+
Related Flashcards
Related Topics
Cards In This Set
| Front | Back |
|
The study of interactions between organisms and the environment.
|
Ecology
|
|
First used the word "ecology".
|
Ernst Haeckel
|
|
5 levels of study
|
Individual, population, community, ecosystem, ecosphere
|
|
Group of individuals of the same species that occupy a given area.
|
Population
|
|
The abiotic and biotic community, functioning as a system.
|
Ecosystem
|
|
All populations of different species living and interacting within an ecosystem.
|
Community
|
|
3 important ideas of the definition of ecology
|
Distribution, abundance, interactions
|
|
3 ways to study ecology
|
Observation, field experiment, lab experiment
|
|
Collect data on organisms in the lab or field, but do not have the researcher manipulating the organism or the environment.
|
Observational studies
|
|
Do involve some manipulation by the researcher, and can be carried out in the field or in the lab.
|
Experimental studies
|
|
Large-scale changes in a population or species; typically occurs over a long time frame, can result in speciation.
|
Macroevolution
|
|
A cumulative or directional change in the frequency of alleles within a population over multiple generations.
|
Microevolution
|
|
5 processes that can lead to microevolution
|
Mutations, gene flow, non-random mating, genetic drift, natural selection
|
|
Change in the DNA code
|
Mutation
|
|
Individuals may move into or out of the population, taking out with them their alleles
|
Gene flow
|
