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1. Accurate measurement of external conditions is fundamental for survival. For parasitoids, in particular, sensing the environmental conditions is key because they are short-lived animals that must acquire information shortly after emergence. 2. This study investigated whether conspecifics during larval growth can influence and modify the decision to orient to different quality hosts in a parasitoid with an active host-seeking larva. How the density of conspecifics during growth modifies these decisions was also studied. 3. When larvae were submitted to increases in the intensity of pre-parasitism competition and then offered different host odours, they increased the orientation to poor-quality hosts likewise. It was also found that this behaviour is general to orientation to hosts in different physiological states. 4. These results show that pre-parasitism competition can influence and modulate orientation to poor-quality hosts when high-quality hosts are not available. © 2017 The Royal Entomological Society


Documento: Artículo
Título:Behavioural plasticity induced by intraspecific competition in host orientation in a parasitoid
Autor:MartÍnez, G.A.; Castelo, M.K.; Crespo, J.E.
Filiación:Laboratorio de Entomología Experimental-Grupo de Investigación en Ecofisiología de Parasitoides y otros Insectos (GIEP), Facultad de Ciencias Exactas y Naturales, Departamento de Ecología, Genética y Evolución, Instituto IEGEBA (CONICET-UBA), Universidad de Buenos Aires, Buenos Aires, Argentina
Palabras clave:Asilidae; density dependence; host location; pre-exposition competition; behavioral response; conspecific; density dependence; emergence; environmental conditions; fly; growth; host location; host-parasitoid interaction; intraspecific competition; larva; parasitism; parasitoid; physiological response; survival; Animalia; Asilidae
Página de inicio:484
Página de fin:491
Título revista:Ecological Entomology
Título revista abreviado:Ecol. Entomol.


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---------- APA ----------
MartÍnez, G.A., Castelo, M.K. & Crespo, J.E. (2017) . Behavioural plasticity induced by intraspecific competition in host orientation in a parasitoid. Ecological Entomology, 42(4), 484-491.
---------- CHICAGO ----------
MartÍnez, G.A., Castelo, M.K., Crespo, J.E. "Behavioural plasticity induced by intraspecific competition in host orientation in a parasitoid" . Ecological Entomology 42, no. 4 (2017) : 484-491.
---------- MLA ----------
MartÍnez, G.A., Castelo, M.K., Crespo, J.E. "Behavioural plasticity induced by intraspecific competition in host orientation in a parasitoid" . Ecological Entomology, vol. 42, no. 4, 2017, pp. 484-491.
---------- VANCOUVER ----------
MartÍnez, G.A., Castelo, M.K., Crespo, J.E. Behavioural plasticity induced by intraspecific competition in host orientation in a parasitoid. Ecol. Entomol. 2017;42(4):484-491.