2.1 Flashcards
what may affect a population?
abiotic factors such as temperature, sun, precipitation, and climate, biotic factors such as other organisms(including prey, predators, disease, and competitiors), and intrinsic factors like adaptations
how do you calculate population by random sampling
of organisms in sample/sample ares = total # of organisms (x)/total area
what is a quadrat
a section of an area sectioned off the count the amount of whatever organism within it
what is a population
the number of individuals of the same species in the same area at the same time
what is the formula for calculating population by the mark and recapture method
total marked/x = # recaptured with marks/total recaptured
what are these types of distribution
uniform, random, and clumped
why might a population have a clumped distribution
the organisms may be gathered around a resource, or they may be social and live in groups
why might a population have a uniform distribution
the organisms may be territorial or there may be a scarcity of resources