An innate, stereotyped behavior triggered by a stimulus
What is a fixed Action pattern?
Number of individuals per unit area
What is population density?
A relationship where both species benefit
What is mutualism?
Cold biome with permafrost and no trees
What is the tundra?
Species at immediate risk of extinction
What are endangered species?
The environmental trigger of a fixed Action pattern
What is a sign stimulus?
Maximum population size an environment can support
What is carrying capacity?
Principle stating two species cannot share the same niche
What is the competitive exclusion principle?
Warm, high-rainfall biome with high biodiversity
What is a tropical rainforest?
Destruction of natural environments
What is habitat loss?
Learning where response to a repeated stimulus decreases
What is habituation?
Growth that slows and levels off at carrying capacity
What is logistic growth?
First organisms to colonize a disturbed area
What are pioneer species?
Sunlit open-water zone of a lake
What is the limnetic zone?
Harmful non-native organisms
What are invasive species?
Learning that pairs two stimuli together
What is Classical Conditioning?
Factors that affect populations regardless of density
What are density-independent factors?
Interconnected feeding relationships in an ecosystem
What is a food web?
Area where freshwater and saltwater mix
What is an estuary?
Practice of protecting and restoring habitats
What is habitat preservation?
Long distance movement requiring orientation and navigation
What is migration?
Method of estimating population using capture, tag, and release
What is the mark-recapture method?
Percentage of energy transferred between trophic levels
What is 10%
Seasonal mixing of lake layers
What is lake overturn?
Removing organisms faster than they reproduce
What is overexploitation?