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- Title
CRYPTIC SPECIES IN THE MEXICAN POCKET GOPHER CRATOGEOMYS MERRIAMI.
- Authors
Hafner, Mark S.; Light, Jessica E.; Hafner, David J.; Brant, Sara V.; Spradling, Theresa A.; Demastes, James W.
- Abstract
A study of chromosomal variation in the Mexican pocket gopher Cratogeomys merriami revealed differences in diploid number that correspond to 3 major genetic and morphological clades within the species. Each of these 3 clades is diagnosable based on multiple characters, including chromosomal diploid number, quantitative and qualitative morphological characters, and mitochondrial DNA. Accordingly, we restrict the name C. merriami (Thomas) to include only pocket gophers of this genus from the states of México, México D.F., northern Morelos, and west-central Puebla. We resurrect the species name C. fulvescens Merriam to represent members of this genus from southern Tlaxcala, east-central Puebla, and parts of west-central Veracruz. Finally, we resurrect the species name C. perotensis Merriam to represent members of this genus from southern Hidalgo, northern Tlaxcala, north-central Puebla, and parts of west-central Veracruz. Based on the observation that differences in diploid number usually signal reproductive isolation between populations of pocket gophers, we hypothesize that C. merriami, C. fulvescens, and C. perotensis are reproductively incompatible. We provide synonymies and descriptions for these 3 species, along with a key to the C. castanops species group to which these species belong.
- Subjects
PAPPOGEOMYS; POCKET gophers; ANIMAL genetics; MITOCHONDRIAL DNA; ANIMAL morphology
- Publication
Journal of Mammalogy, 2005, Vol 86, Issue 6, p1095
- ISSN
0022-2372
- Publication type
Article
- DOI
10.1644/05-MAMM-A-064R1.1