Modelling Interspecific Competition

*COVID-19, Notice to instructors* I've had several instructors express interest in these competition and predation videos in light of their transition to online instruction. I also have several activity handout that present students with scenarios to apply content from these videos. Please contact me at [email protected] from your faculty email account if you are interested and I am happy to share. Good luck!

This video tutorial provides an introduction to Lotka-Volterra competition modelling, including derivations of zero-growth isoclines and how to make predictions based off of these plots. It was presented to an introductory undergraduate ecology class immediately following a lecture on logistic population growth.

Answers to the problems at the end of the video:
1) The Bison will out-compete the elk and drive them to extinction.
K1 = 200, K2 = 100, K1/α = 50, K2/β = 100
2) This scenario would result in species co-existence.
K1 = 1500, K2 = 500, K1/α = 3000, K2/β = 2000
Intercept: 1428 bluegill and 143 small mouth bass (see comment below for more details)