'Minimum viable population size' diaporamas de présentation

Chapter 56

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Chapter 56

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SPECIES AND LANDSCAPE APPROACHES TO CONSERVATION

Ecology 6080 - Pringle lecture: 13 October 2009. SPECIES AND LANDSCAPE APPROACHES TO CONSERVATION. Determinants of population change. BIDE factors : Birth, Immigration, Death,Emigration (age and sex dependent) Life history characteristics (e.g., age and sex structure of the population).

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Chapter 56

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Chapter 56

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Population dynamics

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Habitat Fragmentation

Habitat Fragmentation. A reduction in total area Creation of separate isolated patches from a larger continuous distribution Leads to overall reduction in population size and reduced migration among patches. Population fragmentation. Genetic diversity inbreeding Differentiation Extinction

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Island Biogeography and Conservation Biology Islands as Natural Ecological Experiments

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Lecture 3: Conservation

Lecture 3: Conservation. What is Conservation?. Restoration Ecology : applies ecological principles in an effort to return degraded ecosystems to their previous natural condition

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14.3 Factors Affecting Population Change

14.3 Factors Affecting Population Change. The role of Density. Generally, dense populations have lower birth rates, higher death rates, and slower growth rates than less dense populations Density-dependant factors are factors that limit population growth

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