What is Ecology? Flashcards
What is ecology?
a science studying the interactions between organisms and the environment
What are the components of environment?
2 components: biotic (living) and abiotic (non-living)
Order the 4 hierarchical levels of ecology from largest to smallest
ecosystem > community > population > organism
What is organismal ecology?
how individual organisms meet the challenges of the environment
What is an example of organismal ecology?
marine organisms optimizing their salt update and water loss
What is a population?
a group of individuals of the same species living in the same area
What is population ecology?
factors that affect population size and distribution
What is an example of population ecology?
over-harvesting, captive breeding programs, etc.
What is a community?
group of populations of different species living in the same area
What is community ecology?
studies the interactions between species
What are the 3 big interactions between species?
predation, competition, mutualism
What is an ecosystem?
a biological community and its interactions with the abiotic world
What is ecosystem ecology?
energy flow and nutrient cycling
What is an example of ecosystem ecology?
the carbon cycle (nutrient cycling) and the trophic pyramid (energy flow)
What are the 2 approaches to science?
reductionism and holism