Does foreplay matter? Gammarus pulex females may benefit from long-lasting precopulatory mate guarding
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چکیده
منابع مشابه
Does foreplay matter? Gammarus pulex females may benefit from long-lasting precopulatory mate guarding.
Precopulatory mate guarding (PCMG) is generally assumed to be costly for both sexes. However, males may gain by displaying long-lasting mate guarding under strong male-male competition. Surprisingly, the potential for females to benefit from being held by males has been largely overlooked in previous studies. In Gammarus pulex, an amphipod crustacean, PCMG lasts several weeks, yet females are d...
متن کاملReduced survival associated with precopulatory mate guarding in male Asellus aquaticus (Isopoda)
Precopulatory mate-guarding in aquatic crustaceans is known to have immediate costs for the guarding male. The extent to which guarding behavior may reduce future reproductive opportunities, however, is less established. We examined the survival and antennae length, suggested to be important in detecting receptive females, in male freshwater isopods (Asellus aquaticus) collected paired or unpai...
متن کاملFemale Reproductive Cycle and Sexual Con~ict over Precopulatory Mate!guarding in Thermosphaeroma "Crustacea\ Isopoda#
In species with time!limited opportunities for insemination\ precopulatory mate!guarding is expected to coevolve with the duration of female reproductive cycles[ Despite this adaptation to female characteristics\ it may also be advan! tageous for males to adjust the duration of guarding with respect to sex ratio because the bene_ts of guarding are dependent on the availability of females[ If fe...
متن کاملDynamics of intersexual conflict over precopulatory mate guarding in two populations of the isopod Idotea baltica.
Aggressiveness during intersexual conflicts is predicted to depend on its costs, the value of winning and the power asymmetry of the contestants, all of which may vary between populations. In the marine isopod Idotea baltica (Pallas) a conflict occurs as females resist the attempts by males to start precopulatory mate guarding. We analysed contest dynamics with respect to female maturity stage,...
متن کاملHuman mate guarding.
Long-term committed mating is a fundamental strategy in the human repertoire. Successful enactment of this strategy requires solving two related adaptive problems--fending off potential mate poachers and preventing a mates from defecting. Mate guarding adaptations evolved to solve these persistent problems. Those who failed in mate guarding risked suffering substantial reproductive costs rangin...
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ژورنال
عنوان ژورنال: Biology Letters
سال: 2010
ISSN: 1744-9561,1744-957X
DOI: 10.1098/rsbl.2010.0924