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What a few hairs can tell us about the resource use of giant armadillos.
Magioli, Marcelo; Attias, Nina; Massocato, Gabriel; Kluyber, Danilo; Moreira, Marcelo Zacharias; Ferraz, Katia Maria Paschoaletto Micchi de Barros; Chiarello, Adriano Garcia; Desbiez, Arnaud L J.
Afiliación
  • Magioli M; Instituto Pró-Carnívoros, Atibaia, São Paulo, Brazil.
  • Attias N; Centro Nacional de Pesquisa e Conservação de Mamíferos Carnívoros (CENAP), Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio), Atibaia, São Paulo, Brazil.
  • Massocato G; Instituto de Conservação de Animais Silvestres (ICAS), Campo Grande, Mato Grosso do Sul, Brazil.
  • Kluyber D; Instituto de Conservação de Animais Silvestres (ICAS), Campo Grande, Mato Grosso do Sul, Brazil.
  • Moreira MZ; Instituto de Pesquisas Ecológicas, Organização Não Governamental, Nazaré Paulista, São Paulo, Brazil.
  • Ferraz KMPMB; Houston Zoo, Houston, Texas, USA.
  • Chiarello AG; Instituto de Pesquisas Ecológicas, Organização Não Governamental, Nazaré Paulista, São Paulo, Brazil.
  • Desbiez ALJ; Naples Zoo at Caribbean Gardens, Naples, Florida, USA.
Integr Zool ; 18(1): 129-142, 2023 Jan.
Article en En | MEDLINE | ID: mdl-35278278
Understanding of resource requirements of vulnerable species is key for conservation planning. Here, we used stable carbon (δ13 C) and nitrogen isotopes (δ15 N) of hair from giant armadillos (Priodontes maximus) to understand individual resource use. We collected hair from 19 giant armadillos analyzing 34 samples from the Brazilian Pantanal and compared the resource use between sexes and age classes. We also assessed the relationship of isotopic values with individuals' body mass and the habitat type used. We observed a wide variation in resource use by giant armadillos, showing that individuals consume prey that feeds on distinct resources and occupies different habitat types, indicating that there is individual variation in foraging behavior. Most giant armadillos presented a mixed diet (C3 /C4 resources, forests/open areas), but a quarter of individuals had strictly C4 diets (open areas). Males are more prone to forage on C4 resources, presenting an isotopic niche 2.6-times larger than that of females. Subadults presented diets more associated with habitats with high arboreal cover (C3 resources, forests), while adults foraged more in open areas (C4 resources). This result is mirrored by the positive relationship between δ13 C values and body mass, suggesting that larger giant armadillos tend to feed more in open areas. We observed that δ13 C values decreased as individuals increased the use of habitats with high arboreal cover. We stress the importance of conserving the natural mosaic in the Pantanal landscape for the species persistence, given that giant armadillos require all habitat types to fulfill their dietary, spatial, and developmental needs.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Armadillos / Ecosistema Límite: Animals Idioma: En Revista: Integr Zool Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Australia
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Armadillos / Ecosistema Límite: Animals Idioma: En Revista: Integr Zool Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Australia