19: Disturbance and Succession
- University of Oklahoma
- Zoology 3403
- 19: Disturbance and Succession
Last Modified: 2011-12-13
-Regeneration following a disturbance: remove vegetation, not the soil.
-Tolerance: first-come, first-served. All species can colonize regardless of other species present. Competition, longevity determine climax community.
-Inhibition: early species inhibit/ block colonization by later species. Random colonization order is important. Longevity drives succession.
-Soil depth, organic content, moisture, and nitrogen increased.
2. Ratio biomass / productivity increases. Biomass increases, productivity increases.
3. Net accumulation biomass slows, stops.
4. Greater proportion nutrients in organic matter than soil.
2.Colonization: arrival of seeds, organisms
4.Reaction: effects of organisms on the environment
5.Stabilization: results in a climax community
(2) Dominance Controlled: control would relate more to competitive ability
-Seed mortality rate is inversely proportional to seed weight. Lighter seeds have higher mortality than heavier seeds.
-Many seres in different local environments converge into the same climax community.
-End point (climax) is determined by topography and climate.
Words From Our Students
"StudyBlue is great for studying. I love the study guides, flashcards, and quizzes. So extremely helpful for all of my classes!"
Alice, Arizona State University
"I'm a student using StudyBlue, and I can 100% say that it helps me so much. Study materials for almost every subject in school are available in StudyBlue. It is so helpful for my education!"
Tim, University of Florida
"StudyBlue provides way more features than other studying apps, and thus allows me to learn very quickly! I actually feel much more comfortable taking my exams after I study with this app. It's amazing!"
Jennifer, Rutgers University
"I love flashcards but carrying around physical flashcards is cumbersome and simply outdated. StudyBlue is exactly what I was looking for!"