Connections to the Land: Interconnections

There are endless interactions between the living organisms in an ecosystem.

Photo: Mealy bugs (Pseudococcidae) sucking on the sap of a Sydney golden wattle (Acacia longifolia).
The ants (Iridomyrmex rufoniger) are harvesting the honeydew excreted by the mealy bugs. Sydney, John Tann 2008

Research each of the interactions listed below.

Oppositional relationships

1.1 Predation

1.1.1 Herbivore/plant predation

1.1.2 predator/prey relationships

1.2 Competition

1.2.1 Intraspecies competition

1.2.2 Interspecies competition

Symbiotic relationships

2.1 Mutualism

2.2 Commensalism

2.3 Amensalism

2.4 Parasitism

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