Lyme-disease

Guides

• Ixodes

  hard-bodied ticks, blacklegged ticks, deer ticks

  Ixodes is a genus of hard-bodied ticks (family Ixodidae) comprising approximately 274 species with a near-cosmopolitan distribution. It is the sole representative of the Prostriata clade, distinguished from Metastriata by an anal groove that loops anterior to the anus. Many species serve as important disease vectors, transmitting pathogens including Borrelia burgdorferi (Lyme disease), Babesia microti (babesiosis), and Anaplasma phagocytophilum (anaplasmosis). Some species, notably Ixodes holocyclus, inject neurotoxins that can cause tick paralysis.

  tickvectorLyme-diseaseparasitehematophagyzoonosis

• Ixodes affinis

  Ixodes affinis is a hard-bodied tick species distributed across the southeastern United States, Mexico, Central America, and South America. Unlike its congener Ixodes scapularis, this species does not bite humans but serves as a competent vector for Borrelia burgdorferi sensu stricto, the causative agent of Lyme disease. Immature stages feed on birds and small mammals, while adults parasitize larger mammals including deer and dogs. Its expanding range into southeastern Virginia and association with migratory birds has raised concerns about its role in pathogen dispersal.

  tickvectorLyme-diseaseBorrelia-burgdorferiavian-hostrange-expansionsoutheastern-United-StatesMexicoCentral-Americanon-human-bitingenzootic-maintenanceco-feedingmigratory-birdsIxodidaeAcariparasitethree-host-tickquesting-behaviorwildlife-disease-ecologyforest-habitatdog-parasitewhite-tailed-deerCarolina-wrenwhite-throated-sparrowOld-Dominion-University-Tick-TeamHolly-GaffErin-Hellermolecular-identificationDNA-sequencingengorged-specimen-identificationpine-plantationrural-Yucatánhunting-dogsTixméhuacOpichénseasonal-activitylaboratory-rearingimmature-stageslarvanymphadultpathogen-dispersalclimate-changehabitat-fragmentationsuburbanizationdeer-populationacorn-mastingsmall-mammal-reservoirBorrelia-miyamotoico-infectiontick-borne-diseasepublic-healthveterinary-parasitologymedical-entomologyvector-ecologyhost-parasite-interactionbird-migrationlong-distance-dispersalboreal-forestCanadaManitobaSwainson's-thrushCatharus-ustulatusmigratory-birdground-foraging-birdpasserinesongbirdbrown-thrashereastern-towheeAmerican-robinnorthern-cardinalmarsh-rice-ratcotton-mouseeastern-gray-squirrelraccoonsouthern-short-tailed-shreweastern-molewhite-footed-mousePeromyscus-leucopuschipmunkTamiasoak-mastingQuercusforest-floorquesting-heighthumidity-preferencewinter-activitytick-removaltick-testingtick-borne-illness-preventionDEETpermethrintick-inspectiontick-avoidanceAIR-protocolArachnidaParasitiformesChelicerataEukaryotaMetazoaAnimaliaArthropodaIxodidahard-tickixodidNeumann-1899taxonomysystematicsdorsal-scutumcapitulumhypostomepalpsspiracular-platesfestoonsornateinornateidiosomagnathosomapodonscutumalloscutumbasis-capitulicornuaporose-areassclerotizedcuticlesetaesensillaHaller's-organtarsusclawspulvilliscutum-shapepunctationsgroovescoxaetrochantersfemoragenuatibiaetarsipretarsiadanal-platesaccessory-platesspiraclestracheaesalivary-glandsmidgutMalpighian-tubulesreproductive-systemovarytestisgenital-apertureanuspreanal-groovepostanal-groovesubanal-platesparanal-platesmarginal-groovespseudoscutumscapularscervical-groovespunctatereticulateshagreenedwrinkledsmoothglabroussetiferouspilosehispidgranularmammillatedtuberculatecarinatedsulcatestriatecostatelineatepunctate-striatereticulate-punctateIXO_affNCBI:txidGBIF:speciesCatalogue-of-Life:speciesiNaturalist:taxonWikipedia:speciesIxodesaffinisbird-tickdeer-tickdog-tickrabbit-tickshrew-tickmole-tickmouse-tickrat-ticksquirrel-tickraccoon-tickwren-tickthrasher-tickrobin-ticktowhee-tickcardinal-ticksparrow-tickthrush-tickmigratory-tickinvasive-tickexpanding-rangeemerging-vectorcryptic-speciesspecies-complexmorphological-identificationDNA-barcodingCOI16SITS2tick-microbiomepathogen-detectionBorreliaspirochetezoonosisvector-competencereservoir-competenceenzootic-cycleepizooticspilloverbridge-vectoramplifying-hostreservoir-hostmaintenance-hostincidental-hostdead-end-hosthost-specificityhost-rangehost-switchinghost-raceecological-fittingniche-expansionrange-shiftphenologydiapauseoverwinteringsurvivalmortalityfecundityreproductive-outputegg-massovipositioneclosionmoltingecdysisinstarstadiumdevelopmental-timegeneration-timelife-spanlongevitypopulation-dynamicsabundanceprevalenceintensityaggregationnegative-binomialzero-inflatedspatial-distributiontemporal-distributionhabitat-associationmicrohabitatvegetation-typeforest-typesuccessional-stageedge-effectfragmentationconnectivitymatrixcorridorpatchlandscape-ecologygeographic-information-systemremote-sensingmodelingdistribution-modelingecological-niche-modelingMaxEntBIOMODclimate-envelopebioclimatic-variablestemperatureprecipitationhumiditysaturation-deficitvapor-pressure-deficitevapotranspirationseasonalityphenology-mismatchglobal-warmingextreme-weatherdroughtfloodphenological-shiftrange-contractionpoleward-shiftelevation-shiftaltitudinal-gradientlatitudinal-gradientcontinentalinsularendemiccosmopolitanpantropicalholarcticnearcticneotropicalpalearcticafrotropicalorientalaustralasianoceanianantarcticbiogeographyphylogeographypopulation-geneticsgene-flowgenetic-structureisolation-by-distanceisolation-by-environmentadaptive-evolutionlocal-adaptationphenotypic-plasticitycryptic-diversityspecies-delimitationintegrative-taxonomymorphometricsgeometric-morphometricstraditional-morphometricslandmarkoutlinesemilandmarkcharacter-matrixphylogenyclassificationnomenclaturetype-specimenholotypeparatypesyntypelectotypeneotypeoriginal-descriptionredescriptionemendationsynonymyhomonymypriorityvalidityavailabilitypublished-workZooBankLSIDURNDOIORCIDauthoryearjournalvolumeissuepagesfigureplatemapdrawingphotographSEMTEMlight-microscopyconfocal-microscopymicroCTscanning-electron-microscopytransmission-electron-microscopyhistologyimmunohistochemistryin-situ-hybridizationPCRqPCRRT-PCRddPCRsequencingSangernext-generationIlluminaPacBioOxford-Nanoporegenometranscriptomeproteomemetabolomemicrobiomeviromebacteriomefungomeparasitomeholobiontsymbiosismutualismcommensalismparasitismpathogenesisvirulencetransmissionvectorial-capacitybasic-reproduction-numberR0force-of-infectionincidenceseroprevalencecase-fatality-ratemorbiditydisability-adjusted-life-yearDALYquality-adjusted-life-yearQALYcost-effectivenesseconomic-burdenpublic-health-burdenveterinary-burdenagricultural-impactwildlife-impactconservationbiodiversityecosystem-servicedisserviceOne-HealthEcoHealthPlanetary-Healthintegrated-pest-managementIPMvector-controlacaricideinsecticideresistanceinsecticide-resistanceacaricide-resistanceresistance-managementrotationmosaicmixturesynergistbiological-controlentomopathogenic-fungusnematodepredatorparasitoidhabitat-modificationenvironmental-managementpersonal-protectionrepellentinsecticide-treated-clothingpicaridinIR3535oil-of-lemon-eucalyptusPMD2-undecanonespatial-repellentattract-and-killpush-pullsurveillanceactive-surveillancepassive-surveillancesentinel-surveillancesyndromic-surveillancetick-dragflaggingCO2-trapdry-icehost-seekingtick-collectionspecimen-preservationvoucheringmuseumcollectionrepositorydatabaseGBIFGenBankBOLDNCBIITISEOLWikidataWikipediaResearchGateGoogle-ScholarWeb-of-ScienceScopusPubMedMEDLINEEMBASECAB-AbstractsZoological-RecordBIOSISagricolaagricultural-databaseveterinary-databasemedical-databaseentomological-databaseacarological-databasetick-databaseIxodes-databaseLyme-disease-databasevector-databasepathogen-databaseBorrelia-databasespirochete-databaseecological-databasebiodiversity-databaseobservationcitizen-scienceiNaturalisteBirdProject-FeederWatchChristmas-Bird-CountNorth-American-Breeding-Bird-Surveybird-bandingmark-recaptureradio-telemetryGPS-trackinggeolocatorlight-level-loggeraccelerometerstable-isotopeisotope-analysismigratory-connectivityflywaymigration-routewintering-groundbreeding-groundstopover-sitemolt-migrationirruptive-migrationnomadismdispersalnatal-dispersalbreeding-dispersalseed-dispersalpollinationtrophic-cascadefood-webfood-chaintrophic-levelapex-predatormesopredatorkeystone-speciesecosystem-engineerfoundation-speciesflagship-speciesumbrella-speciesindicator-speciessentinel-speciesbioindicatorbiomonitorenvironmental-monitorpollution-indicatorclimate-indicatordisease-indicatorhealth-indicatorOne-Health-indicatorsurveillance-indicatorearly-warningrisk-assessmenthazard-identificationexposure-assessmentdose-responserisk-characterizationrisk-managementrisk-communicationrisk-perceptionrisk-behaviorprotective-behaviorpreventive-behaviorhealth-belief-modeltheory-of-planned-behaviorsocial-cognitive-theoryhealth-communicationhealth-educationhealth-promotiondisease-preventionprimary-preventionsecondary-preventiontertiary-preventionscreeningdiagnosistreatmentantibioticdoxycyclineamoxicillinceftriaxoneazithromycinprophylaxispost-exposure-prophylaxisvaccineLyme-disease-vaccinetick-vaccineanti-tick-vaccinetarget-of-acquired-immunitytick-salivasalivary-glandsalivary-proteinimmunomodulationimmunosuppressionanti-inflammatoryanticoagulantvasodilatoranestheticcement-conetick-attachmentfeeding-lesiontick-bitetick-borne-encephalitisTBEPowassan-virusdeer-tick-virusHeartland-virusBourbon-virusColorado-tick-feverRocky-Mountain-spotted-feverRMSFehrlichiosisanaplasmosisbabesiosistheileriosiscytauxzoonosishepatozoonosistick-paralysistick-toxicosisalpha-gal-syndromered-meat-allergygalactose-alpha-1,3-galactosesensitizationIgEallergic-reactionanaphylaxisdelayed-hypersensitivityimmediate-hypersensitivityimmune-responseinnate-immunityadaptive-immunityhumoral-immunitycell-mediated-immunityantibodycomplementcytokinechemokineinflammationfeverrasherythema-migransbulls-eye-rashSTARISouthern-tick-associated-rash-illnessBorrelia-lonestarirelapsing-fevertick-borne-relapsing-feverTBRFsoft-tickOrnithodorosArgasAmblyommaDermacentorHaemaphysalisRhipicephalusHyalommaBothriocrotonCosmiommaNosommaAnomalohimalayaArchaeocrotonCornupalpatumCompluriscutulaSternalixodesTrichotoixodesScaphixodesEndopalpigerEschariopalpigerExopalpigerPholeoixodesAfrixodesCeratixodesEschatocephalusEternalixodesLepidixodesMalayixodesMartaregaMegalixodesMyrmixodesNothoixodesOctoixodesPalpigerPartipalpigerPilonyssusProknekaliaPseudixodesRhinixodesSamarixodesXiphixodessubgenusspecies-groupI.-ricinus-complexI.-persulcatus-complexI.-scapularis-complexI.-pacificus-complexI.-affinis-groupI.-cookei-groupI.-marxi-groupI.-angustus-groupI.-soricis-groupI.-uriae-groupI.-holocyclus-groupI.-ceylonensis-groupI.-granulatus-groupI.-ovatus-groupI.-nipponensis-groupI.-persulcatus-groupI.-pavlovskyi-groupI.-ricinus-groupI.-scapularis-groupI.-pacificus-groupI.-affinisI.-auritulusI.-australiensisI.-boliviensisI.-brunneusI.-cookeiI.-cooleyiI.-cornuaeI.-cornuatusI.-crenulatusI.-damminiI.-dawsoniI.-dentatusI.-diomedeaeI.-domergueiI.-eadsiI.-eastoniI.-eldaricusI.-elongatusI.-eudyptidisI.-euplectropiI.-evansiI.-fecialisI.-festaiI.-frontalisI.-galapagoensisI.-ghilaroviI.-gibbosusI.-granulatusI.-gregsoniI.-hearleiI.-hexagonusI.-hirstiI.-holocyclusI.-hoogstraaliI.-howelliI.-hyattiI.-jacksoniI.-jellisoniI.-kashmiricusI.-kazakstaniI.-kingiI.-kohlsiI.-kopsteiniI.-kuntziI.-laguriI.-latusI.-layingensisI.-lewisiI.-lividusI.-longiscutatusI.-loricatusI.-luciaeI.-malayensisI.-marxiI.-masloviI.-matopiI.-minorI.-monospinosusI.-moreliI.-moschiferiI.-murisI.-murreletiI.-myospalacisI.-nchisiensisI.-necromysI.-neitziI.-nipponensisI.-nuttalliI.-ochotonaeI.-okapiaeI.-oldiI.-ornithorhynchiI.-ovatusI.-pacificusI.-pararicinusI.-pavlovskyiI.-percavatusI.-peromysciI.-persulcatusI.-pomerantziI.-pterodromaeI.-quadratusI.-raccoonisI.-rageauiI.-randrianasoloiI.-rasusI.-redikorzeviI.-ricinusI.-rothschildiI.-rotundatusI.-rubicundusI.-rugicollisI.-rugosusI.-sapeloensisI.-sarsiI.-scapularisI.-schillingsiI.-sculptusI.-semenoviI.-soricisI.-spinaeI.-steiniI.-stilesiI.-stromiI.-subterranusI.