BSC 2011 Lecture Notes - Lecture 7: Interspecific Competition, Limiting Factor, Niche Differentiation

• School: University of Florida
• Department: Biology - Biological Sciences
• Course: BSC 2011
• Professor: Jennie Demarco

Document Summary

Competition (-/-) a. b. c. d. e. f. g. Use or defense of a resource by an individual that decreases the resource availability to others. 2 species often can not coexist indefinitely on the same limiting resource. Presence of a competitor always reduces population growth rate. In some cases competition causes on species to go extinct. Density dependent population growth reflects intraspecific within species interactions among individuals in a population h. Effect of the other species subtracted in the growth model. Crucian carp increases in muscle mass in the presence of a predator. Presence of predator can indirectly reduce prey population due to cost of induced defenses b. c. d. e. Any factor consumer by an organism and supports increases population growth rates. Interspecific interactions can affect the distribution of species. Phenotypes that gain the most from a + interaction will increase frequency in the population and the population will evolve.