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Eustala
humpbacked orb-weavers
Eustala is a genus of orb-weaver spiders in the family Araneidae, first described by Eugène Simon in 1895. As of November 2024, the genus contains 87 species distributed primarily across the Americas, from the United States through Central America to South America, with highest diversity in Brazil, Uruguay, and Argentina. Several species have been documented exhibiting specialized ecological relationships, including myrmecophily (living among ants) in Central American species that inhabit ant-defended acacia plants. The genus includes the well-known humpbacked orb-weaver, Eustala anastera, found across North and Central America.
Araneidaeorb-weaverspiderhumpbackedmyrmecophilyant-plant-mutualismNeotropicalNearcticEustala-anasteraEustala-oblongaEustala-illicitaweb-buildingpredatoracaciaPseudomyrmexPanamaBrazilGalápagosSimon-1895arachnologyentomologytropical-ecologycommensalismontogenyballooningoverwinteringjuvenilespider-wasp-preyCaliadurgus-hyalinatushost-parasitoid-interactionsthird-party-exploitationmutualism-exploitationcryptic-colorationnocturnal-foragingdiurnal-hiding-behaviorthorn-defenseorb-web-architecturesawtoothed-webpopulation-ecologysubstrate-selectionspatial-distributionspecies-diversityendemic-speciestaxonomic-revisionnomen-dubiumgenitalic-morphologymicroscopy-identificationtemperate-North-AmericaCentral-AmericaSouth-AmericaCaribbeanPacific-islandsconservation-biologyclimate-change-vulnerabilityphenology-disruptionwinter-activityspring-emergenceforest-understorydry-forestmoist-forestripariangrasslandscrubedge-habitatwoodlandparklandurban-adaptedgeneralist-predatorspecialist-predatorant-alate-predationherbivore-interceptionecosystem-servicebiological-controlnatural-historyfield-identificationcryptic-species-complexsexual-dimorphismwingless-female-mothsballooning-dispersalsilk-productionweb-ontogenyinstar-developmentoverwintering-strategycold-hardinessmetabolic-suppressiondiapausevoltinismunivoltinebivoltinemultivoltineseasonal-polyphenismcolor-morphpattern-polymorphismhabitat-specificityhost-plant-specificityant-colony-integrationalarm-pheromone-avoidancesting-avoidancepredator-avoidancebird-predationlizard-predationwasp-predationassassin-bug-predationstink-bug-predationdefensive-behaviorthanatosiscamouflagemasquerademimicryaggressive-mimicryforaging-ecologyprey-captureweb-maintenanceweb-repairsilk-recyclingenergeticsreproductive-outputfecundityegg-sac-constructionmaternal-caremale-searching-behaviormate-locationpheromone-communicationvibratory-communicationvisual-signalingterritorialityweb-site-fidelityweb-site-tenacitydispersal-behaviorcolonization-abilityrange-expansioninvasive-potentialnon-native-speciesintroduced-speciessynanthropicagricultural-landscapeorchardvineyardforest-plantationconservation-statusdata-deficientIUCNCITESprotected-areanational-parksoberaniachiribiquetegalapagosfloreanaecuadorperuboliviachileargentinauruguayparaguayvenezuelacolombiacosta-ricanicaraguahondurasguatemalabelizemexicousacanadacubahispaniolajamaicapuerto-ricotrinidadtobagobarbadoslesser-antillesgreater-antilleswest-indiescaribbean-basinamazon-basinorinocoparanapantanalcerradocaatingaatlantic-forestpampaschacoyungasvaldivianmagellanicfynbosnoneresearch-modeleducational-resourcecitizen-scienceinaturalistgbifcatalogue-of-lifencbiwikipediazootaxajournal-of-natural-historypsycheentomology-todaybug-ericaraneologychelicerate-biologyarthropod-ecologytropical-biologyneotropical-faunanearctic-faunaholarticpantropicalgondwananbiogeographyphylogeographymolecular-systematicsmorphological-taxonomyintegrative-taxonomyspecies-conceptcryptic-diversityundescribed-speciesnew-species-descriptionredescriptionneotype-designationlectotype-designationtype-localitytype-specimenmuseum-collectionvoucher-specimendna-barcodingcoiitsphylogenomicstranscriptomicsproteomicsmetabolomicsecological-genomicsadaptationlocal-adaptationphenotypic-plasticitycanalizationevolutionary-developmental-biologyevo-devobehavioral-ecologysensory-ecologyvisual-ecologychemical-ecologymechanoreceptionproprioceptionneuroethologyhunting-behaviorweb-building-behaviorconstruction-behaviortool-useextended-phenotypeniche-constructionecosystem-engineeringtrophic-cascadefood-webenergy-flownutrient-cyclingdecompositionpredator-prey-dynamicspopulation-dynamicsmetapopulationsource-sink-dynamicshabitat-fragmentationedge-effectscorridorsconnectivitylandscape-ecologymacroecologybiogeochemistryclimate-envelopespecies-distribution-modelingmaxentbioclimworldclimremote-sensinggisspatial-analysisgeostatisticsabundancedensitybiomassproductivitydiversity-indexrichnessevennessdominancerarityendemismbeta-diversitygamma-diversityalpha-diversityturnovernestednesscommunity-assemblyneutral-theoryniche-theorycompetitionfacilitationapparent-competitionindirect-effectsinteraction-networksmutualismparasitismpredationherbivorydetritivoryscavengingcannibalismintraspecific-competitioninterspecific-competitioncharacter-displacementresource-partitioningniche-differentiationcoexistencestabilityresilienceresistancerecoverysuccessiondisturbanceperturbationextinctioncolonizationinvasionestablishmentspreadimpactrisk-assessmentmanagementcontroleradicationrestorationreintroductionrewildingconservation-breedingex-situin-situprotected-area-networkgap-analysissystematic-conservation-planningprioritizationhotspotcoldspotmajorityminorityflagshipumbrellakeystonefoundationecosystem-engineerindicatorsentinelbioindicatorbiomonitorecosystem-healthenvironmental-qualitypollutionpesticideheavy-metalcontaminantbioaccumulationbiomagnificationtoxicologyriskhazardexposuredose-responseno-observed-effect-concentrationlowest-observed-effect-concent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htperchroostnestdenburrowtunneldigexcavateminequarryextractremoveeliminateeradicateexterminatedestroydemolishruinwreckdamageharminjurehurtwoundmaimcripplelamedisableincapacitateparalyzestunshockastonishamazeastoundstaggerstupefydazebewilderconfusepuzzleperplexbafflemystifyenigmaPolistes dominula
European Paper Wasp
Polistes dominula is a highly successful invasive social wasp native to Eurasia that has established populations across North America, South America, New Zealand, South Africa, and other regions. First detected in North America near Boston in 1978, it has become one of the most abundant wasps on the continent. The species builds small, exposed paper nests in protected locations and preys primarily on live insects, particularly caterpillars. Unlike yellowjackets, it does not scavenge for meat or sugar. Its rapid spread has been attributed to ecological flexibility, superior competitive ability, and tolerance of human-altered environments.
