1. List everything that could impact the growth of this flower
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2. Lab isolation? Or natural habitat?
How do we Study life?
Lab isolation? Or natural habitat?
If ecologists want to study something, such as a single plant, how do they do it?

3. Ecology is the study of how organisms interact with each other and with their environments

4. Life can be organized into different levels or ranks called hierarchy.

10. Biosphere
all life on Earth

12. Limiting Factors in an Ecosystem
In order to survive, organisms must interact with living and nonliving parts of their ecosystem.
Limiting Factor: factors in an environment that can lower the population growth

13. Abiotic Factors Biotic Factors
Nonliving things in an ecosystem (may be chemical or physical)
All of the living components of an ecosystem.
Bacteria
Fungi
Plants
Animals
Water
Soil nutrients N2
Temperature O2
Sunlight
Salinity
Weather pH
Fire
How can these factors impact a population?

16. Limiting Factors in an Ecosystem
In order to survive, organisms must interact with living and nonliving parts of their ecosystem.
What are the 4 things that are essential for populations?
Limiting Factor: factors in an environment that can lower the population growth

17. Populations
Populations can be described based on their size, density, or distribution.

18. Population Density measures the number of individual organisms living in a defined space.

19. Carrying Capacity:
The number of species that can live in the same environment over long periods of time

20. What kinds of factors can impact a population?
Animals that can’t adapt to a change in a limiting factor will either die, or migrate somewhere else.
Food
Water
Shelter
What kinds of factors can impact a population?
Space

21. Density-dependent factors
These factors depend on the density of the population
Examples: disease, predation, competition for food, water, shelter, space
Occurs in large populations
Triggered by increases of population

22. Density-independent factors
These factors will occur regardless of population size
Examples: weather changes human pollution natural disasters