Ecology
Published on Nov 18, 2015
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PRESENTATION OUTLINE
ECOLOGY
- Study of the interactions of organisms with each other and with the physical environment
- Ecology, like so many biological disciplines, is wide ranging and involves several levels of study
Photo by angela7dreams
POPULATION
- All the members of the same species that inhabit a particular area
- Multiple of the same kind of fish in an area would be considered a population
Photo by Kevin Bryant, DMD
COMMUNITY
- All the populations found in a particular area
- A coral reef that contains numerous populations of fishes, crustaceans, corals, and so forth
Photo by iambiology.net
ECOSYSTEM
- A community and its physical environment, including both non living (abiotic) and living (biotic) components
- For example, energy flow and chemical cycling in a coral reef can affect the success of the organisms that inhabit it.
Photo by henrikj
BIOSPHERE
- All the communities on earth who's members exist in air and water and on land
- It is the entire surface of the earth- air, water, and land
Photo by afagen
AUTOTROPH
- Require only inorganic nutrients and an outside energy source to produce organic nutrients for their own use and for all the other members of a community
- Photosynthetic organisms produce most of the organic nutrients for the biosphere
Photo by blmiers2
HETEROTROPH
- They need a preformed source of organic nutrients
- They are the consumers-they consume food
Photo by uccsbiology
HERBIVORES
- Herbivores are animals that graze directly on plants or algae
- An example of a herbivore would a giraffe because they eat grass and plants
Photo by thomasswilliams
CARNIVORES
- Carnivores feed on other animals
- Birds that feed on insects are carnivores; and so are Hawks that feed on birds
Photo by TeryKats
DECOMPOSER
- Decomposers are heterotrophic bacteria and fungi that break down dead organic matter, including animal wastes
- Example of a decomposed would be such molds or mushrooms
Photo by photogirl7.1
