A carrying capacity is a estimated amount of one type of a organism that a ecosystem can hold and provide for. If the amount of organisms goes over the carrying capacity, the species will die until the number is under the carrying capacity.
Temperate Deciduous Forest (PA)
Food webs show how plants and animals are interconnected by different paths.
Trophic Levels, Primary Consumer, Secondary Consumer, Tertiary Consumer
Biodiversity is the variation of species on earth. Ex: Pine Tree Farm Test
A variation of species within a ecosystem makes a healthy environ ment because they can recover from disturbances much quicker then if there is only one type of species.
Genetic Biodiversity is important because it allows diffent species to be slightly different then their parents. Such as a tree that was hurt by a disease, over time the genetics would change to become immune to the disease.
Ecosystem biodiversity is when there is variation in ecosystems. It is important because it allows us to get many resources as humans instead of just one type of species there are millions instead of wiping out one typ of species.
Hot spots are places around the equator where biodiversity overflows. It is much easier to live in a warmer environment and that allows more species to be present in these very small areas. Less than 2% in fact!
Food chains follow a single path as animals eat each other, they do not show as much detail as food webs do.
An endangerd species is a population of organisms that are at risk of becoming extinct.
Threatened species are basically the same as endangered species but they are at risk of extinction in the near future.
A indicator species is a species that is a sign to us humans if we are disturbing a environment too much. An example of a indicator species is a Owl to the Old Growth Forest. If we invade that environment we will notice a very sharp drop in the amount of owls in that ecosystem.
A gradual process that enables a ecosystem to regrow that is triggered by a natural occurence, such as a flood. The flood fertilizes the land and carries seeds which allows new plants and species to inhabit the land.
Primary Succesion is when new land that has not yet been occupied starts to develope can create a brand new ecosystem for species to inhabit.
Secondary Succesion is when all previous species are removed and the land has been deserted until it starts to develope again. The ecosystem developes and becomes a new ecosystem for different types of species.
Pioneer Species that colonize once uncolonized land that usually trugger ecological succession. They are the first organisms to inhabit the land that was previously deserted or brand new.
A limiting factor is something or a condition that does not allow a type of species in a environment habitat. For example lack of water, food, and shelter. If animals do not have these three vital needs they will naturally be removed from the habitat.
Population growth is the growth of a population over time. The population can grow and shrink. Our human population has been growing out of control ever since the industrial revolution.
The population growth rate is a percentage the population grows or recedes over one year. It shows the change in population and can predict what the population will be for years to come.
Exponential Growth is when a birth rate stays the same over time. Creating the same amount of population increase each year.
Urbanization is the act of humans gathering and becoming more populated in and around cities and in the suburbs.
The J-curve is a graph that shows humans exponential growth during the Industrial Revolution. There is a huge increase in the population which is easily shown on the graph.
The S-Curve graph predicts and shows the eventual leveling off of humans in the world population. This is what would happen if humans reached their carrying capacity.
An aquifer is a underground water source that is one of our mainsources of clean water here on earth.
Water Purification is the process of removing undesirable chemicals, materials, and biological contaminants from raw water.
Water Pollution, Point Source, Non-Point Source, Inorganic Pollutants, Organic Pollutants
A watershed is the area of land where all of the water that is under it or drains off of it goes into the same place such as rivers, lakes, and oceans.
Erosion is the process in which water wears down the rock and grinds it into sediment and smaller particles and deposites it somewhere else.
Runoff is water and anything that gathers and goes into storm drains or runs of the land uncleansed and acts as a non-point source pollutant because it is the pollution from a general area.
A natural resource is a natural organism or occurence in nature that humans use for their well-being, health, and shelter.
A non-renewable resource is a natural resource that cannot be replenished within a human lifespan, such as oil or coal.
A renewable resource is a resource that can be replaces and cycle in a human lifespan, such as trees and fish.