Despite the benefits associated with conservation and foraging activities, group living also means challenges for individuals. The evolutionary transition from subsocial to social life changed the reproductive life history of many animals. In social species of the genus Arachnida anerosimusproducing fewer but larger offspring appears to be a strategy to alleviate intense competition among spider offspring in polymaternal colonies compared to monomaternal colonies of subsocial species. However, it is not yet known how subsocial species in this genus benefit from producing large numbers of relatively small offspring. A large clutch can reliably subdue large or harmful prey. Additionally, many spider offspring may also efficiently repair webs in subsocial spiders. We hypothesized that colonies were initiated individually by large females. Anerosimus Javaquara and by women from other sub-society. anerosimus These species have higher survival rates than species initiated individually by small females. A. Javakuara and by women in society Anerosimus seed. We monitored the survival of three colonies. anerosimus Species with different levels of sociability and female size. All monitored cohorts had similar persistence rates. However, all of these species exhibited higher colony persistence than their more social congeners reported in the literature. We also investigated the natural enemies that contributed to the colony’s extinction, including predators, parasites, and kleptoparasites. These results allow us to discuss how sociability influences reproduction and how investing in number rather than size of offspring may benefit solitary or parasocial people. is completed. anerosimus seed.
Xavier, GM, Moura, RR, Sobchak, JF Others. There are three things that make a spider colony’s extinction independent of its degree of sociality and maternal size. anerosimus Species (Araneae, Therididae). Behavior Ecole Sociobiol 791 (2025). https://doi.org/10.1007/s00265-024-03545-5
