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Chapter 52 {Campbell Biology} Flashcards Flashcards

Intro to Ecology + Biosphere

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4851568037ClimateLong term prevailing weather in a given area affected by temperature, precipitation, sunlight, and wind0
4851568038MacroclimatePatterns on a larger scale (i.e. globally, in a region or landscape, etc)1
4851568039MicroclimateLocalized patterns, can be as small as climate under a fallen log2
4851568040BiomeMajor life zone characterized by vegetation or physical environments3
4851568041ClimographGraph that visually charts the annual temperature and precipitation of biomes4
4851568042EcotoneOverlap or integration between two or more neighboring biomes5
4851568043DisturbanceAn event like a storm, fire, or human activity which changes a community by removing organisms or altering resource availability6
4851568044SavannasCharacterized by grasses and trees, the dominate herbivores are insects like ants and termites. Fire is a dominant abiotic factor and though plant growth is substantial during the rainy season, regular drought causes large grazing animals to migrate7
4851568045DesertCharacterized by sparse rainfall, plants and animals are adapted to conserve and store water and often have adapted defenses to avoid being eaten. Temperatures, both hot and cold, are extreme8
4851568046ChaparralCharacterized by dense, spiny, evergreen shrubs. These coastal areas have mild rainy winters and long, hot, dry summers and plants are adapted to fires.9
4851568047Temperate GrasslandCharacterized by seasonal drought, occasional fires, and large grazing mammals; these factors limit tree growth. Soil is rich with nutrients and are good for agriculture10
4851568048Temperate Broadleaf ForestCharacterized by dense strands of deciduous trees which require sufficient moisture, these forests are open and stratified (contain layers: one or two strata of trees, then shrubs, then herbaceous stratum). Trees drop leaves in fall and mammals hibernate while birds migrate11
4851568049CanopyThe upper layers of trees in a forest12
4851568050Coniferous ForestCharacterized by cone bearing trees like pine, spruce, and fir, the conifers prevent snowfall from accumulating on and then breaking the branches13
4851568051TundraCharacterized by permafrost, very cold temperatures, high winds, and little rainfall; there no trees or tall plants and it covers about 20% of land on earth14
4851568052Tropical ForestA forest with clear vertical stratification in which the canopy is very dense and lets little light through. They have epiphytes (plants that grow on other plants and not in soil). While rainfall varies, biodiversity is the highest here.15
4851568053Upper Photic ZoneIn an aquatic biome, has sufficient light for photosynthesis to occur16
4851568054Lower Aphotic ZoneIn an aquatic biome, little light penetrates17
4851568055Pelagic ZoneUpper photic zone and lower aphotic zone combined18
4851568056Abyssal ZoneThe bottom of the aphotic zone, aproximately 2,000-6,000 m below the surface19
4851568057Benthic ZoneSand and inorganic sediment at the bottom of all aquatic biomes20
4851568058BenthosOrganisms that live in benthic zones and feed off of any detritus that comes down from the photic zone21
4851568059ThermoclineLayer of water that separates the warm upper layer from colder, deeper water22
4851568060TurnoverPhenomenon in which oxygen rich surface waters gets cycled to the bottom while the nutrient rich bottom water comes upwards23
4851568061Littoral ZoneWell lit shallow waters near the shore of a lake which contains rooted and floating aquatic plats24
4851568062Limnetic ZoneWell lit open surface waters farther from the shore of a lake which is occupied by phytoplankton25
4851568063Oligiotrophic LakesDeep lakes which are nutrient poor yet oxygen rich and contains sparse phytoplanton26
4851568064Eutrophic LakesShallow lakes which are nutrient rich yet oxygen poor and contain a high concentration of phytoplankton27
4851568065Streams and RiversBodies of water characterized by currents in which organisms are distributed in vertical zones from the headwaters to the mouth28
4851568066EstuariesAreas where freshwater streams merge with the ocean29
4851568067Intertidal ZoneWhere land meets water; periodically submerged and exposed by daily tides30
4851568068Neritic ZoneBeyond the intertidal zone where shallow water exists over a continental shelf31
4851568069Pelagic BiomeVast realm of open blue water found past continental shelves32
4851568070Coral ReefBiome created by cnidarians which secrete hard calcium carbonate shells that support the growth of corals, sponges, and algae; most productive ecosystems on Earth33
4851568071DispersalMovement of individuals and gametes away from the origin and center of population density; affected by geographical barriers and existing organisms who may be occupying available niches34
4851568072Abiotic FactorsTemperature, water, oxygen, salinity, sunlight, rocks and soil35
4851568073Organismal EcologyHow an organism's structure, physiology, and behavior meet the challenges posed by its environment36
4851568074Population EcologyAnalysis of factors that affect population size and how and why it changes through time37
4851568075Community EcologyHow interactions between species affect community structure and function38
4851568076Ecosystem EcologyStudy of energy flow and chemical cycling between organisms and the environment39
4851568077Landscape EcologyAnalysis of factors controlling exchanges of energy, materials, and organisms across multiple ecosystems40
4851568078BiotaAnimal and plant life41
4851568079EcologyStudy of the interactions between organisms and the environment42
4851568080CommunityGroup of populations of different species in one area43
4851568081EcosystemCommunity of organisms in an area and the physical factors with which those organisms interact44
4851568082Hadley Cellslarge-scale vertical patterns of atmospheric circulation in which warm air rises near the equator, moves toward the poles, and cools and sinks around 30 degrees N or S latitude45

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