Summary of Ecology. Including the levels of organization in life; organisms, species, populations, communities, ecosystem and biosphere. Along with details of the abiotic factor and biotic factors.
- Ecology is the study of the inter-relationship of organisms to each other and to their environment.
The environment constitutes the surroundings of an organisms both living (biotic) and non-living
(abiotic)
Abiotic
- An abiotic factor is any non-living factor that is used or present in an ecosystem. Common abiotic
factors includes;
➔ Sunlight, oxygen, nitrogen, climate, temperature, pH levels, and water.
Biotic
- Biotic factors are the living components of an ecosystem. They are sorted into three groups
➔ Producers (autotrophs)
➔ Consumers (heterotrophs)
➔ Decomposers (detritivores)
Levels of organizations:
Individual Organisms
↓
Species
Organisms that can interbreed and produce fertile offspring
↓
Populations
The number of organisms of the same species that live in a particular area at the same time
↓
Communities
An interacting group of various species (populations) in a common location
↓
Ecosystem
A system that includes all living organisms (biotic factors) in an area as well as its physical
environment (abiotic factors) functioning together as a unit
↓
Biosphere
The biosphere is the portion of earth where life occurs -- the portions of the land, water and air that
hold life. These parts are known, respectively as the lithosphere (soil and rock), hydrosphere (water)
and atmosphere (gasses)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ammaramahomed05. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R50,00. You're not tied to anything after your purchase.