Data/hora: 09/06/2024 04:41:18

Provedor de dados: 	Mastozoología Neotropical	
País: 	Argentina	
Título: 	Behavioral counter-strategies against infanticide in corn mouse females, Calomys musculinus	
Autores: 	Coda,José A.; Priotto,José W.; Steinmann,Andrea R.	
Data: 	2011-12-01	
Ano: 	2011	
Palavras-chave: 	Rodent; Infanticide; Behavioral strategies; Counter-strategies; Mother aggression.	
Resumo: 	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 among the three groups tested. Mothers showed high rates of aggressive behavior towards females. In presence of siring males mothers remained calm inside the nest. When the intruders were non-siring males mothers exhibited high rates of nest defense behavior. The lowest survival rate was registered in presence of the non-siring males, while the highest rates were registered in presence of females or siring males. The absence of aggressiveness and the high rate of nest defense by mothers against siring and non-siring males respectively, would support that promiscuity acts as a counter-strategy against infanticide by males. Mother aggressive behavior against intruder females would show that female territoriality may be an effective way of pup protection.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832011000200003	
Editor: 	Sociedad Argentina para el Estudio de los Mamíferos (SAREM)	
Formato: 	text/html	
Fonte: 	Mastozoología neotropical  v.18 n.2 2011	
Fonte: 	info:eu-repo/semantics/openAccess