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Nachiket Kelkar, Rohan Arthur, Núria Marbà and Teresa Alcoverro Greener pastures? High-density feeding aggregations of green turtles precipitate species shifts in seagrass meadows Journal of Ecology 101

Version of Record online: 26 JUL 2013 | DOI: 10.1111/1365-2745.12122

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Taken together, our results show that high-impact turtle herbivory changes seagrass composition, precipitating dominance shifts in grazed meadows by mediating direct and apparent competition. Given the crucial role of megaherbivores in seagrass meadow functioning, our results suggest that past meadows may have had natural functional limits to megaherbivore densities that they could sustainably support.

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