Tuesday 6 November 2012

Animal extinction do to global warming


The Emperor Penguin may face food shortages because of a reduction in shelf ice under which the bird hunts for the shrimp-like krill on which it feeds. Less ice also means smaller breeding areas for the penguins. Ringed Seals must shift their ranges further north in order to find ice on which to raise their young. The Arctic Fox faces competition from red foxes that are now able to expand their range into the tundra because of global warming. The Beluga Whale faces increased human intrusion into its habitat due to reduction in the ice that previously made boat travel difficult. Stag horn Corals skeletons are dissolving due to the increased acidification of the oceans. Clownfish are also threatened by oceanic acidification that affects their sense of smell, thereby hindering them in their search for the sea anemones in which they live and on which they depend for protection from predators. Salmon will suffer from the fact that warmer water temperatures deplete the oxygen content in their breeding streams and rivers. The Koala Bear which because of the way that the increased amount of CO2 in the atmosphere affects Eucalyptus trees, is suffering from the decreased nutritional content in the Eucalyptus leaves on which it feeds. The Leatherback Turtle reproduction is being affected by the rising temperatures of the beach sand in which it lays its eggs. Warmer temperatures cause dramatic imbalances in the sex ratios of turtle hatchlings.  Bicknell’s Thrush is a species native to high-elevation regions of the Eastern US, is seeing major changes in its breeding habitat due to global climate change. Flamingos are experiencing a reduction in the size and quality of the tropical and semi-tropical wetlands they depend on for survival. The Irrawaddy Dolphin is one of the world’s four freshwater dolphin species, is being affected by changes in water flow and salinity in its Bangladesh and Southeast Asian river habitats.  The Musk Ox faces increased predation by grizzly bears that will be able to expand their range into musk-ox habitat due to global warming. The Hawksbill Turtle faces the same climate-related reproductive problems as the leatherback turtle on the IUCN list.

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