Effects of drought on the abundance and distribution of non-breeding shorebirds in central California, USA
Conservation of migratory species requires anticipating the potential impacts of extreme climatic events, such as extreme drought. During drought, reduced habitat availability for shorebirds creates the potential for changes in their abundance and distribution, in part because many species are highl...
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description | Conservation of migratory species requires anticipating the potential impacts of extreme climatic events, such as extreme drought. During drought, reduced habitat availability for shorebirds creates the potential for changes in their abundance and distribution, in part because many species are highly mobile and rely on networks of interior and coastal habitats. Understanding how shorebirds responded to a recent drought cycle that peaked from 2013 to 2015 in central California, USA, will help optimize management of wetlands and fresh water for wildlife. In the Central Valley, a vast interior region that is characterized by a mosaic of wetlands and agricultural lands, we found 22% and 29% decreases in the annual abundance of shorebirds during periods of 3-year drought (2013-2015) and 2-year extreme drought (2014-2015), respectively, when compared to non-drought years. Lower abundance of shorebirds coincided with significant decreases in the mean proportion flooded of survey units (7% and 9%, respectively) that were reliant on fresh water. Drought was associated with lower abundance within both the interior Central Valley and coastal San Francisco Bay for greater and lesser yellowlegs (Tringa melanoleuca and T. flavipes) and long- and short-billed dowitchers (Limnodromus scolopaceus and L. griseus). Only dunlins (Calidris alpina) had patterns of abundance that suggested substantial shifts in distribution between the Central Valley and coastal regions of San Francisco Bay and Point Reyes. Our results indicate that drought has the potential to reduce, at least temporally, shorebird populations and flooded habitat in the Central Valley, and the ability to respond to drought by taking advantage of nearby coastal habitats may limit the long-term effects of drought on some species. Successful conservation strategies must balance the impacts of reduced habitat availability at interior sites with the ability of some migratory shorebirds to adapt rapidly to shifting distributions of resources. |
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During drought, reduced habitat availability for shorebirds creates the potential for changes in their abundance and distribution, in part because many species are highly mobile and rely on networks of interior and coastal habitats. Understanding how shorebirds responded to a recent drought cycle that peaked from 2013 to 2015 in central California, USA, will help optimize management of wetlands and fresh water for wildlife. In the Central Valley, a vast interior region that is characterized by a mosaic of wetlands and agricultural lands, we found 22% and 29% decreases in the annual abundance of shorebirds during periods of 3-year drought (2013-2015) and 2-year extreme drought (2014-2015), respectively, when compared to non-drought years. Lower abundance of shorebirds coincided with significant decreases in the mean proportion flooded of survey units (7% and 9%, respectively) that were reliant on fresh water. Drought was associated with lower abundance within both the interior Central Valley and coastal San Francisco Bay for greater and lesser yellowlegs (Tringa melanoleuca and T. flavipes) and long- and short-billed dowitchers (Limnodromus scolopaceus and L. griseus). Only dunlins (Calidris alpina) had patterns of abundance that suggested substantial shifts in distribution between the Central Valley and coastal regions of San Francisco Bay and Point Reyes. Our results indicate that drought has the potential to reduce, at least temporally, shorebird populations and flooded habitat in the Central Valley, and the ability to respond to drought by taking advantage of nearby coastal habitats may limit the long-term effects of drought on some species. Successful conservation strategies must balance the impacts of reduced habitat availability at interior sites with the ability of some migratory shorebirds to adapt rapidly to shifting distributions of resources.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0240931</identifier><identifier>PMID: 33085697</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Abundance ; Agricultural land ; Agricultural management ; Animal Migration ; Animals ; Aquatic birds ; Availability ; Biology and Life Sciences ; Bird migration ; Birds ; Breeding ; California ; Charadriiformes - growth & development ; Charadriiformes - physiology ; Climatic extremes ; Coastal ecology ; Coastal zone ; Coasts ; Conservation ; Conservation of Natural Resources - methods ; Distribution ; Drought ; Droughts ; Earth Sciences ; Ecology and Environmental Sciences ; Environmental aspects ; Environmental protection ; Extreme drought ; Extreme weather ; Floods ; Fresh water ; Freshwater resources ; Geographical distribution ; Habitat availability ; Habitats ; Long-term effects ; Migratory birds ; Migratory species ; People and places ; Precipitation ; Research and Analysis Methods ; Rice ; Seasons ; Shorebirds ; Surface water ; United States ; Valleys ; Water shortages ; Wetland agriculture ; Wetland management ; Wetlands ; Wildlife ; Wildlife conservation ; Wildlife habitats ; Wildlife management ; Wireless networks</subject><ispartof>PloS one, 2020-10, Vol.15 (10), p.e0240931-e0240931</ispartof><rights>COPYRIGHT 2020 Public Library of Science</rights><rights>This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. 