Skip to content
Login Register

#ecological outcome

2 public questions tagged with this topic.

Lotka Volterra Model

Species 1 wins when:

“α12 > α21” for species 1 wins when. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Coexistence requires stabilizing differences that make each species limit itself more strongly than it limits its competitor, or an equalizing process that keeps fitness differences small. Without such mechanisms, persistent competitive asymmetry tends toward exclusion. The remaining alternatives—“α21 > α12”, “K1 < K2”, “N1 is smaller”—refer to different states, processes, or scales and therefore do not express th

Ref: Ecology: Concepts and Applications, Molles, 9th Ed., Ch. 13-14

View Details
Lotka Volterra Model

If α12 = 0.5 and α21 = 0.5, the outcome is:

“Stable coexistence” for if α12 = 0.5 and α21 = 0.5, the outcome is. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Coexistence requires stabilizing differences that make each species limit itself more strongly than it limits its competitor, or an equalizing process that keeps fitness differences small. Without such mechanisms, persistent competitive asymmetry tends toward exclusion. The remaining alternatives—“Species 1 wins”, “Species 2 wins”, “Unstable coexistence”—refer to different states, p

Ref: Ecology: Concepts and Applications, Molles, 9th Ed., Ch. 13-14

View Details