Tamias panamintinus

Habitat Interaction Between Two Species of Chipmunk in the Basin and Range Province of Nevada

“…2). Our GLM analyses of habitat use between these 2 species confirmed the greater use of fir trees by T. palmeri (Deacon et al 1964, Best 1993 and the greater use of pinyon pine and large rocks by T. panamintinus (Best et al 1994; overall model: F 4, 187 = 73.33, P ≤ 0.001; Table 3). Using data occurring only within the overlap zone (144 T. palmeri and 64 T. panamintinus), interaction terms indicated that, relative to T. palmeri, T. panamintinus was more likely to be near large rocks and southerly facing aspects and less likely to be near fir trees within the pinyon/ponderosa mixed forest (Table 4).…”

“…2), location data indicated that Tamias palmeri and T. panamintinus remain generally well separated within the Spring Mountains. Compared to random points not constrained to the overlap zone, T. panamintinus demonstrated a preference for pinyon/ponderosa mixed forest habitats at the upper elevation range of the pinyon forests (Best et al 1994). However, when we constrained the analyses to the species overlap 2013] CHIPMUNK HABITAT INTERACTION 133 zone within presence of T. palmeri in the interaction analyses, no such preference was found, and T. panamintinus was more likely found outside these mixed ponderosa areas in exclusively pinyon pine habitat associations.…”

“…Tamias palmeri and Tamias panamintinus are isolated species with overlapping distributions on the Spring Mountains of southern Nevada. Tamias palmeri occurs from approximately 2200 m to above 3000 m in elevation (Best 1993), while T. panamintinus occurs below 2500 m to approximately 1230 m (Best et al 1994). Tamias palmeri occurrence is associated with the lower slopes of fir (Abies concolor) forest and proximity to water, and in this species, population size and survival increases with increasing density of shrub species (Ribes cereum) (Lowrey and Longshore in review).…”

“…Tamias palmeri occurrence is associated with the lower slopes of fir (Abies concolor) forest and proximity to water, and in this species, population size and survival increases with increasing density of shrub species (Ribes cereum) (Lowrey and Longshore in review). Tamias panamintinus has been associated with singleleaf pinyon (Pinus monophylla) and juniper ( Juniperus osteosperma) forests (Best et al 1994). Tamias panamintinus has been found at elevations up to 3000 m (Best et al 1994); however, it is not found at these elevations in the Spring Mountains (Deacon et al 1964).…”

“…Tamias panamintinus has been associated with singleleaf pinyon (Pinus monophylla) and juniper ( Juniperus osteosperma) forests (Best et al 1994). Tamias panamintinus has been found at elevations up to 3000 m (Best et al 1994); however, it is not found at these elevations in the Spring Mountains (Deacon et al 1964).…”