User talk:Andreafaye171

Effects of climate change on terrestrial animals
[|Climate change] is a natural event that has played out throughout history. However, with the recent increased emission of [|Co2] in the Earth's atmosphere, [|abrupt climate change] has occurred. Climate change has had a significant direct effect on terrestrial animal responses. Species respond to climate changes by migration, adaptation, or if neither of those occur, lastly, death.

Migration Range shifts are a natural response to climate change.

Adaptation Tolerance

Genetics Adaptation

Changes in Phenology

Estimated Animals Likely to Adapt Short generational times as for many microbial disease organisms, small insects, common fisheries species and annual plants are thought to be highly more adaptive. Good dispersal allow animals to migrate and move to an environment better suitable in an effort to handle climate change. Broad climatic tolerance is essentially the ability an animal has to withstand large range of conditions. For example, the [|kangaroo] has a very broad climatic tolerance. Generalists are non-habitat species in that they are not restricted to a specific location and environment. Opportunistic species feed and adapt to much changes.

Estimated Animals Less Likely to Adapt

Rosenzweig et al.. (2007:81) concluded that over the last three decades, human-induced warming had likely had a discernible influence on many physical and biological systems.

Schneider et al.. (2007:792) concluded, with high confidence, that climate change would result in the [|extinction] of many species and a reduction in the [|biodiversity] of ecosystems.

* Terrestrial ecosystems and biodiversity: With a warming of 3°C, relative to 1990 levels, it is likely that global terrestrial vegetation would become a net source of carbon (Schneider et al.., 2007:792). With high confidence, Schneider et al.. (2007:788) concluded that a global mean temperature increase of around 4°C (above the 1990-2000 level) by 2100 would lead to major extinctions around the globe. * Marine ecosystems and biodiversity: With very high confidence, Schneider et al.. (2007:792) concluded that a warming of 2°C above 1990 levels would result in mass mortality of coral reefs globally. * Freshwater ecosystems: Above about a 4°C increase in global mean temperature by 2100 (relative to 1990-2000), Schneider et al.. (2007:789) concluded, with high confidence, that many freshwater species would become extinct.