Theory of Fluctuating Resources

The 'fluctuating resources theory of invasibility' proposed by Davis, Grime, and Thompson posits that invasion is limited by access to available resources, for example, light, nutrients, and water, and that an invading species will be more successful at invading a community if it does not encounter intense competition for these resources from resident species. Intermittent resource enrichment or release from competition (often due to disturbance) increases community susceptibility to invasions, and invasions occur if this situation coincides with availability of suitable propagules (Figure 2). The larger the difference between gross resource supply and resource uptake, the more susceptible the community is to invasion. Experimental evidence shows that even very short fluctuations in resource availability (as short as 1 week) can greatly enhance plant invasion success (expressed as survival and cover of alien plants) up to 1 year after such events.

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10 Ways To Fight Off Cancer

10 Ways To Fight Off Cancer

Learning About 10 Ways Fight Off Cancer Can Have Amazing Benefits For Your Life The Best Tips On How To Keep This Killer At Bay Discovering that you or a loved one has cancer can be utterly terrifying. All the same, once you comprehend the causes of cancer and learn how to reverse those causes, you or your loved one may have more than a fighting chance of beating out cancer.

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