Study shows climate change may affect overall population numbers
By Summit Voice
FRISCO — Warming ocean temperatures and increased glacial outflow around Antarctica may have a big impact on clams living on the ocean floor. Younger clams try to move away when they sense warmer temperature or reduced oxygen levels, but older clams stay put.
The findings by a team of British and German scientists indicate how climate change may affect biodiversity in the region, suggesting that the overall population of Antarctic clams may dwindle, since it’s the older animals that reproduce.
“Our study shows that the physiological flexibility of young clams diminishes as they get older. However, the species has evolved in such a way that the fittest animals, that can tolerate life in an extreme environment, survive to reproduce into old age,” said Doris Abele, of the Alfred Wegener Institute in Germany. “Climatic change, affecting primarily the older clams, may interfere with this evolutionary strategy, with unpredictable consequences for ecosystems all around Antarctica.” (more…)
Filed under: Antarctica, biodiversity, climate and weather, Environment, global warming | Tagged: Alfred Wegener Institute for Polar and Marine Research, Antarctic clams, Antarctic Peninsula, Antarctica, biodiversity, British Antarctic Survey, climate change, global warming | Leave a Comment »