5 Written questions
5 Matching questions
- habitat fragmentation
- biological extinction
- threatened species
- endangered species
- a Breakup of a habitat into smaller pieces, usually as a result of human activities.
- b Species no longer found anywhere on earth; forever.
- c Generally fixed route along which waterfowl migrate from one area to another at certain seasons of the year.
- d Wild species that is still abundant in its natural range but likely to become endangered because of a decline in numbers.
- e Wild species with so few individual survivors that the species could soon become extinct in all or most of its natural range.
5 Multiple choice questions
- Minimum area of suitable habitat needed to maintain the minimum viable population. See minimum viable population.
- So few members remain that the species cannot maintain its ecological role, or members only survive in captivity.
- Species that (1) has naturally small numbers of individuals, often because of limited geographic ranges or low population densities, or (2) has been locally depleted by human activities.
- Estimate of the smallest number of individuals necessary to ensure the survival of a population in a region for a specified time period, typically ranging from decades to 100 years.
- Goal: to protect populations of species in their natural habitats.
Strategy: preserve sufficient areas of habitats in different biomes and aquatic systems.
Tactics: protecting habitat areas through private purchase or government action; eliminating or reducing populations of nonnative species from protected areas; managing protected areas to sustain native species; and restoring degraded ecosystems.
5 True/False questions
intrinsic value → Value of an organism, species, ecosystem, or the earth's biodiversity based on its usefulness to us.
bioinformatics → Applied science of managing, analyzing, and communicating biological information.
keystone species → Species that play roles affecting many other organisms in an ecosystem.
population viability analysis (PVA) → Estimate of the smallest number of individuals necessary to ensure the survival of a population in a region for a specified time period, typically ranging from decades to 100 years.
game species → Type of wild animal that people hunt or fish for, for sport and recreation and sometimes for food.