Populations
What is population defined as?
All of the members of one species living in the same area.
A niche comprises?
The habitat in which the organism live.
The organism’s activity pattern: the periods of time during which it is active.
The resources it obtains from the habitat.
What is a density dependent limiting factor?
Density dependent limiting factors are a type of factor that depends on the amount of organisms in the population.
These are three of the factors that have led to an exponential growth of the world's food supply.
What are greater technology, mechanization, more fertilizers, genetically modified organisms, etc....
What is a niche?
A niche is the animal’s role in the community.
What is the primary abiotic limiting factor for most plant life on Earth?
Water availability
At least 3 methods governments have used to change population in different nations.
What are tax breaks, child limits, etc.....
What happens when two animals have the same niche?
They will directly be in competition with each other.
Give an example of a biotic limiting factor that could affect a deer population in a forest.
Predators like wolves
What are the 3 ways a population can grow?
births, deaths, etc…..
What is an ecological niche?
The ecological niche describes the functional position of an organism in its environmen.
A type of factor that relies upon how large the population is.
What are Density Dependent Limiting Factors?
What might cause populations to decline?
When the number of children born into a population decreases, the population will decline. This can be due to a number of factors, including family planning programs, low fertility rates, and changes in family structur.
Describe a giraffes niche.
Leaves, trees
What is a potential limiting factor for human population growth that is largely influenced by human activity?
Access to clean water and sanitation