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S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of drought on the abundance and distribution of non-breeding shorebirds in central California, USA</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2020-10-21</date><risdate>2020</risdate><volume>15</volume><issue>10</issue><spage>e0240931</spage><epage>e0240931</epage><pages>e0240931-e0240931</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Conservation of migratory species requires anticipating the potential impacts of extreme climatic events, such as extreme drought. During drought, reduced habitat availability for shorebirds creates the potential for changes in their abundance and distribution, in part because many species are highly mobile and rely on networks of interior and coastal habitats. Understanding how shorebirds responded to a recent drought cycle that peaked from 2013 to 2015 in central California, USA, will help optimize management of wetlands and fresh water for wildlife. In the Central Valley, a vast interior region that is characterized by a mosaic of wetlands and agricultural lands, we found 22% and 29% decreases in the annual abundance of shorebirds during periods of 3-year drought (2013-2015) and 2-year extreme drought (2014-2015), respectively, when compared to non-drought years. Lower abundance of shorebirds coincided with significant decreases in the mean proportion flooded of survey units (7% and 9%, respectively) that were reliant on fresh water. Drought was associated with lower abundance within both the interior Central Valley and coastal San Francisco Bay for greater and lesser yellowlegs (Tringa melanoleuca and T. flavipes) and long- and short-billed dowitchers (Limnodromus scolopaceus and L. griseus). Only dunlins (Calidris alpina) had patterns of abundance that suggested substantial shifts in distribution between the Central Valley and coastal regions of San Francisco Bay and Point Reyes. Our results indicate that drought has the potential to reduce, at least temporally, shorebird populations and flooded habitat in the Central Valley, and the ability to respond to drought by taking advantage of nearby coastal habitats may limit the long-term effects of drought on some species. Successful conservation strategies must balance the impacts of reduced habitat availability at interior sites with the ability of some migratory shorebirds to adapt rapidly to shifting distributions of resources.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>33085697</pmid><doi>10.1371/journal.pone.0240931</doi><tpages>e0240931</tpages><orcidid>https://orcid.org/0000-0002-5912-8768</orcidid><oa>free_for_read</oa></addata></record> |
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source | Public Library of Science (PLoS) Journals Open Access; MEDLINE; DOAJ Directory of Open Access Journals; PubMed Central; Free Full-Text Journals in Chemistry; EZB Electronic Journals Library |
subjects | Abundance Agricultural land Agricultural management Animal Migration Animals Aquatic birds Availability Biology and Life Sciences Bird migration Birds Breeding California Charadriiformes - growth & development Charadriiformes - physiology Climatic extremes Coastal ecology Coastal zone Coasts Conservation Conservation of Natural Resources - methods Distribution Drought Droughts Earth Sciences Ecology and Environmental Sciences Environmental aspects Environmental protection Extreme drought Extreme weather Floods Fresh water Freshwater resources Geographical distribution Habitat availability Habitats Long-term effects Migratory birds Migratory species People and places Precipitation Research and Analysis Methods Rice Seasons Shorebirds Surface water United States Valleys Water shortages Wetland agriculture Wetland management Wetlands Wildlife Wildlife conservation Wildlife habitats Wildlife management Wireless networks |
title | Effects of drought on the abundance and distribution of non-breeding shorebirds in central California, USA |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-27T20%3A36%3A05IST&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=Effects%20of%20drought%20on%20the%20abundance%20and%20distribution%20of%20non-breeding%20shorebirds%20in%20central%20California,%20USA&rft.jtitle=PloS%20one&rft.au=Barbaree,%20Blake%20A&rft.date=2020-10-21&rft.volume=15&rft.issue=10&rft.spage=e0240931&rft.epage=e0240931&rft.pages=e0240931-e0240931&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0240931&rft_dat=%3Cgale_plos_%3EA639052304%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=2452936505&rft_id=info:pmid/33085697&rft_galeid=A639052304&rft_doaj_id=oai_doaj_org_article_a92fb769536d44098de8c612a5e22190&rfr_iscdi=true |