Population Ecology
What is biotic potential
The maximum rate of increase under ideal conditions
Draw or explain a Type I curve and list some traits
Found in large mammals with few offspring and low infant mortality rates
Define biotic
Living
An organisms role or place in life, the factors needed for its existence
Compare exponential growth and logistic growth
Exponential-J-Shaped curve,
Logistic- S-shaped growth
Draw or explain a Type II curve and list some traits
Found in small mammals, chance of survival or death is equal at all ages
Define Abiotic
Non-living
Define Mutualism and give an example(does not need to be animal specific, just a general example)
When both species benefit
Ex) Mycorrizae -mutualism between a plant and fungus
What are the 3 dispersion patterns
Clumps, Uniform Dispersion, Random Dispersion
Draw or explain a Type III curve and list some traits
Found in small animals with lots of offspring and high infant mortality rates
Grass
biotic
Define Parasitism and give an example(does not need to be animal specific, just a general example)
When one species is harmed and the other benefits
Ex)Insects that live inside other species and drain them of nutrients
What is carrying capacity
The maximum number of individuals of a species that an environment can sustain
Describe Density-Dependent Controls
They lower reproductive success and worsen with crowding Ex) competition for resources, predation, and disease
Oxygen
Abiotic
Define Commensalism and give an example(does not need to be animal specific, just a general example)
When one species benefits and the other is unaffected
Ex) A birds nest in a tree
What are some limiting factors of growth on populations?(Name 3)
Nutrient supply, Predation, Competition for space, Pollution, Metabolic Wastes
Describe Density-Independent Controls
Death rate is increased regardless of population size
Ex) Weather, droughts, floods
Bacteria
Biotic
Define Competition and give an example(does not need to be animal specific, just a general example)
Both species are harmed, usually compete over resources
Ex) Lions and cheetahs competing over food