1.1 Species Interactions (BIO)

Mutualism

a symbiotic relationship in which both species benefit

Commensalism

an interaction that benefits one species and does not affect the other species at all

Competition

an interaction that harms both species

Parasitism

an interaction that harms one species and benefits the other species

Exemplified by moss growing on a tree trunk in a forest.

commensalism

Exemplified by starlings displacing bluebirds from nesting sites

competition

intraspecific

competition between the same species

interspecific

competition between two different species

Exemplified by bees consuming nectar and carrying pollen from one flower to another

mutualism

Exemplified by ticks feeding on a deer

parasitism

Resource partitioning

when similar species settle into separate niches that let them coexist - using the resources in different ways, places, or at different times can reduce the negative impact of competition on survival

Predation

where a predator eats its prey