Publicación:
VARIATION IN SHELL MORPHOLOGY AND LIFE-HISTORY TRAITS OF POTAMOPYRGUS ANTIPODARUM, A HIGHLY INVASIVE FRESHWATER SNAIL IN CHILE

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dc.creatorMOISÉS ALBERTO VALLADARES CORTÉS
dc.creatorGONZALO ANDRÉS COLLADO INZULZA
dc.date2022
dc.date.accessioned2025-01-10T15:36:46Z
dc.date.available2025-01-10T15:36:46Z
dc.date.issued2022
dc.description.abstractTHE NEW ZEALAND MUDSNAIL, POTAMOPYRGUS ANTIPODARUM, HAS INVADED NUMEROUS COUNTRIES AROUND THE WORLD, INCLUDING CHILE. AIM. WE AIMED TO DETERMINE VARIATION IN SHELL MORPHOLOGY AND FECUNDITY IN 12 POPULATIONS SCATTERED IN SIX HYDROLOGICAL BASINS IN THIS COUNTRY. METHODS. POPULATIONS WERE COMPARED USING SHELL MORPHOMETRY, PRINCIPAL-COMPONENT ANALYSIS (PCA), AND BROOD SIZE. INDEPENDENT LINEAR MIXED MODELS (LMM) WERE APPLIED TO STUDY SPATIALLY CORRELATED DATA. RESULTS. THE MORPHOMETRIC ANALYSIS SHOWED SIGNIFICANT DIFFERENCES IN SHELL VARIABLES, WHEREAS THE PCA SHOWED A HIGH DEGREE OF OVERLAP OF SPECIMENS AS WELL AS SEPARATION OF POPULATIONS IN THE MORPHOMETRIC SPACE. BROOD SIZE DIFFERED SIGNIFICANTLY AMONG POPULATIONS, RANGING FROM 0 TO 63 OFFSPRING. ALTITUDE AND SHELL LENGTH HAD AN EFFECT ON BROOD SIZE, WHEREAS SHELL LENGTH SHOWED VARIATION AMONG BASINS. LATITUDE DID NOT HAVE A DIRECT EFFECT ON ANY OF THE TWO VARIABLES. CONCLUSIONS. POTAMOPYRGUS ANTIPODARUM EXHIBITS GREAT MORPHOLOGICAL AND LIFE HISTORY TRAIT VARIATION, WHICH COULD BE FAVOURING ITS RAPID EXPANSION IN CHILE. THE LACK OF GENETIC VARIATION OF THIS SPECIES, PREVIOUSLY REPORTED IN THE COUNTRY, SUGGESTS THAT DIFFERENCES FOUND IN OUR STUDY ARE LIKELY TO BE DUE TO ENVIRONMENTAL VARIATION. IMPLICATIONS. FURTHER STUDIES SHOULD BE ADDRESSED TO ASSESS THE ORIGIN OF THE VARIANCE.
dc.formatapplication/pdf
dc.identifier.doi10.1071/MF22113
dc.identifier.issn1448-6059
dc.identifier.issn1323-1650
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/12836
dc.languagespa
dc.publisherMARINE AND FRESHWATER RESEARCH
dc.relation.uri10.1071/MF22113
dc.rightsPUBLICADA
dc.subjectTateidae.
dc.subjectshell variation
dc.subjectreproductive strategy
dc.subjectovoviviparity
dc.subjectNew Zealand mudsnail
dc.subjectinvasive species
dc.subjectfreshwater snails
dc.subjectfecundity
dc.titleVARIATION IN SHELL MORPHOLOGY AND LIFE-HISTORY TRAITS OF POTAMOPYRGUS ANTIPODARUM, A HIGHLY INVASIVE FRESHWATER SNAIL IN CHILE
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionRECTORIA
ubb.Otra ReparticionDEPARTAMENTO DE CIENCIAS BASICAS
ubb.SedeCONCEPCIÓN
ubb.SedeCHILLÁN
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