What is an Ecosystem?

Frage	Antworten
Abiotic Factors	Non living factors in an ecosystem
Abundance	Number of a particular population in a given area
Factors affecting ecosystems arising from human activity	Anthropogenic factor
Living factors in an ecosystem	Biotic factor
Final stable community at the end of the process of succession	Climax Community
When succession is not completed due to human activity	Deflected succession
Factors that have a greater effect on a population when the population is large	Density dependent
Description of where a particular species can be found	Distribution
Interaction between the living and non living components in a given area	Ecosystem
Factors related to soil	Edaphic factor
Type of feeding relationship between a herbivore and plants	Grazing
Place where an organism lives	Habitat
Competition for resources between organisms of different species	Interspecific Competeion
Competition of resources between organisms of the same species	Intraspecific Competition
Type of bar chart representing distribution and abundance of organisms	Kite diagram
Feeding/living arrangement between two organisms where both benefit	Mutualism
Description of the relational position of a species in its ecosystem	Niche
Relation ship where one organism feeds from the other living organism	Parasitism
Pioneer community	First species to colonise bare rock
Feeding relationship where one organism kills and eats the other	Predation
Succession which occurs in an area where no previous communities existed	Primary Succession
Succession which occurs on land that has been cleared, where communities existed before	Secondary Succession
Communities that develop during succession between the pioneer community and the climax community	Seres
Animal that does not move, e.g. attached to rocks	Sessile
Measure of the spread of data about a mean	Standard deviation
Process of changes in a community over time brought about by the changes in abiotic factors caused by previous communities	Succession
Description of the profile of an area, including altitude, slope, aspect and drainage	Topography
The line across and area to be inspected	Transect
Feeding level in a food chain or web	Trophic level
Adaptation of plants that enable them to survive dry conditions	Xerophytic properties
Organisms who are able to synthesise organic compounds from simple molecules, such as carbon dioxide	Autotroph
Organisms who obtain their food and energy from organic compounds	Heterotrophs
Organisms who are autotrophic at the start of a food chain	Producer
Organisms who are heterotrophic and feed on producers (herbivores)	Primary Consumer
Organisms that feed on primary consumers	Secondary Consumer
An organism that feeds on dead and decaying matter, including bacteria and fungi	Decomposer

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