4.1.2 - Measuring Biodiversity Within A Habitat Flashcards
(9 cards)
What Is A Habitat?
Place where an organism lives.
How Is Species Diversity Measured?
Sampling.
What Can Be Used When Sampling?
(4 Points)
~ Plants -> Quadrats.
~ Flying Insects -> Sweepnet.
~ Ground Insects -> Pitfall trap.
~ Aquatic Animals -> Kick-Sampling.
Describe The Process Of Sampling
(3 Points)
~ Partake in random sampling.
~ Count number of individuals of each species, in the sample area.
~ Repeat the process, and use the results to estimate.
Why Should Sampling Be Random?
To aviod sampling bias.
How Can Random Sampling Be Done?
(2 Points)
~ Converting the sampling area, into a grid format.
~ Use a random number generator, to pick sample points.
What Does The Heterozygosity Index Measure?
Genetic diversity.
What Are Heterozygotes?
Organisms that have two different alleles, at a particular locus.
What Is The Formula For The Heterozygosity Index?
No. Of Heterozygotes / No. Of Individuals In The Population