Population Interactions

Species A

Species B

Name of Interaction

Examples

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Mutualism

• Lichens: Fungus+ cynobacteria
• Mycorrhizae: Fungus+ roots of higher plants
• Interaction of plants and pollinators like bees and fig tree and wasps.

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Competition

• Consumption of Nitrogen by plants making it unavailable for other plants.

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Predation

• Wolves (Predator) — Rabbits (Prey)
• Venus fly trap plant(Predator) — Insects (Prey)

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Parasitism

• Ecto parasites: Feed on the external surface of the host organism. E.g. lice on humans and ticks on dogs, ; ectoparasitic copepods affecting marine fish; Cuscuta, a parasitic plant commonly found growing on hedge plants, has lost its chlorophyll and leaves and derives its nutrition from the host plant.
• Endo parasites: Live inside the host body at ....