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The Michoacan pocket gopher
Michoacan pocket gopher
( Zygogeomys
Zygogeomys
trichopus) is a species of rodent in the family Geomyidae.[2] It is monotypic within the genus Zygogeomys.[3] It is endemic to Mexico
Mexico
where its natural habitat is temperate, high-altitude forests. Its numbers are declining and it is listed by the IUCN
IUCN
as "endangered".[1]

Contents

1 Description 2 Distribution and habitat 3 Natural history 4 Status 5 References

Description[edit] The Michoacan pocket gopher
Michoacan pocket gopher
is a small animal with short, dense, black, lustrous fur and a hairless tail. The eyes are small and deep-set and there is a pad-like region of bare skin just behind the nostrils. It is docile when caught, making no attempt to bite as do other pocket gophers.[4] Distribution and habitat[edit] The Michoacan pocket gopher
Michoacan pocket gopher
is endemic to the Trans-Mexican Volcanic Belt mountain range in central southern Mexico, where it occurs in four discrete locations near west of Lake Pátzcuaro at altitudes over 2,200 metres (7,200 ft).[1][3] The fossil record shows that members of the genus Zygogeomys, including two other now extinct species, were widespread in the late Pliocene
Pliocene
epoch in the southwestern United States. Its typical habitat is mixed forests of spruce, pine, and alder with deep friable soil suitable for burrowing. A number of small populations separated by unsuitable terrain exist. The species shows little genetic variation and the present population may be a relict of a previous, more widespread distribution.[3] Natural history[edit] The Michoacan pocket gopher
Michoacan pocket gopher
lives in a burrow and throws up a characteristic, cone-shaped mound of soil on the surface with no visible entrance. A central chamber has been found 2 m (6 ft 7 in) underground and may be where the young are raised. Little is known of the animal's breeding habits, which may be seasonal, as males caught in March and August had small testes while one caught in December had large ones. A pregnant female containing one embryo has been caught in December.[3] This animal is seldom caught in surface traps[3] and it may live and forage almost entirely underground.[4] In its natural habitat of Michoacán, the pocket gopher has been reported to cause damage to avocado trees and mutilate young trees in reforestation projects, as well as wreak structural damage on roads, building sites, and irrigation canals.[5] Status[edit] The habitat requirements of the Michoacan pocket gopher
Michoacan pocket gopher
are very specific, and where agriculture replaces the native woodland in which it lives, it is restricted to higher altitudes and tends to be replaced by other species of pocket gopher (Pappogeomys).[6] Its total area of occurrence is less than 5,000 km2 (1,900 sq mi), its range is fragmented, and its population is declining, and the IUCN
IUCN
has listed it as "endangered".[1] References[edit]

^ a b c d Álvarez-Castañeda, S.T.; Castro-Arellano, I.; Lacher, T.; Vázquez, E.; Arroyo-Cabrales, J. (2008). " Zygogeomys
Zygogeomys
trichopus". The IUCN Red List
IUCN Red List
of Threatened Species. IUCN. 2008: e.T23323A9431919. doi:10.2305/IUCN.UK.2008.RLTS.T23323A9431919.en. Retrieved 6 January 2018.  ^ Patton, J.L. (2005). "Family Geomyidae". In Wilson, D.E.; Reeder, D.M. Mammal
Mammal
Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 870. ISBN 978-0-8018-8221-0. OCLC 62265494.  ^ a b c d e Hafner, Mark S.; Barkley, Linda J. (1984). "Genetics and Natural History of a Relictual Pocket Gopher, Zygogeomys
Zygogeomys
(Rodentia: Geomyidae)". Journal of Mammalogy. 65 (3): 474–479. doi:10.2307/1381094. JSTOR 1381094.  ^ a b Hafner, Mark S.; Hafner, John C. (1982). "Structure of Surface Mounds of Zygogeomys
Zygogeomys
(Rodentia: Geomyidae)". Journal of Mammalogy. 63 (3): 536–538. doi:10.2307/1380465. JSTOR 1380465.  ^ Whisson, Desley (1994). "The Pocket Gopher as a Pest in Mexico". Proceedings – Vertebrate Pest Conference. University of Wisconsin at Madison. 16: 151.  ^ Mares, Michael A.; Schmidly, David J. (1991). Latin American Mammalogy: History, Biodiversity, and Conservation. University of Oklahoma Press. p. 182. ISBN 0806123435. 

