We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Joint effects of rising temperature and the presence of introduced predatory fish on montane amphibian populations.
- Authors
Polo-Cavia, N.; Boyero, L.; Martín-Beyer, B.; Barmuta, L. A.; Bosch, J.
- Abstract
Amphibian populations in montane habitats are often subjected to high thermal variability, which may exacerbate anthropogenic impacts such as the introduction of exotic species. Here, we present data from two experiments exploring the joint effects of rising temperatures and the presence of waterborne cues from an exotic predatory fish on the short- and long-term antipredatory responses (i.e. activity and time to metamorphosis respectively) of Rana iberica and Salamandra salamandra larvae from two montane amphibian populations. We found some evidence of a cumulative effect of an increase in temperature and the presence of predators. Although predator recognition was not precluded at rising temperatures, we observed an increase in larval activity in warmer water, which might negatively affect survival by favoring prey detectability by predators. We also observed a strong quadratic effect of temperature and a joint effect of temperature and predators on larval development: at intermediate temperatures, larvae exposed to exotic trout cues had greatly accelerated metamorphosis. These results suggest that warmer conditions might be particularly harmful for larvae in montane wetlands enduring the presence of exotic predators.
- Subjects
EFFECT of atmospheric temperature on birds; EFFECT of temperature on birds; PHYSIOLOGICAL effects of atmospheric temperature; BIRD habitats; BIRD behavior; BIRD conservation; WILDLIFE conservation
- Publication
Animal Conservation, 2017, Vol 20, Issue 2, p128
- ISSN
1367-9430
- Publication type
Article
- DOI
10.1111/acv.12294