population science cards
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Definition of population?
Group of individuals of the same species in the same area at the same time rely on the same resources.
Abiotic factors that affect a population?
sunlight&temperature, precipitation/water, soil/nutrients
Biotic factors that affect a population?
Other living organisms, prey(food), competitors, predators, parasites, and diseases.
Random sampling formula:
of organisms in sample / area of sample = total #of organisms / total area
Mark and recapture formula?
Total # marked / total population size = #marked in recapture/ total recaptured.
Population density formula?
The number of individuals/ area or volume occupied
Three different types of population spacing?
Uniform, clumped, and random
Example of uniform?
Penguins, and seagulls
Examples of clumped?
Wolves, fish, flowers, and bison.
Examples of random?
Dandelions, leaves