5 Written questions
5 Matching questions
- species approach
- population viability analysis (PVA)
- wildlife management
- biological extinction
- endangered species
- a Wild species with so few individual survivors that the species could soon become extinct in all or most of its natural range.
- b Manipulation of populations of wild species (especially game species) and their habitats for (1) human benefit, (2) the welfare of other species, and (3) the preservation of threatened and endangered wildlife species.
- c Use of mathematical models to estimate a population's risk of extinction.
- d Species no longer found anywhere on earth; forever.
- e Goal: to protect species from premature extinction.
Strategies: identify endangered species; protect critical habitats.
Tactics: legally protecting endangered species; propagating endangered species in captivity; reintroducing species back into suitable habitats.
5 Multiple choice questions
- Value of an organism, species, ecosystem, or the earth's biodiversity based on its usefulness to us.
- Wild species that is still abundant in its natural range but likely to become endangered because of a decline in numbers.
- Wild species tamed or genetically altered by crossbreeding for use by humans for food (cattle, sheep, and food crops), pets (dogs and cats), or enjoyment (animals in zoos and plants in gardens).
- Mostly trees that can tolerate shade and form a fairly stable complex forest community.
- requires the federal government to protect actively each of the hundreds of species listed as endangered-regardless of the economic effect on the surrounding towns or region.
5 True/False questions
keystone species → Species that play roles affecting many other organisms in an ecosystem.
CITES treaty of 1975 → Convention on International Trade in Endangered Species. Lists (1) some 900 species that cannot be commercially traded as live specimens or wildlife products because they are in danger of extinction and (2) restricts international trade of 29,000 other species because they are at risk of being threatened.
adaptive radiation → Species that migrate into an ecosystem or are deliberately or accidentally introduced into an ecosystem by humans.
ecological extinction → Species no longer found anywhere on earth; forever.
early successional plant species → Mostly trees that can tolerate shade and form a fairly stable complex forest community.