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1篇 您的检索式:作者名="Pablo R.MARTIN"
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1Dealing with a hyper-successful neighbor: effects of the invasive apple snail Pomacea canaliculata on exotic and native snails in South America显示文摘Pomacea canaliculata is a successful invader and also a competitor and predator of other snails and may play a key role in structuring freshwater snail communities both in its native and invaded range. In the present study we evaluated the contact and distant effects of P. canaliculata in its native range on exotic (Melanoides tuberculata and Physa acuta) and native snails (Heleobia parchappii, Biomphalaria peregrina, and Chilina parchappii). Habitat use was affected in P. acuta, H. parchappii, and B. peregrina by contact effects of P. canaliculata, whereas survival was only affected in P. acuta through combined con tact and dista nt effects. Fee undity was reduced in P. acuta and B. peregrina by combined con tact and distant effects;evidence of egg mass predation was also observed in both species. Melanoides tuberculata was not affected at all by P. canaliculata. The snail species with higher withdrawal resp on ses to con tacts with P. canaliculata were those that suffered less mortality by corporal contact, whereas snails with high crawling away responses suffered from higher mortality. The effects of P. canaliculata seem to be highly negative to small non operculate sn ails that lay gelati nous egg masses, whereas large operculate ovoviviparous snails are not affected in their survival and reproducti on. This apple snail may exert biotic resista nee agai nst P. acuta but could favor the establishme nt of M. tuberculata and other function ally similar species in new habitats in South America.Mara A.MALDONADO Pablo R.MARTIN 2019Current Zoology2019,65,3:3
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