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Divergent predation environment between two sister species of livebearing fishes (Cyprinodontiformes: Poeciliidae) predicts boldness, activity, and exploration behavior

Money, David A; Ingley, Spencer J; Johnson, Jerald B.
Rev. biol. trop; 65 (1), 2017
Abstract:Predators can influence a variety of prey traits, including behavior. Traits such as boldness, activity rate, and tendency to explore can all be shaped by predation risk. Our study examines the effects of predation on these behaviors by considering a natural system in which two sister species of...
Factores de Edad, Análisis de Varianza, Ecosistema, Poecilia/fisiología, Conducta Predatoria/fisiología, Valores de Referencia, Factores Sexuales, Especificidad de la Especie, Factores de Tiempo
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Ecology of Phallotorynus pankalos (Cyprinodontiformes: Poeciliidae) in a first-order stream of the upper Paraná Basin

Súarez, Yzel R; Silva, João Paulo da; Vasconcelos, Lilian P; Antonialli-Júnior, William Fernando.
Neotrop. ichthyol; 7 (1), 2009
Some aspects of the population ecology of Phallotorynus pankalos in a first-order stream of the Iguatemi River Basin are described based on samples taken from March/2007 to February/2008. A total of 2680 individuals, including 948 males and 1732 females was collected. Adult females are larger than males;...
Poecilia/embriología, Poecilia/anatomía & histología, Poecilia/fisiología, Fertilidad, Reproducción, Ríos
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