What kinds of disturbances might change climax communities o

What kinds of disturbances might change climax communities on the steep slopes of the Rocky Mountains? tornados avalanches snowstorms human hunting of bears Canopy gaps change local forest composition primarily by increased. nutrient supply. coarse woody debris. light. soil moisture. Chaparral vegetation found in southern California is an example of a climax community maintained by extensive grazing. frequent logging. occasional hurricanes. periodic fires. In fire-maintained climax communities in the southeastern United States, periodic fires change soil conditions so they do not favor oaks or broadleaf species cause rapid compensatory growth of burned pines. kill oak and other broadleaf species but not pines. change water relations to conditions that favor pines. Grazer can change climax communities because they consume palatable plants. inhibit plants that are not resistant to trampling. alter soil conditions with their waste. alter natural predator-prey dynamics. Invasion of cheat grass (Bromus tectorum) in the western North America is maintained occasional hurricanes. periodic fires. extensive grazing. frequent logging.

Solution

22- Conifers are the climax community of Rocky mountains. Avalanches can wipe out even the largest evergreens. Hence the correct answer is option b

23-The open spaces in forest canopies are called Canopy gaps. They allow sunlight for new growth in forest. Hence the correct answer is option C.

24- Chapparal vegetation in Southern California is maintained by periodic fire. Hence the correct answer is option D

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