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Beeby & Brennan: First Ecology - Ecological Principles and Environmental Issues 3e

1. Polar bear ecology

Effects of pollution on polar bears

Case study 1a - Polar bears as sentinel species of environmental change

  1. Preface (First Words) - pollution burden of polar bears on Svalbard

  2. Box 2 - possible effects of PCBs on polar bears and other animals

  3. Box 6.4 - trophic mobility of organic pollutants in polar bears as a top predator

  4. Box 9.3 - polar bear condition, the duration of sea ice, and global warming


Population ecology

Case study 1b - The range of ecological data that can be collected about a species using satellite telemetry

  1. Box 3.4 - population genetics of the bears around Svalbard

  2. Box 4.3 - predator-prey relationship with ringed seals

  3. Box 9.3 - polar bear condition and the duration of sea ice


Impact of climate change on polar bears

Case study 1c - The threat of extinction to polar bears following habitat loss

  1. Box 9.3 - polar bear condition and the duration of sea ice

  2. Box 3.4 - population genetics of the bears around Svalbard

  3. Box 3.2 - how its age structure affects a population's rate of growth

  4. Section 3.7 - the general effects of population fragmentation on the likelihood of extinction

  5. Section 8.3 - ecological changes associated with climate change, with some prediction of the reductions in the northern ice sheets