NRES 311 Test #2

what's the type of selection where there's a big curve over Aa and aa?

Directional

"IUCN" is an acronym for what?

International Union for Conservation of Nature

what is the mechanism for population regulation of Soay Sheep through?

Intraspecific competition

what isn't true about the Red Data Book?

It's a list of species concern for the following countries: Canada, USA, Mexico

climate effects (like a hard winter) may cause mortality, which lowers a population's size. We would consider this to be an example of:

Limitation, but not regulation

A population might be expected to grow exponentially for 5-10 years in which of the following situations:

Ten wild pigs are released in central Nebraska for the first time

In a kangaroo population in central Australia the biologist documents the following data in one year: births = 50, immigrants = 10, deaths = 50 and emigrants = 0. According to the BIDE Model, what is the population growth in that year?

10 kangaroos

What is not one of the 5 main factors, listed by IUCN, that most often caused species to reach small population sizes "dire status"?

Climate Change

Which of these includes Leopold's factors? Food, Predation, Water, Cover

Predation

Predators may regulate prey in what two types of response?

Predators respond functionality and numerically to prey

the legal definition, according to the Endangered Species Act of 1973, for "threatened" is:

a species likely to become endangered

which of the following individuals or groups CANNOT submit a petition to list a species on the endangered species list?

all the above (you as a private citizen and individual, Nebraska Game and Parks Commission, The Fremont chapter of the Izaak Walton League

according to the text and the IUCN the species group with the largest percentage of species that have conservation concern (vulnerable or worse) is:

amphibians

Which of the following are segments of a population species that can be granted threatened or endangered status under the ESA of 1973?

any of these 3: species, subspecies, distinct population segments

Factors that regulate populations do so becuase they are:

density dependent

If a coyote increases the number of rabbits that it kills per week (its "kill rate") after an increase in the number of rabbits in a population, we would call this a:

functional response of predation

What is the mechanism Africa for the partitioning of habitats?

interspecific competition

fisheries biologists often use the term "yield". yield should best be described as:

the portion of the population taken by humans

what are the two agencies responsible for carrying out the recovery planning for endangered and threatened species?

two federal agencies (US Fish and Wildlife Service and NOAA National Marine Fisheries Service) are responsible for recovery planning

Of the following causes of endangerment, which has the highest level of control by a state wildlife agency (the agency has a decent ability to help solve a problem quickly)

unwise and unregulated hunting and fishing