BECAS
FUENTES Giselle Magali
congresos y reuniones científicas
Título:
Neophobia and explorative behavior in Milvago chimango: a comparative analysis across a gradient of environment urbanization
Autor/es:
FUENTES GISELLE; CORDOBA RODRIGO; PATERLINI CARLA; BO MARÍA SUSANA
Lugar:
Puerto Iguazú
Reunión:
Congreso; ORNITOLOGICAL CONGRESS OF AMERICAS; 2017
Institución organizadora:
Aves Argentinas en conjunto con la Association of Field Ornithologists (AFO) y Sociedade Brasileira de Ornitología (SBO).
Resumen:
In this work, the variability of neophobia and exploratory behavior of Milvago chimangoin function of the level of environmental urbanization was analyzed, as well as therelationship between these two behaviors. In addition, we analyzed the behavioral typespresent in these birds according to their environment of origin. Thirteen urban,10suburban and 10 rural birds were capture during non-breeding period. These individualswere then housed at individual outdoor aviaries. Two consecutive tests were given to eachbird: In the neophobia test we compared the time until feeding in presence or absence ofa novel object next to the food. The exploration test consisted in the exposure of each birdto 6 different objects. the latency to approach, contact and the total time spent exploringthe objects were recorded. The rural birds showed the highest levels of neophobia.Exploration latency was lower in urban than rural birds, and intermediate in suburbanindividuals. The highest values of exploration time were found in both urban and ruralbirds. Neophobia level correlated negatively with exploration time. The differentialexpression of neophobia and exploration allowed the characterization of birds in threebehavioral types according to their environments: suburban as less neophobic, as well asfast and superficial explorers; rural as more neophobic, as well as slow and exhaustiveexplorers; and urban birds as less neophobic, as well as, fast and exhaustive explorers.The presence of these behavioral types would be related to the structural complexity,resources predictability and predation pressure of each environment studied.