منابع مشابه
Fishing spider : evolutionary by - product
Fishing spider: evolutionary by-product Sexual cannibalism, per se, need not be adaptive for either sex. In a recent study of the fishing spider, Arnqvist and Henriksson4 argue that sexual cannibalism is a by-product of strong selection for female 'rapacity', or willingness to attack prey items. In this species, female fecundity is determined by the size that the female achieves in her final ju...
متن کاملGiant spider angiomas
Alka Sharma1 and Vishal Sharma2,* Department of Medicine, Government Medical College and Hospital, Chandigarh, India and Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India *Correspondence address. Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh. Tel: þ91 9501013399; Fax: þ91 1722744401;...
متن کاملCourtshii' Behavior and Sexual Cannibalism in the Semi-aquatic Fishing Spider , Dolomedes Fimbriatus (clerck) (araneae : Pisauridae)
The courtship behavior of the semi-aquatic Pisaurid fishing spider Dolomedes fimbriatus was examined in the laboratory . Male courtship was triggered by the presence of female drag-lines, presumably b y a female sex pheromone since males did not respond with courtship to male drag-lines . Male courtship behavior included vibratory signaling (water surface waves), leg-waving, and following femal...
متن کاملA rare finding of mites (Arachnida: Acari: Leeuwenhoekiidae) parasitising a whip spider (Arachnida: Amblypygi: Charinidae).
Twelve larvae of unidentified species of Odontacarus Ewing, 1929 (Acari: Leeuwenhoekiidae) were found parasitising an adult male whip spider Charinus brasilianus Weygoldt (Charinidae) in Santa Teresa, mountainous region of Espirito Santo state, southeastern Brazil. These larvae occurred in the intersegmental membrane of prosoma and legs. This is the first report of ectoparasitic mites infecting...
متن کاملSpontaneous male death and monogyny in the dark fishing spider.
Monogyny (male monogamy) is found in a diverse assemblage of taxa, and recent theoretical work reveals that a male-biased sex ratio can favour the evolution of this relatively rare mating system. We integrate this theoretical framework with field observations and laboratory experiments involving the sexually size dimorphic fishing spider, Dolomedes tenebrosus, to test the prediction that this s...
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ژورنال
عنوان ژورنال: Journal of Arachnology
سال: 2003
ISSN: 0161-8202,1937-2396
DOI: 10.1636/0161-8202(2003)031[0154:fbiagw]2.0.co;2