Linking ecomechanics and ecophysiology to interspecific interactions and community dynamics
Article first published online: 26 AUG 2013
© 2013 New York Academy of Sciences.
Annals of the New York Academy of Sciences
Volume 1297, Climate Change and Species Interactions: Ways Forward pages 73–82, September 2013
How to Cite
Harley, C. D.G. (2013), Linking ecomechanics and ecophysiology to interspecific interactions and community dynamics. Annals of the New York Academy of Sciences, 1297: 73–82. doi: 10.1111/nyas.12228
- Issue published online: 18 SEP 2013
- Article first published online: 26 AUG 2013
- National Sciences and Engineering Research Council Discovery
- climate change;
- heat-budget models;
- thermal-performance curves;
- mechanistic ecology
To predict community-level responses to climate change, we must understand how variation in environmental conditions drives changes in an organism's ability to acquire resources and translate those resources into growth, reproduction, and survival. This challenge can be approached mechanistically by establishing linkages from biophysics to community ecology. For example, body temperature can be predicted from environmental conditions and species-specific morphological and behavioral traits. Variation in body temperature within and among species dictates physiological performance, rates of resource acquisition, and growth. These ecological characteristics, along with population size, define the strength with which species interact. Finally, the direct (individual level) and indirect (community level) effects of temperature jointly determine community structure. This mechanistic framework can complement correlational approaches to better predict ecological responses to climate change and identify which characteristics of a species or community act as leverage points for change. Research priorities for further development of the mechanistic approach include documentation and prediction of relevant spatial and temporal variation in body temperature and the relationships between body temperature, individual performance, and interspecific interactions.