Roost selection of the endangered Spotted Greenshank (Tringa guttifer) in critical habitat in the Inner Gulf of Thailand
Background: Roost-site quality can significantly affect the individual fitness of shorebirds, but roost sites remain poorly described for many threatened species on the East Asian–Australasian Flyway. We studied roost-site selection of the globally endangered Spotted Greenshank (Tringa guttifer) in...
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creator | Chenxing Yu Dusit Ngoprasert Philip D. Round Andrew J. Pierce Tommaso Savini George A. Gale |
description | Background: Roost-site quality can significantly affect the individual fitness of shorebirds, but roost sites remain poorly described for many threatened species on the East Asian–Australasian Flyway. We studied roost-site selection of the globally endangered Spotted Greenshank (Tringa guttifer) in the Inner Gulf of Thailand, an area which supports approximately 24% of their global wintering population, during two non-breeding seasons (October 2014–May 2015 and December 2015–February 2016). Methods: We measured nine variables associated with roost site characteristics including water depth, indicators of disturbance/predation risk, and associations with other shorebird species. We predicted that roost ponds with shallow water in proximity to foraging sites would receive higher usage than those further away. Results: A total of 94 sites were measured of which 46 were used for roosts with 23 used repeatedly. All used sites were human-modified ponds, of which 44 were used for salt farming and two used for aquaculture. Roosts were on average 1.10 ± 0.78 (SE) km from foraging sites and 5.8 ± 2.4 cm deep. The most supported model indicated that roost sites were negatively associated with distance to foraging sites and positively associated with the presence of Grey Plover (Pluvialis squatarola) and water depth. Conclusions: Traditional saltpans and other artificial wetlands near (< 1 km) mudflats serve as the primary high-tide roost habitat in the Inner Gulf of Thailand for this Spotted Greenshank population and perhaps seven other globally threatened or near-threatened species. Critically, all observed roost sites are on private land with no formal protection and thus will require creative public–private partnerships to manage sustainably. |
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Round ; Andrew J. Pierce ; Tommaso Savini ; George A. Gale</creator><creatorcontrib>Chenxing Yu ; Dusit Ngoprasert ; Philip D. Round ; Andrew J. Pierce ; Tommaso Savini ; George A. Gale</creatorcontrib><description>Background: Roost-site quality can significantly affect the individual fitness of shorebirds, but roost sites remain poorly described for many threatened species on the East Asian–Australasian Flyway. We studied roost-site selection of the globally endangered Spotted Greenshank (Tringa guttifer) in the Inner Gulf of Thailand, an area which supports approximately 24% of their global wintering population, during two non-breeding seasons (October 2014–May 2015 and December 2015–February 2016). Methods: We measured nine variables associated with roost site characteristics including water depth, indicators of disturbance/predation risk, and associations with other shorebird species. We predicted that roost ponds with shallow water in proximity to foraging sites would receive higher usage than those further away. Results: A total of 94 sites were measured of which 46 were used for roosts with 23 used repeatedly. All used sites were human-modified ponds, of which 44 were used for salt farming and two used for aquaculture. Roosts were on average 1.10 ± 0.78 (SE) km from foraging sites and 5.8 ± 2.4 cm deep. The most supported model indicated that roost sites were negatively associated with distance to foraging sites and positively associated with the presence of Grey Plover (Pluvialis squatarola) and water depth. Conclusions: Traditional saltpans and other artificial wetlands near (< 1 km) mudflats serve as the primary high-tide roost habitat in the Inner Gulf of Thailand for this Spotted Greenshank population and perhaps seven other globally threatened or near-threatened species. Critically, all observed roost sites are on private land with no formal protection and thus will require creative public–private partnerships to manage sustainably.</description><identifier>ISSN: 1674-7674</identifier><language>eng</language><publisher>Conservation Ecology Program, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand%Department of Biology, Mahidol University, Rama 6 Road, Bangkok 10400, Thailand</publisher><ispartof>鸟类学研究(英文版), 2019, Vol.10 (2), p.199-208</ispartof><rights>Copyright © Wanfang Data Co. Ltd. All Rights Reserved.</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://www.wanfangdata.com.cn/images/PeriodicalImages/zgnl/zgnl.jpg</thumbnail><link.rule.ids>314,780,784,4022</link.rule.ids></links><search><creatorcontrib>Chenxing Yu</creatorcontrib><creatorcontrib>Dusit Ngoprasert</creatorcontrib><creatorcontrib>Philip D. Round</creatorcontrib><creatorcontrib>Andrew J. Pierce</creatorcontrib><creatorcontrib>Tommaso Savini</creatorcontrib><creatorcontrib>George A. Gale</creatorcontrib><title>Roost selection of the endangered Spotted Greenshank (Tringa guttifer) in critical habitat in the Inner Gulf of Thailand</title><title>鸟类学研究(英文版)</title><description>Background: Roost-site quality can significantly affect the individual fitness of shorebirds, but roost sites remain poorly described for many threatened species on the East Asian–Australasian Flyway. We studied roost-site selection of the globally endangered Spotted Greenshank (Tringa guttifer) in the Inner Gulf of Thailand, an area