Maternal care and offspring behaviour in three theridiid species (Araneae, Theridiidae)

 

Guardado en:
Detalles Bibliográficos
Autores: Barrantes Montero, Gilbert, Weng, Ju Lin
Formato: artículo original
Fecha de Publicación:2009
Descripción:Maternal care is widespread in theridiids. Theridion evexum Keyserling breaks the threads in the outer layer of the egg sac to allow its spiderlings to leave the sac. Achae-aranea tesselata (Keyserling) and Anelosimus studiosus (Hentz) kill prey for their young spiderlings to feed upon. Occasionally, embryos of T. evexum die when their mother fails to break the threads of the egg sac properly, and spiderlings of A. tesselata and A. studiosus are sometimes killed when they are wrapped along with the prey when the adult spider is attacking prey. Offspring mortality is rare, suggesting that the attack behaviour is highly suppressed in spiderlings of social theridiids.
País:Kérwá
Institución:Universidad de Costa Rica
Repositorio:Kérwá
OAI Identifier:oai:kerwa.ucr.ac.cr:10669/79074
Acceso en línea:https://hdl.handle.net/10669/79074