Friday, June 5, 2015

Prairie Dog Companion

PRARIE DOG COMPANION
Brynn Cummings


Species: Prairie Dog - Cynomys ludovicianus
Status: Threatened


http://animals.nationalgeographic.com/animals/mammals/prairie-dog/
Description and Ecology of Organism:

Prairie dogs are members of the Sciuridae family along with other rodents such as squirrels, chipmunks, and marmots. There are five other species of prairie dogs and all are native to North America. Of two subgenera of prairie dog (white-tailed and black-tailed), Utah prairie dogs are part of the white-tailed group. The Utah prairie dog’s color is cinnamon to dark buffy cinnamon mixed with small amounts of buff or blackish hairs. Prairie dogs live in underground burrows, extensive warrens of tunnels and chambers marked by many mounds of packed earth at their surface entrances. Burrows have defined nurseries, sleeping quarters, and even toilets (http://animals.nationalgeographic.com)!


Geographic and Population changes:

Genetic variance within Utah prairie dog populations is very low – less than half than what is commonly observed for black tailed prairie dogs. This may be the result of genetic drift in small populations (www.fws.gov).

Cause of Listing and Main Threats to Continued Existence:

·     Habitat loss and fragmentation
http://animals.nationalgeographic.com/animals/mammals/prairie-dog/
·     Plague
·     Changing climatic conditions
·     Unauthorized take
·     Disturbance from recreational and economic land uses (www.fws.gov)

Utah prairie dogs prefer swale-type formations where moist herbaceous vegetation is available even during drought periods. They like to eat grasses and forbs during all seasons, and seem to select specific food groups based on plant type, not just availability. For this reason, vegetation quality and quantity are important in helping Utah prairie dogs survive hibernation, lactation, and other high nutrient demand times (http://animals.nationalgeographic.com). Plant species richness is correlated with increased weight gain, higher juvenile to adult ratios, and higher animal densities. Utah prairie dogs will avoid areas where brushy species dominate, and will eventually decline or disappear in areas invaded by (http://animals.nationalgeographic.com). Open habitats are important for foraging, visual surveillance to escape predators, and intraspecific interactions. Well-drained, deep soils are needed for burrowing. Burrows provide the prairie dog with protection from predators and insulation from environmental extremes. Soil color may aid in disguising prairie dogs from surface predators and thus may be an added survival factor (www.fws.gov).

Recovery Plan:

http://animals.nationalgeographic.com/animals/mammals/prairie-dog/
The recovery of Utah prairie dogs will rely on effective conservation responses to the issues facing the species, which remain varied and complex. These issues include plague, urban expansion, overgrazing, cultivated agriculture, vegetation community changes, invasive plants, off-highway vehicle and recreation uses, climate change, energy resource exploration and development, fire management, poaching, and predation (www.fws.gov). Strategically, these issues can be reduced to two overriding concerns: loss and fragmentation of habitat, and plague. Our recovery strategy for the Utah prairie dog focuses on the need to address habitat loss and fragmentation and disease through a program that encompasses threats abatement, population management, research, and monitoring. We emphasize conserving extant colonies, many of which occur on non-Federal lands; establishing additional colonies on Federal and non-Federal lands via habitat improvement or translocations; controlling the transmission of plague; and monitoring habitat conditions(www.fws.gov).

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