CII is a very unstable protein in E. coli; it is degraded by a specific protease called FtsH (HflB), encoded by the hfl gene. 

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#Unit 10. Ecological Principles

Population distributions have five important characteristics

Geographic range

Abundance

Density

Dispersion

Dispersal

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#Id: 8230

#Unit 10. Ecological Principles

The geographic range of a species includes all the areas its members occupy during their life.

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#Id: 8231

#Unit 10. Ecological Principles

Endemic species - Species that live in a single, often isolated, location.

Cosmopolitan Species - with very large geographic ranges that can span several continents.

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#Unit 10. Ecological Principles

Dispersion of a population describes the spacing of individuals with respect to one another within the geographic range of a population

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#Id: 8233

#Unit 10. Ecological Principles

Populations of any species can grow at an incredibly rapid rate, given the right conditions.

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#Id: 8234

#Unit 10. Ecological Principles

Negative density dependence occurs when the rate of population growth decreases as population density increases.

Ex - limited supply of resources, such as food, nesting sites, and physical space.