> Cryptotis nelsoni
Cryptotis nelsoni (Nelson's Small-eared Shrew)
Nelson's small-eared shrew (Cryptotis nelsoni) is a species of mammal in the family Soricidae. It is endemic to eastern Mexico.The species was discovered by Edward William Nelson and Edward Alphonso Goldman in 1894, who collected a number of specimens from the slopes of the San Martín volcano in Veracruz, Mexico. The species was then not recorded again, and thought by many to be extinct, until being rediscovered in the same area in 2004 (as described in 2009). Its biology is essentially unknown.
This medium-sized shrew is thought to be endemic to the forested slopes of a small volcano in southern Mexico. It was discovered in 1894, but not seen again for more than a century, leading researchers to fear it had gone extinct. However, in 2003, two researchers set out to search for the species in the same region from which it was first discovered. Their expedition met with success, and they found three individuals in the vicinity of the type locality. Although good news for the species, the researchers discovered that the species tiny range is under pressure from human activities, including logging, cattle grazing, induced fires and agriculture. Urgent conservation action is needed if this Critically Endangered shrew is to survive.
Uniqueness Scale: Similiar (0)
Uniqueness & Vulnerability Scale: Similiar & Secure (0)
Unique & Vulnerable (100)
ED Score: 9.45
EDGE Score: 5.12
|Top 100 Endangered  ||Yes|
Alliance for Zero Extinction (AZE) Sites
Protected Areas provided by Le Saout, S., Hoffmann, M., Shi, Y., Hughes, A., Bernard, C., Brooks, T.M., Bertzky, B., Butchart, S.H.M., Stuart, S.N., Badman, T. & Rodrigues, A.S.L. (2013) Protected areas and effective biodiversity conservation
. Science, 342, 803–805