Residency, recruitment, and stopover duration of hatch-year Roseate Terns (Sterna dougallii) during the premigratory staging period

Seabird demography and spatial distribution outside of the breeding season are poorly understood, and migratory stopover and staging sites represent important energetic bottlenecks during the avian annual cycle. We quantified hatch-year Roseate Tern (Sterna dougallii) weekly residency, weekly recrui...

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Autores principales:	Kayla L. Davis, Sarah M. Karpanty, Jeffrey A. Spendelow, Jonathan B. Cohen, Melissa A. Althouse, Katharine C. Parsons, Cristin F. Luttazi, Daniel H. Catlin, Daniel Gibson
Formato:	article
Lenguaje:	EN
Publicado:	Resilience Alliance 2019
Materias:	recruitment residency roseate tern staging <span style="font-style: normal">sterna dougallii</span> Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989
Acceso en línea:	https://doaj.org/article/8e4537ae62b54bbd81c0ce34ac4e381f
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spelling	oai:doaj.org-article:8e4537ae62b54bbd81c0ce34ac4e381f2021-12-02T12:13:26ZResidency, recruitment, and stopover duration of hatch-year Roseate Terns (Sterna dougallii) during the premigratory staging period1712-6568https://doaj.org/article/8e4537ae62b54bbd81c0ce34ac4e381f2019-12-01T00:00:00Zhttp://www.ace-eco.org/vol14/iss2/art11/https://doaj.org/toc/1712-6568Seabird demography and spatial distribution outside of the breeding season are poorly understood, and migratory stopover and staging sites represent important energetic bottlenecks during the avian annual cycle. We quantified hatch-year Roseate Tern (Sterna dougallii) weekly residency, weekly recruitment rate into the staging population, and derived weekly staging population growth rate during two postbreeding, premigratory staging seasons (2014 and 2015) at Cape Cod National Seashore, Massachusetts, USA. We also estimated hatch-year tern stopover duration at Cape Cod staging grounds. Tern residency probability at Cape Cod National Seashore during 2014 and 2015 was nearly 1 during the first weeks of the season and decreased steadily over the last 4 weeks to ~0.5 in the final week of the study. Recruitment rates into the staging population, representing the weekly per capita change in hatch-year terns present during the staging season, indicated that most terns arrived on the staging grounds during the first weeks of the staging season (16 July to 19 August). We also identified differences in staging duration between birds from the two breeding regions. Hatch-year terns from the southernmost region spent less time staging at Cape Cod National Seashore than their northern counterparts in both 2014 and 2015. These differences may indicate alternative staging strategies for individuals originating in different regions and possibly reveal differences in resource conditions between these areas, for example, in the availability of ephemeral prey fish.Kayla L. DavisSarah M. KarpantyJeffrey A. SpendelowJonathan B. CohenMelissa A. AlthouseKatharine C. ParsonsCristin F. LuttaziDaniel H. CatlinDaniel GibsonResilience Alliancearticlerecruitmentresidencyroseate ternstaging<span style="font-style: normal">sterna dougallii</span>Plant cultureSB1-1110Environmental sciencesGE1-350Plant ecologyQK900-989ENAvian Conservation and Ecology, Vol 14, Iss 2, p 11 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	recruitment residency roseate tern staging <span style="font-style: normal">sterna dougallii</span> Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989
spellingShingle	recruitment residency roseate tern staging <span style="font-style: normal">sterna dougallii</span> Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989 Kayla L. Davis Sarah M. Karpanty Jeffrey A. Spendelow Jonathan B. Cohen Melissa A. Althouse Katharine C. Parsons Cristin F. Luttazi Daniel H. Catlin Daniel Gibson Residency, recruitment, and stopover duration of hatch-year Roseate Terns (Sterna dougallii) during the premigratory staging period
description	Seabird demography and spatial distribution outside of the breeding season are poorly understood, and migratory stopover and staging sites represent important energetic bottlenecks during the avian annual cycle. We quantified hatch-year Roseate Tern (Sterna dougallii) weekly residency, weekly recruitment rate into the staging population, and derived weekly staging population growth rate during two postbreeding, premigratory staging seasons (2014 and 2015) at Cape Cod National Seashore, Massachusetts, USA. We also estimated hatch-year tern stopover duration at Cape Cod staging grounds. Tern residency probability at Cape Cod National Seashore during 2014 and 2015 was nearly 1 during the first weeks of the season and decreased steadily over the last 4 weeks to ~0.5 in the final week of the study. Recruitment rates into the staging population, representing the weekly per capita change in hatch-year terns present during the staging season, indicated that most terns arrived on the staging grounds during the first weeks of the staging season (16 July to 19 August). We also identified differences in staging duration between birds from the two breeding regions. Hatch-year terns from the southernmost region spent less time staging at Cape Cod National Seashore than their northern counterparts in both 2014 and 2015. These differences may indicate alternative staging strategies for individuals originating in different regions and possibly reveal differences in resource conditions between these areas, for example, in the availability of ephemeral prey fish.
format	article
author	Kayla L. Davis Sarah M. Karpanty Jeffrey A. Spendelow Jonathan B. Cohen Melissa A. Althouse Katharine C. Parsons Cristin F. Luttazi Daniel H. Catlin Daniel Gibson
author_facet	Kayla L. Davis Sarah M. Karpanty Jeffrey A. Spendelow Jonathan B. Cohen Melissa A. Althouse Katharine C. Parsons Cristin F. Luttazi Daniel H. Catlin Daniel Gibson
author_sort	Kayla L. Davis
title	Residency, recruitment, and stopover duration of hatch-year Roseate Terns (Sterna dougallii) during the premigratory staging period
title_short	Residency, recruitment, and stopover duration of hatch-year Roseate Terns (Sterna dougallii) during the premigratory staging period
title_full	Residency, recruitment, and stopover duration of hatch-year Roseate Terns (Sterna dougallii) during the premigratory staging period
title_fullStr	Residency, recruitment, and stopover duration of hatch-year Roseate Terns (Sterna dougallii) during the premigratory staging period
title_full_unstemmed	Residency, recruitment, and stopover duration of hatch-year Roseate Terns (Sterna dougallii) during the premigratory staging period
title_sort	residency, recruitment, and stopover duration of hatch-year roseate terns (sterna dougallii) during the premigratory staging period
publisher	Resilience Alliance
publishDate	2019
url	https://doaj.org/article/8e4537ae62b54bbd81c0ce34ac4e381f
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Residency, recruitment, and stopover duration of hatch-year Roseate Terns (Sterna dougallii) during the premigratory staging period

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