JUL 20, 2020 7:09 AM PDT

Ectotherm thermal physiology puts amphibians at even greater climate risk than previously recognized

Things aren’t looking good for amphibians. According to new research published in Global Change Biology from Simon Fraser University researchers, amphibians will have to choose between two habitats in the coming years - both which offer little room for survival. 

Ectotherm thermal physiology is often used to predict species responses to climate change. While many studies have been carried out modeling how future temperatures will impact amphibians, this new study considers the impacts of climate change from a physiological perspective - evaporative water loss. Amphibians need to be able to keep their skin moist in order to survive, but cool, wet spots will become the most scarce real estate under future climate conditions. 

According to researchers from SFU and the University of California-Santa Cruz, within sixty years even the habitats predicted to be safe for amphibians will be either too hot or too dehydrating, with wetland edges too hot for up to 74% of the summer and too dehydrating for up to 95%. 

"Such trade-offs will only get more challenging with future climate change, with no single habitat being safe at all times," says lead author Gavia Lertzman-Lepofsky. Unfortunately, these trade-offs will undoubtedly affect other aspects of amphibian life, requiring the animals to move between habitats much more often, using up energy for movement rather than for finding food or reproduction.

Photo: Pixabay

The authors say their findings should cause alarm within the larger community. “We conclude that temperature and water loss act synergistically, compounding the ecophysiological risk posed by climate change, as the combined effects are more severe than those predicted individually,” they write. “Our results suggest that predictions of physiological risk posed by climate change that do not account for water loss in amphibians may be severely underestimated and that there may be limited scope for facultative behaviors to mediate rapidly changing environments.”

 Sources: Global Change Biology, Science Daily

About the Author
  • Kathryn is a curious world-traveller interested in the intersection between nature, culture, history, and people. She has worked for environmental education non-profits and is a Spanish/English interpreter.
You May Also Like
AUG 25, 2021
Earth & The Environment
Environmental Effects of Fast Fashion
AUG 25, 2021
Environmental Effects of Fast Fashion
August 25th is National Secondhand Wardrobe Day! Today we celebrate reusing clothing and keeping it from ending up ...
AUG 31, 2021
Microbiology
How Cow Stomachs Might Help Us Reduce Plastic Waste
AUG 31, 2021
How Cow Stomachs Might Help Us Reduce Plastic Waste
Plastic is a long-lasting material that has many uses, which has led to a proliferation of plastic packaging that is pol ...
SEP 07, 2021
Earth & The Environment
The Future of Flooding
SEP 07, 2021
The Future of Flooding
In the wake of recent flooding on the east coast as a result of Hurricane Ida, many people are wondering what the future ...
SEP 08, 2021
Plants & Animals
Are the skeletons of macaque hybrids distinct?
SEP 08, 2021
Are the skeletons of macaque hybrids distinct?
New research sheds insight into the evolution of the human pelvis by using macaque hybrid models.
SEP 28, 2021
Microbiology
A 24,000-Year-Old Rotifer From the Siberian Arctic is Alive & Thriving
SEP 28, 2021
A 24,000-Year-Old Rotifer From the Siberian Arctic is Alive & Thriving
This image by Michael Plewka shows a very tough old rotifer.
OCT 06, 2021
Chemistry & Physics
2021's Nobel Prize in Physics Recognizes Foundational Work in Climate Science
OCT 06, 2021
2021's Nobel Prize in Physics Recognizes Foundational Work in Climate Science
The 2021 lineup for one of the world’s most prestigious awards has been announced, and the medal for physics has b ...
Loading Comments...