Transcript Principles of Ecology - Paint Valley Local Schools

Heading
IN 167
Vocabulary
Important Info
Chapters 3, 4, 5, & 6

Ecology is the study of interactions between
organisms and their environment.
1. Biosphere – portion of the Earth supporting life
2. Biotic factors
a. All organisms inhabiting the environment
b. The “living” things in the environment
c. Each organism adapts to its part of the biosphere
3. Abiotic factors
a. Nonliving parts of the environment
b. Can determine which species will survive
examples: rainfall, temperature, light, soil
Abiotic Factors
Biotic Factors
ECOSYSTEM
1.
Species: group of organisms that can
2.
Populations
2.
Community
3.
Ecosystem
breed and produce fertile offspring.
a. A group of organisms of the same
species living together
b. Must compete for resources
a. Several populations that interact
b. Changes in one population will cause
changes in the others
a. Interactions between populations and
their surroundings
b. 2 main types:
1. Terrestrial – land
2. Aquatic – fresh or salt water
Levels of Biological Organization
1.
Niche

The role an organism plays in
the environment
(Its “job” in the community)
2.
Habitat

Place where an organism lives
Three
Species of
Warblers and
their niches
Cape May Warbler
Feeds at the tips of branches
near the top of the tree
Bay-Breasted Warbler
Feeds in the middle
part of the tree
Spruce tree
Yellow-Rumped Warbler
Feeds in the lower part of the tree and
at the bases of the middle branches
Earthworm Example


Habitat of the earthworm: in the soil.
Niche: To aerate ( add air to or oxygenate) the soil.