Population and Feeding the world (Population (Populations increase due to…
Population and Feeding the world
Populations increase due to birth rates and people coming the different countries due to opportunities or for different life reasons.
The change in populations usually decrease because either death rate, natural disasters, or migration.
Demography-Study of human population. Demo-People Graphy-Measurment
Carrying Capacity, others are just content to hit the number
Immature, Overfishing, By catch, trawl net-long line dragged on ocean floor. Long line- Lots of hooks.
Grill and drift nets
Shade grown coffee
Coffee grown in the shade of tropical trees. Reduce cutting
Over nutrition- too much food.
Famine- not enough food.
Leads to anemia, over nutrition, and famine.
Not consuming enough fats, carbs, or protein.
Feeding The World
Draft Animals and Domesticated
Only make what you need. Use the sun, own labor, and large animals.Practiced in 3rd world countries,smaller impact on environment.
Contour Farming-Planting crops around curves to reduce erosion. Soil is more fertile.
Shelter Belt-A row of trees planted to help block wind.
Hunter Gathers-A member of a nomadic people who live chiefly by hunting and fishing, and harvesting wild food.
Species that reproduce in way that leads to very fast growth are called R-Selected species.
R-Selected animals make a lot of babies in their lifetime and just hope that they make it.
K-Selected species only make a few babies in their lifetime and they invest in them very heavily.