Related Experiment Video
Updated: Jun 16, 2026
05:31
Determining Temperature Preference of Mosquitoes and Other Ectotherms
Published on: September 28, 2022
2.4K
Mosquito thermal tolerance is remarkably constrained across a large climatic range
Lisa I Couper1, Johannah E Farner1, Kelsey P Lyberger1
1Department of Biology, Stanford University, 327 Campus Drive, Stanford, CA 94305, USA.
Proceedings. Biological Sciences
|January 24, 2024
Summary
Mosquitoes show limited adaptation to climate warming, with most populations unable to tolerate higher temperatures. Survival likely depends on behavioral strategies for avoiding extreme heat.
Area of Science:
- Ecology
- Climate Change Biology
- Entomology
Background:
- Climate warming poses significant threats to mosquito distributions and associated impacts on human health and biodiversity.
- Understanding mosquito adaptive potential is crucial for predicting future ecological dynamics.
Purpose of the Study:
- To investigate the adaptive capacity of the mosquito species *Aedes sierrensis* to rapid climate warming.
- To assess the thermal limits of life-history traits across a wide climatic gradient.
Main Methods:
- A common garden experiment was conducted to measure thermal tolerance of mosquito life-history traits.
- Populations were collected across a 1200 km climatic gradient.
Main Results:
- Limited variation (<3°C) in upper thermal limits was observed across the *Aedes sierrensis* species range.
- Pupal development rate showed local thermal adaptation, correlating with source temperatures.
- Environmental temperatures frequently exceed estimated upper thermal limits.
Conclusions:
- Mosquitoes exhibit constrained adaptive potential to climate warming based on physiological limits.
- Behavioral strategies for thermoregulation are likely critical for mosquito survival in warming environments.
