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- Title
Temporada de nidificación 2009 de Ara ambiguus y Ara macao en el Sureste de Nicaragua y Norte de Costa Rica.
- Authors
Monge, Guisselle; Chassot, Olivier; Ramírez, Oscar; Alemán, Indalecio; Figueroa, Alfredo; Brenes, Dayling
- Abstract
We describe the nesting of Ara ambiguus and A. macao in the El Castillo-San Juan-La Selva Biological Corridor in the lower San Juan river watershed during the 2009 breeding season. We conducted an intensive search for nests for both species with the aim to quantify them and to know their relation regarding tree species used for nesting, orientation, and height. We located a total of 31 nests of A. ambiguus in Costa Rica (n=23) and Nicaragua (n=8). The population of A. ambiguus in Nicaragua constructed its nests significantly higher (33.12±4.58 m) than those of the population of Costa Rica (19.52±6.78 m), (F=27.49; 1,29; P<0.05). We did not find a preference on the disposition of the angle of the cavity of nests for the population of Costa Rica (Rayleigh test= 0.16, n=23; P= 0.57) and the population of Nicaragua (Rayleigh test= 0.31, n=8; P= 0.47). A strong relation between the height of the trees and the height of the nests seems to exist in the population of A. ambiguus in Costa Rica (ρ=0.87; gl=21; P<0.05) which is not the case for the population in Nicaragua where there is a strong but non-significant relation (ρ=0.72; gl=6; P=0.05). The population of Nicaragua selected its nests in trees with smaller BHD (81±24.52) in relation to the population of Costa Rica, and nested solely in Dipteryx panamensis trees.
- Subjects
NICARAGUA; COSTA Rica; NEST building; SCARLET macaw; BIRD populations; ANIMAL sexual behavior
- Publication
Zeledonia, 2012, Vol 16, Issue 1, p3
- ISSN
1659-0732
- Publication type
Article