Fnr 103

FNR 103 INTRODUCTION TO ENVIRONMENTAL CONSERVATION

REVIEW SHEET FOR THIRD EXAM

The following are the main topics and terms covered since the last exam. If you know the definitions of these terms, and are generally familiar with the ideas, you should be prepared for the exam. When an example was given in class of a specific concept, know the general facts about the example, and what topic was being illustrated – the specific details are less important. Use the outlines given at the start of class, and materials shown as overhead slides as guides. ________________________________________________________________________________

1. Basic ecology. Levels of the ecological hierarchy (population, community, etc.). Community interactions: predation, mutualism, competition. Biomes – know basic facts of terrestrial and freshwater biomes described in the book: where are they found, what are they composed of (what do they look like). Energy flows: producers, consumers, types of each. Trophic levels, energy pyramid, 10% rule. Detritus & detritivores.

2. Changing ecosystems. Primary & secondary succession. Climax community. Relationship between climax community and biome names. Natural disturbance, catastrophes: be able to distinguish examples of each as well as define.

3. Forest and grassland resources. Renewable and nonrenewable resources. Sustainable resource use: economic and ecological definitions. Can nonrenewable resources be used sustainably? Under which definition? U.S. Forest Service. Private versus public ownership of forest land in Indiana. National rangelands. Bureau of Land Management. Be able to compare the relative acreages of major land uses covered (forestry, grazing, parks, wilderness).

4. Forestry and grassland issues. Below-cost timber sales. Common forestry practices (clearcutting, selection cutting, even-aged or uneven-aged forests. Cost of grazing leases on public versus private property. Wild horses out west: are they...