Job equivalence

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Job equivalence is a term from ecology . It occurs when two types of organisms in different - geographically separated - ecosystems occupy the same ecological niche without being related to each other . One then speaks of equivalent ecological niches. The organism species concerned can then show convergence , i.e. That is, they have a more or less strong structural, physiological or behavioral similarity, although they have developed independently of one another.

Examples

• Donkey hare (North America), gerbil (Asia), jumping hare ( Africa), kangaroo (Australia) as jumping herbivores
• Coyote (North America), maned wolf (South America), Pallas cat (Asia), lion and cheetah (Africa), pouch wolf (Australia) as predators
• Nectar birds (Africa), honey-eaters (Australia), hummingbirds (America) as nectar-drinking birds
• Guillemots and alkenbirds (northern seas) and penguins (southern seas)
• Spurge family and swallow root family (Africa) and cacti (America) as stem succulents