Sources of variation in small rodent trophic niche: new insights from DNA metabarcoding and stable isotope analysis
Intraspecific competition for food is expected to increase the trophic niche width of consumers, defined here as their diet diversity, but this process has been little studied in herbivores. Population densities of small rodents fluctuate greatly, providing a good study model to evaluate effects of...
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2014
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ftdatacite:10.6084/m9.figshare.1027482.v5 2023-05-15T15:04:05+02:00 Sources of variation in small rodent trophic niche: new insights from DNA metabarcoding and stable isotope analysis Soininen, Eeva M. Ehrich, Dorothée Lecomte, Nicolas Yoccoz, Nigel G. Tarroux, Arnaud Berteaux, Dominique Gauthier, Gilles Gielly, Ludovic Brochmann, Christian Gussarova, Galina Ims, Rolf A. 2014 https://dx.doi.org/10.6084/m9.figshare.1027482.v5 https://tandf.figshare.com/articles/dataset/Sources_of_variation_in_small_rodent_trophic_niche_new_insights_from_DNA_metabarcoding_and_stable_isotope_analysis_a_href_FN0001_target_blank_a_/1027482/5 unknown Taylor & Francis https://dx.doi.org/10.1080/10256016.2014.915824 https://dx.doi.org/10.6084/m9.figshare.1027482 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Cancer Biological Sciences Ecology FOS Biological sciences Earth and Environmental Sciences dataset Dataset 2014 ftdatacite https://doi.org/10.6084/m9.figshare.1027482.v5 https://doi.org/10.1080/10256016.2014.915824 https://doi.org/10.6084/m9.figshare.1027482 2021-11-05T12:55:41Z Intraspecific competition for food is expected to increase the trophic niche width of consumers, defined here as their diet diversity, but this process has been little studied in herbivores. Population densities of small rodents fluctuate greatly, providing a good study model to evaluate effects of competition on trophic niche. We studied resource use in five arctic small rodent populations of four species combining DNA metabarcoding of stomach contents and stable isotope analysis (SIA). Our results suggest that for small rodents, the most pronounced effect of competition on trophic niche is due to increased use of secondary habitats and to habitat-specific diets, rather than an expansion of trophic niche in primary habitat. DNA metabarcoding and SIA provided complementary information about the composition and temporal variation of herbivore diets. Combing these two approaches requires caution, as the underlying processes causing observed patterns may differ between methodologies due to different spatiotemporal scales. Dataset Arctic DataCite Metadata Store (German National Library of Science and Technology) Arctic |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Cancer Biological Sciences Ecology FOS Biological sciences Earth and Environmental Sciences |
spellingShingle |
Cancer Biological Sciences Ecology FOS Biological sciences Earth and Environmental Sciences Soininen, Eeva M. Ehrich, Dorothée Lecomte, Nicolas Yoccoz, Nigel G. Tarroux, Arnaud Berteaux, Dominique Gauthier, Gilles Gielly, Ludovic Brochmann, Christian Gussarova, Galina Ims, Rolf A. Sources of variation in small rodent trophic niche: new insights from DNA metabarcoding and stable isotope analysis |
topic_facet |
Cancer Biological Sciences Ecology FOS Biological sciences Earth and Environmental Sciences |
description |
Intraspecific competition for food is expected to increase the trophic niche width of consumers, defined here as their diet diversity, but this process has been little studied in herbivores. Population densities of small rodents fluctuate greatly, providing a good study model to evaluate effects of competition on trophic niche. We studied resource use in five arctic small rodent populations of four species combining DNA metabarcoding of stomach contents and stable isotope analysis (SIA). Our results suggest that for small rodents, the most pronounced effect of competition on trophic niche is due to increased use of secondary habitats and to habitat-specific diets, rather than an expansion of trophic niche in primary habitat. DNA metabarcoding and SIA provided complementary information about the composition and temporal variation of herbivore diets. Combing these two approaches requires caution, as the underlying processes causing observed patterns may differ between methodologies due to different spatiotemporal scales. |
format |
Dataset |
author |
Soininen, Eeva M. Ehrich, Dorothée Lecomte, Nicolas Yoccoz, Nigel G. Tarroux, Arnaud Berteaux, Dominique Gauthier, Gilles Gielly, Ludovic Brochmann, Christian Gussarova, Galina Ims, Rolf A. |
author_facet |
Soininen, Eeva M. Ehrich, Dorothée Lecomte, Nicolas Yoccoz, Nigel G. Tarroux, Arnaud Berteaux, Dominique Gauthier, Gilles Gielly, Ludovic Brochmann, Christian Gussarova, Galina Ims, Rolf A. |
author_sort |
Soininen, Eeva M. |
title |
Sources of variation in small rodent trophic niche: new insights from DNA metabarcoding and stable isotope analysis |
title_short |
Sources of variation in small rodent trophic niche: new insights from DNA metabarcoding and stable isotope analysis |
title_full |
Sources of variation in small rodent trophic niche: new insights from DNA metabarcoding and stable isotope analysis |
title_fullStr |
Sources of variation in small rodent trophic niche: new insights from DNA metabarcoding and stable isotope analysis |
title_full_unstemmed |
Sources of variation in small rodent trophic niche: new insights from DNA metabarcoding and stable isotope analysis |
title_sort |
sources of variation in small rodent trophic niche: new insights from dna metabarcoding and stable isotope analysis |
publisher |
Taylor & Francis |
publishDate |
2014 |
url |
https://dx.doi.org/10.6084/m9.figshare.1027482.v5 https://tandf.figshare.com/articles/dataset/Sources_of_variation_in_small_rodent_trophic_niche_new_insights_from_DNA_metabarcoding_and_stable_isotope_analysis_a_href_FN0001_target_blank_a_/1027482/5 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
https://dx.doi.org/10.1080/10256016.2014.915824 https://dx.doi.org/10.6084/m9.figshare.1027482 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.1027482.v5 https://doi.org/10.1080/10256016.2014.915824 https://doi.org/10.6084/m9.figshare.1027482 |
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