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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 ...
New population of critically endangered raptor discovered in Haiti
(2021)
Since the last recorded sighting in 1962, Ridgway’s Hawk was unknown from Haiti and was presumed extirpated. But, in August 2019, colleagues from the Haitian conservation organization, JACSEH (Jeunes en Action Pour la ...
Observation of geophagy by Hispaniolan Crossbill (Loxia megaplaga) at an abandoned bauxite mine
(2012)
Abstract: I report an observation of endangered Hispaniolan Crossbill (Loxia megaplaga) feeding on soils near abandoned bauxite mines in the Sierra de Bahoruco, Dominican Republic. Although geophagy has been widely reported ...
A hierarchical analysis of nesting and foraging habitat for the conservation of the Hispaniolan White-winged crossbill (Loxia leucoptera megaplaga)
(2000)
Little is known about habitat use by the endemic Hispaniolan White-winged crossbill (Loxia leucoptera megaplaga), in part because of its small population size and wandering tendencies; before this study only a single nest ...
A birding trip to the Dominican Republic and Puerto Rico
(2001)
Abstract — During a birding trip to the Dominican Republic and Puerto Rico, 20 September to 4 October 1999, 25 of the 26 endemics of Hispaniola and all of the 16 endemic species of Puerto Rico were observed. In all, we ...
Carry-over effects provide linkages across the annual cycle of a Neotropical migratory bird, the Louisiana Waterthrush Parkesia motacilla
(2015)
Population limitation models of migratory birds have sought to include impacts from events across the full annual cycle. Previous work has shown that events occurring in winter result in some individuals transitioning to ...
Avian community characteristics and demographics reveal how conservation value of regenerating tropical dry forest changes with forest age
(2018)
Expansion of secondary forests following the abandonment of agriculture may have important implications for bird conservation, but few studies have examined the dynamics of this process. We studied bird use of a chronosequence ...
Life-stage and sex influence Philornis ectoparasitism in a Neotropical woodpecker Melanerpes striatus with essential male parental care
(2023)
The nestlings of many Neotropical bird species suffer from Philornis (Diptera: Muscidae) ectoparasitism. Although nestlings are typically considered the intended targets, recent work indicates that Philornis infest adult ...
Predation of a Golden Swallow (Tachycineta euchrysea) nest by the Indian mongoose (Herpestes javanicus) in the Sierra de Bahoruco, Dominican Republic
(2006)
Abstract: Golden Swallows (Tachycineta euchrysea) have recently been observed nesting on or near the ground. In May 2004 I observed an introduced Indian mongoose (Herpestes javanicus) enter a recently depredated Golden ...