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Extant species of family Geomyidae
Geomyidae
(Pocket gophers)

Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Rodentia Suborder: Castorimorpha Superfamily: Geomyoidea

Cratogeomys

Yellow-faced pocket gopher
Yellow-faced pocket gopher
(C. castanops) Oriental Basin pocket gopher
Oriental Basin pocket gopher
(C. fulvescens) Smoky pocket gopher
Smoky pocket gopher
(C. fumosus) Merriam's pocket gopher
Merriam's pocket gopher
(C. merriami) Perote pocket gopher
Perote pocket gopher
(C. perotensis) Flat-headed pocket gopher (C. planiceps)

Geomys (Eastern pocket gophers)

Desert pocket gopher
Desert pocket gopher
(G. arenarius) Attwater's pocket gopher
Attwater's pocket gopher
(G. attwateri) Baird's pocket gopher
Baird's pocket gopher
(G. breviceps) Plains pocket gopher
Plains pocket gopher
(G. bursarius) Knox Jones's pocket gopher
Knox Jones's pocket gopher
(G. knoxjonesi) Texas pocket gopher
Texas pocket gopher
(G. personatus) Southeastern pocket gopher
Southeastern pocket gopher
(G. pinetis) Central Texas pocket gopher
Texas pocket gopher
(G. texensis) Tropical pocket gopher
Tropical pocket gopher
(G. tropicalis)

Orthogeomys

Chiriqui pocket gopher
Chiriqui pocket gopher
(O. cavator)

Cherrie's pocket gopher
Cherrie's pocket gopher
(O. cherriei) Oaxacan pocket gopher
Oaxacan pocket gopher
(O. cuniculus) Darien pocket gopher
Darien pocket gopher
(O. dariensis) Giant pocket gopher
Giant pocket gopher
(O. grandis) Variable pocket gopher
Variable pocket gopher
(O. heterodus) Hispid pocket gopher
Hispid pocket gopher
(O. hispidus) Big pocket gopher
Big pocket gopher
(O. lanius) Nicaraguan pocket gopher
Nicaraguan pocket gopher
(O. matagalpae) Thaeler's pocket gopher
Thaeler's pocket gopher
(O. thaeleri) Underwood's pocket gopher
Underwood's pocket gopher
(O. underwoodi)

Pappogeomys

Alcorn's pocket gopher
Alcorn's pocket gopher
(P. alcorni) Buller's pocket gopher
Buller's pocket gopher
(P. bulleri)

Thomomys (Smooth-toothed pocket gophers)

Subgenus Megascapheus

Botta's pocket gopher
Botta's pocket gopher
(T. bottae) Camas pocket gopher
Camas pocket gopher
(T. bulbivorus) Townsend's pocket gopher
Townsend's pocket gopher
(T. townsendii) Southern pocket gopher
Southern pocket gopher
(T. umbrinus)

Subgenus Thomomys

Wyoming pocket gopher
Wyoming pocket gopher
(T. clusius) Idaho pocket gopher
Idaho pocket gopher
(T. idahoensis) Mazama pocket gopher
Mazama pocket gopher
(T. mazama) Mountain pocket gopher
Mountain pocket gopher
(T. monticola) Northern pocket gopher
Northern pocket gopher
(T. talpoides)

Zygogeomys

Michoacan pocket gopher
Michoacan pocket gopher
(Z. trichopus)

Category

Taxon identifiers

Wd: Q973229 ADW: Zygogeomys EoL: 1019950 GBIF: 2439380 ITIS: 625222 IUCN: 23323 MSW: 12

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