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	Provedor de dados Rev. Bras. Zool. (1) Mastozool. neotrop. (1) Autor Antonini,Yasmine (1) Azevedo,Cristiano S. de (1) Claudino,Ricardo M. (1) Coda,José A. (1) Lanna,Lucas L. (1) Oliveira,Reisla (1) Priotto,José W. (1) Steinmann,Andrea R. (1) Mais... Palavra-chave Behavioral strategies (2) Counter-strategies (1) Dominance (1) Food resources (1) Infanticide (1) Mother aggression (1) Rodent (1) Subordination (1) Trapline (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2017 (1) 2011 (1) País Argentina (1) Brazil (1) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Behavioral counter-strategies against infanticide in corn mouse females, Calomys musculinus Mastozool. neotrop. Coda,José A.; Priotto,José W.; Steinmann,Andrea R.. Based on the hypothesis that in C. musculinus both female territorial behavior and promiscuity are counter-strategies against infanticide by females and males respectively, our objective was to test the following predictions: (1) mother aggression deters infanticide by females; (2) previous matings prevent infanticide by males. We conducted 116 behavioral encounters between mothers and intruders to study the nest related behaviors. Mother-pups units (Mu) were grouped in three treatments in relation to the intruder feature: 55 Mu were placed with siring males, 27 Mu and 34 Mu were housed with non-siring males and reproductively active females, respectively. We also calculated offspring survival rate for each treatment. The nest related behaviors varied... Tipo: Info:eu-repo/semantics/article Palavras-chave: Rodent; Infanticide; Behavioral strategies; Counter-strategies; Mother aggression. Ano: 2011 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832011000200003 Feeding behavior by hummingbirds (Aves: Trochilidae) in artificial food patches in an Atlantic Forest remnant in southeastern Brazil Rev. Bras. Zool. Lanna,Lucas L.; Azevedo,Cristiano S. de; Claudino,Ricardo M.; Oliveira,Reisla; Antonini,Yasmine. ABSTRACT During flight, hummingbirds achieve the maximum aerobic metabolism rates within vertebrates. To meet such demands, these birds have to take in as much energy as possible, using strategies such as selecting the best food resources and adopting behaviors that allow the greatest energy gains. We tested whether hummingbirds choose sources that have higher sugar concentrations, and investigated their behaviors near and at food resources. The study was conducted at Atlantic forest remnant in Brazil, between June and December 2012. Four patches were provided with artificial feeders, containing sucrose solutions at concentrations of 5%, 15%, 25% and 35% weight/volume. Hummingbird behaviors were recorded using the ad libitum method with continuous... Tipo: Info:eu-repo/semantics/article Palavras-chave: Behavioral strategies; Dominance; Food resources; Subordination; Trapline. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702017000100305 Registros recuperados: 2 Primeira ... 1 ... Última

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