Succession Flashcards
(5 cards)
Stages of succession
bare rock,coloniser, pioneer (lichen / mosses), intermediate (grasses->shrubs->young trees and pines), climax (mature trees)
Use the investigation to describe the process of succession
the pioneer species increases then decreases
pioneer makes the conditions less hostile
pioneer species outcompeted
new species increases and other decreases
Why is there more variety of species at climax compared to pioneer
greater variety of food sources
more niches/variety of habitats
Conditions for mark-release-recapture to be valid
marking not removed/has no effect on survival
limited immigration
sufficient time for individuals to mix
no births/deaths
sampling method is the same
mark-release-recapture equation
first sample x second sample
2nd time marked
