3.1 Study Guide Flash Cards
Study
Interspecies Definition
Between species
Community Definition
All the living things that live together in one place
Community Ecology Definition
The study of interaction among all populations in an environment
Niche Definition
The biotic and abiotic resources that a species uses
Job of Niche in Community
What, When, Where and How the species use the resources
Phytness
How well a species reproduces
Realized Niche
- The actual resources
- The reality
Fundamental Niche
- The potential
- Possession of resources a species could use
When does Niche partitioning occur?
Niche partitioning occurs when niche overlap becomes costly
Gause’s Competition Exclusion Principle
“No two similar species can occupy the same niche at the same time”
The meaning of Gause’s Competition Exclusion Principle
If a niche overlaps completely then one of the species will go extinct,
Competition Relationship
(Negative/Negative)
Mutualism Relationship
(Positive/Positive)
Commensalism
(Neutral/ Positive)
Predation and Parasitism
(Negative/ Positive)
Competition Example
Different types of Elk eat the same type of grass
Mutualism Example
Butterfly eats nectar from a flower then spreads the flowers pollen
Commensalism Examples
Lincoln algae growing on a tree
Predation / Parasitism Examples
A hawk catches a mouse and eats it / A mosquito feeds on a human
Endosymbiosis Defintion
One or more species lives inside other species cell (cells inside cells)
Symbiosis Definition
Two or more species share a close physical interaction
Non-Symbiosis Definition
Interaction of organisms that live apart from one another
Factualitive Definition
Receives benefits from relationship but it not required to be in that relationship
Obligatory Definition
Species are entirely dependent on each other
