Wolves in California are costing ranchers millions of dollars far beyond just the price of cattle killed, .. A Wyoming rancher says the secondary costs of predation are well-known here. ... As California’s wolf population expands, the predators there are costing ranchers millions — not just in value of the cattle killed, but through collateral effects as well ... one wolf can cause $69,000 to $162,000 in “direct and indirect losses from lower pregnancy rates in cows and decreased weight gain in calves,” .. Those results should come as no surprise to Wyoming ranchers, Jim Magagna, executive vice president of...