Investigating and Conserving Ecosystems

Sampling techniques - quadrats, transects, random and non-random sampling, pit fall traps, Tullgren funnels etc and mark release recapture

Factors affecting population size: the various abiotic and biotic factors are explained, including population growth curves (and logarithms), predator prey cycles and competition.

OCR-A only:

Woodland and Marine conservation (due to timber and fishing industries)

Conservation vs Human Need - Terai Arc in Nepal; Maasai Mara in Kenya; Peat bogs in the UK

Human Activities in Environmentally-sensitive Areas - Antarctica; Galapagos Islands, Ecuador ; Lake District and Snowdonia in the UK.


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biologycarol
biologycarol

I'm a qualified biology teacher and online tutor who makes videos on A level biology topics which are clear in their explanations, straightforward in their format and mark-earning in their exam question hints.

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