Wildlife Damage Management, Internet Center for

 

Date of this Version

October 2000

Abstract

Capture rates and injury rates of coyotes (Canis latrans), bobcats {Lynx rufus), and raccoons (Procyon lotor) captured in standard No. 3 Soft Catch® traps were compared to those captured in the same trap type modified with the Taos Lightening Spring™ (TLS) double torsion spring. All traps were equipped with Paws-I-Trip™ pan tension devices and were successful in excluding most small nontarget species. We captured 15 coyotes and 17 bobcats from October 1995 to March 1997. In addition, 23 raccoons, a large nontarget species, were captured. Capture rates for coyotes were higher (P < 0.10) in TLS modified traps (92%) than standard traps (27%), whereas capture rates were similar (P > 0.10) for raccoons (85% and 67%, respectively) and identical for bobcats (100%). Injury rates were minimal (< 9%) for coyotes and bobcats in both types of traps. In contrast, injury rates for raccoons were higher (P < 0.10) in TLS modified traps (73%) than standard traps (33%).