Ecology Notes 1 Flashcards
Ecology
The study of organisms and their interactions with each other and their environment
Habitat
The specific environment of a species
Population
All of the individuals of a single species that live in a specific area
Community
All of the populations living in any one area at the same time
Ecosystem
The combination of all of the communities of an area
Biosphere
All of Earth’s ecosystems
Ecological Organization
Organism, Population, Community, Ecosystem
Biotic
Living
Abiotic
Non-living
Niche
The specific role played by an organism in its ecosystem
Competition
When two species occupy the same niche, when resources are limited
Intraspecific Competition
Competition within a certain species
Interspecific Competition
Competition between organisms of different species
Limiting Factor
Anything within an environment that limits the population
Predator-prey relationships are ___________
Cyclical
Carrying Capacity
The number of species that the ecosystem can support
Cause of a carrying capacity in an ecosystem
Logistic growth
Components of a stable ecosystem (3)
Constant source of energy, organisms to utilize energy, recycling nutrients between organisms
Sun
Source of energy for all organisms
Energy flows through an ecosystem in ___ direction
One
Order that energy flows
Producers, consumers, decomposers
Food chains and webs illustrate __________________ relationships
Predator-prey
Autotrophs
Producers
Heterotrophs
Consumers
