English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/45443
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Individual and collective foraging decisions: a field study of worker recruitment in the gypsy ant Aphaenogaster senilis

AutorCerdá, Xim ; Angulo, Elena ; Boulay, Raphaël; Lenoir, Alain
Palabras claveForaging
Group recruitment
Food size
Fecha de publicaciónabr-2009
CitaciónBehav Ecol Sociobiol (2009) 63:551–562
ResumenIn social insects, the decision to exploit a food source is made both at the individual (e.g., a worker collecting a food item) and colony level (e.g., several workers communicating the existence of a food patch). In group recruitment, the recruiter lays a temporary chemical trail while returning from the food source to the nest and returns to the food guiding a small group of nestmates. We studied how food characteristics influence the decision-making process of workers changing from individual retrieving to group recruitment in the gypsy ant Aphaenogaster senilis. We offered field colonies three types of prey: crickets (cooperatively transportable), shrimps (non-transportable), and different quantities of sesame seeds (individually transportable). Colonies used group recruitment to collect crickets and shrimps, as well as seeds when they were available in large piles, while small seed piles rarely led to recruitment. Foragers were able to “measure” food characteristics (quality, quantity, transportability), deciding whether or not to recruit, accordingly. Social integration of individual information about food emerged as a colony decision to initiate or to continue recruitment when the food patch was rich. In addition, group recruitment allowed a fast colony response over a wide thermal range (up to 45°C ground temperature). Therefore, by combining both advantages of social foraging (group recruitment) and thermal tolerance, A. senilis accurately exploited different types of food sources which procured an advantage against mass-recruiting and behaviorally dominant species such as Tapinoma nigerrimum and Lasius niger.
Versión del editorhttp://www.springerlink.com/content/7615312145076705/fulltext.pdf
Aparece en las colecciones: (EBD) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
38662766.doc1,13 MBMicrosoft WordVisualizar/Abrir
Mostrar el registro completo

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.