Synergistic impacts of global warming and thermohaline circulation collapse on amphibians.
Commun Biol
; 4(1): 141, 2021 01 29.
Article
in En
| MEDLINE
| ID: mdl-33514877
ABSTRACT
Impacts on ecosystems and biodiversity are a prominent area of research in climate change. However, little is known about the effects of abrupt climate change and climate catastrophes on them. The probability of occurrence of such events is largely unknown but the associated risks could be large enough to influence global climate policy. Amphibians are indicators of ecosystems' health and particularly sensitive to novel climate conditions. Using state-of-the-art climate model simulations, we present a global assessment of the effects of unabated global warming and a collapse of the Atlantic meridional overturning circulation (AMOC) on the distribution of 2509 amphibian species across six biogeographical realms and extinction risk categories. Global warming impacts are severe and strongly enhanced by additional and substantial AMOC weakening, showing tipping point behavior for many amphibian species. Further declines in climatically suitable areas are projected across multiple clades, and biogeographical regions. Species loss in regional assemblages is extensive across regions, with Neotropical, Nearctic and Palearctic regions being most affected. Results underline the need to expand existing knowledge about the consequences of climate catastrophes on human and natural systems to properly assess the risks of unabated warming and the benefits of active mitigation strategies.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Temperature
/
Water Movements
/
Ecosystem
/
Global Warming
/
Amphibians
Limits:
Animals
Language:
En
Journal:
Commun Biol
Year:
2021
Document type:
Article
Affiliation country:
Mexico