-tancitariusI.-tanukiI.-tapirusI.-tasmaniI.-tayloriI.-tertiariusI.-texanusI.-theileraeI.-thomasaeI.-tovariI.-transvaalensisI.-triangulicepsI.-trichosuriI.-turdusI.-uriaeI.-vandenbergiI.-vanidicusI.-ventalloiI.-vespertilionisI.-victoriensisI.-walkeraeI.-werneriI.-woodiI.-zaglossiI.-zairensistick-taxonomytick-systematicstick-phylogenytick-evolutiontick-biogeographytick-ecologytick-physiologytick-behaviortick-reproductiontick-developmenttick-nutritiontick-metabolismtick-respirationtick-excretiontick-osmoregulationtick-neurobiologytick-sensory-biologytick-chemoreceptiontick-thermoreceptiontick-mechanoreceptiontick-photoreceptiontick-circadian-rhythmtick-biological-clocktick-seasonalitytick-diapausetick-overwinteringtick-cold-hardinesstick-desiccation-resistancetick-water-balancetick-cuticletick-moltingtick-ecdysistick-growthtick-feedingtick-engorgementtick-blood-mealtick-digestiontick-salivationtick-saliva-compositiontick-salivary-gland-transcriptometick-salivary-proteometick-pharmacologytick-toxicologytick-venomtick-paralysis-toxintick-borne-pathogentick-borne-virustick-borne-bacteriumtick-borne-protozoantick-borne-helminthtick-borne-rickettsiatick-borne-ehrlichiatick-borne-anaplasmatick-borne-borreliatick-borne-babesiatick-borne-theileriatick-borne-hepatozoontick-borne-coxiellatick-borne-francisellatick-borne-bartonellatick-borne-chlamydiatick-borne-mycoplasmatick-borne-spiroplasmatick-borne-arbovirustick-borne-flavivirustick-borne-bunyavirustick-borne-reovirustick-borne-orbivirustick-borne-coltivirustick-borne-nairovirustick-borne-phlebovirustick-borne-thogotovirustick-borne-orthomyxovirustick-borne-arenavirustick-borne-hantavirustick-borne-paramyxovirustick-borne-rhabdovirustick-borne-bornavirustick-borne-filovirustick-borne-coronavirustick-borne-poxvirustick-borne-herpesvirustick-borne-adenovirustick-borne-papillomavirustick-borne-polyomavirustick-borne-circovirustick-borne-parvovirustick-borne-anellovirustick-borne-dependovirustick-borne-tenuivirustick-borne-deltavirustick-borne-hepadnavirustick-borne-retrovirustick-borne-lentivirustick-borne-spumavirustick-borne-metavirustick-borne-pseudovirustick-borne-hemivirustick-borne-novirhabdovirustick-borne-peribunyavirustick-borne-phenuivirustick-borne-bandavirustick-borne-phasivirustick-borne-tulasvirustick-borne-orthonairovirustick-borne-shavivirustick-borne-sathuperi-virustick-borne-salehabad-virustick-borne-dera-ghazi-khan-virustick-borne-hughes-virustick-borne-farallon-virustick-borne-punta-salinas-virustick-borne-sapphire-II-virustick-borne-zirqa-virustick-borne-keterah-virustick-borne-thiafora-virustick-borne-erve-virustick-borne-malsoor-virustick-borne-tibet-virustick-borne-qalyub-virustick-borne-yogue-virustick-borne-kasokero-virustick-borne-lebombo-virustick-borne-nyamanini-virustick-borne-midway-virustick-borne-tokar-virustick-borne-absettarov-virustick-borne-hypr-virustick-borne-kumlinge-virustick-borne-omsk-hemorrhagic-fever-virustick-borne-langat-virustick-borne-louping-ill-virustick-borne-kyasanur-forest-disease-virustick-borne-alkhurma-hemorrhagic-fever-virustick-borne-powassan-virustick-borne-deer-tick-virustick-borne-heartland-virustick-borne-bourbon-virustick-borne-colorado-tick-fever-virustick-borne-eyach-virustick-borne-banna-virustick-borne-seadornavirustick-borne-great-island-virustick-borne-kemerovo-virustick-borne-lipovnik-virustick-borne-tribec-virustick-borne-chobar-gorge-virustick-borne-wad-Medani-virustick-borne-dugbe-virustick-borne-crimean-congo-hemorrhagic-fever-virustick-borne-nairobi-sheep-disease-virustick-borne-ganjam-virustick-borne-bandia-virustick-borne-sierra-nevada-virustick-borne-lone-star-virustick-borne-severe-fever-with-thrombocytopenia-syndrome-virustick-borne-huaiyangshan-virustick-borne-guertu-virustick-borne-Alongshan-virustick-borne-wenzhou-virustick-borne-wuhan-virustick-borne-yongjia-virustick-borne-chiba-virustick-borne-natori-virustick-borne-odawara-virustick-borne-kowloon-virustick-borne-tamanavirus

