What a few hairs can tell us about the resource use of giant armadillos
作者机构：Instituto Pró-CarnívorosAtibaiaSão PauloBrazil Centro Nacional de Pesquisa e Conservação de Mamíferos Carnívoros(CENAP)Instituto Chico Mendes de Conservação da Biodiversidade(ICMBio)AtibaiaSão PauloBrazil Instituto de Conservação de Animais Silvestres(ICAS)Campo GrandeMato Grosso do SulBrazil Instituto de Pesquisas EcológicasOrganização Não GovernamentalNazaréPaulistaSão PauloBrazil Houston ZooHoustonTexasUSA Naples Zoo at Caribbean GardensNaplesFloridaUSA Laboratório de Ecologia IsotópicaCentro de Energia Nuclear na AgriculturaUniversidade de São PauloPiracicabaSão PauloBrazil Laboratório de EcologiaManejo e Conservação de Fauna Silvestre(LEMaC)Departamento de Ciências FlorestaisEscola Superior de Agricultura“Luiz de Queiroz”(ESALQ)Universidade de São Paulo(USP)PiracicabaSão PauloBrazil Departamento de BiologiaFaculdade de FilosofiaCiências e LetrasUniversidade de São Paulo(USP)Ribeirão PretoSão PauloBrazil RZSS-Royal Zoological Society of Scotland(RZSS)MurrayfieldEdinburghUK
出 版 物：《Integrative Zoology》 (整合动物学（英文版）)
年 卷 期：2023年第18卷第1期
页 面：129-142页
核心收录：
学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学]
主 题：diet ontogenetic changes resource partitioning stable isotopes telemetry
摘 要：Understanding of resource requirements of vulnerable species is key for conservation ***,we used sta-ble carbon(δ13C)and nitrogen isotopes(δ15N)of hair from giant armadillos(Priodontes maximus)to understand individual resource *** collected hair from 19 giant armadillos analyzing 34 samples from the Brazilian Pan-tanal and compared the resource use between sexes and age *** also assessed the relationship of isotopic values with individuals’body mass and the habitat type *** 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 *** 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 *** 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 betweenδ13C values and body mass,suggesting that larger giant armadillos tend to feed more in open *** observed thatδ13C values decreased as individuals increased the use of habitats with high arboreal *** stress the importance of con-serving 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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