13. Which of the following is an example of conservation? a. creating a nature preserve b. cleaning up a polluted stream c. planting trees on an eroding slope d. reintroducing endangered species

Definition of term renewable resources, nonrenewable resources, sustainable use, endemic, bioremediation, biological augmentation.

Entangles fish, marine mammals, and sea birds, preventing them from feeding or causing them to drown. Dead zones: algal blooms consume oxygen, kills shellfish and displaces fish. Poisonous algae and countless plants and animals have invaded harbor waters and disrupted the local ecological balance. Destruction of coral reefs. Of the seventeen major world fisheries, four are depleted and the other thirteen are either fished to capacity or over-fished. Commercial marine fisheries. Nitrogen and phosphorus from sources such as fertilizer, sewage and detergents, enter coastal waters. Invasive species, such as zebra mussels. Cruise ships and tourists. Ghost nets: lost or discarded fishing nets keep on fishing.

Don’t know what one goes to which

ascertainment bias... The natural tendency to use surrounding information to resolve ambiguities Bias that is introduced by the process of collecting a sample or doing a search The tendency to focus on unusual or dangerous things A tendency to see the things that we want or expect to see none of above

The ethical principle of "beneficence" states (in part) that research projects should maximize to the participants. O benevolence truthfulness benefits maleficence

QUESTION 5 Which statement does NOT apply to ecological studies? A unit of time might be the "unit of observation" The sample size is the total number of people on whom the data is based They are subject to the ecological fallacy of applying population level associations to individuals They generally use statistics that have already been calculated for the groups as the variables Confounding is very difficult to control for with most ecological data

Which interactions are neutral (zero) for one of two species only? Amensalism and neutralism. Parasitism and predation. Commensalism and amensalism. Competition and commensalism.

Search and Rescue (SAR) organizations are embracing unmanned aerial vehicles or drones to support their missions. In many SAR missions, searchers are dispatched in the wilderness or urban areas to look for clues of the lost person (e.g., footprints, personal belongs). One manager proposes that every searcher should be given a drone to help their search. However, a volunteer trained in human factors disagrees on the basis of the multiple resource theory. Briefly describe the task of searching for clues and flying a drone. Use the multiple resource theory (including all three components) to indicate why providing drones for searchers may indeed result in inferior SAR performance.

describe what is going on this pictures. think of any possible ecological interaction as you can list.