Populations
Group of same species in same area
What is a population?
Growth curve with unlimited resources
What is exponential growth?
Mice and cockroaches follow this reproductive strategy.
What is r-selected?
This curve type shows equal death rates at every age.
What is Type II?
The four factors that determine population size.
What are births, deaths, immigration, and emigration?
Species with a wide niche and high adaptability
What are generalist species?
Growth curve that levels off around carrying capacity
What is logistic growth?
Elephants and wolves follow this reproductive strategy.
What is K-selected?
Humans follow this survivorship curve type.
What is Type I?
A wide base on an age structure diagram indicates this.
What is a growing population?
A species that has a very large impact on its ecosystem
What is a keystone species?
Maximum population an environment can support
What is carrying capacity?
Maximum reproductive rate under ideal conditions
What is biotic potential?
Oysters and sea turtles follow this curve, losing most offspring early.
What is Type III?
The average number of children a woman is expected to have in her lifetime.
What is Total Fertility Rate?
A species used to measure environmental conditions or ecosystem health
What is an indicator species?
When a population exceeds carrying capacity before dropping
What is overshoot?
Competition for food uses ____ limiting factor
What is density-dependent?
This is what happens to a population's growth rate as it approaches carrying capacity.
it slows down
A country with a growth rate of 2% will double its population in this many years.
What is 35 years?
A species that creates, modifies, or maintains a habitat
What is an ecosystem engineer?
The reason behind why carrying capacity is not a perfectly straight line
Births, deaths, immigration, and emigration always change
X____ (Limiting factor) affects populations regardless of size
What is density independent?
A population overshoots carrying capacity and crashes.
What is a dieback?
A country has a TFR below 2.1 for a while. What happens to the population?
What is it declines?