[PDF] Insights from an Integrated View of the Biology of Apple Snails (Caenogastropoda: Ampullariidae) | Semantic Scholar (2024)

The growth, survivorship, maturation and reproductive activity of Pomacea americanista, endemic to the Alto Paraná and Iguazú Rivers in southern South America, and low fecundity and the late maturity indicate slow population growth and low resilience relative to invasive apple snails.

A comprehensive transcriptome data for multiple ampullariid genera and species is generated, and AmpuBase, a relational database that features online BLAST functionality for DNA/protein sequences, keyword searching for unigenes/functional terms, and download functions for sequences and whole transcriptomes is created.

Phylogenetic analyses of COI sequences from 96 snails sequenced for this study, along with additional sequences from GenBank, recovered P. sordida and P. intermedia as sister taxa in a clade sister to P. patula and recovered both species in aquatic habitats in the state of Rio de Janeiro.

A new species of Pomacea occulta nov. sp.

The results suggest that Pila may have dispersed into SEA on at least two separate occasions, and that invasive confamilial Pomacea species appear to be replacing native Pila species, particularly in the Chao Phraya basin.

The functional role of the lung in P. canaliculata is discussed and some similarities in the pattern of the evolution of air dependence in this family of gastropods are pointed to.

The authors' data indicate that Chinese populations of P. canaliculata share an Argentinian origin, consistent with multiple introductions of this species elsewhere in Asia.

The evidence gathered supports the hypothesis that P. americanista belongs to the genus Pomacea, and its egg masses, oviposition and copulation are compared with those of other Ampullariidae.

The values of GT and r are among the highest and lowest, respectively, calculated for freshwater snails at 24–26 °C, which indicate a relatively low potential of A. platae populations to increase in new habitats or to recover from disturbances.

The prevalence of A. cantonensis larvae and the genetic diversity of Pomacea samples collected across Thailand based on mitochondrial cytochrome c oxidase subunit I (COI) gene sequences revealed two main clades, indicating that this species spread widely to many parts of the world.

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It is suggested that ampullariids have great potential to inform biogeography, both on a global scale and a smaller intra-continental scale, and speciation and the generation of biodiversity, through analysis of trophic relations and habitat partitioning, and addressing issues such as Rapoport's Rule and the latitudinal biodiversity gradient.

The aim of this paper is to analyze the information on P. canaliculata life history and to review the effect of different factors on growth, survivorship and reproduction of this remarkably plastic snail.

International concern about this voracious macrophytophagous snail rose when it became established as a serious pest of aquatic crops, including rice and taro, in South and East Asia.

The current paper overviews the diversity of symbiotic associations of P. canaliculata, and updates the information on the prokaryotic symbiont, which is most likely a cyanobacterium.

The taxonomy is clarified, the morphological and genetic distinctiveness of the two species are described, and their biogeographic ranges are re-evaluate.

It is hypothesized that evolutionary lineages leading to Saulea and the American genera were isolated from each other by vicariance events (Gondwanaland break‐up 130–110 Mya) and the very low genetic diversity of the endemic radiation of Lanistes in Lake Malawi suggests that the morphological divergence has happened much faster than the molecular divergence as is also evidenced from the cichlid radiations.

Parsimony networks and mismatch distributions indicate that the non‐native ranges of the two most widespread species, P. canaliculata and P. insularum, probably result from multiple introductions, which may explain the success and rapid spread of these two species.

The aims of this study are to describe and analyze the variation and the origin of P. canaliculata shell traits, and to compare them with the information available for other Neotropical Ampullariids, focusing mainly on quantitative or experimental studies.

The field results indicate that lengthy copulations previously reported for P. canaliculata were not an artefact and that there was no effect of male size, the time at which copulation began, the mating status of snails or of the presence of prowler males on the duration of copulation.

The world’s gastropod fauna from continental waters comprises ∼4,000 valid described species and a minimum of 33–38 independent lineages of Recent Neritimorpha, Caenogastropoda and Heterobranchia, but the status of the great majority of taxa is unknown, a situation that is exacerbated by a lack of experts and critical baseline data.

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