We can't improve everything. Olson listed four criterion for good habitat. First, good habitat needs plant diversity. There needs to be a large number of different types of plants, according to Olson. Next, there should be structural diversity in the plants that exist in habitat areas, that is, the plants need to be different levels of plant life, like trees, shrubs, willows and grasses.
Edge habitat is next.
Different types of plant life living next to each other constitute edge habitat, and create greater chances for wildlife to thrive. Roads, according to Olson, can create edge habitat. Lastly, interspersion is the equal proportion of different habitat types, from a landscape perspective, or a large-scale perspective. Wildlife Biologist Olin Oedekoven, who works for the Game and Fish out of Gillette, Wy, broke the effects of CBM development into two categories. This means that some companies have built reservoirs to hold the water they pump out, and then stock the lakes with fish.