ENVS 1200 Lecture Notes - Lecture 8: Intraspecific Competition, Wandering Albatross, Niche Differentiation

• School: York University
• Department: Environmental Studies
• Course: ENVS 1200
• Professor: Anders Sandberg

Document Summary

Competitions are animals plants insects move for a piece of pie. (5 syllables, 7, 5) ecological. Intraspecific competition (within a species: interference competition (a vs. b) this has a negative impact on both of them (expending energy, exploitative competition (indirect) (a vs. b) The more resources an individual has the more fit is it (fitness=ability to reproduce) Intraspecific: going to have competition if resources are limited when you hit k (max pop. ) you will get a density dependent response (such as mortality). Competitive exclusion principle: states no two species identical ecologies can coexist or two species with similar needs for the same limiting recourses cannot coexist. Niche: combination of variables that allows the individual to survive biotic and abiotic. If the habitat is an organisms address ,then its niche is its job. Fundamental niches: (where physical conditions are ideal for a species in the absence of interaction/competition/predation) Realized niches: interactions which restrict the environments in which a species lives.