Ecology Flashcards
(21 cards)
Ecology
The study of the interactions between living things and their environment
Population
All the members of the same species in an area
Community
Contains many different
Populations
Habitat
The place which an organism lives
Ecosystem
Consists of a community of organisms and their environment
Biosphere
The part of the planet in which life is found
Food web
The series of interconnected food chains
Food chain
Feeding relationship between organisms through which energy is transferred
Niche
Specialised role in which the organism plays in the community in its ecosystem
Qualitative survey
Records only the presence or absence of species
Quantitative study
Record the number of each species
Competition
Occurs when two or more organism struggle for a resource that is in scare supply in a habitat
Intra specific competition
Takes place between members of the same species
Inter specific competition
Competition involving different species
Contest competition
Physical confrontation in which one organism gets all the resource where is the second is left without any
Scramble competition
All the organisms competing get some of the resource, but not all
Predation
Catching killing and eating of another organism
Parasite
Organism that feeds from and harms another organism
Symbiosis
Occurs when two organisms from different species live in close association where at least one of them benefits
Pollutant/polloution
Any harmful addition to the environment
Conservation
Management of organisms