Leslie Patten Books: Wild Places, Sacred Spaces

I recently attended a presentation by Wyoming Game and Fish large carnivore biologist Luke Ellsbury on, what else, large carnivores. I was mostly interested to know any results from Justin Clapp’s study on CWD and mountain lions. The field research is done but the analysis hasn’t been published yet. Luke confirmed that mountain lions were definitely targeting CWD deer and elk.

Another study measured the amount of prions in scat from mountain lions intentionally fed CWD infested deer meat. On the first defecation, the meat contained only 3% prions. And no detection on defecations after that. Luke said with these results in hand, the Service is definitely looking at adjusting mountain lion quotas in areas where they want to target reducing CWD in deer and elk. They are also planning on repeating this study with other predators—wolves and bears—and are presently testing CWD meat on bobcats in the field.

The study also corroborated findings from Elbroch’s Jackson study that as lions age they tend to prey switch to elk more heavily. That means if WGF wants to reduce elk CWD through mountain lion predation, reducing hunt quotas will allow more older mountain lions on the landscape. The critical age for prey switching seems to be five years old.

In other more personal mountain lion news, Luke confirmed for me that my one-eyed female lion was not harvested this year. In my area which is the northern end of Hunt Area 19, only one female was harvested this winter. I showed Luke the last video I captured of one of One-Eyed cubs. I thought he looked pretty rough. Luke agreed he didn’t look in good shape, confirming to me that most likely the mother and other cub are dead. And this cub, probably a male because he was always the bigger of the two cubs, isn’t likely to survive either. Cubs under one year old that lose their mother have a very low survival rate as they haven’t developed their hunting skills yet.

Luke told me that this winter one lion was killed by wolves in my area, and that he had a call about another lion recently killed by wolves. Lions in my area aren’t collared, so these would be lions that hunters or hikers encounter and report. We’ve also had one report of a mountain lion dying of bird flu in the North Fork area of Cody.

I’ll continue to check cameras and hope to see One-Eye. I’ve followed her since she arrived in my area in 2021 as a young lion. She was probably born with her blindness. This was her second litter and I thought she was going to be really successful. The last time I saw the family together, those cubs looked happy and healthy at probably around seven or eight months old. Life is definitely rough out in the wild.

To pre-order the expanded edition of Ghostwalker out this fall, and to be receive a 40% discount, go to https://www.nebraskapress.unl.edu/bison-books/9781496238474/ and enter code 6AF24

Filed under: Cougars | Tagged: animals, Cougars, mountain lions, nature, Wildlife, Wolf, Wolves |