Ecology Video Notes Flashcards
Ecology
study of the relations of organisms to one another and to their physical environment
Interdependence
survival of species is dependent on other living organisms and nonliving components
Models
represent or describe components of an ecological system
Levels of Organization (broad-narrow)
biosphere, ecosystem, community, population, organism
Biotic Factors
living parts of the habitat
Abiotic Factors
nonliving parts of the habitat
Generalists
eat variety of foods (ex. pigs, raccoons)
Specialists
eat few or even one type of food (ex. pandas, koala)
r
growth rate
N
of individuals in a population
K
carrying capacity
r-selected Species
unstable enviornment, high fecundity, small body size, early maturity, short gen. life time
K-selected Species
stable environment, large body size, long life expectancy, high parental care, fewer offspring