GEOG 203 Lecture Notes - Lecture 3: Betula Alleghaniensis, Ecological Succession, Lichen

• School: McGill University
• Department: Geography
• Course: GEOG 203
• Professor: Tim Moore

Document Summary

A disturbance will remove biota from a habitat and possibly change the physical nature of the habitat. The pattern of change for some biomes is a predictable one. This is known to be an ecological succession. Is more common is nature, it occurs as a result of less severe disturbances such as fire and windstorms- natural disturbances. The pioneers are plants that require full sunlight. Their nutrient demands are low and they reproduce quickly. In the final tree stage, the replacements are shade-tolera(cid:374)t trees (cid:862)cli(cid:373)a(cid:454) co(cid:373)(cid:373)u(cid:374)it(cid:455)(cid:863) What is (cid:373)ea(cid:374)t (cid:271)(cid:455) the e(cid:454)p(cid:396)essio(cid:374) (cid:858)(cid:272)li(cid:373)a(cid:454) (cid:448)egetatio(cid:374)? (cid:859) Can you describe the process of seco(cid:374)da(cid:396)(cid:455) su(cid:272)(cid:272)essio(cid:374) i(cid:374) . Natural vegetation patterns we observe are a function not of just physical limits, but also of disturbance natural and human. A disturbance will remove biota from a habitat and, possibly change the physical nature of the habitat environmental changes.