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Climate change that takes place over millennia differs from the man-made ... extreme heat that could lead to the mass extinction of mammals and other life. Below is a monthly animation of surface ...
Furthermore, climate change may disrupt the ecology among interacting species, via changes on behaviour and phenology, or via climate niche mismatch. [9] The disruption of species-species associations is a potential consequence of climate-driven movements of each individual species in opposite directions.
However, larger terrestrial animals (including many mammals) usually cannot adapt with microevolution, as the rate of climate change is still too fast for this evolutionary process. Some, like the kangaroo , can still benefit from a very broad climatic tolerance. [ 54 ]
Kaiho's follow-up paper estimated that under what he considered the most likely scenario of climate change, with 3 °C (5.4 °F) of warming by 2100 and 3.8 °C (6.8 °F) by 2500 (based on the average of Representative Concentration Pathways 4.5 and 6.0), would result in 8% marine species extinctions, 16–20% terrestrial animal species ...
Overall, the effects of climate change increase stress on ecosystems, and species unable to cope with the rapidly changing conditions will go extinct. [28] While modern climate change is caused by humans, past climate change events occurred naturally and have led to extinctions.
Mammal species, for example, typically persist for 1 million years. Biodiversity has grown and shrunk in earth's past due to (presumably) abiotic factors such as extinction events caused by geologically rapid changes in climate. Climate change 299 million years ago was one such event. A cooling and drying resulted in catastrophic rainforest ...
Among terrestrial mammals, the fastest rates of increase of body mass 0.259 vs. time (in Ma) occurred in perissodactyls (a slope of 2.1), followed by rodents (1.2) and proboscids (1.1), [7] all of which are hindgut fermenters. The rate of increase for artiodactyls (0.74) was about a third of the perissodactyls.
The cause of migration may be local climate, local availability of food, the season of the year or for mating. To be counted as a true migration, and not just a local dispersal or irruption, the movement of the animals should be an annual or seasonal occurrence, or a major habitat change as part of their life.