Lecture 2 Notes (Part 4) Flashcards
What are 4 physical and chemical factors regarding the concept of ecological niches?
- Temp
- Humidity
- Salinity
- O2 concentration
What are 3 biological factors regarding the concept of ecological niches?
- Syntrophism
- Amensalism
- Competition
What drives the formation of communities?
Population of plants and animals or microorganisms are found in nature in environments that are suitable for their growth and reproductive success
- population success
What happens to light and is goes down the water gradient?
It decreases
What is the result of light extinction? (3)
- It creates different masses of water
- Different temps
- Much reduced diffusion between layers
What are 4 examples of abiotic factors?
- Light
- Temp
- O2
- Salinity
Abiotic factors
A nonliving condition or thing, as climate or habitat, that influences or affects an ecosystem and the organisms in it
What are 3 examples of biotic factors?
- Syntrophy
- Competition
- Amensalism
Biotic factors
Is any living component that affects the population of another organism, or the environment
What 2 things contribute to spatial and temporal succession?
Biotic and abiotic factors
What creates strong vertical gradients?
Diffusion of dissolved gases and solutes
What creates strong horizontal gradients?
Salinity
As time goes on and diversity increases, what happens to the biomass?
Decreases
What are 4 ways to support a community?
- Need energy for individual organisms
- Need nutrients
- Need to be adapted to the climate and environmental conditions
- Need other organisms directly or indirectly as food or source of food
Ecosystem
A community and its environment treated together as a functional system of complimentary relationship and transfer and circulation of energy and matter