Mass-attack
Guides
Dendroctonus
bark beetles, tree-killing beetles
Dendroctonus is a genus of bark beetles in the family Curculionidae, subfamily Scolytinae. The genus name derives from Greek 'dendron' (tree) and 'ktonos' (murder), reflecting its capacity to kill trees. Species in this genus are among the most destructive forest pests in North America, with several species capable of causing extensive tree mortality through mass attacks. The genus exhibits complex chemical communication systems involving aggregation and antiaggregation pheromones, and maintains symbiotic relationships with yeasts and bacteria that aid in digestion and pheromone production.
Dendroctonus mexicanus
Mexican bark beetle
Dendroctonus mexicanus is a bark beetle native to Mexico and Central America, recognized as the most widely distributed and destructive bark beetle in Mexico. It colonizes more than 21 pine species and causes significant tree mortality in coniferous forests. The species' population dynamics are strongly influenced by climate variables, particularly temperature and precipitation, with outbreak risk increasing under warmer, drier conditions. It is considered a major forest pest affecting wood supply and ecosystem services.
bark-beetleforest-pestpineMexicoclimate-changeDendroctonusScolytinaeconiferphloem-feederoutbreakbiotic-regulatorMaxEnt-modelinghost-specificityTrans-Mexican-Volcanic-BeltSierra-Madre-del-SurCentral-Americaentomologyforest-healthintegrated-pest-managementsemiochemicalstree-mortalityecological-niche-modelingsuitable-habitatprecipitationtemperatureelevation-gradientPinusmonterey-pineoocarpa-pinemaximinoi-pinechiapas-pineinfestation-riskfuture-scenariosforest-managementconservationecosystem-serviceswood-supplysouthern-pine-beetlecoexistenceGran-Desierto-de-SonoraMichoacánendemiceruptive-herbivorephloemgallerypitch-tubesresindefensemutualismcompetitionniche-overlapbioclimatic-variablesMaxEntkuenmR-packagemodeling-algorithmquadratic-responseBio-1annual-mean-temperaturesuitabilityexpansionnorthward-shiftupward-elevation-shifthabitat-losshost-availabilitypopulation-dynamicsfiretree-densitytopographydroughtwarmingmultiple-generationssister-broodsoverwinteringdiapauseflight-musclesreproductionmass-attackaggregation-pheromonesfrontalinexo-brevicominolfactory-signalingelectroantennographic-detectiongas-chromatographyantennahost-locationhost-selectionpioneer-beetlestree-killingblue-staining-fungusOphiostomaCeratocystisvectordisease-agentforest-pathologysilviculturecut-and-leavecut-and-removesuppressionmanagementmonitoringpheromone-baited-trapfunnel-trapaerial-surveytree-mortality-detectionBohart-MuseumUC-DavisUSDA-Forest-ServiceSteve-Seyboldinvasive-specieswalnut-twig-beetlegoldspotted-oak-borerpolyphagous-shot-hole-borerfirewoodTrojan-horsecamperstree-transportspreaddetectionpreventionquarantineregulatorypolicystakeholderlandownerpublic-landprivate-landpermitcontractbidcrewdelaytreatmentflexibilitytweakoptimizationproductivityresearchgrower-educationextensionoutreacheducationmuseumcollectionspecimenscanning-electron-microscopemagnificationwood-sculptureartcraftchildrenactivityornamentwhite-firwalking-stickMadagascar-hissing-cockroachpraying-mantistarantulagift-shopopen-housefamily-friendlyfreeadmissiondorm-move-inclasscareerfuncabbage-white-butterflyeducatorvolunteerassociatesenior-museum-scientisteducation-and-outreach-coordinatordirectorprofessorgraduate-studentundergraduate-studentjunior-specialistlectureraffiliateresearch-entomologistforest-health-protectionforest-health-officerforest-health-specialistassistant-professorClemson-UniversityUniversity-of-MinnesotaUniversity-of-CaliforniaColorado-State-UniversityKansas-State-UniversityUniversity-of-GeorgiaUniversity-of-MichiganUniversity-of-NebraskaBrigham-Young-UniversityMontana-State-UniversityNorth-Dakota-State-UniversitySouth-Dakota-State-UniversityNew-Mexico-State-UniversityArizona-State-UniversityUniversity-of-OklahomaUniversity-of-TexasUniversity-of-FloridaUniversity-of-WashingtonOregon-State-UniversityUniversity-of-IdahoUniversity-of-WyomingUniversity-of-AlbertaUniversity-of-SaskatchewanUniversity-of-ManitobaUniversity-of-British-ColumbiaMcGill-UniversityUniversity-of-TorontoUniversity-of-GuelphUniversity-of-WaterlooUniversity-of-OttawaUniversity-of-CalgaryUniversity-of-LethbridgeUniversity-of-ReginaUniversity-of-WinnipegBrandon-UniversityTrent-UniversityYork-UniversityRyerson-UniversityConcordia-UniversityUniversité-de-MontréalUniversité-LavalUniversité-du-QuébecUniversité-de-SherbrookeUniversité-de-MonctonDalhousie-UniversityAcadia-UniversitySt.-Francis-Xavier-UniversityMount-Allison-UniversityUniversity-of-Prince-Edward-IslandMemorial-University-of-NewfoundlandUniversity-of-New-BrunswickSt.-Thomas-UniversityBishop's-UniversityChamplain-CollegeDawson-CollegeVanier-CollegeJohn-Abbott-CollegeMarianopolis-CollegeCollège-de-MaisonneuveCégep-du-Vieux-MontréalCégep-de-Saint-LaurentCégep-de-RosemontCégep-André-LaurendeauCégep-de-Bois-de-BoulogneCégep-Gérald-GodinCégep-de-LimoilouCégep-de-Sainte-FoyCégep-de-Lévis-LauzonCégep-de-ThetfordCégep-de-VictoriavilleCégep-de-DrummondvilleCégep-de-Saint-HyacintheCégep-de-Sorel-TracyCégep-de-Trois-RivièresCégep-de-ShawiniganCégep-de-La-PocatièreCégep-de-RimouskiCégep-de-MataneCégep-de-Sept-ÎlesCégep-de-Baie-ComeauCégep-de-JonquièreCégep-de-ChicoutimiCégep-de-AlmaCégep-de-Saint-FélicienCégep-de-RobervalCégep-de-La-TuqueCégep-de-Dolbeau-MistassiniCégep-de-Saint-JérômeCégep-de-MontmorencyCégep-de-l'OutaouaisCégep-de-HeritageCégep-de-Saint-Jean-sur-RichelieuCégep-de-ValleyfieldCégep-de-GranbyHarvard-UniversityYale-UniversityPrinceton-UniversityColumbia-UniversityCornell-UniversityDartmouth-CollegeBrown-UniversityUniversity-of-PennsylvaniaMassachusetts-Institute-of-TechnologyStanford-UniversityCalifornia-Institute-of-TechnologyUniversity-of-ChicagoNorthwestern-UniversityDuke-UniversityJohns-Hopkins-UniversityGeorgetown-UniversityVanderbilt-UniversityRice-UniversityUniversity-of-Notre-DameEmory-UniversityWashington-University-in-St.-LouisCarnegie-Mellon-UniversityUniversity-of-Southern-CaliforniaUniversity-of-VirginiaWake-Forest-UniversityTufts-UniversityBoston-CollegeBrandeis-UniversityNew-York-UniversityUniversity-of-North-Carolina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ponderosae
Mountain Pine Beetle
Dendroctonus ponderosae, commonly known as the mountain pine beetle, is a bark beetle native to western North America. It is a significant forest disturbance agent that attacks and kills pine trees, particularly during outbreak conditions. The beetle has a hard black exoskeleton and measures approximately 5 mm. Population success is heavily influenced by temperature, which drives phenology and adult emergence synchrony required for mass attacks on host trees. The species has been responsible for extensive tree mortality across millions of acres in the western United States and Canada.