BIOL 1001 Lecture Notes - Lecture 49: Niche Differentiation, Character Displacement, Interspecific Competition
4 Apr 2017
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Document Summary
Spp may have different interactions/roles at different life stages. Interspecific interactions: spp are agents of natural selection. Spp aren"t just adapt to environment (abiotic), also adapted to other species around them. Coevolution: 2 species that are interacting and influencing the adaptation of the other species. Interacting species influence population size & distribution of other species. Sum habitat requirements required for spo survival and reproduction -> defined by both abiotic (physical) & biotic factors. Ex: water buffaloes & egrets: they ride on back of water buffaloes. If the egret fly"s away, it indicates to the buffalo of predators. Helps them take nutrients & minerals in plants to grow larger. The exploit each other for their own good. Symbiosis is living together in close union of two dissimilar organisms. Obligate mutualism cannot survive in the absence of the other. Facultative can survive in the absence or presence of the other. In higher water temperature, algae (zooxanthellae) ejected from host- death of coral.
