BIOL 127 Lecture Notes - Lecture 15: Logistic Function, Hypericum, Rangeland
Document Summary
Competition of the prey species may benefit when the numbers of another competitor are reduced by predators: preys on competitively dominant species, example: beetle, eats wart, takes over rangeland (hypericum) - potentially deadly for organisms to eat it. Therefore takes over and dominates: example: food-for-protection mutualisms between ants and honeydew-producing insects, butterfly larvae have glands on the head, that excrete substances. Ants eat this: example: cotton aphid-fire ant mutualism, plants want to produce chemicals/food, deter herbivores. 2b) species removal - competitive release : reduce area of overlap, get rid of one species, can expand to area of resource axis - indicator of strong interaction taking place, change the resource use, some competitive displacement.
