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A female songbird out-sings male conspecifics during simulated territorial intrusions
Illes, AE - Yunes-Jimenez, L

Formato:	Article
Enlaces:	While birdsong is a model system for animal communication studies, our knowledge is derived primarily from the study of only one sex and is therefore incomplete. The study of song in a role-reversed species would provide a unique opportunity to…
Fecha:	2011-01-22
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

Evolution of seasonal ecological niches in the Passerina buntings (Aves : Cardinalidae)
MartínezMeyer, E - Peterson, AT - Navarro Sigüenza, Adolfo Gerardo

Formato:	Artículo de investigación
Enlaces:	and (ii) the derived state of the breeding (rather than winter) ecological niches of each species., The evolution of migration has long been considered complex and recent work has demonstrated additional complexity: some species follow the same ecological conditions throughout…
Fecha:	20110122T10:26:37Z, 20110122T10:26:37Z, 2004
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

Families on the spot: sexual signals influence parent-offspring interactions
Morales, J - Alonso-Alvarez, C - Perez, C - Torres, R - Serafino, E - Velando, A

Formato:	Article
Enlaces:	In 1950, Tinbergen described the elicitation of offspring begging by the red spot on the bill of parent gulls, and this became a model system for behavioural studies. Current knowledge on colour traits suggests they can act as sexual signals…
Fecha:	2011-01-22
Recurso:	Facultad de Ciencias - UNAM