Data from: Limited dietary overlap amongst resident Arctic herbivores in winter - complementary insights from complementary methods
Snow may prevent Arctic herbivores from accessing their forage in winter, forcing them to aggregate in the few patches with limited snow. In High Arctic Greenland, Arctic hare and rock ptarmigan often forage in muskox feeding craters. We therefore hypothesized that due to limited availability of for...
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ftzenodo:oai:zenodo.org:5001975 2023-05-15T14:31:31+02:00 Data from: Limited dietary overlap amongst resident Arctic herbivores in winter - complementary insights from complementary methods Schmidt, Niels M. Mosbacher, Jesper B. Vesterinen, Eero J. Roslin, Tomas Michelsen, Anders 2018-05-14 https://zenodo.org/record/5001975 https://doi.org/10.5061/dryad.48t6710 unknown doi:10.1007/s00442-018-4147-x https://zenodo.org/communities/dryad https://zenodo.org/record/5001975 https://doi.org/10.5061/dryad.48t6710 oai:zenodo.org:5001975 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Anthropocene Lagopus mutus Ovibos moschatus Lepus arcticus tundra info:eu-repo/semantics/other dataset 2018 ftzenodo https://doi.org/10.5061/dryad.48t671010.1007/s00442-018-4147-x 2023-03-11T00:23:17Z Snow may prevent Arctic herbivores from accessing their forage in winter, forcing them to aggregate in the few patches with limited snow. In High Arctic Greenland, Arctic hare and rock ptarmigan often forage in muskox feeding craters. We therefore hypothesized that due to limited availability of forage, the dietary niches of these resident herbivores overlap considerably, and that the overlap increases as winter progresses. To test this, we analyzed fecal samples collected in early and late winter. We used molecular analysis to identify the plant taxa consumed, and stable isotope ratios of carbon and nitrogen to quantify the dietary niche breadth and dietary overlap. The plant taxa found indicated only limited dietary differentiation between the herbivores. As expected, dietary niches exhibited a strong contraction from early to late winter, especially for rock ptarmigan. This may indicate increasing reliance on particular plant resources as winter progresses. In early winter, the diet of rock ptarmigan overlapped slightly with that of muskox and Arctic hare. Contrary to our expectations, no inter-specific dietary niche overlap was observed in late winter. This overall pattern was specifically revealed by combined analysis of molecular data and stable isotope contents. Hence, despite foraging in the same areas and generally feeding on the same plant taxa, the quantitative dietary overlap between the three herbivores was limited. This may be attributable to species-specific consumption rates of plant taxa. Yet, Arctic hare and rock ptarmigan may benefit from muskox opening up the snow pack, thereby allowing them to access the plants. ZOTUsDenoised, chimera-filtered, and clustered ZOTUs from the sequence data.ZOTUtabsZOTUtab linking ZOTUs to samples (and replicates).Raw Fastq filesRaw fastq files from the first (primers pairs ch, gh, and ITS; all samples pooled and then index-tagged) and second run (primer pairs ch and gh, all reactions and replicates tagged individually) for the study. The file names refer to ... Dataset Arctic hare Arctic Greenland Lagopus mutus Lepus arcticus muskox ovibos moschatus rock ptarmigan Tundra Zenodo Arctic Greenland |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Anthropocene Lagopus mutus Ovibos moschatus Lepus arcticus tundra |
spellingShingle |
Anthropocene Lagopus mutus Ovibos moschatus Lepus arcticus tundra Schmidt, Niels M. Mosbacher, Jesper B. Vesterinen, Eero J. Roslin, Tomas Michelsen, Anders Data from: Limited dietary overlap amongst resident Arctic herbivores in winter - complementary insights from complementary methods |
topic_facet |
Anthropocene Lagopus mutus Ovibos moschatus Lepus arcticus tundra |
description |
Snow may prevent Arctic herbivores from accessing their forage in winter, forcing them to aggregate in the few patches with limited snow. In High Arctic Greenland, Arctic hare and rock ptarmigan often forage in muskox feeding craters. We therefore hypothesized that due to limited availability of forage, the dietary niches of these resident herbivores overlap considerably, and that the overlap increases as winter progresses. To test this, we analyzed fecal samples collected in early and late winter. We used molecular analysis to identify the plant taxa consumed, and stable isotope ratios of carbon and nitrogen to quantify the dietary niche breadth and dietary overlap. The plant taxa found indicated only limited dietary differentiation between the herbivores. As expected, dietary niches exhibited a strong contraction from early to late winter, especially for rock ptarmigan. This may indicate increasing reliance on particular plant resources as winter progresses. In early winter, the diet of rock ptarmigan overlapped slightly with that of muskox and Arctic hare. Contrary to our expectations, no inter-specific dietary niche overlap was observed in late winter. This overall pattern was specifically revealed by combined analysis of molecular data and stable isotope contents. Hence, despite foraging in the same areas and generally feeding on the same plant taxa, the quantitative dietary overlap between the three herbivores was limited. This may be attributable to species-specific consumption rates of plant taxa. Yet, Arctic hare and rock ptarmigan may benefit from muskox opening up the snow pack, thereby allowing them to access the plants. ZOTUsDenoised, chimera-filtered, and clustered ZOTUs from the sequence data.ZOTUtabsZOTUtab linking ZOTUs to samples (and replicates).Raw Fastq filesRaw fastq files from the first (primers pairs ch, gh, and ITS; all samples pooled and then index-tagged) and second run (primer pairs ch and gh, all reactions and replicates tagged individually) for the study. The file names refer to ... |
format |
Dataset |
author |
Schmidt, Niels M. Mosbacher, Jesper B. Vesterinen, Eero J. Roslin, Tomas Michelsen, Anders |
author_facet |
Schmidt, Niels M. Mosbacher, Jesper B. Vesterinen, Eero J. Roslin, Tomas Michelsen, Anders |
author_sort |
Schmidt, Niels M. |
title |
Data from: Limited dietary overlap amongst resident Arctic herbivores in winter - complementary insights from complementary methods |
title_short |
Data from: Limited dietary overlap amongst resident Arctic herbivores in winter - complementary insights from complementary methods |
title_full |
Data from: Limited dietary overlap amongst resident Arctic herbivores in winter - complementary insights from complementary methods |
title_fullStr |
Data from: Limited dietary overlap amongst resident Arctic herbivores in winter - complementary insights from complementary methods |
title_full_unstemmed |
Data from: Limited dietary overlap amongst resident Arctic herbivores in winter - complementary insights from complementary methods |
title_sort |
data from: limited dietary overlap amongst resident arctic herbivores in winter - complementary insights from complementary methods |
publishDate |
2018 |
url |
https://zenodo.org/record/5001975 https://doi.org/10.5061/dryad.48t6710 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic hare Arctic Greenland Lagopus mutus Lepus arcticus muskox ovibos moschatus rock ptarmigan Tundra |
genre_facet |
Arctic hare Arctic Greenland Lagopus mutus Lepus arcticus muskox ovibos moschatus rock ptarmigan Tundra |
op_relation |
doi:10.1007/s00442-018-4147-x https://zenodo.org/communities/dryad https://zenodo.org/record/5001975 https://doi.org/10.5061/dryad.48t6710 oai:zenodo.org:5001975 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.48t671010.1007/s00442-018-4147-x |
_version_ |
1766305125046943744 |