The American Naturalist, Journal Year: 2024, Volume and Issue: unknown, P. E000 - E000
Published: Sept. 18, 2024
AbstractChanging climates are driving population declines in diverse animals worldwide. Winter conditions may play an important role these but often overlooked. Animals must not only survive winter also preserve body condition, a key determinant of growing season success. We hypothesized that ectotherms overwintering soil face trade-off between risks cold damage (including freezing) near the surface and elevated energy use at deeper depths. To test this hypothesis, we developed landscapes mortality risk across depth for bumble bee queens. These critical pollinators decline part because climate change, little is known about how affects mortality. mechanistic modeling approach combining measurements freezing points temperature dependence metabolic rates with temperatures from United States to estimate under historic several change scenarios. Under current conditions, queens Goldilocks effect: can be too shallow depths substantial hot deep where they prematurely exhausting lipid stores. Models suggest increases mean seasonal daily variation will increase overwinter Better predictions effects changing on dormant require more physiological responses during dormancy taxa.
Language: Английский