Measuring Biodiversity
measure of diversity that considers both richness and evenness of species
What is Simpson's Diversity Index
Heiracharchical rank-based structure of classifying organisms
What is Linnaean Classification?
uses a random number generator
What is random sampling?
energy is passed through a series of animals.
What is a food chain?
role and space occupied by an organism
What is a ecological niche?
Number of different species in an ecosystem
What is specie abundance?
group of organisms that consists of a common ancestor and all its lineal descendants
What is a clade?
samples taken from uniform intervals
What is systematic sampling?
Absorbs nitrogen (N2) from atmosphere and converts to nitrates (NO3-)
What are nitrogen-fixing bacteria?
no two species occupy exactly the same niche
What is the competitive exclusion principle?
probability that a species will be found in a single quadrat
What is percentage frequency?
bifurcation
common ancestor
physical change
What are the three common assumptions of cladistics?
identifies different areas in an ecosystem that are sampled separately
What is stratified sampling?
rate at which solar energy is converted to photosynthetic products
What is Gross Primary Productivity (GPP)?
unique and crucial role in an ecosystem
What is a keystone species?
Genetic, Species & Ecosystem
What are three levels of biodiversity?
branch of phylogeny that analyses genetic and heriditary differences in DNA
What is molecular phylogeny ?
Considers: size & number of samples, random number generator, counting criteria, calibrating equipment
What is "minimising bias"
Energy available to be passed on by producers to Primary consumers
What is Net primary Production (NPP)?
used to estimate mobile species population.
What is the Lincoln Index?
Total number of individuals in the ecosystem
What is N?
short, life, early maturity, many offspring, coloniser
What is a r-strategist?
Difference in DNA or amino acid sequences
What is molecular, species evolutionary relatedness?
Metabolism (heat) & detritus( uneaten portion or waste)
What is energy loss from a trophic level?
population levels off near carrying capacity.
What is logistic population growth?