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Community Structure Zoljargal
Community Structure Zoljargal
Community Structure Zoljargal
Community Structure Zoljargal
Community Structure Zoljargal
Community Structure Zoljargal
Community Structure Zoljargal
Community Structure Zoljargal
Community Structure Zoljargal
Community Structure Zoljargal
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Community Structure Zoljargal

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  • 1. Zoljargal Jargalsaikhan
  • 2.
    • Community is a group of populations interacting and inhabiting a certain area. It is a complex mixture of different populations that exist together
    • Community ecology is the study of the distribution, abundance, demography, and interactions between populations of coexisting species.
  • 3.
    • The structure of a community refers to its:
    • Diversity – the number of different species
    • Populations – how many of each species there are
    • Appearance – size and distribution of species
    • Interactions – what jobs the species play within the community and how they interact with each other
  • 4.
    • NATIVE SPECIES are those species that typically live and thrive in a particular ecosystem and have been present there for a long period of time.
    • NON-NATIVE SPECIES are species which are either deliberately or accidentally introduced into an ecosystem
    • INDICATOR SPECIES are species which are particularly sensitive to environmental change and so serve as signs of early warning of damage to a community
    • KEYSTONE SPECIES are species that play a more important role in an ecosystem than would be suggested by their population
  • 5.
    • Ecological Succession
    • It refers to more or less predictable and orderly changes in the composition or structure of an ecological community
  • 6.
    • There are two main types of succession
    • Primary Succession
    • It occurs in essentially lifeless areas
    • Secondary Succession
    • It occurs in areas where a community that previously existed has been removed
  • 7.
    • A transitional zone between two communities containing the characteristic species of each
    • Example – Wetlands
  • 8.
    • The edge effect is a term used to describe the various consequences on vegetative communities. These edges can be natural or human induced.
  • 9.
    • The ecological niche involves both the place where an organism lives and the roles that an organism does in its habitat
  • 10.  

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