BREEDING AND NATAL DISPERSAL IN THE PUERTO-RICAN VIREO

Citation
Bl. Woodworth et al., BREEDING AND NATAL DISPERSAL IN THE PUERTO-RICAN VIREO, Journal of field ornithology, 69(1), 1998, pp. 1-7
Citations number
23
Categorie Soggetti
Ornithology
ISSN journal
02738570
Volume
69
Issue
1
Year of publication
1998
Pages
1 - 7
Database
ISI
SICI code
0273-8570(1998)69:1<1:BANDIT>2.0.ZU;2-S
Abstract
Information on dispersal is critical for understanding the population dynamics of birds. We estimated breeding and natal dispersal in two st udies of a population of;he Puerto Rican Vireo (Vireo latimeri) that i s in danger of local extirpation due to low reproductive success. From 7.1-29% of adult males and 12.5-25% of adult females changed territor ies between breeding seasons. The median breeding dispersal distance o f 12 birds (7 males, 2 females, and 3 of unknown sex) was 370 m (range 110-560 m). Four fledglings dispersed a median distance of 490 m from their natal nests to breeding territories (range 300-2030 m). The imp lications of these data for population trends of the vireo in Guanica Forest are discussed.