APES Unit 1

Environment

the sum of all the conditions surrounding us that influence life

Environmental Science

The field of study that looks at interactions among human systems and those found in nature

Ecosystem

A particular location on Earth with interacting biotic and abiotic components.

Environmentalist

Someone who pursues environment as politics. Like a lobbyist or an activist.

Environmental Scientist

Uses scientific method, observation and research

Human activities

Extinctions, hunting, ecosystem development, development, climate change, population growth

Ecosystem services

the process by which life-supporting resources such as oxygen production, clean water, timber, fisheries, and agricultural crops are produced.

Environmental Indicator

describes the current state of the environment

Environmental indicators help us describe the current state of an environmental system. The five key global environmental indicators are:

Biological diversity, food production, average global surface temperature and CO2 concentrations in the atmosphere, human population, and resource depletion.

Biodiversity

The diversity of life

Biodiversity exists on three scales

Genetics, species and ecosystems

Genetic Diversity

is the variety of genes among individuals of a population. Populations with high genetic diversity are better able to respond to environmental change.

Species

a group of organisms that is distinct from other groups in its morphology, behavior, or biochemical properties

Species Diversity

The number of species in a region or in a particular type of habitat.

Speciation

The evolution of new species

Background extinction rate

The average rate at which species become extinct over the long term

Food production

Our ability to grow food to nourish the human population

World grain production per person

Grain production has increased since the 1950s, but it has recently begun to level off.

Greenhouse gases

Gases in earth's atmosphere that trap heat near the surface. Helps to keep a stable temperature on Earth's surface.

Anthropogenic

Derived from human activities

Development

Improvement in human well-being through economic advancement.

Resource use in developed and developing countries

Only 20% of the world's population lives in developed countries, but that 20% uses most of the world's resources. The remaining 80% of the population lives in developing countries and uses far fewer resources per capita.

Sustainability

Living on earth in a way that allows humans to use its resources without depriving future generations of those resources.

Sustainable Development

development that balances current human well-being and economic advancement with resource management for the benefit of future generations

Biophilla

Love of life

Mono Lake

Water comes in it and only comes out through evaporationExtremely saltyIn CaliforniaThe natural water reservoir that feeds Mono Lake was being drained which made the Lake more salty and this made water levels come down.Terminal lake is a collection of water and it can only leave through evaporation.Brine shrimp. Alkali fly, microscopic algae, sandpipers, gulls and flycatchers. There are trillions of brine shrimp, the alkali flies are able to withstand the high alkaline waters, sandpipers and gulls and flycatchers migrate there to eat the flies and brine shrimp.