Unit 3: Populations

generalist

A ____________ species can tolerate a wide range of environmental conditions with a variety of food sources and habitats.

specialist

A _____________ species has a narrow range of environmental conditions, eats only one or very few types of food, and lives in only one type of habitat.

K-selected

_______________ species tend to be large, reproduce later, have long life spans, and are prone to extinction.

r-selected

_____________ species tend to be small, mature early, have many offspring, have short life spans, and are more likely to survive environmental changes.

Type I

A _____________ survivorship curve includes survival until later in life.

Type II

A ___________ survivorship curve shows a constant state of mortality regardless of age.

Type III

A ___________ survivorship curve includes high mortality early in life and high survivability for those that do survive.

overshoot, dieback

When carrying capacity is met, ____________ occurs leading to a ____________ of the population due to competition and disease.

biotic potential

Exponential growth of a population occurs when there are no limiting factors and the ______________ can be reached.

Population change

______________________ is based on (birth + immigration) - (death + emigration).