GEO 101 Chapter Notes - Chapter 23: Exosphere, Biogeographic Realm, Commensalism

• School: University at Buffalo
• Department: Geography
• Course: GEO 101
• Professor: Bennett Sean

Document Summary

Biogeographic processes: describe the impact of water and temperature in ecological biogeography. Bioclimatic frontier: bioclimatic frontier a geographic boundary showing the limits of the potential distribution of a species, e. g. distribution of ponderosa pine controlled by rainfall, critical level of climatic stress beyond which a species cannot survive. Disturbance (page 282: disturbance includes fire, flood, volcanic eruption, storm waves, high winds and other infrequent catastrophic events that damage or destroy ecosystems and modify habitats. Intraspecific competition competition between individuals of same species: predation one species feeds upon another, parasitism one species gains nutrition from another without the immediate death of the host, herbivory grazing of plants. 2: allelopathy chemical toxins produced by a plant inhibit the growth of another. Symbiosis: symbiosis positive interactions between species, commensalism one species benefitted and one unaffected, protocooperation benefits both parties, mutualism one or both species cannot survive alone.