Genetic structure in the nonbreeding range of rufa Red Knots suggests distinct Arctic breeding populations
An understanding of the migratory connectivity between breeding and nonbreeding areas is fundamental to the management of long-distance migrants under pressure from habitat change along their flyways. Here we describe evidence for genetic structure within the nonbreeding range of the endangered Arct...
Published in: | Ornithological Applications |
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2022
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Online Access: | https://hdl.handle.net/11370/8c96d8a8-28f2-4755-b036-e95f6e593884 https://research.rug.nl/en/publications/8c96d8a8-28f2-4755-b036-e95f6e593884 https://doi.org/10.1093/ornithapp/duab053 https://pure.rug.nl/ws/files/208425413/duab053.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/8c96d8a8-28f2-4755-b036-e95f6e593884 2024-06-23T07:48:38+00:00 Genetic structure in the nonbreeding range of rufa Red Knots suggests distinct Arctic breeding populations Verkuil, Yvonne Tavares, Erika S. González, Patricia M. Choffe, Kristen Haddrath, Oliver Peck, Mark Niles, Lawrence J. Baker, Allan J. Piersma, Theunis Conklin, J. R. 2022-02-01 application/pdf https://hdl.handle.net/11370/8c96d8a8-28f2-4755-b036-e95f6e593884 https://research.rug.nl/en/publications/8c96d8a8-28f2-4755-b036-e95f6e593884 https://doi.org/10.1093/ornithapp/duab053 https://pure.rug.nl/ws/files/208425413/duab053.pdf eng eng https://research.rug.nl/en/publications/8c96d8a8-28f2-4755-b036-e95f6e593884 info:eu-repo/semantics/openAccess Verkuil , Y , Tavares , E S , González , P M , Choffe , K , Haddrath , O , Peck , M , Niles , L J , Baker , A J , Piersma , T & Conklin , J R 2022 , ' Genetic structure in the nonbreeding range of rufa Red Knots suggests distinct Arctic breeding populations ' , Ornithological Applications , vol. 124 , no. 1 , pp. 1–11 . https://doi.org/10.1093/ornithapp/duab053 article 2022 ftunigroningenpu https://doi.org/10.1093/ornithapp/duab053 2024-06-10T17:19:47Z An understanding of the migratory connectivity between breeding and nonbreeding areas is fundamental to the management of long-distance migrants under pressure from habitat change along their flyways. Here we describe evidence for genetic structure within the nonbreeding range of the endangered Arctic-Canadian rufa subspecies of Red Knots (Calidris canutus). Using blood and tissue samples from the major nonbreeding regions in Argentina (Tierra del Fuego and Río Negro), northern Brazil (Maranhão), and southeastern USA (Florida), we estimated genetic structure in 514 amplified fragment length polymorphism (AFLP) loci, applying cluster assignment analyses in DAPC, assignPOP, and STRUCTURE. Using a priori location information, individuals could be correctly re-assigned to their nonbreeding regions, which validated that the assignment accuracy of the data was sufficient. Without using a priori location information, we detected 3–5 genotype clusters, and posterior assignment probabilities of samples to these genotype clusters varied among the three regions. Lastly a chi-square test confirmed that allele frequencies varied significantly among nonbreeding regions, rejecting the hypothesis that samples were drawn from a single gene pool. Our findings hint at undescribed structure within the Red Knot rufa breeding range in the Canadian Arctic and indicate that each rufa nonbreeding area in this study hosts a different subsample of these breeding populations. The observation that nonbreeding sites of rufa Red Knots contain different genetic pools argues for separate conservation management of these sites. Article in Journal/Newspaper Arctic Arctic Calidris canutus Red Knot Tierra del Fuego University of Groningen research database Arctic Argentina Ornithological Applications 124 1 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
description |
