An area with a particular combination of physical, biological, and environmental factors which organisms can live within it.
Habitat
Includes a range of physical and biological conditions in which a species can survive and reproduce, as well as it retains the sources it needs. (Example. Lion = Predator)
Niche
Includes all the different living species in the same place at the same time. Species in a community have lots of different biodiversity.
Communities
When organisms attempt to use the same limited ecological resources in the same place at the same time.
Competition
Competition between members of the same species.
Intraspecific Competition
Competition between members of different species
Interspecific Competition
Populations of predators and prey may rise and fall over time.
Predator and Prey relationships
This type of relationship affects the distribution and diversity of plants in any ecosystem
Herbivore-Plant Relationships
Any type of a close and long-term biological interaction between two organisms
Symbiosis
A relationship in which both organisms benefit.
Mutualism
A relationship in which one organism benefits and the other is neither helped or harmed.
Commensalism
A relationship in which one organism benefits and one organism is harmed.
Parasitism
Plays a vital and unique role in maintaining structure, stability, and diversity in an ecosystem.
Keystone Species
A group of organisms that belong to the same species and live in a particular place at the same time.
Population
The number of individuals in a given population, can be difficult to measure.
Population Size
The number of individuals in a defined area
Population density
growth rate is affected by:
- Births
- Emigration
- Deaths
- Immigration
Logistic growth
starts slow, followed by a brief period of exponential growth and levels off
The study of interactions that take place between organisms and their environment
Ecology
Non-living parts of an organisms environment (air currents, temperature, moisture, light, soil)
Abiotic Factors
-Living parts of the environment
-All organisms depend on others directly or indirectly for food, shelter, reproduction or protection
Biotic Factors
An individual living thing that is made of cells, uses energy, reproduce, responds, grows, and develops.
Organism
A group of organisms, all of the same species, which live in the same place at the same time
Population
