全球智库信息集成服务系统(G2TT): Life-stage specific environments in a cichlid fish: Implications for inducible maternal effects.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1007/s10682-011-9495-5
	Life-stage specific environments in a cichlid fish: Implications for inducible maternal effects.
	Kotrschal A; Heckel G; Bonfils D; Taborsky B
发表日期	2012
出处	Evolutionary Ecology 26 (1): 123-137
出版年	2012
语种	英语
摘要	Through environmentally induced maternal effects females may fine-tune their offspring's phenotype to the conditions offspring will encounter after birth. If juvenile and adult ecologies differ, the conditions mothers experienced as juveniles may better predict their offspring's environment than the adult females' conditions. Maternal effects induced by the environment experienced by females during their early ontogeny should evolve when three ecological conditions are met: (1) Adult ecology does not predict the postnatal environmental conditions of offspring; (2) Environmental conditions for juveniles are correlated across successive generations; and (3) Juveniles occasionally settle in conditions that differ from the juvenile habitat of their mothers. By combining size-structured population counts, ecological surveys and a genetic analysis of population structure we provide evidence that all three conditions hold for Simochromis pleurospilus, a cichlid fish in which mothers adjust offspring quality to their own juvenile ecology. In particular we show (1) that the spatial niches and the habitat quality differ between juveniles and adults, and we provide genetic evidence (2) that usually fish of successive generations grow up in similar habitats, and (3) that occasional dispersal in populations with a different habitat quality is likely to occur. As adults of many species cannot predict their offspring's environment from ambient cues, life-stage specific maternal effects.
主题	Evolution and Ecology (EEP)
关键词	Maternal effect Life-stage specific Juvenile and adult environment Cichlid fish
URL	http://pure.iiasa.ac.at/id/eprint/10037/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/129449
推荐引用方式 GB/T 7714	Kotrschal A,Heckel G,Bonfils D,et al. Life-stage specific environments in a cichlid fish: Implications for inducible maternal effects.. 2012.