Integrated Waste Management-Natrural Selection

Integrated Waste Management
Use of several options for handling solid wastes. Includes recylcling, waste reductions, composting, landfilling and others.
Intrinsic Value
Idea that things are valuable without money value, just for their own being
Keystone species
Organism that is absolutely necessary for the survival of many other species
Kinetic Energy
energy of motion
K strategist
Reproduction approach where an organism has few offspring that are born at one time and then young are carefully cared for. ex: mammals or birds
La Nina
Major climatic phenomenon characterized by intense easterly trade winds in the eastern equatorial Pacific Ocean. Opposite of El Nino, has major weather disruptions.
Lacey Act
First national act, passed in 1900 gives protection to wildlife by forbidding interstate commerce in illegally killed wildlife.
Landfill
Site where wastes(municipal,industrial, or chemical) are disposed of and sealed in large under or above ground cells
Land Subsidence
Phenomenon where land gradually sinks,due to excessive removal of ground water or oil
Law of Limiting Factors
Also known as Liebig’s Law of Minimums. An ecosystem can be limited by the absence or minimum amount of any one vital factor.
LD 50
Stands for lethal dose 50% where one half of organisms are killed due to an application of a pollutant.
Leachate
Mixture of water and materials that are leaching (moving) through the ground. Typically pertains to the landfills
Legumes
A group of land plants that have the ability to fix nitrogen. EX: peas, beans, alfalfa, and clovers
Limiting factor
A single factor that an organism must have for survival, regardless of how much of the other resources are present. Ex O2.
Limits of tolerance
Absolutes extreme of any factor EX: Temperatures or pressure that an organism can tolerate before it will die
Litter
In an exosystem it refers to leaves, twigs, and other dead plant material.
Loam
A soil consisting of a mixture of about 40% sand, 40% silt and 20% clay. Loam is considered the best soil for agriculture.
Maximum sustainable yield
Maximum amount of a renewable resource that can be taken year after year without depleting the resource.
Meltdown
When a nuclear reactor loses its cooling water and melts from the excessiver heat produced. This is known as the China Syndrome because it was once jokingly said that a complete meltdown would cause radioactive substances to melt china
Methane
A natural gas, CH4, that is produced through the decompostition of organic material.
Microbe
Any microscopic organism, such as , baceria, viruses, and protozoan.
Mitigation
Used in restoring or moderating the quality or condition of an ecosystem. This may reduce the intensity of a pollutant, or include replanting a clear cut forest to moderate or alleviate an environmental problem. Mitigation may also include a punishment, or penalty.
Microclimate
Abiotic conditions of particular location in an ecosystem, that may include, a shaded area, a pond, etc
Monoculture
The growing a single crop with the same genetic makeup over a very large area.
Monsoon
Seasonal heavy rainfall
Morbidity
The occurrence of disease in a populataion
Mortality
The occurrence of death in a population.
Mutagenic
Causing mutations, genetic deformities, and cancer.
Mutualism
A relationship between two organisms in which both organisms benefit from the relationship.
Municipal Solid Waste
Refers to trash that is thrown away, mostly paper, from communities.
Natural Biological Control
Used in sewage treatment to remove nitrogen and phosphorus.
Natural Chemical Control
Using of one or more natural chemicals such as hormones or pheromones to control a pest.
Natural Selection
States that, organisms which are best suited for the environmental conditions of an ecosystem, have a better chance of survival and passing their genes on to the next generation.