'Stable populations' diaporamas de présentation

Dispersal

Dispersal. Diffusion. Gradual movement Over several generations. California Sea Otter. Thought to be extinct in 1911 Found at Point Sur in 1914 More rapid southern expansion. Jump Dispersal. Example: oceanic islands Mostly by volant organisms (flight) ex.: Galapagos Islands

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Population Dynamics - History Demographic Transition In recent years death rates in many developing nations have decreas

Population Dynamics - History Demographic Transition In recent years death rates in many developing nations have decreased Status of the social and economic changes that will supposedly lead to stable populations is unclear

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Population Age Structure

Population Age Structure. Why is age structure important? How is age structure measures? What determines age structure?. Importance of age structure. Demographic bonus: Age-earnings profile Lifecycle saving: C and Y, Taiwan Fiscal policy: US (Lee and Edwards 2001).

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Natural science: Week 14 Chapter 14: Population Ecology

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