Environmental Science 1021F/G Lecture Notes - Lecture 10: Bearded Seal, Ringed Seal
4 Oct 2017
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Document Summary
Arctic ice has declined 7. 4% in the last quarter century. This decrease, published in 2004, continues to drop as the years increase (johannessen et al. , Changes in arctic regions has a substantial effect on organisms residing there: regional transformations cause for a depletion of animal habitats, and therefore a reduction in animal health and population (rode et al. , 2014) There are a total of 11 marine mammals at risk in the arctic (laidre et al. , 2015); the dominant species being the polar bear, while others include the bearded seal, walrus, and ringed seal (moore & huntington, 2006). Humans residing in the arctic are also affected by shrinking sea ice, as it forces polar bears onto land where the two must encounter each other (world. Bird species in the risparian arctic tundra of norway also suffer population reduction due to climate change. The reason for this is the loss of the willow thickets in which they reside (ims & henden, 2012).
