Gender choice and gender conflict in a non-reciprocally mating simultaneous hermaphrodite, the freshwater snail, Physa
Article Abstract:
A study confirms that autosperm build-up hypothesis of male reproductive behavior influences gender choice and gender conflict in Physa snails during mating. High autosperm store increases the probability of starting copulation as male in any encounter. Snails with high reserves of allosperm when mounted as females decrease the probability of mating by rejective behavior. Evasive behavior in the encounters of virgin snails signify male-male gender conflict in simulataneous hermaphrodites, while such behavior between virgin snails and previously mated ones is seen as sexual conflict.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1996
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Mate choice by male Japanese medaka (Pisces, Oryziidae)
Article Abstract:
A study of mate choice by male Japanese medaka shows that males prefer to mate with large females. The size of the female does not influence the likelihood of spawning, although clutch size is directly related to the size of the female. Males do not court the largest female first, but they spend the most time with the female they think has the most fecundity. Japanese medaka have a promiscuous mating system as there is no parenting of the offspring.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1995
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Male choice on the basis of female melanin pattern in Pieris butterflies
Article Abstract:
Field experimental studies show that males of related butterflies, Pieris occidentalis and P. protodice, exhibit preference for conspecific females with typical dorsal melanin pattern over heavily melanized conspecifics. Heterospecific females are differentiated by male P. occidentalis, while P. protodice males do not exhibit interspecific mate preference. Interspecific male mating choices are adaptive in both species.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1995
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