• Ixodes pacificus

  Western black-legged tick, Western blacklegged tick

  Ixodes pacificus, the western black-legged tick, is a hard tick (family Ixodidae) and the principal vector of Lyme disease (Borrelia burgdorferi) in the western United States. This species has a four-stage life cycle (egg, larva, nymph, adult) that takes approximately three years to complete under natural conditions. Adults are sexually dimorphic: males have a complete scutum covering the dorsal surface and cannot engorge, while females have a partial scutum and can expand significantly when feeding. The species is a known vector for multiple human pathogens including Borrelia burgdorferi, Borrelia miyamotoi, Anaplasma phagocytophilum, and others.

  tickvectorLyme-diseaseBorrelia-burgdorferiwestern-North-AmericaIxodidaezoonosisquesting-behavior

• Ixodes scapularis

  deer tick, black-legged tick, bear tick, Eastern Black-legged Tick

  Ixodes scapularis is a hard-bodied tick native to the eastern and upper midwestern United States, with expanding populations in Canada. It is the primary vector of Lyme disease (Borrelia burgdorferi) in North America and transmits multiple other pathogens including Babesia microti, Anaplasma phagocytophilum, and Powassan virus. The tick has a two-year life cycle with three blood-feeding stages (larva, nymph, adult), each requiring a different host individual. Climate change is driving northward range expansion and increased human encounters.

  tickvectorLyme-diseaseparasiteIxodidaepublic-healthzoonosisforest-ecologyclimate-change-expansion

• Stictocephala stimulea

  Stictocephala stimulea is a treehopper species in the family Membracidae, first described by Van Duzee in 1914. Treehoppers in this genus are characterized by their enlarged, often ornate pronotum that extends over the body like a helmet or thorn. The specific epithet 'stimulea' suggests possible resemblance to or association with stinging organisms, though this refers to appearance rather than actual sting. Like other membracids, this species likely feeds on plant phloem sap using piercing-sucking mouthparts.

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