Number of individuals in an area
population movement into an area
population movement out of an area
Rate of increase or decrease of a population
Growth that increases over time. Found under perfect conditions only
Most number of individuals that an ecosystem can have
Anything that limits population growth
Density-dependent limiting factor
limits population growth based on population density;ex. disease, competition, predation
Density-Independent limiting factor
limits population growth not based on population density; ex. natural disaster, seasonal changes, etc.
study of human populations
Diagram that shows human population info based on age and gender
Plants and animals that fishing boats remove from the oceans, that are not intended for use/consumption; catching dolphins in your nets while fishing for tuna.
Using natural resources without running out of them, and providing for human needs without causing long term environmental harm.
Any resource that cannot be replaced by natural processes; ex. Oil, coal, aluminum
Resources can regenerate or replenish over time;ex. growing more trees after logging/using wind energy/cleaning and reusing drinking water
When good land is turned into a desert through farming, overgrazing, and/or drought
Loss of forests through natural or man made causes; logging forests
Removing more fish from the oceans than can be naturally produced; catching more fish than will be born
A harmful material that can enter the biosphere through air, land, or water.; murcury
A mixture of chemicals that occurs as a grey-brown haze. Primarily caused by automobiles
Total diversity in the biosphere. The combination of ecosystem, species, and genetic diversity.
Species with very low numbers that is at risk of dying out
When a species no longer exists
a break in an ecosystem by natural or man made barriers.
Lots of different habitats, communities, and ecological processes in the world.
Number of different species in the biosphere
Total genetic variety on the planet
When increasing pollutants are passed up the food chain
Species that move into ecosystems that do not contain any of their normal population limiting factors
A way of manageing natural resources to preserve habitats and wildlife.