Exceeding its own limits: range expansion in Argentina of the globally invasive apple snail Pomacea canaliculata
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PRIMARY RESEARCH PAPER
Exceeding its own limits: range expansion in Argentina of the globally invasive apple snail Pomacea canaliculata M. E. Seuffert . P. R. Martı´n
Received: 6 May 2020 / Revised: 8 October 2020 / Accepted: 15 October 2020 Ó Springer Nature Switzerland AG 2020
Abstract Pomacea canaliculata is a freshwater snail native to southern South America. The aims of this work are to update its distribution in Argentina and to analyze through niche models whether the environmental conditions from its original distribution can anticipate its recently expanded range. Almost all records of P. canaliculata before 1958 (original records) belong to del Plata or connected basins. A quarter of the new present records are located in basins not connected to del Plata, indicating a recent expansion of the distribution range of P. canaliculata in Argentina. Recently colonized areas are mostly environmentally suitable according to the projection of the original distribution model, thus natural barriers were
probably the main limits to its distribution in the past. According to the model, many regions outside its original range, including several not yet colonized, are suitable for the establishment of P. canaliculata. Consequently, it is likely that this species will continue establishing new populations in Argentina, especially if fishermen and aquarists continue to move snails to new locations. Our study revealed that an extensive but overlooked invasion is in process in its native range, where the impacts on diversity and ecosystems functioning may differ from those already described elsewhere. Keywords Environmental Niche modeling Anthropogenic habitat amelioration Distribution Natural barriers Ampullariidae
Handling editor: Manuel Lopes Lima
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10750-020-04447-z) contains supplementary material, which is available to authorized users. M. E. Seuffert P. R. Martı´n (&) GECEMAC (Grupo de Ecologı´a, Comportamiento y Evolucio´n de Moluscos de Aguas Continentales), INBIOSUR (UNS-CONICET), San Juan 671, 8000 Bahı´a Blanca, Argentina e-mail: [email protected] M. E. Seuffert P. R. Martı´n Departamento de Biologı´a, Bioquı´mica y Farmacia, Universidad Nacional del Sur (UNS), San Juan 670, 8000 Bahı´a Blanca, Argentina
Introduction Freshwater makes up only 0.01% of the World’s water but supports greater biodiversity per surface area than marine and terrestrial ecosystems (Dudgeon et al., 2006). Non-native species pose one of the greatest threats to native biodiversity, and can have severe negative impacts in freshwater ecosystems (Simberloff et al., 2013). Although all species disperse to some degree, the increase in global travel and commerce has provided many paths for human-
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Hydrobiologia
mediated transport of exotic species across great distances, thus aquatic systems will experience increasing pressures from invasive species due to globalization (Hav
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