Ducks Unlimited Ecology Conservation & Management Certification Review

The area must have standing water year-round - ANS Carol works for the U.S. Fish & Wildlife Service and is surveying an area to determine if it meets the requirements to be classified as a wetland. Which of the following is NOT a requirement for her to take into consideration? selective cutting - ANS Logging the most mature trees clear-cutting - ANS Logging all trees of the same age in one area shelterwood cutting - ANS Leaving desirable trees standing How organisms match and respond to environmental conditions - ANS Which of the following best describes a niche? Trees grown in areas of agriculture which are used to stabilize environmental conditions of crops - ANS Which of the following best describes agroforestry? marshes - ANS Dominated by emergent vegetation Bogs - ANS Accumulates dead plant material Fens - ANS Have grasses and mineral-rich water Swamps - ANS Dominated by trees False - ANS One acre of wetland filters 7.3 gallons of water a month into fresh drinking water. Secondary succession - ANS A large plot of land in a grassland ecosystem was converted for agriculture. After four decades of agricultural use the land was abandoned and began to revert to its original grassland state. This is an example of which of the following? breeding season - ANS Access to ample amounts of easily accessible resources; multiple ponds or small wetlands are ideal Migration - ANS Resources used for feeding and protected shelter while resting for short periods