L11 - Species Interactions Flashcards
what is Competition?
A type of species interaction
Interaction between two species where unequal use of the same resources leads to adverse effects for on of the other species.
what are the two types of
Competition species interactions?
Intraspecific Competition
- between two member of the same species
Interspecific Competition
- Between two members of different species
Interspecific competition
competition between two members of different species
intraspecific competition
competition between two members of the same species
What are the two types of competition
resources Competition
- competition for resources in short supply
Interference Competition
- Species harm each other in the process of accessing resources
Resource Competition
Competition for resources in short supply
Interference competition
species harm each other in the process of accessing resources.
Allelopathy
The release of growth or germination inhibiting compounds by competing species
Competitive Exclusion
when species are grown together one is excluded.
What is Gause’s principle (1932) and what is a core problem with it
Complete Competitors cannot coexist. The concept of Compete Competitors is not possible.
describe the N-dimenional Hypervolume
describes the position of a Niche in a dimensional space, where each N is defined by a Condition or resource in an environment
What is the Realized Niche
That portion of the fundamental niche occupied by a species when competitors and predators are present.
The actual area a species occupies
Niche Overlap
Measure of how much a species overlap in terms of resource use
what is Resource Partitioning
If two competing species co-exist in a stable environment they do so as a result of niche differentiation. think of the beer example
what is facilitation in an ecology perspective
the positive effect of one species on another species. This can be through alterations in environmental conditions
