Ecology Flashcards
(42 cards)
Ecology
The scientific study of interactions among organisms and their enviroments, including relationships between living and non living things.
Ex soil,plants
Ecosystem
Interactions among the populations and abiotic factors in a community.
Ex forest
Interact
Two or more organisms acting on each other.
Deforestation
The clearance of a forest.
Ex fracking purposes
Population
Species living in an area
Sidney’s squirrel population
Community
A group of organisms occupying an area
Ex deer and bears
Biodiversity
The variety of organisms in an ecosystem.
Plant population=variety of plants species
Habitat
Where an organism lives
Ex trees
Niche
An organisms role in its enviroment
Ex plants to produce
Host
The organism that is infected with the parasite
Ex deer with ticks.
Scavenger
An animal that feeds on dead carcasses left by the predator. Scavengers rarely kill their prey
Ex vultures
Decomposer
An organism that decomposes a dead body to get energy.
Ex bacteria
Carrying campacity
Largest number of organisms from a species that can survive for long periods of time.
Ex bears
Primary consumer
Organisms that eat autotrophs
Ex rabbit eats grass
Secondary consumer
Eats herbivores eats primary consumers
Ex mole
Tertiary consumers
Eats primary and secondary consumers, carnivores
ex snake
Food chain
Used to show the energy flow through the trophic levels
Ex sun-grass-rabbit-hawk-snake
Food web
Used to show relationships between organisms
Energy pyramid
Used to model energy flow through trophic levels.
Competition
The fight between organisms for something
Ex food, habitat
Symbiosis
The long term interaction between two different species
Ex bear and deer
Predation
The interaction between two organisms in which one is the prey and one is the predator.
Predator
An organism that feeds on other organisms.
Prey
The organism that is attacked and eaten by the predator.
