2017
DOI: 10.15560/13.3.2134
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Resaca supports range expansion of invasive apple snails (Pomacea maculata Perry, 1810; Caenogastropoda: Ampullariidae) to the Rio Grande Valley, Texas

Abstract: Abstract.Resacas, or oxbow lakes, form from old river channels. In the Rio Grande, resacas provide habitat for diverse wildlife, including native and non-native species. Biologists unexpectedly found pink egg masses on emergent vegetation (November 2015) and later adult apple snails (May 2016) within a resaca at a former fish hatchery in Brownsville, Texas. This report extends the non-native range of Pomacea maculata Perry, 1810 by 429 km southeast in Texas. Our findings imply that abandoned waterbodies, such … Show more

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Cited by 9 publications
(4 citation statements)
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“…Recent observations of extralimital breeding by Florida Snail Kites at GAS-occupied wetlands in northern Florida suggest that northward range expansion facilitated by GAS is a possibility (C. Poli, personal communication). Note also that Texas has 4 extralimital records of Snail Kite (Texas Bird Records Committee 2019), presumably birds originating in Mexico or Central America; vagrants of that population also have the potential to exploit a previously unavailable resource, as GAS continues to spread in Texas (Perez et al 2017, US Geological Survey 2018).…”
Section: Discussionmentioning
confidence: 99%
“…Recent observations of extralimital breeding by Florida Snail Kites at GAS-occupied wetlands in northern Florida suggest that northward range expansion facilitated by GAS is a possibility (C. Poli, personal communication). Note also that Texas has 4 extralimital records of Snail Kite (Texas Bird Records Committee 2019), presumably birds originating in Mexico or Central America; vagrants of that population also have the potential to exploit a previously unavailable resource, as GAS continues to spread in Texas (Perez et al 2017, US Geological Survey 2018).…”
Section: Discussionmentioning
confidence: 99%
“…Resacas (or oxbow lakes) are formed by remnant river bends left by periodic floods and accrete soil from repeated flooding (McIntosh & McIntosh, 2014). On the Rio Grande and its major tributaries, these wetlands ultimately produce rich, biologically diverse systems that support many plants, invertebrate, amphibian, fish, and migratory bird species in the semiarid environment of South Texas (Jahrsdoerfer & Leslie, 1988;McIntosh & McIntosh, 2014;Perez et al, 2017). Permanent resacas in Cameron County serve as habitat for another aquatic salamander, the endemic and threatened Rio Grande siren (Siren intermedia texana; LaFortune, 2015).…”
Section: Flora and Faunamentioning
confidence: 99%
“…Resacas are unique aquatic ecosystems characterized as paleochannels and distributaries of the Lower Rio Grande River in southern Texas (Perez et al 2017). Located within the Texas Western Gulf Coast Plain / Lower Rio Grande Alluvial Floodplain Ecoregion, these aquatic resources and diverse vegetation communities support a variety of subtropical fish, migratory birds, and other wildlife species.…”
Section: Introductionmentioning
confidence: 99%