a population's role in its community. The sum total of a species' use of that biotic and Abiotic resource of its habitat.
a sequence of food transfers from producers through several levels of consumers in an ecosystem
make own food
only eats vegetation
only eats meat
Heterotrophs (not in all ecosystems)
An animal or organism that eats dead organisms
bacteria or other organisms that decompose dead organisms
dead organisms to gets eaten/decomposed
food webs vs. food chains
food webs are more specific to one single ecosystem, when food chains are briefer and can compare too many different ecosystems.
Eats both meat and vegetation
the amount, or mass, of organic material in an ecosystem
the rate at which an ecosystem's plants and other producers build biomass, or organic matter
As enegery transfers up trophic levels, only 10% of the energy gets transfer up each level. E.g. producer has 100 energy, primary consumer gets 10 energy.
The movement of nutrients/chemicals in an ecosystem
an Abiotic reservoir of nutrients in an ecosystem
The movement of carbon in an ecosystem
the movement of phosphorus in an ecosystem.
the movement of water through an ecosystem.
the movement of nitrogen in an ecosystem.
Major types of ecosystems that cover a large geographic region
Tropics of cancer(northern) Tropic of Capricorn(southern)
latitudes between the tropics and the arctic circle in the north and the Antarctic circle in the south. Regions with milder climates than tropics or polar regions
tropical forest, savanna, desert, chaparral, temperate grassland, temperate deciduous forest, coniferous forest, tundra
fresh water and marine water
the scientific study of the interactions between organisms and their environments
nonliving chemical and physical factors
living factors, all other organisms that are part of an individual's environment that isn't abiotic
the branch of ecology concerned with the morphological, physiological, and behavioral ways in which individual organisms meet the challenges posed by their biotic and abiotic environments
a group of individuals of the same species living in a particular geographic area
the study of populations in relation to the environment, including environmental influences on population density and distribution, age structure, and variations in population size.
all organisms that inhabit a particular area
the study of how interactions between species affect community structure and organization
all abiotic factors and the community of species in a certain area
the study of energy flow and the cycling of chemicals among the various biotic and abiotic factors in an ecosystem.
global ecosystem- the sum of all the planet's ecosystems, all life and where it lives
the process of an organism's adjustment to an abiotic factor
the number of individuals of a species per unit area or volume