Exam 5: Sustaining Biodiversity: The Species Approach

The ____________________ suggests that, on average, loss of 90% of the habitat in an area causes extinction of about 50% of the species in that area.

As human populations have spread over the globe, the species extinction rate has

The bioaccumulation of DDT threatened several species of fish eating birds by

Which of the following statements is false?

The wild pet trade has impacted all but which of the following animals or types of animals?

What is one reason that the effectiveness of CITES is limited?

The European wild boar is considered an invasive species because it

A slow reproduction rate makes a species especially vulnerable to biological extinction.

____________________ is the practice of collecting wild eggs laid by endangered bird species and then hatching them in zoos or research centers.

Egg pulling involves

a.osprey b.zooplankton -As DDT bioaccumulates in the accompanying ecosystem, which species would have the lowest concentration in their body?

When an area surrounding a national park is heavily logged, the park is in danger of becoming a

During smuggling, many animals that are caught die before reaching their destination.

Nonnative species thrive in new ecosystems because they have long generation times.

An endemic species would most likely be found in a(n)

____ occurs when a species no longer exists on the earth.

Habitat loss is an underlying cause of species extinction.

Which species is known to be threatened or endangered with premature extinction largely because of human activities?

Habitat islands are created by

Identify three ecological characteristics of the blue whale that make it vulnerable to extinction.