Stable isotopes in tissues discriminate the diet of free-living wild boar from different areas of central Italy

The use of isotopic signatures in animal tissues provides information on the environment where they are living and, notably, on their diet. Carbon and, whenever possible, nitrogen stable isotope analyses were performed in animal hairs, muscles and fat. Particularly, we analyzed both carbon and nitro...

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Autores principales: Russo, Giuseppe, Danieli, Pier Paolo, Primi, Riccardo, Amici, Andrea, Lauteri, Marco
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5560538/
https://www.ncbi.nlm.nih.gov/pubmed/28817721
http://dx.doi.org/10.1371/journal.pone.0183333
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author Russo, Giuseppe
Danieli, Pier Paolo
Primi, Riccardo
Amici, Andrea
Lauteri, Marco
author_facet Russo, Giuseppe
Danieli, Pier Paolo
Primi, Riccardo
Amici, Andrea
Lauteri, Marco
author_sort Russo, Giuseppe
collection PubMed
description The use of isotopic signatures in animal tissues provides information on the environment where they are living and, notably, on their diet. Carbon and, whenever possible, nitrogen stable isotope analyses were performed in animal hairs, muscles and fat. Particularly, we analyzed both carbon and nitrogen isotopic compositions (δ(13)C and δ(15)N) on wild boar samples across three different areas of central Italy (Latium region): Tyrrhenian Coast (TC), Maremma (MA) and Central Plains (CP). The agricultural habits of these areas imply that, in winter, no crops are available for wild boars, which feed mainly on acorns and natural feeds (tubers, earthworms etc.). In addition, the three areas were influenced by oak masting. One of these areas (CP) was characterised by the spreading of corn during the hunting season to attract the animals. For each area, we sampled 10 animals aged between 12 and 24 months and balanced by gender. Anenrichment of δ(13)C in CP area, where corn was used, was observed in all the analysed tissues in comparison to other areas (MA and TC). In CP area, enriched values of δ(15)N were also observed in all the tissues. The research demonstrates that both δ(13)C andδ(15)N in free-living wild boar tissues are influenced by sampling area. According to feeding habits of the species and wildlife management (feed supplementation), the differences observed in δ(13)C and δ(15)Nare based on the specific feeding regime; particularly the use of corn in wintertime. Furthermore, the research highlights and discusses diversities and relationships among δ(13)C and δ(15)N in the hair, fat and muscles of free-living wild boar.
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spelling pubmed-55605382017-08-25 Stable isotopes in tissues discriminate the diet of free-living wild boar from different areas of central Italy Russo, Giuseppe Danieli, Pier Paolo Primi, Riccardo Amici, Andrea Lauteri, Marco PLoS One Research Article The use of isotopic signatures in animal tissues provides information on the environment where they are living and, notably, on their diet. Carbon and, whenever possible, nitrogen stable isotope analyses were performed in animal hairs, muscles and fat. Particularly, we analyzed both carbon and nitrogen isotopic compositions (δ(13)C and δ(15)N) on wild boar samples across three different areas of central Italy (Latium region): Tyrrhenian Coast (TC), Maremma (MA) and Central Plains (CP). The agricultural habits of these areas imply that, in winter, no crops are available for wild boars, which feed mainly on acorns and natural feeds (tubers, earthworms etc.). In addition, the three areas were influenced by oak masting. One of these areas (CP) was characterised by the spreading of corn during the hunting season to attract the animals. For each area, we sampled 10 animals aged between 12 and 24 months and balanced by gender. Anenrichment of δ(13)C in CP area, where corn was used, was observed in all the analysed tissues in comparison to other areas (MA and TC). In CP area, enriched values of δ(15)N were also observed in all the tissues. The research demonstrates that both δ(13)C andδ(15)N in free-living wild boar tissues are influenced by sampling area. According to feeding habits of the species and wildlife management (feed supplementation), the differences observed in δ(13)C and δ(15)Nare based on the specific feeding regime; particularly the use of corn in wintertime. Furthermore, the research highlights and discusses diversities and relationships among δ(13)C and δ(15)N in the hair, fat and muscles of free-living wild boar. Public Library of Science 2017-08-17 /pmc/articles/PMC5560538/ /pubmed/28817721 http://dx.doi.org/10.1371/journal.pone.0183333 Text en © 2017 Russo et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Russo, Giuseppe
Danieli, Pier Paolo
Primi, Riccardo
Amici, Andrea
Lauteri, Marco
Stable isotopes in tissues discriminate the diet of free-living wild boar from different areas of central Italy
title Stable isotopes in tissues discriminate the diet of free-living wild boar from different areas of central Italy
title_full Stable isotopes in tissues discriminate the diet of free-living wild boar from different areas of central Italy
title_fullStr Stable isotopes in tissues discriminate the diet of free-living wild boar from different areas of central Italy
title_full_unstemmed Stable isotopes in tissues discriminate the diet of free-living wild boar from different areas of central Italy
title_short Stable isotopes in tissues discriminate the diet of free-living wild boar from different areas of central Italy
title_sort stable isotopes in tissues discriminate the diet of free-living wild boar from different areas of central italy
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5560538/
https://www.ncbi.nlm.nih.gov/pubmed/28817721
http://dx.doi.org/10.1371/journal.pone.0183333
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