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CH 5 & 6

Community & Population

AB
Population Densitytion refer?
Exponential growthWHen individuals in a population reproduce at a constant rate it produces a growth pattern called
birth rate and emigrationWhich are two ways a population can decrease in size
Limiting factorFood, Water, Competition, Diseases, Predation
Exponential GrowthGrowth fo a population that has not limiting factors. Example Is in India
Densisty Dependent FactorsDisease, Parasites, Competition
Carrying CapacityThe max amount of individuals an area can hold, due to food supply, water supply and space
CompetionFood, Water, Space, Mating, Light
Densisity Independent factorsStorms, Flood, Earthquakes, Drought
Logistic GrowthThe population grows until the area hits its carrying capacity
Species DiversityThe mumber of different species in the biosphere
ImmigrationWHen an individual moves into a population from a different population
Biological MagnificationExcessive levels of DDT in top levels comsumers
ChlorofluorocarbonsTHe major cause of ozone depletion
ClimateThe year toyear conditions of an area
Threats of BiodiversityBiological magnification of toxic compounds, habitat fragmentation, invasive species
Goals of Conservation of BiologyWise management of natural resources, Protection of management of individual apecies, preservation of habitats and wildlife
renewable resourcesResources such as water, plants, and animals that can be replinished
Nonrenewable resourcesResources such as coal and natural gasses and oil that can not be replinished
EmmigrationWhen a species leaves that area
Emigration is the movementof individuals out of a poulation and reduces it size if allother factors are equal.How does emigration affect population size
A density independent limiting factor is a limiting factor that affects all population regardless of size such as a rain storm, drought, fire, and certain human activitiesWhat is density independent limiting factor? Give two examples
Population growth has slwed in the United States, But China and India are only in the beginning stafe of demographic transistion where the population is still growing rapidlyHow does population growth in the United States compare witht that of China and india?
Soloar energy production of oxygen temperature control, air, and water purification, food production, habitats for wildlife, storage and recycling of nutrients and other services.Describe threes services that provided by the healthy biosphere.
exponential growth is without limits and logistic growth has limits.What is the difference between exponential growth and logistic growth?



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