adult survival selection in relation to multilocus heterozygosity and body size in a tropical bird species, the zenaida dove, zenaida aurita.both phenotypic and genetic quality can influence the survival of individuals through time, although their relative influences are rarely addressed simultaneously. here we used capture-mark-recapture modelling to assess the influence of both multilocus heterozygosity (mlh) and body size on apparent adult survival in a tropical bird species, the zenaida dove, zenaida aurita, using a sample of 391 individuals genotyped at 11 microsatellites, while controlling for the effects of sex. no effect of b ...201626433960
colonisation and diversification of the zenaida dove (zenaida aurita) in the antilles: phylogeography, contemporary gene flow and morphological divergence.caribbean avifaunal biogeography has been mainly studied based on mitochondrial dna. here, we investigated both past and recent island differentiation and micro-evolutionary changes in the zenaida dove (zenaida aurita) based on combined information from one mitochondrial (cytochrome c oxydase subunit i, coi) and 13 microsatellite markers and four morphological characters. this caribbean endemic and abundant species has a large distribution, and two subspecies are supposed to occur: z. a. zenaida ...201324349217
heterozygosity-fitness correlations in adult and juvenile zenaida dove, zenaida aurita.understanding how fitness is related to genetic variation is of crucial importance in both evolutionary ecology and conservation biology. we report a study of heterozygosity-fitness correlations in a wild, noninbred population of zenaida doves, zenaida aurita, based on a sample comprising 489 individuals (382 adults and 107 juveniles) typed at 13 microsatellite loci, resulting in a data set comprising 5793 genotypes. in both adults and juveniles, and irrespective of sex, no evidence was found fo ...201223091225
a field test of behavioural flexibility in zenaida doves (zenaida aurita).animals' ability to adjust their behaviour when environmental conditions change can increase their likelihood of survival. although such behavioural flexibility is regularly observed in the field, it has proven difficult to systematically quantify and predict inter-individual differences in free-living animals. we presented 24 zenaida doves (zenaida aurita) on 12 territories with two learning tests in their natural habitat in barbados. the dove pairs showed high site fidelity and territoriality, ...201020615457
ecological correlates of social learning: problems and solutions for the comparative method.interspecific variation in learning and cognition is often accounted for by adaptive specialization, an ecological framework where variation between species in the environmental problems they face is thought to select for quantitatively and/or qualitatively different abilities. adaptive specialization theory relies on the comparative method for testing its hypotheses and assumes a naturally selected basis for the predicted differences. this review examines social learning as a specialization to ...199524896028
mode of foraging competition is related to tutor preference in zenaida aurita.this study compared the direction of social learning in 2 populations of barbados zenaida doves (zenaida aurita). one population (st. james) is territorial; it competes aggressively with conspecifics but scramble competes with heterospecifics. the other population (deep water harbour) forages in large homospecific flocks. field observations were conducted to quantify intraspecific and interspecific patterns of foraging association and aggression. wild-caught doves from both areas were then teste ...19968851552
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