Ecological Succession

2. a variety of organisms in a particular environment
4. a rocky area with little vegetation that new organisms can inhabit
6. something that does not derive from organisms
12. producers that grow early in secondary succession and can grow large enough to create canopies later on
14. the various organisms that make up an area during succession
15. a geological process where earth is worn away and can create new areas for life to inhabit
17. the first species that arrive in a new environment
20. something that comes from nature
23. type of succession where plants and animals recolonize an environment after a disaster
25. how the structure of a biological community changes over time

1. a species in which a community greatly depends on
3. a community of interacting organisms and their physical environment that comes after succession has finished
5. a community where the populations of plants and animals remain stable and exist in balance
7. a pioneer organism that grows on the soil
8. some of the smallest organisms that inhabit an environment after primary succession
9. a process where dead organisms are broken down to simpler organic matter
10. an umbrella like cover that comes towards the end of succession
11. large producers that grow from pioneer species and can create a canopy
13. when the organisms in the environment have become balanced at the end of succession
16. two organisms functioning as a single stable unit
18. the base of an environment that new plants and shrubery can grow on
19. an action that messes with the balance of an ecosystem and can causes succession to start over
21. type of succession where plants and animals first colonize a barren landscape
22. all of the smaller shrubbery and producers underneath the larger canopy of the forests that grow first in succession
24. a species that starts growing early on in secondary succession