Trophic cascades from wolves to grizzly bears or changing abundance of bears and alternate foods?
Barber-Meyer SM. 2015. Trophic cascades from wolves to grizzly bears or changing abundance of bears and alternate foods?. Journal of Animal Ecology. 84(3):647–651
This is a Forum article commenting on: Ripple, W. J., Beschta, R. L., Fortin, J. K., & Robbins, C. T. (2014) Trophic cascades from wolves to grizzly bears in Yellowstone. Journal of Animal Ecology, 83, 223–233. Comparisons Ripple et al. (2014) used to demonstrate increased fruit availability and consumption by grizzly bears post-wolf reintroduction are flawed and tenuous at best. Importantly, a more parsimonious (than trophic cascades) hypothesis, not sufficiently considered by Ripple et al., exists and is better supported by available data I review.
- Type
- Journal Article
- Authors
- Barber-Meyer, Shannon
- Units
- GRYN , YELL
- Keywords
- Canis lupus, grizzly bear, scat, serviceberry, study design, trophic cascades, Ursus arctos, wolf, Yellowstone
- Subjects
- Ecological Framework: Biological Integrity | Focal Species or Communities | Mammals