Term
| density independent factors |
|
Definition
-Affect population size
->influence is not proportional to N
-abiotic factors such as volcanic eruptions, earthquakes, floods, ice storms, hurricanes |
|
|
Term
| density dependent factors |
|
Definition
-Regulate population size
->influence is proportional to N
-resources such as food shortages, nesting sites, space in the intertidal
-also competition, predation, parasitism
-if you increase N you increase severity (and vice versa) |
|
|
Term
| Zero Population Growth (ZPG) |
|
Definition
-no net increase
- λ=1 and r=0
ie. China tried traditional proposition of 1 child policy
-but it was coersive, skewed sex ration, aborted or adoption of baby girls, and 4-2-1 syndrome |
|
|
Term
| Another option for slowing population growth? |
|
Definition
yes. raise the age at first reproduction
how? - improve living conditions, increase employment, increase education |
|
|
Term
|
Definition
| convert LDC to MDC through industrialization/modernization |
|
|
