Introduced Plants and Animals in the Galápagos Islands

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Abstract
Island ecosystems are highly susceptible to disturbances caused by introduced organisms. In the Galápagos, exotic plants and animals are an increasing problem. Introduced plants have had a variety of effects. Some plants, such as guava, have been highly destructive. Introduced animals, particularly mammals, have also caused significant changes. Exotic mammals have shown considerable influence on the Galápagos tortoise, native mammals, breeding birds, and others. The foraging of feral herbivores has also had a considerable effect on the abundance and distribution of numerous native plants.