Population and Sustainability

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Carrying Capacity
The maximum population size that can be maintained over a period of time in a particular habitat.
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Competition
A struggle between individuals for resources (like food or water) that are not present in amounts adequate to satisfy the needs of all the individuals who depend on those resources.
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Conservation
Maintenance of biodiversity. Requires management of resources and may involve reclamation.
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Coppicing
Cutting a tree trunk close to the ground to encourage new growth.
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Intraspecific competition
Competition for limited resources between organisms of the same species.
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Interspecific competition
Competition for limited resources between organisms of different species.
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Pollarding
Cutting a tree trunk higher up above the ground to encourage new growth.
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Preservation
Protection of habitats at risk from human activity.
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Logistic growth
S-shaped population growth in whic expotential increase is limited by resource, so environmental resistence sets in and carrying capacity is reached.
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Limiting factor
Any biotic or abiotic factor that restrains the growth of a population.
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Environmental resistance
the combined effects of the fators that prevent the further increase of a population.
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Niche
The role of a species in a habitat, including it's trophic level, it's interactions with the abiotic environment and other species, eg as a predator, host ect.
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Competitive exclusion
When individuals of differentspecies compete for the same resources, one species may suceed and the other be excluded from the niche and completely disappear.
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Resource partitioning
Different species competing for the same sort of resource or resources eg food, occupy slighlty different niches so that they avoid direct competition.
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Character displacement
Two species that compete with each other show differences in charactes (features) where they exist in the same ecosystem, but do not show these differences whey they do not coexist.
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Sustainable resource
A biological resource required as a food or as a raw material that is renewed by the activity of organsisms so that there are always sufficient stocks to take from the environment.
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Sustainable management
Aims to provide for the needs of an increasing human population without harming ecosystems
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Other cards in this set

Card 2

Front

A struggle between individuals for resources (like food or water) that are not present in amounts adequate to satisfy the needs of all the individuals who depend on those resources.

Back

Competition

Card 3

Front

Maintenance of biodiversity. Requires management of resources and may involve reclamation.

Back

Preview of the back of card 3

Card 4

Front

Cutting a tree trunk close to the ground to encourage new growth.

Back

Preview of the back of card 4

Card 5

Front

Competition for limited resources between organisms of the same species.

Back

Preview of the back of card 5
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