Lecture #5

Question 1

Foundation Species

Answer 1

a species that has a strong role in structuring a community by enhancing the survival, growth, and recruitment of other species; POSITIVE impact on other species; creates the foundational habitat

Question 2

Facilitation

Answer 2

interactions between two or more species in which at least one species benefits, and NONE are negatively affected

Question 3

What do foundation species do?

Answer 3

Provide substrate (ex: corals)

Reduce abiotic and biotic stressors (hypoxia, dessication, etc.)

Increase food supply

Question 4

Positive impacts on the community

Answer 4

Higher species biomass, diversity, and abundance

Wider distributional limits

Elevated rates of propagule retention, settlement, and survivorship