Data from: Large‐scale molecular diet analysis in a generalist marine mammal reveals male preference for prey of conservation concern ...
Abstract Sex‐specific diet information is important in the determination of predator impacts on prey populations. Unfortunately, the diet of males and females can be difficult to describe, particularly when they are marine predators. We combined two molecular techniques to describe haul‐out use and...
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The University of British Columbia
2020
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Online Access: | https://dx.doi.org/10.14288/1.0397760 https://doi.library.ubc.ca/10.14288/1.0397760 |
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ftdatacite:10.14288/1.0397760 2024-04-28T08:22:55+00:00 Data from: Large‐scale molecular diet analysis in a generalist marine mammal reveals male preference for prey of conservation concern ... Schwarz, Dietmar Spitzer, Sara M. Thomas, Austen C. Kohnert, Christa M. Keates, Theresa R. Acevedo-Gutiérrez, Alejandro 2020 https://dx.doi.org/10.14288/1.0397760 https://doi.library.ubc.ca/10.14288/1.0397760 unknown The University of British Columbia https://dx.doi.org/10.5683/sp2/jw6dei https://dx.doi.org/10.5061/dryad.g23j32s dataset Dataset 2020 ftdatacite https://doi.org/10.14288/1.039776010.5683/sp2/jw6dei10.5061/dryad.g23j32s 2024-04-02T09:41:15Z Abstract Sex‐specific diet information is important in the determination of predator impacts on prey populations. Unfortunately, the diet of males and females can be difficult to describe, particularly when they are marine predators. We combined two molecular techniques to describe haul‐out use and prey preferences of male and female harbor seals (Phoca vitulina) from Comox and Cowichan Bay (Canada) during 2012–2013. DNA metabarcoding quantified the diet proportions comprised of prey species in harbor seal scat, and qPCR determined the sex of the individual that deposited each scat. Using 287 female and 260 male samples, we compared the monthly sex ratio with GLMs and analyzed prey consumption relative to sex, season, site, and year with PERMANOVA. The sex ratio between monthly samples differed widely in both years (range = 12%–79% males) and showed different patterns at each haul‐out site. Male and female diet differed across both years and sites: Females consumed a high proportion of demersal fish species ... Dataset harbor seal Phoca vitulina DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
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description |
Abstract Sex‐specific diet information is important in the determination of predator impacts on prey populations. Unfortunately, the diet of males and females can be difficult to describe, particularly when they are marine predators. We combined two molecular techniques to describe haul‐out use and prey preferences of male and female harbor seals (Phoca vitulina) from Comox and Cowichan Bay (Canada) during 2012–2013. DNA metabarcoding quantified the diet proportions comprised of prey species in harbor seal scat, and qPCR determined the sex of the individual that deposited each scat. Using 287 female and 260 male samples, we compared the monthly sex ratio with GLMs and analyzed prey consumption relative to sex, season, site, and year with PERMANOVA. The sex ratio between monthly samples differed widely in both years (range = 12%–79% males) and showed different patterns at each haul‐out site. Male and female diet differed across both years and sites: Females consumed a high proportion of demersal fish species ... |
format |
Dataset |
author |
Schwarz, Dietmar Spitzer, Sara M. Thomas, Austen C. Kohnert, Christa M. Keates, Theresa R. Acevedo-Gutiérrez, Alejandro |
spellingShingle |
Schwarz, Dietmar Spitzer, Sara M. Thomas, Austen C. Kohnert, Christa M. Keates, Theresa R. Acevedo-Gutiérrez, Alejandro Data from: Large‐scale molecular diet analysis in a generalist marine mammal reveals male preference for prey of conservation concern ... |
author_facet |
Schwarz, Dietmar Spitzer, Sara M. Thomas, Austen C. Kohnert, Christa M. Keates, Theresa R. Acevedo-Gutiérrez, Alejandro |
author_sort |
Schwarz, Dietmar |
title |
Data from: Large‐scale molecular diet analysis in a generalist marine mammal reveals male preference for prey of conservation concern ... |
title_short |
Data from: Large‐scale molecular diet analysis in a generalist marine mammal reveals male preference for prey of conservation concern ... |
title_full |
Data from: Large‐scale molecular diet analysis in a generalist marine mammal reveals male preference for prey of conservation concern ... |
title_fullStr |
Data from: Large‐scale molecular diet analysis in a generalist marine mammal reveals male preference for prey of conservation concern ... |
title_full_unstemmed |
Data from: Large‐scale molecular diet analysis in a generalist marine mammal reveals male preference for prey of conservation concern ... |
title_sort |
data from: large‐scale molecular diet analysis in a generalist marine mammal reveals male preference for prey of conservation concern ... |
publisher |
The University of British Columbia |
publishDate |
2020 |
url |
https://dx.doi.org/10.14288/1.0397760 https://doi.library.ubc.ca/10.14288/1.0397760 |
genre |
harbor seal Phoca vitulina |
genre_facet |
harbor seal Phoca vitulina |
op_relation |
https://dx.doi.org/10.5683/sp2/jw6dei https://dx.doi.org/10.5061/dryad.g23j32s |
op_doi |
https://doi.org/10.14288/1.039776010.5683/sp2/jw6dei10.5061/dryad.g23j32s |
_version_ |
1797584220183330816 |