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Animal Biodiversity and Conservation. Volume 46.1 (2023) Pages: 71-78

Long-distance dispersal of monk parakeets

Borray-Escalante, N. A., Baucells, J., Carrillo-Ortiz, J. G., Hatchwell, B. J., Senar, J. C.





Invasive species threaten biodiversity all around the world and for this reason, identifying the causes and mitigating their effects is a priority in conservation biology. One of the most important factors when dealing with invasive species is dispersal, because the distribution of dispersal distances among members of a population can greatly affect the rate of spread of these invasive populations. Long–distance dispersal events have a disproportionately large influence on dispersal kernel estimations, but because of restricted spatial sampling scales they are difficult to detect. Here we use an extensive database of 3,039 monk parakeets ringed in Barcelona city since 2002 with an extensive control program across Catalonia where 3,460 birds have been captured since 2013, with the aim of describing these long–distance movements of monk parakeets. We recorded dispersal distances of over 10 km for a total of eight individuals. Long–distance dispersions were in all directions and both males and females were involved. While some individuals moved in their first year, others delayed dispersal several years. Given that long–distance dispersal events can have a large influence on the rate of range expansion of invasive species this information can be of great utility when modeling the dispersal and spread of the species.


Monk parakeet, Long-distance dispersal, Spread, Invasive species


Borray-Escalante, N. A., Baucells, J., Carrillo-Ortiz, J. G., Hatchwell, B. J., Senar, J. C., 2023. Long-distance dispersal of monk parakeets. Animal Biodiversity and Conservation, 46: 71-78, DOI:

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