Population Elation (37)
Number of individuals the available resources can support for an extended period of time.
What is the carrying capacity?
Warning colors, camouflage, association with other prey, and mimicry are all types of this.
What are prey defenses?
General term for surface features of land. These features can have effects on climate.
What is Topography?
Biome in which there are well-defined seasons and most tree species are broadleaves.
What is Temperate Deciduous Forests?
A crisis discipline that revolves around the following tenets:
What is conservation biology?
Overuse of wild populations of organisms that leads to species decline and often extinction.
What is overexploitation?
Pattern of dispersal across an area for a given population.
What is distribution?
The specific role an organism plays in a community including the habitat it occupies and its interactions with other organisms.
What is ecological niche?
Areas of calm (no winds) near the equator.
What are the doldrums?
Amount of rainfall expect in the Desert biome.
What is less than 25cm per year?
Species at eminent risk for extinction.
What are endangered species?
Nutrient condition of an oligotrophic lake.
What is nutrient poor?
Age structure diagram in which the population is rapidly increasing in size and birth rate outpaces death rate?
What is pyramid?
Type of symbiotic relationship in which both organisms benefit from the association.
What is mutualism?
Occurs when warm, wet air from the ocean blows toward land for over half the year.
What are monsoons?
Biome with cool dry seasons followed by hot rainy seasons and characterized by large expanses of grass with sparse trees.
What is savanna?
Exposure by wildlife and humans to new pathogens as we encroach on new habitat.
What are emerging diseases?
Phenomenon that occurs when ocean temperatures rise more than 4 degrees C, causing corals to expel their zooxanthellae.
What is coral bleaching?
Organisms that inhabit fluctuating or unpredictable environments and tend to be small, have a large number of offspring, and a short life span.
What are opportunistic organisms/populations?
Each trophic level is only able to utilize this percent of the energy found in the next lower trophic level.
What is 10%?
The 10% rule states that each trophic level only has access to 10% of the total energy present in the next lower trophic level, largely due to loss of energy during the transfer of energy between trophic levels.
Ocean current that keeps the temperatures of the Eastern U.S. and much of Europe warmer than they would be otherwise.
What is the Gulf Stream?
The Russian Steppes, the American Prairies, and the South American Pampas are all this biome.
What are Temperate Grasslands?
Species that influences the viability of the community.
What is a keystone species?
Removal or loss of a keystone species from a community can cause catastrophic ecosystem collapse.
The highest possible growth rate of an organism.
What is the biotic potential?
Organisms with high biotic potential reproduce at an early age, have many offspring per reproductive event, and reproduce frequently.
Survivorship curve in which individuals have an equal chance of survival throughout the life span.
What is Type II?
Model of ecological succession in which colonists hold onto their space and are not replaced by other species until they die.
What is the inhibition model?
Occurs when the Humbolt Current is warmer than usual, which causes upwelling along the coast of South America to stop.
What is the El-Nino Southern Oscillation?
Biome that possesses permafrost.
What is Tundra?
Sources for alien species introductions.
What are human colonization, horticulture and agriculture, and accidental transport?
Deep ocean habitats where organisms depend on chemoautotrophic bacteria.
What are Hydrothermal Vents?
Population growth curve characterized by a period of very rapid growth followed by a stabilization of the population at the carrying capacity.
What is a logistic growth curve?
The portion of the biogeochemical cycle that stores chemicals (not available to organisms) and the portion that makes chemical available for exchange in the cycle.
What are reservoir and exchange pool?
Zone of the ocean that receives no light.
What is the bathypelagic zone?
Location in the U.S. of an area considered Taiga biome (dominated by conifers) that is also temperate rain forest.
Where is the Pacific Northwest Coast of the U.S. (Alaska, Washington, and Oregon coasts)?
Practices such as polycultures, biocontrols, organic farming and soil conservation techniques are important for this.
What is sustainable agriculture?
Ice bridge that connected Alaska and Russian about 12,000 years ago and allowed intercontinental exchange of people, animals, and plants.
What is Beringia (or Bering Land Bridge)?
I=PAT stands for:
What is Impact = Population X Affluence X Technology?
The IPAT model suggests that currenlty more economically affluent and technologically advanced societies (well-developed countries) have greater environmental impacts than less developed countries.
All species in an area and their relative abundance.
What is diversity?
Flow of ocean currents in the southern hemisphere.
What is counterclockwise?
Biome with high rainfall, nutrient-poor soils, and high biodiversity.
What are Tropical Rain Forests?
Areas of high biodiversity with many endemic species that occur across the globe.
What are biodiversity hotspots?
Approximate latitudes of deserts.
What is 30o N and S of the equator?