Nelson coati

Nelson coati
Systematics
Order :	Predators (Carnivora)
Subordination :	Canine (Caniformia)
Superfamily :	Marten relatives (Musteloidea)
Family :	Small bears (Procyonidae)
Genre :	Coatis ( nasua )
Type :	Nelson coati
Scientific name
	Nasua nelsoni
	Merriam , 1901

The Nelson coati , also known as the island or Cozumel coati ( Nasua nelsoni ) is a species of predator belonging to the small bear family (Procyonidae). Nelson coatis are on the island of Cozumel , which the Mexican peninsula of Yucatán is upstream, endemic .

features

The Nelson coati is similar to the white-nosed coati , but differs in its short, quite soft, silky fur and its significantly smaller size, which is a form of island dwarfing . The Nelson coati, however, overlapping the size of the mainland animals, reaches a total length of 74 to 78 centimeters, while the animals on the mainland reach a length of more than 1 meter. Its fur is dark reddish brown and somewhat grayish, the tail is not banded.

Distribution map of the Nelson coati

Way of life

Little is known about their way of life, it seems to be similar to the way of life of the white-nosed coati .

Danger

The Nelson coati is very rare. The IUCN listed it as endangered in 1996 (Endangered, EN), but due to taxonomic changes - the IUCN now classifies the Nelson coati as a subspecies of the white-nosed coati - it is no longer listed separately in the 2008 Red List of Endangered Species . Drafts for submission to the IUCN list the species as critically endangered (CR) for the time being.

Cozumel is in the main zone of tropical cyclones, so hurricanes are the main type of natural disturbance. The Nelson coati has no natural enemies, but it can be killed by feral dogs. The introduction of alien species such as idol snakes , house mice and rats as well as feral dogs and cats as predators, competitors and disease carriers are a problem. The Nelson coati is further through introgression and transmission effects of pathogens and diseases from introduced white-nosed coatis, by catching for the keeping of pets, endangered by population growth and growing tourism. As the road network is expanded, animals are run over, habitat is lost and fragmented .

Taxonomy

The taxonomic status of this species is controversial. In addition to Merriam, Jones and Lawlor (1965) considered the Nelson coati to be a separate species due to its smaller size. Hall (1981) and others also saw the Nelson coati as a species of their own. Glatston (1994) agreed but pointed out suggests that some scientists believe it was a population that was brought to the island by the Maya . For Decker (1991) it is a subspecies of the white-nosed coati ( Nasua narica nelsoni ) after comparisons with mainland specimens . Since molecular data, combined with morphological studies, indicate species status, Cuarón et al. (2004, 2009) classify the Nelson coati as a separate species until reliable data are available.

Individual evidence

↑ ^a ^b ^c ^d Alfredo D. Cuarón, Miguel Angel Martínez-Morales, Katherine W. Mcfadden, David Valenzuela, Matthew E. Gompper: The status of dwarf carnivores on Cozumel Island, Mexico. Biodiversity & Conservation 13 (2), February 2004; Pp. 317-331. doi : 10.1023 / B: BIOC.0000006501.80472.cc , full text
^ ^A ^b ^c Ronald M. Nowak: Walker's Carnivores of the World. Johns Hopkins University Press, 2005, ISBN 978-0801880339 , pp. 136-137.
^ Fiona Reid: A Field Guide to the Mammals of Central America and Southeast Mexico. Oxford University Press 2009, ISBN 978-0195343229 , p. 266.
↑ ^a ^b ^c ^d Alfredo D. Cuarón et al. : Conservation of the endemic dwarf carnivores of Cozumel Island, Mexico. In: Small Carnivore Conservation , 2009, Vol. 41, pp. 15-21. ( Online )
↑ 1996 IUCN Red List of Threatened Animals. P. 17.
↑ Jerrold L. Belant, Jan Schipper, James Conroy: The conservation status of small carnivores in the Americas. In: Small Carnivore Conservation 2009, Vol. 41: pp. 3–8. ( Online ( Memento from December 9, 2014 in the Internet Archive ))

Web link

Nasua narica in the endangered Red List species the IUCN 2016 Posted by: AD Cuarón, K. slipway, F. Reid, J. Pino, JF Gonzalez Maya, 2015. Accessed August 20, 2017th

[Cuarón_et_al_2004-1] Alfredo D. Cuarón, Miguel Angel Martínez-Morales, Katherine W. Mcfadden, David Valenzuela, Matthew E. Gompper: The status of dwarf carnivores on Cozumel Island, Mexico. Biodiversity & Conservation 13 (2), February 2004; Pp. 317-331. doi : 10.1023 / B: BIOC.0000006501.80472.cc , full text

[Nowak-2] A ^b ^c Ronald M. Nowak: Walker's Carnivores of the World. Johns Hopkins University Press, 2005, ISBN 978-0801880339 , pp. 136-137.

[Reid-3] Fiona Reid: A Field Guide to the Mammals of Central America and Southeast Mexico. Oxford University Press 2009, ISBN 978-0195343229 , p. 266.

[Cuarón_et_al_2009-4] Alfredo D. Cuarón et al. : Conservation of the endemic dwarf carnivores of Cozumel Island, Mexico. In: Small Carnivore Conservation , 2009, Vol. 41, pp. 15-21. ( Online )

[IUCN_1996-5] 1996 IUCN Red List of Threatened Animals. P. 17.

[Belant_Schipper_Conroy-6] Jerrold L. Belant, Jan Schipper, James Conroy: The conservation status of small carnivores in the Americas. In: Small Carnivore Conservation 2009, Vol. 41: pp. 3–8. ( Online ( Memento from December 9, 2014 in the Internet Archive ))