Transcript III. The Ecosystem

III. The Ecosystem
A. Species
1. A species is a group of organisms so
similar that they are capable of
interbreeding
2. Share characteristics, habitat, and
range
3. A Subspecies is a even smaller
division based on tiny differences
a. Things like domestic organisms
b. Lumpers- do not recognize
subspecies(tigers are tigers)
c. Splitters- break organisms down
(Siberian, Sumatran, Indian tigers)
4. Species must be able to
interbreed with each other
a. Argument:
what about
geographical
limitations?
B. Populations and Communities
1. All of the members of one species in
an area make up a population.
a. Population density is the
amount of a species in a given area
2. All the populations in an area make a
community.(plants, animals, fungi, etc.)
3. Ecosystem- all biotic and abiotic
factors in an area
a. high variety = high biodiversity
D. The High School Ecosystem
1. Break down Crestwood High School
into species and subspecies, as well as
what makes the population, community,
and the ecosystem as a whole