Effects of Rain on Palm Springs Ground Squirrel Occupancy in the Sonoran Desert

Autor: Paul F. Doherty, Stacey D. Ostermann-Kelm, Matthew W. McDonald, Lianne C. Ball
Rok vydání: 2010
Předmět:
Zdroj: Journal of Wildlife Management. 74:954-962
ISSN: 1937-2817
0022-541X
DOI: 10.2193/2008-568
Popis: Long-term monitoring programs must use informative yet cost-effective methods. Occupancy estimates that incorporate detection probabilities are used with increasing frequency to describe species status and make management recommendations. Estimating changes in the occupancy of points over time in response to management actions or environmental changes may be especially useful for management of the Palm Springs round-tailed ground squirrel (Spermophilus tereticaudus chlorus), a subspecies covered under the Coachella Valley Multiple Species Habitat Conservation Plan and Natural Community Conservation Plan. In 2002 and 2003, we estimated occupancy and detection probability of ground squirrels across lands modeled as ground squirrel habitat by the Scientific Advisory Committee for the Habitat Conservation Plan and tested a priori hypotheses about how occupancy varied among vegetation and substrate types. In the 2003 study, we asked whether these associations were affected by winter rains after the 20...
Databáze: OpenAIRE