Elbroch et al. 2018 - Ecology and Evolution.pdf (761.4 kB)

Multiple anthropogenic interventions drive puma survival following wolf recovery in the Greater Yellowstone Ecosystem

Download (761.4 kB)
journal contribution
posted on 13.06.2020 by LM Elbroch, L Marescot, H Quigley, D Craighead, Heiko Wittmer
© 2018 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. Humans are primary drivers of declining abundances and extirpation of large carnivores worldwide. Management interventions to restore biodiversity patterns, however, include carnivore reintroductions, despite the many unresolved ecological consequences associated with such efforts. Using multistate capture–mark–recapture models, we explored age-specific survival and cause-specific mortality rates for 134 pumas (Puma concolor) monitored in the Greater Yellowstone Ecosystem during gray wolf (Canis lupus) recovery. We identified two top models explaining differences in puma survivorship, and our results suggested three management interventions (unsustainable puma hunting, reduction in a primary prey, and reintroduction of a dominant competitor) have unintentionally impacted puma survival. Specifically, puma survival across age classes was lower in the 6-month hunting season than the 6-month nonhunting season; human-caused mortality rates for juveniles and adults, and predation rates on puma kittens, were higher in the hunting season. Predation on puma kittens, and starvation rates for all pumas, also increased as managers reduced elk (Cervus elaphus) abundance in the system, highlighting direct and indirect effects of competition between recovering wolves and pumas over prey. Our results emphasize the importance of understanding the synergistic effects of existing management strategies and the recovery of large, dominant carnivores to effectively conserve subordinate, hunted carnivores in human-dominated landscapes.

History

Preferred citation

Elbroch, L.M., Marescot, L., Quigley, H., Craighead, D. & Wittmer, H.U. (2018). Multiple anthropogenic interventions drive puma survival following wolf recovery in the Greater Yellowstone Ecosystem. Ecology and Evolution, 8(14), 7236-7245. https://doi.org/10.1002/ece3.4264

Journal title

Ecology and Evolution

Volume

8

Issue

14

Publication date

01/07/2018

Pagination

7236-7245

Publisher

Wiley

Publication status

Published

Online publication date

25/06/2018

ISSN

2045-7758

eISSN

2045-7758

Language

en

Exports