ENWC 201 Final Study Guide 2024 Questions and Answers

ENWC 201 Final Study Guide 2024 Questions and Answers What is an animal's niche? - CORRECT ANSWER-An animals role or job in an ecosystem How many dimensions can a niche have? - CORRECT ANSWER-A niche can be simple and complex What is the Pleistocene overkill? - CORRECT ANSWER-The argument that humans were responsible for the late pleistocene extinction of mega fauna. What did Teddy do to earn his term in office being coined as the Golden Age in Conservation? - CORRECT ANSWER-In 1903, Roosevelt initiated what was to become the National Wildlife Refuge system when he declared Pelican Island, FL. He also withdrew 50 million acres of land from the public domain to create national forest and he made a stronger enforcement What is overexploitation? - CORRECT ANSWER-Overexploitation is living off the land or seas in a manner that can not be sustained What is the largest threat to terrestrial biodiversity around the world? - CORRECT ANSWER-The largest threat is habitat loss. What is DDT and how did it affect wildlife and humans? - CORRECT ANSWER-DDT: used in WWII to control malaria and typhus, 1962 Rachel Carson wrote Silent Spring Has been linked to diabetes, premature birth and low birth rate, developmental delays, parkinson's, asthma, cancers What is propagule pressure and what are pathways of invasion? - CORRECT ANSWER-Propagule pressure is the quantity, quality, and frequency of arriving organisms. Pathways will determine the propagule pressure. It is a major force in determining invasion success. What is acid rain? How is it caused (think power plants primarily)? - CORRECT ANSWER-Acid rain is rain, fog, or snow with a pH of less than 5.6. Sulfuric acid and nitric acid are secondary air pollutants that are directly emitted by power plants and form acid rain. How does climate change affect timing known as the phenology of an animal? What happens if phenologies are mismatched? - CORRECT ANSWER-Phenological events are commonly caused by seasonal temperature changes, photoperiod, lunar tides, seasonal weather, and the penologies of other organisms. - Timing is affected by climate changes because many specie penologies are *driven directly or indirectly by temperature cues.* If penologies are mismatched it could lead to *population decline.* What is the IUCN Red List? - CORRECT ANSWER-Internation