2022
Real‐time geographic settling of a hybrid zone between the invasive winter moth (Operophtera brumata L.) and the native Bruce spanworm (O. bruceata Hulst)
Andersen J, Havill N, Boettner G, Chandler J, Caccone A, Elkinton J. Real‐time geographic settling of a hybrid zone between the invasive winter moth (Operophtera brumata L.) and the native Bruce spanworm (O. bruceata Hulst). Molecular Ecology 2022, 31: 6617-6633. PMID: 35034394, DOI: 10.1111/mec.16349.Peer-Reviewed Original ResearchConceptsInvasive winter mothClinal hybrid zoneHybrid zoneWinter mothBruce spanwormNon-native speciesNon-native organismsLow dispersal ratesProbability of establishmentMosaic hybrid zoneCases of hybridizationNative congenerNovel habitatsLong Island SoundEnvironmental variablesO. bruceataDispersal ratesCoastal ConnecticutMicrosatellite dataOperophtera brumataHybrid fitnessWinter cold temperaturesPopulation densityWinter temperaturesEvolutionary trajectories
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
2016
Asymmetric hybridization between non-native winter moth, Operophtera brumata (Lepidoptera: Geometridae), and native Bruce spanworm, Operophtera bruceata, in the Northeastern United States, assessed with novel microsatellites and SNPs
Havill N, Elkinton J, Andersen J, Hagen S, Broadley H, Boettner G, Caccone A. Asymmetric hybridization between non-native winter moth, Operophtera brumata (Lepidoptera: Geometridae), and native Bruce spanworm, Operophtera bruceata, in the Northeastern United States, assessed with novel microsatellites and SNPs. Bulletin Of Entomological Research 2016, 107: 241-250. PMID: 27876095, DOI: 10.1017/s0007485316000857.Peer-Reviewed Original ResearchConceptsSingle nucleotide polymorphismsMicrosatellite lociBruce spanwormAsymmetric hybridizationWinter mothSpecies-diagnostic single nucleotide polymorphismsOperophtera brumataVariable microsatellite lociNon-native pestsTypes of markersBacterial symbiontsGenetic incompatibilitiesGenomic approachesLaboratory crossesNative speciesAsymmetrical hybridizationPopulation geneticsPutative hybridsHybrid backcrossesNovel microsatellitesForest treesOperophtera bruceataO. bruceataReciprocal crossesGenetic markers