before it's in the papers"
August 03, 2010
TO THE WORLD SCIENCE HOME PAGE
Endangered species: selected
a person who studies living organisms and their relationship to one another.
not wild; not living in its natural habitat.
all living things and their environment, in an area of any size, linked together by energy and nutrient flow.
a species which is in danger of extinction throughout all or most of its range.
no longer in existence.
the arrangement of food, water, shelter, and space necessary for a species' survival.
illegal killing or collection of plants or animals.
seasonal movements from one region to another.
the wide variety of living things that make up an ecosystem.
an area set aside for the purpose of conserving species and their habitat.
a wildlife management technique used to place species back into an area where they had disappeared or become dangerously low in numbers.
Old growth forest:
an undisturbed forest with trees that are more than 200 years old. It is characterized by fallen trees, trees with broken tops, and mature and dying trees.
chemicals used to control populations of species that are believed to be harmful to human beings or human activities.
an animal that lives by killing and eating other animals for food.
an animal that is killed and eaten by other animals.
a population of individuals that are more or less alike, and that breed and produce fertile offspring under natural conditions.
a species likely to become endangered if it is not protected.
any land area that tends to be regularly wet or flooded.