Tuesday, 10 October 2017

Ecological Terms

Ecological terms
Definition
Other stuff
Habitat
A natural environment where an organism lives.
It provides both plants and animals basic resources of life.
E.g. Food, shelter, nesting and breeding sites
Species
A group of organisms that:
·         Look alike
·         Have similar characteristics
·         Share the same ecological niche
·         Capable of interbreeding
·         Produce fertile offspring
(Fertile offspring are offspring of parents which can continue to reproduce. Infertile offspring cannot reproduce. )
E.g. Duckweeds and waterlilies are different species of water plants.
Population
A group of organisms of the same species living at the same habitat at the same time.
Individuals of a population
·         Rely on the same resources
·         Affected by similar environmental factors
Community
A natural collection of plant and animal species living within a defined area/habitat in an ecosystem.
Their members are independent and interact with each other. Population and distribution of species in a community will be affected if 1 population changes.
Niche
The function/role an organism plays in an ecosystem.
Including
·         Habitat
·         Types of food consumed
·         Range of tolerable temperatures
·         Space occupied
May compass what the organism eats, how it interacts with the non-living, or abiotic, parts of the environment as well.

Sources and References

Gan Wan Yeat. Success SPM Biology. Shah Alam : Oxfard Fajar Sdn. Bhd.

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