradual modification of marshes through installation of human infrastructure (∼ 150 yr), and 3) marsh formation and development after the Last Glacial Maximum (LGM, ∼ 20 000 yr). We surveyed > 1300 locations in tidal marshes from 2011–2014 using passive point count methods to measure bird community composition at these points. We found that rarefied richness, total individuals (N), and total biomass were best explained by a quadratic relationship with marsh age peaking at 40° latitude, the location of the Last Glacial Maximum of the Laurentide ice sheet. We hypothesize that formation of marsh millennia earlier in the southern part of our survey area allowed for earlier evolution of specialization to tidal marsh by bird species than those occupying much younger, northern marshes, which could have then driven differential rates of colonization in the north (by habitat generalists) and competitive exclusion in the south (by habitat specialists). We tested this theory using a novel functional diversity metric (community habitat specialization index, or CHSI) and find that community specialization decreased linearly with marsh age, supporting our hypothesis. Our findings highlight the importance for consideration of historical contingency in biodiversity research and further exploration of mechanisms operating across geological timescales. |
author2 |
National Science Foundation Integrated Graduate Education and Research Traineeship National Science Foundation RAPID grant United States Fish and Wildlife Service United States Dept of Agriculture |
format |
Article in Journal/Newspaper |
author |
Correll, Maureen D. Wiest, Whitney A. Hodgman, Thomas P. Kelley, Joseph T. Mcgill, Brian J. Elphick, Chris S. Shriver, W. Gregory Conway, Meaghan Field, Christopher R. Olsen, Brian J. |
spellingShingle |
Correll, Maureen D. Wiest, Whitney A. Hodgman, Thomas P. Kelley, Joseph T. Mcgill, Brian J. Elphick, Chris S. Shriver, W. Gregory Conway, Meaghan Field, Christopher R. Olsen, Brian J. A Pleistocene disturbance event describes modern diversity patterns in tidal marsh birds |
author_facet |
Correll, Maureen D. Wiest, Whitney A. Hodgman, Thomas P. Kelley, Joseph T. Mcgill, Brian J. Elphick, Chris S. Shriver, W. Gregory Conway, Meaghan Field, Christopher R. Olsen, Brian J. |
author_sort |
Correll, Maureen D. |
title |
A Pleistocene disturbance event describes modern diversity patterns in tidal marsh birds |
title_short |
A Pleistocene disturbance event describes modern diversity patterns in tidal marsh birds |
title_full |
A Pleistocene disturbance event describes modern diversity patterns in tidal marsh birds |
title_fullStr |
A Pleistocene disturbance event describes modern diversity patterns in tidal marsh birds |
title_full_unstemmed |
A Pleistocene disturbance event describes modern diversity patterns in tidal marsh birds |
title_sort |
pleistocene disturbance event describes modern diversity patterns in tidal marsh birds |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1111/ecog.02937 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fecog.02937 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ecog.02937 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Ecography volume 41, issue 4, page 684-694 ISSN 0906-7590 1600-0587 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/ecog.02937 |
container_title |
Ecography |
container_volume |
41 |
container_issue |
4 |
container_start_page |
684 |
op_container_end_page |
694 |
_version_ |
1810450132072660992 |