ENVS200 Lecture Notes - Lecture 6: Gut Flora, Oxpecker, Seed Dispersal

• School: University of Waterloo
• Department: Environmental Studies
• Course: ENVS200
• Professor: Brendon Larson

Document Summary

Lecture 6 envs 200 | professor larson. If you add a fertilizer, competition is reduced. Predation and community structure: predator-mediated coexistence: explain why the most species tend to be found in communities subject to an intermediate intensity of grazing. If the grazing intensity is really high, then the plants cannot replenish in time to support the quantity of species. Is grazing is low, then there is interspecific competition. Some of the really competitive species are taking over others: the predator is affecting reducing the interspecific competition - reducing the capacity of certain species to dominate and take over. Flower gets a reproductive gain as well as energy. But once they are on the flower the handling time is essentially zero for a&b. In d the bees have learned to vibrate their body to access the nectar. In e the bees know how to open up the tube and crawl inside to collect the nectar.