An understanding of the migratory connectivity between breeding and nonbreeding areas is fundamental to the management of long-distance migrants under pressure from habitat change along their flyways. Here we describe evidence for genetic structure within the nonbreeding range of the endangered Arctic-Canadian rufa subspecies of Red Knots (Calidris canutus). Using blood and tissue samples from the major nonbreeding regions in Argentina (Tierra del Fuego and Río Negro), northern Brazil (Maranhão), and southeastern USA (Florida), we estimated genetic structure in 514 amplified fragment length polymorphism (AFLP) loci, applying cluster assignment analyses in DAPC, assignPOP, and STRUCTURE. Using a priori location information, individuals could be correctly re-assigned to their nonbreeding regions, which validated that the assignment accuracy of the data was sufficient. Without using a priori location information, we detected 3–5 genotype clusters, and posterior assignment probabilities of samples to these genotype clusters varied among the three regions. Lastly a chi-square test confirmed that allele frequencies varied significantly among nonbreeding regions, rejecting the hypothesis that samples were drawn from a single gene pool. Our findings hint at undescribed structure within the Red Knot rufa breeding range in the Canadian Arctic and indicate that each rufa nonbreeding area in this study hosts a different subsample of these breeding populations. The observation that nonbreeding sites of rufa Red Knots contain different genetic pools argues for separate conservation management of these sites. |
format |
Article in Journal/Newspaper |
author |
Verkuil, Yvonne Tavares, Erika S. González, Patricia M. Choffe, Kristen Haddrath, Oliver Peck, Mark Niles, Lawrence J. Baker, Allan J. Piersma, Theunis Conklin, J. R. |
spellingShingle |
Verkuil, Yvonne Tavares, Erika S. González, Patricia M. Choffe, Kristen Haddrath, Oliver Peck, Mark Niles, Lawrence J. Baker, Allan J. Piersma, Theunis Conklin, J. R. Genetic structure in the nonbreeding range of rufa Red Knots suggests distinct Arctic breeding populations |
author_facet |
Verkuil, Yvonne Tavares, Erika S. González, Patricia M. Choffe, Kristen Haddrath, Oliver Peck, Mark Niles, Lawrence J. Baker, Allan J. Piersma, Theunis Conklin, J. R. |
author_sort |
Verkuil, Yvonne |
title |
Genetic structure in the nonbreeding range of rufa Red Knots suggests distinct Arctic breeding populations |
title_short |
Genetic structure in the nonbreeding range of rufa Red Knots suggests distinct Arctic breeding populations |
title_full |
Genetic structure in the nonbreeding range of rufa Red Knots suggests distinct Arctic breeding populations |
title_fullStr |
Genetic structure in the nonbreeding range of rufa Red Knots suggests distinct Arctic breeding populations |
title_full_unstemmed |
Genetic structure in the nonbreeding range of rufa Red Knots suggests distinct Arctic breeding populations |
title_sort |
genetic structure in the nonbreeding range of rufa red knots suggests distinct arctic breeding populations |
publishDate |
2022 |
url |
https://hdl.handle.net/11370/8c96d8a8-28f2-4755-b036-e95f6e593884 https://research.rug.nl/en/publications/8c96d8a8-28f2-4755-b036-e95f6e593884 https://doi.org/10.1093/ornithapp/duab053 https://pure.rug.nl/ws/files/208425413/duab053.pdf |
geographic |
Arctic Argentina |
geographic_facet |
Arctic Argentina |
genre |
Arctic Arctic Calidris canutus Red Knot Tierra del Fuego |
genre_facet |
Arctic Arctic Calidris canutus Red Knot Tierra del Fuego |
op_source |
Verkuil , Y , Tavares , E S , González , P M , Choffe , K , Haddrath , O , Peck , M , Niles , L J , Baker , A J , Piersma , T & Conklin , J R 2022 , ' Genetic structure in the nonbreeding range of rufa Red Knots suggests distinct Arctic breeding populations ' , Ornithological Applications , vol. 124 , no. 1 , pp. 1–11 . https://doi.org/10.1093/ornithapp/duab053 |
op_relation |
https://research.rug.nl/en/publications/8c96d8a8-28f2-4755-b036-e95f6e593884 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/ornithapp/duab053 |
container_title |
Ornithological Applications |
container_volume |
124 |
container_issue |
1 |
_version_ |
1802638983800291328 |