cuban crocodile population

"Wild Cuban crocodiles hybridize with American crocs." The total population in the Zapata Swamp (the main and perhaps only area in which the crocodile occurs) was recently estimated to be between 3000 … ScienceDaily. Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. The Cuban crocodile is one of the most threatened New World crocodilian species, primarily because it has such a small and restricted distribution (the smallest of any species, with the possible exception of A. sinensis). Yoamel Milián-García, Miryam Venegas-Anaya, Roberto Frias-Soler, Andrew J. Crawford, Roberto Ramos-Targarona, Roberto Rodríguez-Soberón, Manuel Alonso-Tabet, John Thorbjarnarson, Oris I. Sanjur, Georgina Espinosa-López, Eldredge Bermingham. Status of crocodile populations. The Zapata Swamp located in the northwest region of Havana is a known habitat that preserves a minor population of the Cuban crocodile. "Wild Cuban crocodiles hybridize with American crocs." ScienceDaily. Content on this website is for information only. WCS is grateful to the John D. and Catherine T. MacArthur Foundation and the Christopher Reynolds Foundation for supporting critical conservation work in Cuba. Based on evidence of hybridization between the two species, the authors strongly urge that efforts to avoid anthropogenic causes of hybridization be taken into account for future management plans of Cuban crocodiles. Wildlife Conservation Society. There, American crocodiles and Cuban crocodiles are interbreeding, producing hybrids and leading to the loss of the Cuban crocodile's genetic integrity. Although the species is recovering in numbers, its … Octopus-Inspired Sucker Transfers Delicate ... 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A new genetic study confirms that American crocodiles are hybridizing with wild populations of critically endangered Cuban crocodiles, which may cause a population … Note: Content may be edited for style and length. . According to the University of Michigan (Museum of Zoology), the total population size of this species is around 3,000-6,000 individuals. The authors say that hybridization may be one of the most important threats to Cuban crocodiles, along with illegal hunting and habitat modification. The study, which appears in the April 2011 issue of the Journal of Experimental Zoology, is by Yoamel Milián-García of the University of Havana; Miryam Venegas-Anaya of the Smithsonian Tropical Research Institute; Roberto Frias-Soler of the University of Havana; Andrew Crawford of the Smithsonian Tropical Research Institute; Roberto Ramos-Targarona, Roberto Rodríguez-Soberón, and Manuel Alonso-Tabet of Empresa Nacional para la Protección de la Flora y la Fauna; the late John Thorbjarnarson of the Wildlife Conservation Society; Oris I. Sanjur of the Smithsonian Tropical Research Institute; Georgina Espinosa-López of the University of Havana; and Eldredge Bermingham of the Smithsonian Tropical Research Institute. Hybridization can result in both replacement and genetic mixing, and one lineage may cause the extinction of another. Active measures are underway to ensure this population remains well protected but a further important conservation priority is the establishment of an alternative wild population (5). The species was extensively hunted from the middle of the 19th century through the 1960s resulting in drastic population declines. Or view hourly updated newsfeeds in your RSS reader: Keep up to date with the latest news from ScienceDaily via social networks: Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. ScienceDaily, 22 June 2011. IUCN Red List Status of the living crocdilians. A new genetic study by a team of Cuban and American researchers confirms that American crocodiles are hybridizing with wild populations of critically endangered Cuban crocodiles, which may cause a population decline of this species found only in the Cuban Archipelago. The Cuban crocodile is listed as critically endangered owing to the effects of illegal hunting, habitat modifications, small population size and limited knowledge of species biology.

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