Climate Change Impacts on Salamander Populations
Summary
Salamander populations worldwide are experiencing complex responses to ongoing climatic shifts. Rising temperatures and altered precipitation regimes are driving range contractions, latitudinal and elevational shifts, and increased habitat fragmentation. Many species adapted to cool, moist microclimates face reduced breeding success as stream temperatures rise and summer droughts lengthen, while montane endemics are squeezed into ever-diminishing upland refugia. Changes in hydrology exacerbate disease transmission and disrupt critical larval development periods. At the same time, climate-driven habitat turnover is prompting some taxa to expand into novel areas, though often at the cost of genetic connectivity. Conservation strategies are focusing on the identification and protection of climatic refugia, the restoration of hydrological regimes, the maintenance of habitat corridors, and, where necessary, captive-rearing and assisted translocation to bolster vulnerable populations.
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Climate Change Impacts on Salamander Populations publication trend
The graph below shows the total number of articles in climate change impacts on salamander populations across all publications each year (not limited to Nature Index journals).
Technical terms
Species distribution model (SDM): A computational method that correlates occurrence records with environmental variables to predict areas of suitable habitat under current or future climatic conditions.
Representative Concentration Pathway (RCP): A greenhouse-gas concentration trajectory adopted by climate modellers to project future climatic scenarios, typically distinguished by radiative forcing values (e.g. RCP4.5, RCP8.5).
Habitat fragmentation: The process by which continuous habitat is divided into smaller, isolated patches, reducing genetic exchange and increasing local extinction risk.
Climatic refugium: A geographic area that remains relatively buffered from climatic extremes, providing stable conditions that allow species persistence during periods of environmental stress.
Environmental niche modelling: A framework for inferring the ecological requirements of a species from environmental correlates, often used interchangeably with species distribution modelling.
References
- The potential effects of climate change on amphibian distribution, range fragmentation and turnover in China. PeerJ (2016).
- Species distribution models for predicting the habitat suitability of Chinese fire‐bellied newt Cynops orientalis under climate change. Ecology and Evolution (2021).
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