Cows in field

Latest Blog Posts

GPS Units -- Wolf-Livestock Research Series

One of the objectives of the wolf-livestock interaction study is to quantify the influence of wolf presence on cattle performance and grazing behavior across herds of cattle grazing on rangelands. In order to accomplish this, cattle will be randomly selected from wolf-affected and control herds to be fitted with a GPS collar that will track their movement during the summer (June - October) grazing season. 

Wolf - Livestock Interactions in California -- New Research

Overview of Study

Following a century of expatriation, gray wolves (Canis lupus) returned to California in 2011, and populations have rapidly grown. This has created a challenge facing ranchers, policy makers, and conservationists: restoring wolf populations – a Statewide policy – while fairly compensating ranchers for direct (i.e., livestock kills) and indirect (i.e., reduced livestock performance) costs of cohabitating with a regulatorily protected large carnivore.

Livestock Guardian Dogs for Predator Control: Do the Benefits Outweigh the Costs?

Predation is a major threat the economic viability of livestock operations. In the case of sheep operations in particular, predation by coyotes (Canis latrans) has long been cited as a primary driver of economic vulnerability and a major cause of producers leaving the business altogether. U.S. Department of Agriculture death loss reports confirm that coyotes are responsible for more than half of predator-related sheep losses and nearly 64% of predator-related lamb losses.