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Science Population

Population growth, endangered species ect...

QuestionAnswer
Exponential growth that as a population gets larger, it also grows at a faster rate
Carrying Capacity the number of organisms of one species that an environment can support indefinitely
life history pattern
Density dependent factors
Density independent factors
demography the study of human population size, density and distribution, movement and its birth and death rates
birthrate is the number of live births per 1000 in a given year
Death rate is the number of deaths per 1000 in a given year
Doubling time is the time needed for a populations to double in size
Age Structure refers to the proportions of the population that are in different age levels.
Biodiversity refers to the variety of species in a specific area
Extinction is the disappearance of a species when the last of its members dies
Endangered Species when its numbers become so low that extinction is possible
Threatened Species when the population of a species is likely to become endangered
Habitat Fragmentation is the separation of wilderness areas from other wilderness areas
Edge effects the different conditions along the boundaries of an ecosystem
Habitat Degradation the damage to a habitat by pollution
Acid Precipitation rain, snow, sleet and fog with low pH values
Ozone layer absorbs some of the ultraviolet waves striking the atmosphere reducing the radiation reaching the earth
Exotic species such as the goat and the lamprey, are not natice to a particular area
Conversation Biology the study and implementation of methods to protect biodiversity
Natural Resources are those parts of the environment that are useful or necessary for living organisms
Habitat corridors protected strips of land that allow the migration of organisms from one wilderness area to another
Sustainable use strives to enable people to use natural resources in ways that will benefit them and maintain the ecosystem
Reintroduction programs such as this one, release organisms into an area where the species once lived
Captivity an organism that is held by people
Created by: maggiebjones
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