International Scholarly Research Notices

Research Article

Swift Foxes and Ideal Free Distribution: Relative Influence of Vegetation and Rodent Prey Base on Swift Fox Survival, Density, and Home Range Size

Table 2

Estimates of population density (±SE) and survival rates (±SE) for adult swift foxes on 6 sites in southeastern Colorado, 2001–2004.

Site		DensityAnnual  
survival		Seasonal survival rates
BreedingPup rearingDispersal
PRV0.18 (0.10)0.540.81 (0.09)0.83 (0.08)0.81 (0.09)
COM0.04 (0.05)0.920.92 (0.08)1.0 (0.0)1.0 (0.0)
BTS0.11 (0.08)0.540.84 (0.08)0.78 (0.10)0.82 (0.08)
PRN0.09 (0.06)0.540.73 (0.11)0.94 (0.06)0.79 (0.09)
RRK0.05 (0.03)0.500.80 (0.18)0.83 (0.15)0.75 (0.22)
BNT¹0.03 (0.05)————
 1Throughout the study, only one animal remained and/or survived on the Bent site throughout a full season. As a result we were unable to estimate survival rates for that site.