1 / 11

AP Bio - Ecology Podcast 7

AP Bio - Ecology Podcast 7. Population Ecology. Population Ecology – Describing a Population. Remember Our Levels of Biological Organization…. Population - All members of a species in a contiguous area. Interactions with a population may be intense.

pisces
Download Presentation

AP Bio - Ecology Podcast 7

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. AP Bio - Ecology Podcast 7 Population Ecology Population Ecology – Describing a Population

  2. Remember Our Levels of Biological Organization… Population - All members of a species in a contiguous area

  3. Interactions with a population may be intense • Group of individuals of same species in same area at same time • rely on same resources • interact • interbreed Population Ecology: What factors affect a population?

  4. Goals of Population Ecology • Scientific goal • understanding the factors that affect populations and their size/growth • general principles • specific cases • Practical goal • management of populations • increase population size • Ex: endangered species • decrease population size • Ex: Invasive species • maintain population size • Ex: fisheries management

  5. Describing a Population • Describing a population • population range • pattern of spacing • density • size of population range density

  6. Population Range • Geographical limitations • abiotic & biotic factors • temperature, rainfall, food, predators, etc. • habitat adaptations topolar biome adaptations torainforest biome

  7. At risk populations • Endangered species • Severe limitations to range / habitat • places species at risk • Habitat loss perhaps greatest threat to species

  8. Population Density/Spacing Provides insight into the environmental needs & social interactions of individuals in population • 3 Typical Patterns clumped random uniform

  9. Uniform May result from direct interactions between individuals in the population  territoriality Clumped patterns

  10. Clumped Pattern (most common)

  11. Random Pattern (least common)

More Related