Allozyme characterization of Hogna species (Araneae, Lycosidae) of the Galápagos Archipelago
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چکیده
منابع مشابه
The relationship between offspring size and performance in the wolf spider Hogna helluo (Araneae: Lycosidae)
Life-history theory predicts a trade-off between number of offspring and investment (size) per offspring. An important component of this trade-off is how offspring size influences performance and survival. In this study, we examined the relationships between maternal size, offspring size and clutch size, as well as the relationship between offspring size and performance, in the wolf spider, Hog...
متن کاملThe effects of hunger on locomotory behaviour in two species of wolf spider (Araneae, Lycosidae).
We compared the influence of recent feeding history on locomotory behaviour in two species of wolf spiders, Hogna helluo (Walckenaer) and Pardosa milvina Hentz, in the laboratory. Both species are cursorial hunters. We maintained the spiders in the laboratory on satiation and stringent feeding regimes and measured their locomotory activity levels for 1 h using a digital activity recording devic...
متن کاملSexual Dimorphism in the Metabolic Rate of Two Species of Wolf Spider (araneae, Lycosidae)
Spiders have long been noted as classic examples of extreme sexual dimorphism and adaptations to the lifestyle of a sit-and-wait predator. We examined sex-based differences in the metabolic rate of two species of wolf spider that differ in their degree of sexual dimorphism and predatory strategy. Pardosa milvina (Hentz 1877) is a small active wolf spider that does not exhibit a large degree of ...
متن کاملIsland biogeography of Galápagos lava lizards (Tropiduridae: Microlophus): species diversity and colonization of the archipelago.
The "lava lizards" (Microlophus) are distributed throughout the Galápagos Archipelago, and consist of radiations derived from two independent colonizations. The "Eastern Radiation" includes M. bivittatus and M. habeli endemic to San Cristobal and Marchena Islands. The "Western Radiation" includes five to seven historically recognized species distributed across almost the entire Archipelago. We ...
متن کاملSpecies conservation profile of the alpine stenoendemic spider Vesubia jugorum (Araneae, Lycosidae) from the Maritime Alps
Vesubia jugorum (Simon, 1881) (Araneae: Lycosidae) is a large-sized wolf spider that occurs in alpine rocky areas above 2,000 m altitude. The species is stenoendemic, with a limited number of populations documented in the literature from the Maritime Alps (Italy, France). Due to the climate change, the current observed extent of occurrence (EEO 4,412 km ) and the area of occupancy (AOO 835 km )...
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ژورنال
عنوان ژورنال: Journal of Arachnology
سال: 2008
ISSN: 0161-8202,1937-2396
DOI: 10.1636/ca07-091.1