The study of inter-relationships between organisms and their environment
Ecology
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Non-living components, such as temperature and rainfall, in an environment
Abiotic
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Living components, such as competition and predation, in an environment
Biotic
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The layer of land,air and water that surrounds the Earth is called the...
Biosphere
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Within each ecosystem are groups of individuals called...
Community
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A group of interbreeding organisms occupying the same place at the same time
Population
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The place where a group of organisms lives is know as a...
Habitat
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How an organism fits into the evironment
Ecological Niche
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... is made up of all the interacting biotic and abiotic features in a specific are
Ecosystem
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The number of individuals of a species in a given space
Abundance
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Sampling technique used in the study of habitats
Quadrat
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It is important that sampling is ... to avoid bias in collecting data
Random
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The likelihood of a particular species occurring in a quadrat
Frequency
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Estimate of the area within a quadrat that a particular plant species covers
Percentage Cover
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Technique = known number of animals are caught, marked, released back into the community. Some time later, a given number of individuals is collected randomly and the number of marked individuals recorded.
Mark-release-recapture
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Number of individuals in a population is the...
Population Size
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Graph that plots the pattern of growth for a population
Population Growth Curve
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Competition that occurs when individuals of the SAME species compete with one another for resources such as food, water, breeding sites, etc
Intraspecific Competition
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Competition that occurs when individuals of DIFFERENT species compete for resources
Interspecific Competition
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An organism that feeds on another organism, known as their prey
Predator
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... occurs when one organism is consumed by another
Predation
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The relationship between predators and their prey
Predator-prey relationship
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When individuals join a population from outside
Immigration
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When individuals leave a population
Emigration
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Change in population where life expectancy is long and birth rates are low, to a population where life expectancy is long and birth rates are low
Demographic Transition
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The age at which 50% of the individuals in a particular population are still alive
Average Life Expectancy
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A Population where the birth rate and death rate are in balance = no increase/decrease in population size
Stable Population
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A Population where the birth rate is high and there are fewer older people. This type of population is typical of economically less developed countries.
Increasing Population
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A Population where there is a lower birth rate, and a lower mortality rate, leading more to more elderly people.
Decreasing Population
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Other cards in this set
Card 2
Front
Non-living components, such as temperature and rainfall, in an environment
Back
Abiotic
Card 3
Front
Living components, such as competition and predation, in an environment
Back
Card 4
Front
The layer of land,air and water that surrounds the Earth is called the...
Back
Card 5
Front
Within each ecosystem are groups of individuals called...
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