The Keystone Species Theory

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Essay #: 054778
Total text length is 8,350 characters (approximately 5.8 pages).

Excerpts from the Paper

The beginning:
The Keystone Species Theory
Ecological communities are highly complex. In any ecological community there are hundreds is not thousands of organisms interacting in a wide range of dynamic relationships. The visual representation of these relationships is known as biodiversity(
Krohne
704). Biodiversity is vital to life on this planet but it is currently in a period of decline. For example, in “Getting to Solutions at
Worldfuture
2009” by Ann
Fenney
states, “…the world’s biodiversity is decreasing, and extinction levels are rising”(
Fenney
59). In order to potentially stop or reverse this trend it is necessary to understand some of the key determinants of biodiversity structure.
One way of trying to understand the nature of biodiversity it...
The end:
.....cialized predator preying solely on the super competitor prey (gumballs)
Works Cited
Chalcraft
, David R. and
Resetarits
Jr
, William J., “Predator
Identity and Ecological Impacts” in Ecology, Vol.84, No.9,
Sept.2003: 2407-2418.
Feeney, Ann, “Getting to Solutions at
Worldfuture
2009” in
The Futurist, November-December 2009: 59-60.
Krohne
, David T., General Ecology, Wadsworth Publishing,
Toronto, 1998.
Leibold
, Mathew, “A Graphical Model of Keystone Predators in
Food Webs” in The American Naturalist, Vol. 147, No. 5, May 1996: 784-812.
Shurin
, Jonathan B. and Allen, Emily G., “Effects of
Competition, Predation, and Dispersal on Species Richness
at Local and Regional Scales” in The American Naturalist, Vol. 158, No. 6, Dec., 2001: 624-637.