Predator–prey interactions under climate change: the importance of habitat vs body temperature
By Bernardo R. Broitman, P. Szathmary, K. Mislan, Carol Blanchette, Brian Helmuth. 2009
96 citations recorded by the source corpus.
Habitat temperature is often assumed to serve as an effective proxy for organism body temperature when making predictions of species distributions under future climate change. However, the determinants of body temperature are complex, and organisms in identical microhabitats can occupy radically different thermal niches. This can have major implications of our understanding of how thermal stress modulates predatorprey relationships under field conditions. Using body temperature data from four different sites on Santa Cruz Island, California, we show that at two sites the body temperatures of a keystone predator (the seastar Pisaster ochraceus) and its prey (the mussel Mytilus californianus) followed very different trajectories, even though both animals occupied identical microhabitats. At the other two sites, body temperatures of predator and prey were closely coupled across a range of scales. The dynamical differences between predator and prey body temperatures depended on the location of pairs of sites, at the extremes of a persistent landscapescale weather pattern observed across the island. Thus, the well understood predatorprey interaction between Pisaster and Mytilus cannot be predicted based on habitat-level information alone, as is now commonly attempted with landscape-level (‘climate envelope’) models.
Subfields: Ecology, Global and Planetary Change
View Paper: https://www.semanticscholar.org/paper/3fdfa20bfda16547491bf9ab8c46e6e49e5c3608
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In Ecology
In Global and Planetary Change
Citations in the corpus
- Behavioral thermoregulation in a tropical gastropod: links to climate change scenarios (2011, methodology): “Heat fluxes are driven by the interaction of multiple climate variables, e.g. solar radiation, humidity, air temperature (AT) (Broitman et al., 2009).”
- Hidden signals of climate change in intertidal ecosystems: What (not) to expect when you are expecting (2011, unknown): “In contrast,models that usemonthly or even seasonal environmental data as inputs not only ignore the potential for organisms to modify or perceive those large scale signals in different ways, but they forego any possibility of detecting the coincidence of extreme events unless they co-occur over tho”