APES

Population growth rate (Intrinsic growth rate)

The rate at which a population increases in size under ideal conditions, without any environmental resistance. It represents the maximum potential growth of a population based on birth rates minus death rates.

Biotic potential

The maximum capacity of an environment to support a population, considering the reproductive rates and availability of resources. It reflects the theoretical growth of a species in optimal conditions.

K-selected species

Species that produce fewer offspring but invest more resources in their upbringing, leading to higher survival rates.

Carrying capacity

The maximum number of individuals of a species that an environment can sustainably support, taking into account resource availability and ecological constraints.

r-selected species

Species that produce many offspring but invest less in each, often leading to lower survival rates.

Overshoot

Occurs when a population exceeds its carrying capacity, leading to resource depletion.

Dieback (Die-off)

The population decline following an overshoot when resources become scarce, leading to increased mortality.

Survivorship curve

Graph showing the number of individuals surviving at each age for a given species, illustrating patterns of mortality and lifespan.

Type I survivorship curve

Type II survivorship curve

Type III survivorship curve

Density-dependent factor

Density-independent factor

Population growth models

Fecundity

Exponential growth model

J-shaped curve

Logistic growth model

S-shaped curve

Limiting resource

Demography

Demographer

Immigration

Emigration

Crude birth rate (CBR)

Crude death rate (CDR)

Net migration rate

Life expectancy

Infant mortality

Child mortality

Environmental justice

Age structure diagram

Population pyramid

Developing countries

Developed countries

Population momentum

Total fertility rate (TFR)

Family planning

Replacement-level fertility

Doubling time

Rule of 70

Theory of demographic transition

IPAT equation now add the definitions