Communities
What is species richness
The number of species in a community
Which niche is the "ideal" niche?
Fundamental niche.
What is predation?
One organism feeding on another.
What is symbiosis?
A long-term relationship between two species.
What are autotrophs?
Organisms that make their own food (producers).
What two factors make up species diversity?
Species richness+ species evenness (relative abundance)
What principle states that have no two species can occupy the same niche indefinitely?
The Competitive Exclusion Principle.
What defense involves blending into surroundings?
Camouflage.
Define Mutualism.
Both species benefit.
What percentage of energy moves to the next trophic level?
~10%
What is a habitat?
The place where an organism lives.
What is resource partitioning?
Division of resources to reduce competition.
What is warning coloration?
Bright colors signaling danger or toxicity.
Define Commensalism
One benefits, the other is unaffected.
Which biogeochemical cycle includes transpiration?
Water cycle
What is a community?
A group of interacting populations living in the same environment.
Which niche is smaller; fundamental or realized?
Realized niche.
Define Batesian mimicry.
A harmless species mimics a harmful one.
Define parasitism
One benefits while harming the other.
What is eutrophication?
Nutrient over-enrichment causing algal blooms.
What does species composition refer to?
The specific species that make up a community.
Name on biotic factor that limits a niche.
Predation, Competition, Parasitism.
Define Mullerian mimicry
Multiple harmful species resemble each other.
Give an example of mutualism.
Bees and flowers.
Nitrogen fixation produces what?
Ammonium (NH4)