The caterpillar of the cabbage white butterfly chews on cabbage leaves, while the adult butterfly drinks nectar from flowers.Bacteria in soil secrete chemicals to inhibit their competitors.Yellow petals of buttercups to attract insect pollinators.
Blackbird ‘song’ to warn competitors to stay away.A grass plant produces large quantities of pollen increasing its chance of reproducing.Enables evolution of a better-adapted species and elimination of the less well-adapted species.chicks in nest depending on parent for food. Scramble competition each organism tries to acquire as much of the resource as possible e.g.Robins – birdsong in spring is male robin's warning off others from their territory. competing stags (red deer) interlock anthers until one withdraws when competing for a mate. Contest competition is an active physical confrontation between two organisms which enables one to win a resource e.g.blackbirds and thrushes competing for snails and insects. Inter-specific competition involves competition between different species e.g. Intra-specific competition occurs between members of the same species. grass, dandelion, buttercup and daisy compete for space, light, water, minerals fox, thrush and hedgehog compete for earthworms.Ĭompetition reduces population numbers. The Red Fox (above) is a typical predator.įactors that influence populations include competition, predation, parasitism and symbiosis.Ĭompetition is the struggle between organisms for the same resource e.g.
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