Unit 1: Systems and Models
Believes that technology can solve any ecological problems.
What is Technocentric?
The role an organism plays within its habitat; Where, when, and how it lives within that environment.
What is Ecological Niche?
Variety of forms including species, habitat, and genetic diversity.
What is biodiversity?
The continuous movement of water within Earth's atmosphere.
What is the hydrological cycle?
Has both agriculture and livestock.
What is mixed farming?
Exchanges energy, but not matter.
What is a closed system?
Happens between trophic levels and concentrations of the pollutant increase with each trophic level
What is biomagnification?
Those more adapted to their environment have an advantage and flourish and reproduce, but those less adapted do not survive long enough to reproduce.
What is Natural selection?
The process of removing salt and minerals from seawater or brackish water to create fresh water.
What is desalinization?
Downward loss of nutrients through soil layers. Nutrients are carried by water as it percolates through soil.
What is leeching?
No changes occur in the equilibria.
What is static equilibrium?
6CO2 + 6H2O + Light energy → C6H12O6 (sugar) + 6O2
What is photosynthesis?
Over exploitation causes...
What is biodiversity loss?
Pollution that does not have one specific, identifiable point of discharge.
What is Non point pollution?
Designed areas that protect sensitive ecosystems.
What are buffer zones?
Resources of nature that provides goods (water, soil, forests, etc).
What is Natural Capital?
Is a spatial change, you can observe differences in the ecological community as you move from point A to point B across landscape.
What is zonation?
Gradual change of species over a long time.
What is Speciation?
the over-enrichment of water bodies with nutrients leading to excessive algae growth, harmful algal blooms, and dead zones.
What is Eutrophication?
Growing a single crop across and large area.
What is Monoculture?
Energy cannot be created nor destroyed, only transformed.
What is the 2nd law of thermodynamics?
the total energy or biomass assimilated by consumers (heterotrophs) through ingestion, excluding fecal loss.
What is gross secondary productivity?
The Non-profit organization that monitor the state of the world's species.
What are The International Union for Conservation of Nature (IUCN)?
Scale that gives a measure of the quality of an ecosystem. Measured through the presence, absence, abundance or scarcity of a particular species.
What is the biotic index?
Downward movement of humus and stable aggregates making them more stable.
What is Translocation?