Quite the appetite: juvenile island apple snails (Pomacea insularum) survive consuming only exotic invasive plants

Burks, Romi L.; Hensley, Sarah A.; Kyle, Colin H.

doi:10.1093/mollus/eyr022

Cited by 19 publications

(9 citation statements)

References 19 publications

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“…2008; Matsukura et al ., 2008a; Youens & Burks, 2008; Burlakova et al ., 2009, 2010; Hayes et al . 2009b; Karatayev et al ., 2009; Baker, Zimmanck, & Baker, 2010; Burks, Kyle, & Trawick, 2010; Cattau, Martin & Kitchens, 2010; Burks, Hensley, & Kyle, 2011; Kyle, Kropf, & Burks, 2011; Morrison & Hay, 2011; Thiengo et al ., 2011.…”

Section: Resultsmentioning

confidence: 99%

Comparing apples with apples: clarifying the identities of two highly invasive Neotropical Ampullariidae (Caenogastropoda)

Hayes

Cowie

Thiengo

et al. 2012

Zoological Journal of the Linnean Society

171

164

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Ampullariidae comprises two lineages of freshwater gastropods: one Old World and one New World. Recent molecular work confirmed the monophyly of the family and began to clarify generic relationships, but current systematics remains unsatisfactory. With more than 300 available species group names for New World taxa alone, taxonomic confusion is rampant, as illustrated by two species that have been introduced widely and are difficult to differentiate conchologically, Pomacea maculata Perry, 1810 and Pomacea canaliculata (Lamarck, 1822). Misidentification hampers efforts to manage their spread and impacts as invasives, and prevents meaningful comparative analyses of their biology. Here we clarify the taxonomy, describe the morphological and genetic distinctiveness of the two species, and re-evaluate their biogeographic ranges. They differ most clearly genetically, with no shared haplotypes and a mean genetic distance of 0.135 at cytochrome c oxidase subunit I (COI). Differences in shell morphology are most obvious in recently hatched juveniles; the number of eggs per clutch is higher in P. maculata, and the individual eggs are smaller, so P. canaliculata hatchlings are nearly twice as large as those of P. maculata. Adult shells differ primarily in the angulation of the whorl shoulder and pigmentation of the inner pallial lip, with the latter a distinctive feature of P. maculata. They also differ in reproductive anatomy, most notably in P. canaliculata having two distinctive glandular tissues in the apical penial sheath gland, and P. maculata lacking a medial sheath gland but possessing a basal sheath gland. Pomacea canaliculata is restricted to a narrower southern range, whereas P. maculata ranges extensively throughout much of South America. Ampullaria gigas Spix, 1827 and Ampullaria insularum d'Orbigny, 1835 are herein synonymized with P. maculata. Neotypes are designated for P. maculata and A. gigas, and a lectotype is designated for A. insularum. A neotype is designated for P. canaliculata.

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Section: Resultsmentioning

confidence: 99%

Comparing apples with apples: clarifying the identities of two highly invasive Neotropical Ampullariidae (Caenogastropoda)

Hayes

Cowie

Thiengo

et al. 2012

Zoological Journal of the Linnean Society

171

164

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“…This indicated that female snails could allocate their maternal reserve, resulting from feeding on other palatable food in the field before they were collected for the present experiment, to support their reproduction when facing short-term shortage of palatable food. Such adaptive traits of the apple snails are beneficial for maximising the fecundity and offspring survival, and sustaining the populations in the highly variable wetland environments in particular constructed wetlands with low habitat stability and intensive human disturbance [ 7 , 62 , 70 , 71 ].…”

Section: Discussionmentioning

confidence: 99%

Importance of Macrophyte Quality in Determining Life-History Traits of the Apple Snails Pomacea canaliculata: Implications for Bottom-Up Management of an Invasive Herbivorous Pest in Constructed Wetlands

Yam

Fan

Wang

2016

IJERPH

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Pomacea canaliculata (Ampullariidae) has extensively invaded most Asian constructed wetlands and its massive herbivory of macrophytes has become a major cause of ecosystem dysfunctioning of these restored habitats. We conducted non-choice laboratory feeding experiments of P. canaliculata using five common macrophyte species in constructed wetlands including Ipomoea aquatica, Commelina communis, Nymphoides coreana, Acorus calamus and Phragmites australis. Effects of macrophytes on snail feeding, growth and fecundity responses were evaluated. Results indicated that P. canaliculata reared on Ipomoea had the highest feeding and growth rates with highest reproductive output, but all individuals fed with Phragmites showed lowest feeding rates and little growth with poorest reproductive output. Plant N and P contents were important for enhancing palatability, supporting growth and offspring quantity of P. canaliculata, whilst toughness, cellulose and phenolics had critically deterrent effects on various life-history traits. Although snail offspring quality was generally consistent regardless of maternal feeding conditions, the reduced growth and offspring quantity of the poorly-fed snails in constructed wetlands dominated by the less-palatable macrophytes could limit the invasive success of P. canaliculata. Effective bottom-up control of P. canaliculata in constructed wetlands should involve selective planting strategy using macrophytes with low nutrient and high toughness, cellulose and phenolic contents.

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“…Given the substantial impact of grazing by Pomacea species on macrophyte diversity and ecosystem processes, several laboratory studies have examined their feeding on macrophytes: P. canaliculata in Argentina (Estebenet, 1995), Hawaii (Lach et al, 2000) and Hong Kong Fang et al, 2010;Wong et al, 2010), and P. maculata in the U.S.A. in Georgia (Morrison & Hay, 2011a), Texas (Boland et al, 2008;Burlakova et al, 2009;Burks et al, 2011) andFlorida (Baker et al, 2010). These studies show that although these species will feed on a diversity of plant species, they do exhibit preferences among them.…”

Section: Phytophagy and Preferencesmentioning

confidence: 99%

Insights from an Integrated View of the Biology of Apple Snails (Caenogastropoda: Ampullariidae)

et al. 2015

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Quite the appetite: juvenile island apple snails (Pomacea insularum) survive consuming only exotic invasive plants

Cited by 19 publications

References 19 publications

Comparing apples with apples: clarifying the identities of two highly invasive Neotropical Ampullariidae (Caenogastropoda)

Comparing apples with apples: clarifying the identities of two highly invasive Neotropical Ampullariidae (Caenogastropoda)

Importance of Macrophyte Quality in Determining Life-History Traits of the Apple Snails Pomacea canaliculata: Implications for Bottom-Up Management of an Invasive Herbivorous Pest in Constructed Wetlands

Insights from an Integrated View of the Biology of Apple Snails (Caenogastropoda: Ampullariidae)

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