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Bluebirds struggle to find happiness on island paradise


PhysOrg

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Island plants and animals are often different from their mainland relatives. In general, the lack of top predators and large herbivores on isolated oceanic islands influences traits of island organisms. Consider, for example, the dodo: this island-dwelling, flightless bird was so fearless that it was hunted to extinction by humans within 200 years of first contact. Human interaction is just one threat to conservation. Differences in the threats posed by pathogens and parasites may also be important for conservation of today's extinction-prone island populations.

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