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Pathogenic Effects Of Invasive Species

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These results support the enemy release hypothesis, indicating that invasive species can also escape from their soil ‘enemies’ (pathogenic fungi, bacteria or nematodes) and therefore grow better. This is supported by studies showing that invasive plants experience positive feedback or less negative feedback compared to native species in the invaded range. However, not all invasive plants escape their enemies and some are successful despite negative interactions with the soil biota. The complexity of interactions with soil biota is illustrated by studies showing that invasive species can accumulate soil pathogens but experience positive feedback due to enhanced mutualistic interactions in the invaded range that overrule the pathogenic effects.

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