Merriam's Pocket Gopher (Cratogeomys merriami) lives in grassland prairies across Southwestern North America. Its conservation status is Least Concern.
Fascinating facts about the Merriam's Pocket Gopher
- Merriam's pocket gopher is endemic to Mexico, occurring only in the Valley of Mexico and the Valley of Toluca. Within those basins it lives at elevations ranging from 1800 to 4000 m, a range that confines it to high-altitude environments. This limited distribution means the species is found solely in those specific mountain valleys and nowhere else in the world. Its presence is therefore tightly linked to the geography and climate of those regions.
- The gopher favours the high-altitude Zacatonal grassland and temperate pine-oak woodlands. It also makes use of nearby farmland and rangeland, showing flexibility in habitat choice beyond natural vegetation. By occupying both natural and cultivated areas, it can exploit a variety of soil types for burrowing and foraging. This habitat breadth helps the species persist across its patchy range despite human land use.
- Its chromosome complement consists of 36 chromosomes, with a fundamental number of 68. The specific chromosome count distinguishes it from closely related gophers that were once grouped together. Such chromosomal data were part of the evidence used to separate former subspecies into distinct taxa.
- Until 2005 the gopher encompassed two groups that are now recognised as separate species, C. fulvescens and C. perotensis. Molecular, chromosomal and morphological evidence prompted taxonomists to split them from this taxon.
- The species bears the name of American mammalogist Clinton Hart Merriam, with the specific epithet merriami honouring him. This naming acknowledges his contributions to the study of mammals in North America. By carrying his name, the gopher's scientific designation serves as a lasting tribute to his work in the field of mammalogy.
Sources
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At a glance
RangeSouthwestern North America
HabitatGrassland prairies
DietGrass and roots
About the Merriam's Pocket Gopher
In the sun-baked expanses of the American West, a secretive and industrious creature stirs, its paws barely disturbing the dusty earth as it tunnels through the underground world with purposeful intent. The Merriam's pocket gopher, a master excavator, moves unseen, its compact body and powerful claws sculpting a labyrinthine network of burrows that crisscross the landscape like a hidden metropolis. As it digs, this unassuming engineer inadvertently shapes the very fabric of its ecosystem, creating pathways for water and air that sustain a multitude of other creatures in this arid realm.
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