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Auteur Tómas Grétar Gunnarsson |
Documents disponibles écrits par cet auteur (10)
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Article
Maite Cerezo-Araujo, Auteur ; José Augusto Alves, Auteur ; Verónica Méndez, Auteur ; Gunnar Thor Hallgrimsson, Auteur ; Tómas Grétar Gunnarsson, AuteurNumbers of adult Eurasian Whimbrels Numenius phaeopus declined steeply across Iceland’s largest lowland basin during 2012–2021, but the abundance of broods during 2013–2021 did not decline. Sites with more adults generally held more broods. Many[...]![]()
Article
Lilja Jóhannesdóttir, Auteur ; Jennifer A. Gill, Auteur ; José A. Alves, Auteur ; Tómas Grétar Gunnarsson, AuteurPopulations of many migratory wader species around the world are in serious decline, largely caused by anthropogenic activities. Throughout the developed world, agricultural expansion and intensification have been identified as among the main dr[...]![]()
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Böðvar Þórisson, Auteur ; Verónica Méndez, Auteur ; José A. Alves, Auteur ; Jennifer A. Gill, Auteur ; Kristinn H. Skarphéðinsson, Auteur ; Svenja N. V. Auhage, Auteur ; Sölvi R. Vignisson, Auteur ; Guðmundur Ö Benediktsson, Auteur ; Brynjúlfur Brynjólfsson, Auteur ; Cristian Gallo, Auteur ; Hafdís Sturlaugsdóttir, Auteur ; Páll Leifsson, Auteur ; Tómas Grétar Gunnarsson, AuteurCapsule: The first ever survey of Oystercatchers wintering in Iceland found around 11 000 individuals. This is an estimated 30% of the Icelandic population, including juveniles, suggesting that approximately 26 000 Icelandic Oystercatchers migra[...]![]()
Article
Tómas Grétar Gunnarsson, Auteur ; Lilja Jóhannesdóttir, Auteur ; José A. Alves, Auteur ; Böðvar Þórisson, Auteur ; Jennifer A. Gill, AuteurKey demographic parameters often show substantial annual variation that can have important consequences for rates of population growth. Since 2011 we have conducted annual estimates of the productivity of Icelandic Black-tailed Godwits Limosa li[...]![]()
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Helgi Guðjónsson, Auteur ; Jón Einar Jónsson, Auteur ; Halldór Walter Stefánsson, Auteur ; Aðalsteinn Örn Snæþórsson, Auteur ; Tómas Grétar Gunnarsson, AuteurCapsule Large-scale variation in breeding output of Greylag geese Anser anser is negligible across Iceland but detectable variation is likely related to spring temperature.Aims To identify large-scale spatial and annual variation in breeding par[...]![]()
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Helgi Gudjonsson, Auteur ; Jón Einar Jónsson, Auteur ; Halldór Walter Stefánsson, Auteur ; Adalsteinn Orn Snaethorsson, Auteur ; Tómas Grétar Gunnarsson, AuteurCapsule Large-scale variation in breeding output of Greylag geese Anser anser is negligible across Iceland but detectable variation is likely related to spring temperature. Aims To identify large-scale spatial and annual variation in breeding pa[...]![]()
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Lilja Jóhannesdóttir, Auteur ; Olafur Arnalds, Auteur ; Sigmundur Brink, Auteur ; Tómas Grétar Gunnarsson, AuteurCapsule Habitats in lowland South Iceland sustain bird populations of international importance, with highest densities in wet habitats. Aims In areas important for biodiversity there is an urgent need to assess large-scale variation in the biodi[...]![]()
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William J. Sutherland, Auteur ; José A. Alves, Auteur ; Tatsuya Amano, Auteur ; Charlotte H. Chang, Auteur ; Nicholas C. Davidson, Auteur ; C. Max Finlayson, Auteur ; Jennifer A. Gill, Auteur ; Robert E. Gill, Auteur ; Patricia M. González, Auteur ; Tómas Grétar Gunnarsson, Auteur ; David Kleijn, Auteur ; Chris J. Spray, Auteur ; Tamás Székely, Auteur ; Des B. A. Thompson, AuteurWe review the conservation issues facing migratory shorebird populations that breed in temperate regions and use wetlands in the non-breeding season. Shorebirds are excellent model organisms for understanding ecological, behavioural and evolutio[...]![]()
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Tómas Grétar Gunnarsson, Auteur ; Gudmundur A. Gudmundsson, AuteurFrom the initiation of bird ringing in Iceland in 1921 to 2014, a total of 6,077 Whimbrels Numenius phaeopus have been ringed there, mostly (95%) as unfledged chicks. Of those, 35 have been recovered or sighted outside Iceland and 22 recovered i[...]



