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Major Biomes & Marine Ecosystems
- 1. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 5 Lecture Outline
- 3. In the end, we conserve only what we love. We will love only what we understand. We will understand only what we are taught. –Baba Dioum 5-
- 6. 5-
- 8. Annual temperature and precipitation levels in terrestrial biomes 5-
- 15. Boreal forests lie north of the temperate zone 5-
- 18. Open ocean communities vary from surface to hadal zone 5-
- 23. 5.3 Freshwater Ecosystems: Lakes 5-
- 24. Freshwater Ecosystems continued: Wetlands 5- Wetlands (swamps, marshes, & bogs) are shallow ecosystems in which the land surface is saturated or submerged at least part of the year.
- 28. Biodiversity hot spots are rich and threatened 5-
- 36. 5-
Notas del editor
- Predators Help Restore Biodiversity in Yellowstone: In the past dozen years, Yellowstone National Park has been the site of a grand experiment in managing biodiversity. The park is renowned for its wildlife and wilderness. But between about 1930 and 1990, park managers and ecologists observed that growing elk populations were overbrowsing willow and aspen. Plant health and diversity were declining, and populations of smaller mammals, such as beaver, were gradually dwindling. Most ecologists blamed these changes on the eradication of one of the region’s main predators, the gray wolf ( Canis lupus). Now, a project to restore wolves has provided a rare opportunity to watch environmental change unfold.