CHAP 14 Competition

Intraspecific competition (-)

Competition within the same spcies that compete for food, mates, territory

Interspecific Competition (-)

Compeition between two different species for food, space, water

Exploitation Competition

Occurs indirectly when organisms compete for ahsared limited resource resulting in one species reducing the availability of resources for others

Interference competition

occurs directly when organisms try to prevent others from accessing a resources

Amensalism (0/-)

When one organism is harmed or affected, while the other remain unaffected

Resource Partitioning

Competing species are more likely to ocoexist if they use resources differently where species divide and speacialize in resources to reduce competition

Competitive exclusion principle

Two species that use a limiting resource in the saem way cannto coexist indefinietly

Character Displacement

An evolutionary process where similiar species that compete from resources develop distinct traits over time reducing competition

The Lokta-Volterra Competition Model

If a and b =1 then species 1 and 2 are equal competitiors

if a=3 then it would take 3 individuals of species 1 to have the same competitive effects as one individuals of species 2

if b=3 then it would take 3x the number of species 2 to have the same competitve effect as an individual species 1

Species Coexistences

If both species are equally strong competitors for the same resource, then they can only coexist when they have similiar carry capacities