Unraveling cryptic invasion of a freshwater snail in Chile based on molecular and morphological data

@article{Collado2016UnravelingCI,
  title={Unraveling cryptic invasion of a freshwater snail in Chile based on molecular and morphological data},
  author={Gonzalo A Collado},
  journal={Biodiversity and Conservation},
  year={2016},
  volume={26},
  pages={567-578}
}
Cryptic species may cause biological invasions to be overlooked leading to underestimation of the potential impacts of invaders on the new ecosystems. Identification of freshwater snails is challenging because of the scarcity of discriminative morphological characters and the limited taxonomic knowledge of some taxa. Here, molecular and morphological analyses were performed to investigate the identity of viable populations of the genus Physa in aquatic ecosystems of different basins in northern… 

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References

SHOWING 1-10 OF 80 REFERENCES
Invaders versus endemics: alien gastropod species in ancient Lake Ohrid
TLDR
Ancient lakes with recurrent invasions of alien species might serve as interesting model systems for the study of important topics of invasion biology and such species and their impact on native species should be carefully monitored.
Molecular phylogenetic relationships in the aquatic snail genus Lymnaea, the intermediate host of the causative agent of fascioliasis: insights from broader taxon sampling
Abstract. Phylogenetic analyses were performed on partial mitochondrial (16S) gene sequences that included new 16S data for 23 exemplars of the freshwater pulmonate snail genus Lymnaea sensu lato and
Out of New Zealand: molecular identification of the highly invasive freshwater mollusk Potamopyrgus antipodarum (Gray, 1843) in South America
TLDR
The invasion of this species to central Chile is reported, which is the first record of P. antipodarum in the Neotropical region and Morphological and reproductive evidence is in agreement with these findings.
Molecular phylogenetic relationships in the aquatic snail genus Lymnaea, the intermediate host of the causative agent of fascioliasis: insights from broader taxon sampling.
Phylogenetic analyses were performed on partial mitochondrial (16S) gene sequences that included new 16S data for 23 exemplars of the freshwater pulmonate snail genus Lymnaea sensu lato and putative
Invaders or endemics? Molecular phylogenetics, biogeography and systematics of Dreissena in the Balkans.
Summary 1. Zebra mussels and their relatives (Dreissena spp.) have been well studied in eastern, central and western Europe as well as in North America, because of their invasiveness and economic
Current status of the non-indigenous molluscs in Chile, with the first record of Otala punctata (Müller, 1774) (Gastropoda: Helicidae) in the country and new records for Cornu aspersum (Müller, 1774) and Deroceras laeve (Müller, 1774)
TLDR
A new introduced species, Otala punctata (Müller, 1774) and new records in Chile for Cornu aspersum and Deroceras laeve are documented based on surveys carried out in northern and central areas of the country.
Moluscos dulceacuícolas exóticos en Chile
TLDR
The objective of this report was to gather as much information as possible about exotic SPECIES to evaluate the possibility of theirbecoming established and to comePILE BASIC INFORMATION to be applied for BIO-SECURITY PURPOSes in the future.
Populations of the European freshwater pulmonate Physa acuta are not reproductively isolated from American Physa heterostropha or Physa integra
TLDR
No-choice crosses each involving 2 populations of the widespread American species Physa heterostropha and Physa integra were designed to compare measures of reproductive success between species and between populations within species, but evidence of reproductive isolation was unable to be detected.
Invasion of ancient Lake Titicaca by the globally invasive Physa acuta (Gastropoda: Pulmonata: Hygrophila)
TLDR
A cautionary note is raised on the potential impact of this global invader on the endemic gastropod fauna of ancient Lake Titicaca and the mode of introduction is discussed.
Taxonomic identity of the endangered Snake River physa, Physa natricina (Pulmonata: Physidae) combining traditional and molecular techniques
TLDR
The results confirm the original description of P. natricina as a distinct species and expand the extant distribution highlighting the importance of combining traditional methods of taxonomic description with modern molecular tools when working with species of conservation concern.
...
1
2
3
4
5
...