Phylogeography of a successful aerial disperser: the golden orb spider Nephila on Indian Ocean islands
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منابع مشابه
A golden orb-weaver spider (Araneae: Nephilidae: Nephila) from the Middle Jurassic of China
Nephila are large, conspicuous weavers of orb webs composed of golden silk, in tropical and subtropical regions. Nephilids have a sparse fossil record, the oldest described hitherto being Cretaraneus vilaltae from the Cretaceous of Spain. Five species from Neogene Dominican amber and one from the Eocene of Florissant, CO, USA, have been referred to the extant genus Nephila. Here, we report the ...
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Patterns of sexual dimorphism in dioecious organisms depend on the relative strengths of a variety of selection pressures (Andersson, 1994; Mùller, 1994). For example, selection may favour large female size if this ensures greater fecundity, parental care or dominance in contests over resources. Typically, sexual selection is thought to in ̄uence sexual size dimorphism in the context of female c...
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The golden orb-weaver spider Nephila clavipes, known for its sexual size dimorphism, is abundant and widespread in the New World. The first annotated genome of orb-weaver spiders, exploring N. clavipes, has recently been reported. The study, focused primarily on the diversity of silk specific genes, shed light into the complex evolutionary history of spiders. Furthermore, a robust transcriptome...
متن کاملMechanical properties of silk of the Australian golden orb weavers Nephila pilipes and Nephila plumipes
Silks from orb-weaving spiders are exceptionally tough, producing a model polymer for biomimetic fibre development. The mechanical properties of naturally spun silk threads from two species of Australian orb-weavers, Nephila pilipes and Nephilaplumipes, were examined here in relation to overall thread diameter, the size and number of fibres within threads, and spider size. N. pilipes, the large...
متن کاملNutrients intake determines the post-maturity molting in the golden orb-web spider Nephila pilipes (Araneae: Nephilidae)
While molting occurs in the development of many animals especially in arthropods, postmaturity molting (PMM, organisms continue to molt after sexual maturity) has received little attention. Mechanism of molting has been studied intensively, however, the mechanism of PMM remains unknown although it is suggested to be crucial for the development of body size. In this study, we investigated factor...
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ژورنال
عنوان ژورنال: BMC Evolutionary Biology
سال: 2011
ISSN: 1471-2148
DOI: 10.1186/1471-2148-11-119