Data from: Will like replace like? linking thermal performance to ecological function across predator and herbivore populations
Rosenblatt, Adam E., Yale University
Wyatt, Katherine S., Yale University
Schmitz, Oswald J., Yale University
Published Feb 06, 2019 on Dryad.
Cite this dataset
Rosenblatt, Adam E.; Wyatt, Katherine S.; Schmitz, Oswald J. (2019). Data from: Will like replace like? linking thermal performance to ecological function across predator and herbivore populations [Dataset]. Dryad. https://doi.org/10.5061/dryad.3q177d2
The inability of species to adapt to changing climate may cause ecological communities to disassemble and lose ecological functioning. However, theory suggests that communities may be resilient whenever populations within species exhibit variation in thermal plasticity or adaptation whereby thermally tolerant populations replace thermally sensitive ones. But will they maintain the functional roles of the populations being replaced? This study evaluated whether “like replaces like” functionally by measuring how four populations of a grasshopper herbivore and its co-occurring spider predator cope with environmental warming. The study occurred across a latitudinal gradient bounded by southerly, warmer Connecticut and northerly, cooler New Hampshire, USA. The study compared the survival rates, thermal performance, habitat usage, and food chain interactions of each grasshopper and spider population between its home field site (field of origin) and a Connecticut transplant site, and the native Connecticut population. Three grasshopper populations exhibited physiological plasticity by adjusting metabolic rates. The fourth population selected cooler habitat locations. Spider populations did not alter their metabolism, and instead selected cooler habitat locations thereby altering spatial overlap with their prey and food chain interactions. Grasshopper populations that coped physiologically consumed plants in different ratios than the fourth population and the Connecticut population. Hence “like may not replace like” whenever populations adapt physiologically to warming.
Locations (height above ground) of grasshoppers and spiders inside terrariums recorded over the period of one day
Leaf CN data
Carbon and nitrogen content of goldenrod and grass leaves from five sites in New England
Plant biomass (goldenrod and grass) from control and experimental mesocosms at the termination of the experiment
Standard metabolic rate data for spiders and grasshoppers between 15 and 40 degrees Celsius
Rates of survival for spiders and grasshoppers from mesocosms spread across five sites in New England