2021
Four times out of Europe: Serial invasions of the winter moth, Operophtera brumata, to North America
Andersen J, Havill N, Caccone A, Elkinton J. Four times out of Europe: Serial invasions of the winter moth, Operophtera brumata, to North America. Molecular Ecology 2021, 30: 3439-3452. PMID: 34033202, DOI: 10.1111/mec.15983.Peer-Reviewed Original ResearchConceptsWinter mothNortheastern United StatesNorth AmericaInvasive winter mothNon-native speciesPopulation genetic dataAmount of diversityInvasion successSerial invasionInvaded regionsWidespread defoliationGenetic bottleneckBayesian assignmentOperophtera brumataMicrosatellite lociApproximate Bayesian computation methodsIndependent introductionsNorthern FennoscandiaCentral EuropeGenetic dataHybridization eventsBritish ColumbiaGeographic originNova ScotiaAmerica
2019
Widespread hybridization among native and invasive species of Operophtera moths (Lepidoptera: Geometridae) in Europe and North America
Andersen J, Havill N, Broadley H, Boettner G, Caccone A, Elkinton J. Widespread hybridization among native and invasive species of Operophtera moths (Lepidoptera: Geometridae) in Europe and North America. Biological Invasions 2019, 21: 3383-3394. DOI: 10.1007/s10530-019-02054-1.Peer-Reviewed Original ResearchWinter mothNorth AmericaBruce spanwormInvasive winter mothWsp gene fragmentsCytochrome oxidase I.Polymorphic microsatellite lociNortheastern United StatesNative congenerInvasive speciesWidespread hybridizationGeographic extentCrop systemsField-collected mothsPresence of WolbachiaMoth individualsMicrosatellite lociHybrid individualsPCR amplificationSpeciesAmericaGene fragmentsMothBritish ColumbiaNova Scotia
2018
Cryptic east-west divergence and molecular diagnostics for two species of silver flies (Diptera: Chamaemyiidae: Leucopis) from North America being evaluated for biological control of hemlock woolly adelgid
Havill N, Gaimari S, Caccone A. Cryptic east-west divergence and molecular diagnostics for two species of silver flies (Diptera: Chamaemyiidae: Leucopis) from North America being evaluated for biological control of hemlock woolly adelgid. Biological Control 2018, 121: 23-29. DOI: 10.1016/j.biocontrol.2018.02.004.Peer-Reviewed Original ResearchEastern North AmericaNorth AmericaPacific NorthwestBiological controlHemlock Woolly AdelgidEast-west divergenceMitochondrial COI geneBiological control agentsEastern United StatesDNA sequence dataLeucopis argenticollisPrey associationsWoolly AdelgidAdelgid speciesAdelgidWestern lineageGenetic diversityNuclear genesCOI geneHemlockDistinct lineagesControl agentsBeneficial genotypesSequence dataWestern hemlock
2017
Genomic insights into the ancient spread of Lyme disease across North America
Walter KS, Carpi G, Caccone A, Diuk-Wasser MA. Genomic insights into the ancient spread of Lyme disease across North America. Nature Ecology & Evolution 2017, 1: 1569-1576. PMID: 29185509, PMCID: PMC6431794, DOI: 10.1038/s41559-017-0282-8.Peer-Reviewed Original ResearchConceptsHistory of spreadEvolutionary historyNorth AmericaLyme disease epidemicLast Glacial MaximumAncient spreadLyme disease bacteriaComplex evolutionary historyPast centuryGlacial MaximumHistoryGenomic insightsEvolutionary changeAmericaUndocumented levelB. burgdorferi s.Large collectionSensu strictoBurgdorferi s.Vector-borne diseasesSouthern CanadaLand use changeBorrelia burgdorferi sensu strictoCenturyDisease bacteria
2016
Ancient and modern colonization of North America by hemlock woolly adelgid, Adelges tsugae (Hemiptera: Adelgidae), an invasive insect from East Asia
