Data from: No assortative mating based on size in black guillemots breeding in the Canadian Arctic
The Black Guillemot (Cepphus grylle) is a monomorphic, socially monogamous member of the Alcidae. Although aspects of their breeding and foraging ecology have been extensively studied, less is known about possible sex-based differences in morphology, nor whether Black Guillemots mate assortatively b...
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ftdryad:oai:v1.datadryad.org:10255/dryad.88466 2023-05-15T14:25:08+02:00 Data from: No assortative mating based on size in black guillemots breeding in the Canadian Arctic Berzins, Lisha L. Gilchrist, H. Grant Burness, Gary East Bay Island Southampton Island Nunavut 64°01’N 81°47’W 2015-05-27T14:56:09Z http://hdl.handle.net/10255/dryad.88466 https://doi.org/10.5061/dryad.1bm5t unknown 32;3;2009 doi:10.5061/dryad.1bm5t/1 doi:10.1675/063.032.0313 doi:10.5061/dryad.1bm5t Berzins LL, Gilchrist HG, Burness G (2009) No assortative mating based on size in black guillemots breeding in the Canadian Arctic. Waterbirds 32(3): 459-463. http://hdl.handle.net/10255/dryad.88466 discriminant function analysis Black guillemot Article 2015 ftdryad https://doi.org/10.5061/dryad.1bm5t https://doi.org/10.5061/dryad.1bm5t/1 https://doi.org/10.1675/063.032.0313 2020-01-01T15:20:19Z The Black Guillemot (Cepphus grylle) is a monomorphic, socially monogamous member of the Alcidae. Although aspects of their breeding and foraging ecology have been extensively studied, less is known about possible sex-based differences in morphology, nor whether Black Guillemots mate assortatively based on body size. Using molecular techniques, we identified the sex of 26 male and 21 female Black Guillemots captured in the Canadian Arctic, and measured six external body measurements: outer tarsus length, wing length, culmen length, bill depth, head plus bill length and body mass to test for sexual size dimorphism (SSD) and assortative mating. Overall, males were 1.7% and 8% larger than females in outer tarsus length and bill depth, respectively. Within breeding pairs, bill depth was the most dimorphic trait. Despite these morphological differences no evidence of assortative mating based upon body size was found. Thus, mate choice for body size does not appear to be an underlying mechanism of SSD in bill depth in Black Guillemots. Article in Journal/Newspaper Arctic Arctic Black guillemot Cepphus grylle Nunavut Southampton Island Dryad Digital Repository (Duke University) Arctic East Bay ENVELOPE(-36.426,-36.426,-54.288,-54.288) Nunavut Southampton Island ENVELOPE(-84.501,-84.501,64.463,64.463) |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
discriminant function analysis Black guillemot |
spellingShingle |
discriminant function analysis Black guillemot Berzins, Lisha L. Gilchrist, H. Grant Burness, Gary Data from: No assortative mating based on size in black guillemots breeding in the Canadian Arctic |
topic_facet |
discriminant function analysis Black guillemot |
description |
The Black Guillemot (Cepphus grylle) is a monomorphic, socially monogamous member of the Alcidae. Although aspects of their breeding and foraging ecology have been extensively studied, less is known about possible sex-based differences in morphology, nor whether Black Guillemots mate assortatively based on body size. Using molecular techniques, we identified the sex of 26 male and 21 female Black Guillemots captured in the Canadian Arctic, and measured six external body measurements: outer tarsus length, wing length, culmen length, bill depth, head plus bill length and body mass to test for sexual size dimorphism (SSD) and assortative mating. Overall, males were 1.7% and 8% larger than females in outer tarsus length and bill depth, respectively. Within breeding pairs, bill depth was the most dimorphic trait. Despite these morphological differences no evidence of assortative mating based upon body size was found. Thus, mate choice for body size does not appear to be an underlying mechanism of SSD in bill depth in Black Guillemots. |
format |
Article in Journal/Newspaper |
author |
Berzins, Lisha L. Gilchrist, H. Grant Burness, Gary |
author_facet |
Berzins, Lisha L. Gilchrist, H. Grant Burness, Gary |
author_sort |
Berzins, Lisha L. |
title |
Data from: No assortative mating based on size in black guillemots breeding in the Canadian Arctic |
title_short |
Data from: No assortative mating based on size in black guillemots breeding in the Canadian Arctic |
title_full |
Data from: No assortative mating based on size in black guillemots breeding in the Canadian Arctic |
title_fullStr |
Data from: No assortative mating based on size in black guillemots breeding in the Canadian Arctic |
title_full_unstemmed |
Data from: No assortative mating based on size in black guillemots breeding in the Canadian Arctic |
title_sort |
data from: no assortative mating based on size in black guillemots breeding in the canadian arctic |
publishDate |
2015 |
url |
http://hdl.handle.net/10255/dryad.88466 https://doi.org/10.5061/dryad.1bm5t |
op_coverage |
East Bay Island Southampton Island Nunavut 64°01’N 81°47’W |
long_lat |
ENVELOPE(-36.426,-36.426,-54.288,-54.288) ENVELOPE(-84.501,-84.501,64.463,64.463) |
geographic |
Arctic East Bay Nunavut Southampton Island |
geographic_facet |
Arctic East Bay Nunavut Southampton Island |
genre |
Arctic Arctic Black guillemot Cepphus grylle Nunavut Southampton Island |
genre_facet |
Arctic Arctic Black guillemot Cepphus grylle Nunavut Southampton Island |
op_relation |
32;3;2009 doi:10.5061/dryad.1bm5t/1 doi:10.1675/063.032.0313 doi:10.5061/dryad.1bm5t Berzins LL, Gilchrist HG, Burness G (2009) No assortative mating based on size in black guillemots breeding in the Canadian Arctic. Waterbirds 32(3): 459-463. http://hdl.handle.net/10255/dryad.88466 |
op_doi |
https://doi.org/10.5061/dryad.1bm5t https://doi.org/10.5061/dryad.1bm5t/1 https://doi.org/10.1675/063.032.0313 |
_version_ |
1766297561846513664 |