|Scientific Name:||Pennatomys nivalis|
|Species Authority:||Turvey, Weksler, Morris & Nokkert, 2010|
|Red List Category & Criteria:||Extinct ver 3.1|
|Assessor/s:||Turvey, S.T. & Collen, B.|
|Reviewer/s:||Wilson, D.E. & Amori, G.|
The Nevis Rice Rat has never been definitely reported extant during the European historical period. However, it is known to have survived until almost immediately prior to European arrival in the Caribbean, suggesting strongly that pre-Columbian human impacts did not cause its disappearance and that it persisted into the historical period. Several reports of rats being eaten on Nevis and St. Kitts, in one instance of animals specifically described as “unusual-looking” (i.e. suggesting a difference from introduced black rats), have been reported from the seventeenth, eighteenth, and twentieth centuries, until the 1930s, and may well represent this species. However, several weeks of survey work in 2009 (involving live trapping with Sherman and Tomahawk traps) at various elevations in the forests of Nevis Peak found no evidence of the Nevis Rice Rat’s continued survival, and instead discovered very high densities of invasive mongoose and black rats throughout the island’s forests (Turvey unpublished data). The species is therefore assessed as Extinct.
|Range Description:||The Nevis Rice Rat formerly occurred on the three main islands of the Saint Kitts Bank (Nevis, Saint Kitts and Saint Eustatius). It has been recorded from numerous pre-Columbian zooarchaeological sites, as it constituted a major component of the diet of prehistoric Amerindians.|
Regionally extinct:Netherlands Antilles; Saint Kitts and Nevis
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||This species is now extinct.|
|Habitat and Ecology:||Nothing is known about this species’ habitat or ecology. This island rice rat was about the same size as a black rat, and therefore much smaller than Megalomys, the other recently extinct endemic insular Caribbean rice rat genus.|
|Major Threat(s):||The cause of extinction of the Nevis Rice Rat is unknown. However, its survival until the European historical era suggests that its extinction may have been driven by predation or competition with invasive mammals, probably introduced black rats or mongoose.|
|Conservation Actions:||This species is Extinct.|
Harlow, V.T. 1925. Colonising expeditions to the West Indies and Guiana, 1632-1667. London: The Hakluyt Society., London.
IUCN. 2011. IUCN Red List of Threatened Species (ver. 2011.2). Available at: http://www.iucnredlist.org. (Accessed: 10 November 2011).
Merrill, G.C. 1958. The historical record of man as an ecological dominant in the Lesser Antilles. Canadian Geographer 3: 17-22.
Turvey, S.T., Weksler, M., Morris, E.L. and Nokkert, M. 2010. Taxonomy, phylogeny and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species. Zoological Journal of the Linnean Society 160: 748-772.
|Citation:||Turvey, S.T. & Collen, B. 2011. Pennatomys nivalis. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 08 December 2013.|
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