气候变化领域集成服务门户(CCPortal): Individual diet specialisation in sparrows is driven by phenotypic plasticity in traits related to trade-offs in animal performance

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DOI	10.1111/ele.13174
	Individual diet specialisation in sparrows is driven by phenotypic plasticity in traits related to trade-offs in animal performance
	Maldonado K.; Newsome S.D.; Razeto-Barry P.; Ríos J.M.; Piriz G.; Sabat P.
发表日期	2019
ISSN	1461023X
卷号	22 期号:1
英文摘要	Individual diet specialisation (IS) is frequent in many animal taxa and affects population and community dynamics. The niche variation hypothesis (NVH) predicts that broader population niches should exhibit greater IS than populations with narrower niches, and most studies that examine the ecological factors driving IS focus on intraspecific competition. We show that phenotypic plasticity of traits associated with functional trade-offs is an important, but unrecognised mechanism that promotes and maintains IS. We measured nitrogen isotope (δ 15 N) and digestive enzyme plasticity in four populations of sparrows (Zonotrichia capensis) to explore the relationship between IS and digestive plasticity. Our results show that phenotypic plasticity associated with functional trade-offs is related in a nonlinear fashion with the degree of IS and positively with population niche width. These findings are opposite to the NVH and suggest that among individual differences in diet can be maintained via acclimatisation and not necessarily require a genetic component. © 2018 John Wiley & Sons Ltd/CNRS
英文关键词	Assimilation efficiency; diet variation; digestive efficiency; digestive enzymes; individual diet specialisation; niche breadth; niche variation hypothesis; niche width; phenotypic plasticity; stable isotopes; trade-offs; trophic niche
语种	英语
scopus关键词	Animalia; Passeridae; Zonotrichia capensis; nitrogen; adaptation; animal; diet; ecosystem; phenotype; sparrow; Adaptation, Physiological; Animals; Diet; Ecosystem; Nitrogen Isotopes; Phenotype; Sparrows
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/121193
作者单位	Departamento de Ciencias, Facultad de Artes Liberales, Universidad Adolfo Ibáñez, Diagonal Las Torres 2640, Santiago, Chile; Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile; Department of Biology, University of New Mexico, Albuquerque, NM 87131, United States; Instituto de Filosofía y Ciencias de la Complejidad, IFICC, Santiago, Los Alerces 3024, Chile; Vicerrectoría académica, Universidad Diego Portales, Manuel Rodríguez Sur 415, Santiago, Chile; Laboratorio de Química Ambiental, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA, CCT-CONICET), Mendoza, 5500, Argentina; Departamento de Ecología, Center of Applied Ecology & Sustainability (CAPES), Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, 6513677, Chile
推荐引用方式 GB/T 7714	Maldonado K.,Newsome S.D.,Razeto-Barry P.,et al. Individual diet specialisation in sparrows is driven by phenotypic plasticity in traits related to trade-offs in animal performance[J],2019,22(1).
APA	Maldonado K.,Newsome S.D.,Razeto-Barry P.,Ríos J.M.,Piriz G.,&Sabat P..(2019).Individual diet specialisation in sparrows is driven by phenotypic plasticity in traits related to trade-offs in animal performance.Ecology Letters,22(1).
MLA	Maldonado K.,et al."Individual diet specialisation in sparrows is driven by phenotypic plasticity in traits related to trade-offs in animal performance".Ecology Letters 22.1(2019).