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Now showing items 31-39 of 39
First record of a Mississippi Kite (Ictinia mississippiensis) in the Dominican Republic
(2014)
Abstract: The Mississippi Kite (Ictinia mississippiensis) is a long distance migrant that breeds in North America and winters in South America. During fall and spring migration, they congregate in large flocks and follow ...
Colonization of Hispaniola by Margarops fuscatus Vieillot (Pearly-eyed Thrasher)
(2019)
Margarops fuscatus (Pearly-eyed Thrasher) is the Caribbean’s premier avian supertramp. Concurrent with urban development, it continues to expand its geographical and habitat range throughout the region, especially in the ...
Population genetics and relatedness in a critically endangered island raptor, Ridgway's Hawk Buteo ridgwayi
(2013)
Many island avian populations are of conservation interest because they have a higher risk of extinction than mainland populations. Susceptibility of island birds to extinction is primarily related to human induced change ...
Breeding ecology and predictors of nest success in the Critically Endangered Ridgway’s Hawk Buteo ridgwayi
(2015)
Ridgway’s Hawk Buteo ridgwayi is a Critically Endangered forest raptor endemic to the island of Hispaniola in the Caribbean. The species is currently limited to a small area on the north-east coast of the island, with fewer ...
Nestling sex ratio in a critically endangered dimorphic raptor, Ridgway's Hawk (Buteo ridgwayi)
(2013)
[English] Variation in nestling sex ratio is an important concept in population ecology, and has particular implications for the conservation status of small populations. Research on species exhibiting Reversed Sexual Size ...
Social and genetic mating system of Ridgway's hawk (Buteo ridgwayi), an endemic raptor on Hispaniola
(2013)
Patterns of social organization and mating systems have been shown to be functions of ecological factors such as resource allocation and breeding density. In some species, particularly birds, social organization and genetic ...
Food habits of the endemic ashy-faced owl (Tyto glaucops) and recently arrived barn owl (T. alba) in Hispaniola
(2010)
The Ashy-faced Owl (Tyto glaucops) is endemic to Hispaniola, where the Barn Owl (T. alba) became established after ca. 1950. I examined 8322 vertebrate prey of the two species, using regurgitated pellets and prey remains ...
A preliminary report of ongoing research of the ecology of Black-capped Petrel (Pterodroma hasitata) in Sierra de Bahoruco, Dominican Republic – I: GPS tracking of breeding adults
(2019)
In the spring of 2018, we studied the foraging ecology of the Black-capped Petrel. The goal of this project was to gather fine-scale data on individual movements of Black-capped Petrels breeding in the Sierra de Bahoruco, ...
Historical demography of bird populations from Hispaniola assessed by nuclear and mitochondrial gene sequences
(2015)
Molecular markers can be used to infer the demographic history of a given species, but many historic processes simultaneously impact multiple species. Thus, comparative historical demography has the potential to provide ...