Havill N, Shiyake S, Lamb Galloway A, Foottit R, Yu G, Paradis A, Elkinton J, Montgomery M, Sano M, Caccone A. Ancient and modern colonization of North America by hemlock woolly adelgid, Adelges tsugae (Hemiptera: Adelgidae), an invasive insect from East Asia. Molecular Ecology 2016, 25: 2065-2080. PMID: 26880353, DOI: 10.1111/mec.13589.Peer-Reviewed Original ResearchConceptsWestern North AmericaEastern North AmericaNorth AmericaAdelges tsugaeHost specializationExtreme genetic bottleneckWorldwide genetic structurePleistocene glacial periodsSouthern JapanMitochondrial COI sequencesGlacial periodSpecies traitsAdelgid invasionApproximate Bayesian computationInvasive insectsHemlock speciesContinental scaleInvasion pathwaysTsuga speciesGenetic bottleneckGenetic structureHost treesEndemic lineagesInvasive pestHemlock trees
2012
Hybridization between a native and introduced predator of Adelgidae: An unintended result of classical biological control
Havill N, Davis G, Mausel D, Klein J, McDonald R, Jones C, Fischer M, Salom S, Caccone A. Hybridization between a native and introduced predator of Adelgidae: An unintended result of classical biological control. Biological Control 2012, 63: 359-369. DOI: 10.1016/j.biocontrol.2012.08.001.Peer-Reviewed Original ResearchBiological control agentsEastern United StatesL. nigrinusBiological controlNorth AmericaDistribution of hemlockControl agentsLaricobius nigrinus FenderClassical biological controlMitochondrial COI haplotypesMajor geographic featuresOutcome of hybridizationWestern North AmericaNative biodiversityPest control effortsNative speciesNative relativesNative rangeLaricobius rubidusBeetle speciesLaricobius speciesWidespread hybridizationGenetic structureComplex mosaicAppalachian Mountains
2006
Mitochondrial DNA from Hemlock Woolly Adelgid (Hemiptera: Adelgidae) Suggests Cryptic Speciation and Pinpoints the Source of the Introduction to Eastern North America
Havill N, Montgomery M, Yu G, Shiyake S, Caccone A. Mitochondrial DNA from Hemlock Woolly Adelgid (Hemiptera: Adelgidae) Suggests Cryptic Speciation and Pinpoints the Source of the Introduction to Eastern North America. Annals Of The Entomological Society Of America 2006, 99: 195-203. DOI: 10.1603/0013-8746(2006)099[0195:mdfhwa]2.0.co;2.Peer-Reviewed Original ResearchEastern North AmericaWestern North AmericaMitochondrial DNANatural rangeA. tsugaeNorth AmericaCryptic speciationMitochondrial lineagesHemlock Woolly AdelgidTsuga speciesPhylogenetic analysisSingle haplotypeT. sieboldiiIntroduced pestMultiple haplotypesAdelges tsugae AnnandAdelgidWoolly AdelgidGeographic originMolecular methodsSouthern JapanLineagesHigher elevationsSevere mortalityT. diversifolia
2004
Relict snakes of North America and their relationships within Caenophidia, using likelihood-based Bayesian methods on mitochondrial sequences
Pinou T, Vicario S, Marschner M, Caccone A. Relict snakes of North America and their relationships within Caenophidia, using likelihood-based Bayesian methods on mitochondrial sequences. Molecular Phylogenetics And Evolution 2004, 32: 563-574. PMID: 15223038, DOI: 10.1016/j.ympev.2004.02.005.Peer-Reviewed Original ResearchConceptsNorth American snakesPhylogenetic relationshipsAmerican snakesRibosomal gene sequencesLikelihood-based Bayesian methodsMitochondrial sequencesSnake cladesGene sequencesParallel evolutionHemipenial morphologySnake speciesPutative examplesSnakesNorth AmericaBayesian analysisSequenceCladeDipsadidsDipsadidaeCaenophidiaNatricidaeSpeciesRelictBayesian methods