BIOB50H3 Lecture Notes - Lecture 17: Indian Ocean, Secondary Succession, Primary Succession
Document Summary
The mountain is part of a geologically active cascade range. May 18 1980, all of that rich diversity disappeared. The volcano erupted causing the largest avalanche in history. Destroyed many of the communities that had occupied that mountain before. New habitats had formed with little to no life to be found. Ecologists were able to observe and record the biological changes observed on this mountain. These scientists have worked for several years and have begun to see re-emergence of life on this mountain range. Communities are always changing with some communities changing more than others (case. This chapter focuses on the agents that facilitate changes in communities. Communities can undergo changes from small changes (rise to dominance of a certain species) to large changes (large death rate of a species) Succession is the change in the species composition of communities and is influenced my both biotic and abiotic factors. Abiotic factors : climate, soils, nutrients, water etc.
