How Alaskan Tundra Ecosystem has been Affected by Climate Change

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HowAlaskan Tundra Ecosystem has been Affected by Climate Change

HowAlaskan Tundra Ecosystem has been Affected by Climate Change

Climatechange is one of the greatest threats to humanity and relates to hugedeviations in mean state of the climate over time. Does climatechange comes as a result of external pressures and natural internalprocesses or anthropogenic changes in composition of atmosphere orland? The last two centuries have seen drastic changes in global meantemperatures 0.6 degrees centigrade, and it is undisputable thatthis trend is beyond the natural climate variance(Johansen,&nbsp2016).Because of the warming, Alaskan tundra ecosystem has been mountingfaster than elsewhere in the world, meaning that the inhabitants andvisitors are at risk. This paper will examine the manifestationof climate change such as changesof habitats, changing species abundance and richness, as well asbiotic disturbances in Alaskan tundra ecosystem.

Theincreasing effects of climate change have made the Alaskan tundramountain a place where large trees cannot grow. The trees haveincessantly become shorter as the region cannot stay warm longenough. The ground is permanently frozen making it difficult fortrees roots to go deep enough to support the trees(Schuur,&nbsp2015).Despite the lack of trees, other animals have made it their habitant.Large variety of birds, mosquitoes and other plants thrive in thetundra. Plants thriving there are also short. UnitedStates &amp United States (2015) found that thereason for the changes is the rapid increase of carbon dioxide (CO2)in the atmosphere which has increased by 35% since 1800 due to humanactivities.

Theadverse effects of climate change on Alaskan tundra include negativeeffects on plants, erosion of coastlines and destruction of livingorganism. An examination of the issue of ecosystem at Alaskan tundrais based on the fact that the climate has changed over the years andthis study is motivated by the desire to trace some of the changes inbiodiversity.

References

Johansen,&nbspB.&nbspE.(2016).&nbspEmptycellars, melting ice, and burning tundra: Climate change and Nativepeoples in the United States and Canada.

Schuur,&nbspE.(2015). 2015 DOE Final UF Report. Effects of Warming the Deep Soiland Permafrost on Ecosystem Carbon Balance in Alaskan Tundra. ACoupled Measurement and Modeling Approach. doi:10.2172/1184213

UnitedStates, &amp United States. (2015).&nbsp2015DOE Final UF Report. Effects of Warming the Deep Soil and Permafroston Ecosystem Carbon Balance in Alaskan Tundra. A Coupled Measurementand Modeling Approach.Washington, DC: United States. Dept. of Energy. Office of Science.