Precopulatory mate guarding and mating in Tachidius discipes (Copepoda: Harpacticoida)
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منابع مشابه
Life cycle and precopulatory mate guarding of Goidelia japonica (Copepoda: Poecilostomatoida: Echiurophilidae) associated with the echiuran Urechis unicinctus
The life cycle and precopulatory mate guarding behavior of the poecilostomatoid copepod Goidelia japonica associated with the spoon worm Urechis unicinctus (Echiura) are described based on specimens from 19 worms collected from western Japan. A total of 676 copepods were collected from the host’s rectum (494 copepods) and body surface (182 copepods). Copepod numbers were significantly correlate...
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 کاملDoes 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...
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ژورنال
عنوان ژورنال: Bijdragen tot de Dierkunde
سال: 1997
ISSN: 0067-8546,2666-0644
DOI: 10.1163/26660644-06604001