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Cleanup continues, and a portion of the oil pipeline has reopened as experts investigate the cause and impacts of last week’s oil spill.
Keystone species play a critical role in maintaining the structure of an ecological community, affecting many other organisms in an ecosystem and helping to determine the types and numbers of various other species in the community. Without keystone species, the ecosystem would be dramatically different or cease to exist altogether. Some ...
The Indian vulture is a keystone species that has been listed as Critically Endangered on the IUCN Red List since 2002, as the population has severely declined during the Indian vulture crisis. It is estimated that there are 5,000-15,000 mature individuals in the wild.
Keystone species are typically essential because of their trophic effect, while ecosystem engineers are not. As with keystone species, ecosystem engineers are not necessarily abundant. Species with greater density and large per capita effect have a more easily-noticeable effect, but less abundant species can still have a large impact.
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Beaver, Canadian lynx, bobcat, wolverine, and snowshoe hare are all keystone species in the taiga area. These species are keystone because they have learned to adapt to the cold climate of the area and are able to survive year-round. These species survive year-round in taiga by changing fur color and growing extra fur.
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This is the biggest oil spill in Keystone Pipeline history. [ 31 ] December 23 – Energy Transfer Partners experienced a failure, at their Cygnet, Ohio Pump Station, that resulted in the release of approximately 83,000 gallons of crude oil, a portion which migrated off property controlled by Energy Transfer.