which supports approximately 24% of their global wintering population, during two non-breeding seasons (October 2014–May 2015 and December 2015–February 2016). Methods: We measured nine variables associated with roost site characteristics including water depth, indicators of disturbance/predation risk, and associations with other shorebird species. We predicted that roost ponds with shallow water in proximity to foraging sites would receive higher usage than those further away. Results: A total of 94 sites were measured of which 46 were used for roosts with 23 used repeatedly. All used sites were human-modified ponds, of which 44 were used for salt farming and two used for aquaculture. Roosts were on average 1.10 ± 0.78 (SE) km from foraging sites and 5.8 ± 2.4 cm deep. The most supported model indicated that roost sites were negatively associated with distance to foraging sites and positively associated with the presence of Grey Plover (Pluvialis squatarola) and water depth. Conclusions: Traditional saltpans and other artificial wetlands near (< 1 km) mudflats serve as the primary high-tide roost habitat in the Inner Gulf of Thailand for this Spotted Greenshank population and perhaps seven other globally threatened or near-threatened species. Critically, all observed roost sites are on private land with no formal protection and thus will require creative public–private partnerships to manage sustainably.</description><issn>1674-7674</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqNTUFqwzAQ1CGFhDZ_2EsgOQRkt7HxubRpr63vZmOvZCViVaQ1KX19ZcgDMocZmBlmFmpVVPXLvs60VOuUzjqjKoqqOqzU71cISSCRp15cYAgGZCQgHpAtRRrg-yeIZD1GIk4j8gW2bXRsEewk4gzFHTiGPjpxPXoY8eQEZfbmqU9minCcvJnH2xGdRx6e1INBn2h900e1eX9rXz_2V2STr7tzmCLnpPuz7EtdNLrUunm-t_cPfYBO1Q</recordid><startdate>2019</startdate><enddate>2019</enddate><creator>Chenxing Yu</creator><creator>Dusit Ngoprasert</creator><creator>Philip D. Round</creator><creator>Andrew J. Pierce</creator><creator>Tommaso Savini</creator><creator>George A. Gale</creator><general>Conservation Ecology Program, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand%Department of Biology, Mahidol University, Rama 6 Road, Bangkok 10400, Thailand</general><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>2019</creationdate><title>Roost selection of the endangered Spotted Greenshank (Tringa guttifer) in critical habitat in the Inner Gulf of Thailand</title><author>Chenxing Yu ; Dusit Ngoprasert ; Philip D. Round ; Andrew J. Pierce ; Tommaso Savini ; George A. Gale</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-wanfang_journals_zgnl2019020093</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Chenxing Yu</creatorcontrib><creatorcontrib>Dusit Ngoprasert</creatorcontrib><creatorcontrib>Philip D. Round</creatorcontrib><creatorcontrib>Andrew J. Pierce</creatorcontrib><creatorcontrib>Tommaso Savini</creatorcontrib><creatorcontrib>George A. Gale</creatorcontrib><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>鸟类学研究(英文版)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chenxing Yu</au><au>Dusit Ngoprasert</au><au>Philip D. Round</au><au>Andrew J. Pierce</au><au>Tommaso Savini</au><au>George A. Gale</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Roost selection of the endangered Spotted Greenshank (Tringa guttifer) in critical habitat in the Inner Gulf of Thailand</atitle><jtitle>鸟类学研究(英文版)</jtitle><date>2019</date><risdate>2019</risdate><volume>10</volume><issue>2</issue><spage>199</spage><epage>208</epage><pages>199-208</pages><issn>1674-7674</issn><abstract>Background: Roost-site quality can significantly affect the individual fitness of shorebirds, but roost sites remain poorly described for many threatened species on the East Asian–Australasian Flyway. We studied roost-site selection of the globally endangered Spotted Greenshank (Tringa guttifer) in the Inner Gulf of Thailand, an area which supports approximately 24% of their global wintering population, during two non-breeding seasons (October 2014–May 2015 and December 2015–February 2016). Methods: We measured nine variables associated with roost site characteristics including water depth, indicators of disturbance/predation risk, and associations with other shorebird species. We predicted that roost ponds with shallow water in proximity to foraging sites would receive higher usage than those further away. Results: A total of 94 sites were measured of which 46 were used for roosts with 23 used repeatedly. All used sites were human-modified ponds, of which 44 were used for salt farming and two used for aquaculture. Roosts were on average 1.10 ± 0.78 (SE) km from foraging sites and 5.8 ± 2.4 cm deep. The most supported model indicated that roost sites were negatively associated with distance to foraging sites and positively associated with the presence of Grey Plover (Pluvialis squatarola) and water depth. Conclusions: Traditional saltpans and other artificial wetlands near (< 1 km) mudflats serve as the primary high-tide roost habitat in the Inner Gulf of Thailand for this Spotted Greenshank population and perhaps seven other globally threatened or near-threatened species. Critically, all observed roost sites are on private land with no formal protection and thus will require creative public–private partnerships to manage sustainably.</abstract><pub>Conservation Ecology Program, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand%Department of Biology, Mahidol University, Rama 6 Road, Bangkok 10400, Thailand</pub></addata></record> |
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title | Roost selection of the endangered Spotted Greenshank (Tringa guttifer) in critical habitat in the Inner Gulf of Thailand |
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