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Ecology of ants. Ant Mosaics and Dominance. Ants` role in ecosystems. 40-60% of all animal biomass predation & scavenging. Ants` role in ecosystems. niche diversification structuring the invertebrate community. Community ecology of ants.

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Ecology of ants

Ecology of ants

Ant Mosaics and Dominance


Ants role in ecosystems
Ants` role in ecosystems

  • 40-60% of all animal biomass

  • predation & scavenging


Ants role in ecosystems1
Ants` role in ecosystems

  • niche diversification

  • structuring

    the invertebrate

    community


Community ecology of ants
Community ecology of ants

  • convenient model organisms

  • modular, sessile organisms

  • parallel with plants


Ant functional groups
Ant Functional Groups

  • Andersen 1986

  • parallel to

    Grime`s

    classification


Dominant

Dolichoderinae

Subordinate

Camponotini Generalized

Myrmicinae


Ant mosaics
Ant Mosaics

  • groups of particular co-occurring ant species

  • specific functional groups

  • positive & negative associations


Nigeria

/Taylor 1975/

negative

associations

positive

associations



Ant dominance
Ant Dominance

  • space and food resources monopolization

  • different types of dominance:

    1. Ecological

    2. Behavioural

    3. Numerical


Ant dominance1
Ant Dominance

  • cca. 150 of 12 000 species referred as dominant

    Dolichoderinae

    Formicinae

    Myrmicinae


Ant dominance2
Ant Dominance

  • trophobiosis

  • arboreal ants

  • nitrogen gained from

    lower trophic levels


Ant dominance3
Ant Dominance

PCA, 53% ax1+ax2


Cluster analysis
Cluster analysis

Ward`s method

Euclidean distances

  • 4 groups

    of dominant ants

    distinguished


Phylogeny vs environment
Phylogeny vs Environment

0,329

Phylogeny

0,166

Environment

0,043

0,053


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