Chapter 5 Biodiversity, Species Interaction, & Population Control

Competition

'never a good thing', common use of a resource in short supply.

Interspecific Competition

Competition between 2 different species.

Intraspecific Competition

Competition between members of the same species.

*Competitive Exclusion Principle

No 2 species can have the same niche.

Niche

Specific job or activity an animal does, or specializes in.

Nocturnal

Active during the night.

Diurnal

Active during the day

Resource Partitioning

Using resources at different times, in different places, in different ways. Reduces competition.

Predation

One species feeds on another.

Predators feed on...

Prey.

Cryptic

colored to blend in with the background.

Peregrine Falcon

Fastest bird, can go over 100MPH.

Rock Dove

New name for pigeons.

Coevolution

Simultaneous evolution of 2 species. Ex. Flowers and pollinators.

Parasitism

-Parasites are smaller than hosts.
-Parasites rarely kill hosts.

Lamprey

Parasitic fish, sucks body fluid out of bigger fish.

Mutualism

-flowers and pollinators
-nutrition
-protection relationship
-Probiotics

Commensalism

the relation between two different kinds of organisms when one receives benefits from the other without damaging it.

Population Change

(Birth+Immigration)-(Death+Emigration).

Carrying Capacity

Maximum population a given habitat can sustain.

Ecological Succession

is the replacement of one community by another.

Pioneer Species

First step in succession

Mature/ Climax Community

stable, end of succession community.

Primary Succession

the sequential development of communities in a bare area that has never been inhabited by a community of organisms.

Secondary Succession

the sequential development of a community in an area where natural vegetation has been removed or destroyed.