Exam 27: Conservation Ecology

As estimates of actual and potential evapotranspiration increase, the number of terrestrial species ________.

A species found to naturally occur in a single geographic area and nowhere else is regarded as ________ to that location.

The dinosaurs and many other animals became extinct at the end of the

The primary cause of modern extinctions is habitat destruction.

Briefly outline the evolution of vascular plants.

Primary productivity in the oceans is lower in tropical latitudes than in temperate latitudes, primarily due to a permanent thermocline in tropical latitudes.

Over the past 600 million years, the overall trend in the number of species has been ________.

Which of the following would NOT be considered a goal of restoration ecology?

Endemic species are in imminent danger of becoming extinct.

A species with a 20% or greater probability of extinction within 20 years or 5 generations, whichever is longer, is considered to be a(n)________ species.

Genetic models suggest that the size of a population required to ensure the long-term survival of a species is higher for annual plants and invertebrates than for mammals.

The area of suitable habitat necessary to ensure the long-term survival of a species is called the minimum ________ area.

In terrestrial habitats, species richness is negatively correlated with primary productivity.

The species richness of terrestrial plants and animals generally increases with elevation.

As of 2011, COSEWIC has listed ________ endangered species and ________ extirpated species in Canada.

The goal of ________ ecology is to return an ecosystem to a close approximation of its conditions prior to disturbance through the application of ecological principles.

Aquatic environments are not affected by the introduction of exotic species.

Open areas of water surrounded by ice are called

All living species of organisms have now been described by scientists.

Species diversity declines from the equator toward either pole. Discuss the possible explanations for this observation.