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A collective web of Agelena consociata in Uganda.. A social spider is a spider species whose individuals form relatively long-lasting aggregations.Whereas most spiders are solitary and even aggressive toward other members of their own species, some hundreds of species in several families show a tendency to live in groups, often referred to as colonies.
Stegodyphus dumicola, commonly known as the African social spider, is a species of spider of the family Eresidae, or the velvet spider family. It is native to Central and southern Africa. This spider is one of three Stegodyphus spiders that lives a social lifestyle (S. lineatus, S. mimosarum, and S. dumicola). This spider has been studied ...
Stegodyphus mimosarum, the African social velvet spider, is a species of the genus Stegodyphus, one of the velvet spiders. It is a social species, which is found in South Africa and Madagascar. [1] The genome sequence was published in 2014. [2]
Three of the social spider species are Stegodyphus mimosarum, Stegodyphus africanus, and Stegodyphus sarasinosum. S. sarasinorum is a social spider, hence the populations have high levels of inbreeding and relatedness. The low rates of dispersal and high turnover rates result in low gene flow and lack of speciation. Accordingly, social spiders ...
The level of sociality often varies between species (interspecies) but can vary within a species (intraspecies) as well. Many of these social spiders show cooperative brood care, use the same nest (web), and have some amount of generational overlap. [22] A few species, such as Anelosimus eximius, exhibit reproductive division of labor.
Anelosimus is a key group in the study of sociality and its evolution in spiders (Aviles 1997 [citation needed]). It contains species spanning the spectrum from solitary to highly social (quasisocial), with eight quasisocial species, far more than any other spider genus.
Highly unusual among spiders, the flat huntsman spider is a social species, even sharing prey. [1] They are often found under loose bark (their flat shape is an adaptation for this) in colonies up to 300, but they are highly aggressive and commonly cannibalistic toward members from other colonies. [4] They hunt their food rather than spin webs ...
When spiders are introduced into a colony from elsewhere, they are accepted; it is the species that matters, not the origin. This again is in contrast to social insects which defend their nests against outsiders. The spiders communicate through the use of pheromones and also through the vibrations of the web structure. [5]