FUNDAMENTALS OF ECOLOGY Flashcards
_______ means house or place to live
oikos
study of the relation of organisms or groups of organisms to their environment
ecology
science treating of reciprocal relations of organisms and the external world
Ernst Haeckel
study of the structure and function of nature
Eugene Odum
genes, cells, organs, organisms, populations, communities
biotic level
matter and energy
abiotic components
genetic systems, cell systems, organ systems, organismic systems, population systems, ecosystems
biosystems
ecosphere, all of Earth’s living organisms interacting with the physical environment as a whole so as to maintain a steady-state system intermediate in the flow of energy between the high energy input of the sun and thermal sink of space
biosphere
study of individual organism
autecology
study organisms as a group which associate together as a unit
synecology
displays order and harmony, dynamism, and balance; unit of natural space where organisms react with each other and with the physical environment
ecosystem
ecosystem is also considered as?
biome type in specific location
ecosystem is composed of
producers, consumers, scavengers, and decomposers
synthesize organic matter from inorganic materials
producers
heterotrophs, may be herbivore, carnivore, or omnivore
consumers
animals that feed on dead animals
scavengers
big scavengers which are facilitating access to food
ecological integrators
reconverts organic matter into inorganic substances
decomposers
home and marks the area, locale where animals can find shelter
habitat
specific roles being performed in the ecosystem; designates the definite function of an organism
ecological niche
trace the movements of substances at the elemental and molecular level; cycles that integrate the biotic and abiotic into one cohesive whole
biogeochemical cycle
processes that change nitrogen
lightning and nitrogen fixation
converts ammonia to nitrates
nitrifying bacteria
convert nitrate to atmospheric nitrogen
denitrifying bacteria
CO2 is incorporated into plants through photosynthesis
carbon cycle
agent of movement of nutrients
water
main parts in water cycle
evaporation - condensation - precipitation