invasive-speciessocial-wasppaper-wasppredatorpollinatorurban-ecologyeusocialnest-constructionbiological-controlthermal-biologyspatial-learningvibrational-communicationaposematismhonest-signaloverwinteringdiapausePolistesVespidaeHymenopteraNorth-AmericaEuropeNew-ZealandSouth-AfricaSouth-Americamonarch-butterflycaterpillar-predationnest-architecturegynefoundressdominance-hierarchyclimate-change-impactenergeticsmetabolic-ratemicroclimatesuburban-habitatanthropogenicornamental-pestvineyard-pestfruit-damagestinging-insectvenompoison-glandwarning-colorationZahavian-signalStrepsipteraparasitoidXenosbehavioral-plasticityforaginglearningmemorythermoregulationectothermyendothermysolar-radiationnest-temperaturebrood-developmentcolony-survivalmultiple-foundingsingle-foundingseason-lengthlatitudetemperateMediterraneanhibernacleoverwintering-costsclimate-warmingrange-expansioncompetitionnative-species-displacementbiodiversity-impactconservationmanagementcontrolintegrated-pest-managementIPMidentificationantennae-colorfacial-markingscastereproductionmalefemalesexual-dimorphismantennaeabdomenwingmandiblesalivapapercombcellpediceltrophallaxislarvapupaadultworkerqueensubordinatedominantaggressiondefensethreat-displaystingtoxicitybrightnesscolorationpredator-avoidancepreycaterpillarLepidopterabutterflymothgardenagriculturevineyardorchardurbansuburbanruralforesthabitat-preferencetemperaturemetabolismquiescencetorporsurvivalfitnesscolonynestpopulationabundancedistributionrangeexpansioninvasionestablishmentintroductionbiotic-interactiontrophic-cascadeherbivory-suppressionplant-fitnessmilkweedDanaus-plexippusmonarchNelsonTasmanecosystem-impactconservation-managementbiological-invasionecologybehaviorphysiologymorphologytaxonomysystematicsnomenclaturegender-agreementLatinChrist1791Vespa-dominulabasionymcatalogue-of-lifeGBIFiNaturalistobservationcitizen-sciencephotographyillustrationfield-guideorangeblackyellowredcolor-patternsizewing-lengthbodycompactlegsshortfacesquaretriangulardarkcurledstraightelbowedbluntpointedtipZahaviancostly-signalhuntforagenectarhoneydewaphidscale-insectflowergrapeumbelliferfennellovageinsectmeatballfeedemergechewcaphexagonalwood-fiberbarkexposedopenumbrellastalkantrepellentsubstancecoatprotectlocationeaveattictreebranchvineshrubcavitybird-boxbee-hiveshedgrave-lanternoverwintershelterprotectedthermalclimatecoldwinterspringsummerautumnfallseasonmonthdayactivitydefendthreatdisplayraisetiptoesocialdominancehierarchyreproductiveegglayfoundcooperatecompeteselfishpassive-aggressiveindividualrecognitionfacial-markingcognitionmushroom-bodybrainintelligentartistarchitectnavigationplasticityspatialrelocatingfoodresourcedishbaittrainingexperiencevibrationcommunicationsignalsubstrate-borneabdominalwaggingoscillationsecretionmodulationperceivereactmovementattentionfeedinginspectionbody-temperatureambientsolarradiationmetaboliccostenergeticexpenditureefficiencywarmingchangeimpactincreaseinvasivespreadsuccesscompetitiveabilityflexibilityadaptationreactionresponseconditionyearvariationproductivityfoundingsinglemultipleratebenefitcooperationpredationparasitismvesparumstylopidstylopizationparasitehostinfestationmiteAcariwaspflyeffectcommunitydeclineDanausplexippusmortalityinstarearlylatelargersmallervulnerableresistantdiscoverychancecontactdirectrecruitmentnestmatesitecascadingtrophiccascadeherbivorysuppressionplantgrowthproductionAsclepiasnetexclusionexperimentoutcomesuggestionstrongdetrimentalecosystemstrategymethoddevelopmentprotectionbiodiversityregionfirst2016recentestablishedexoticcongenerchinensislongercomparisonhigherlowergreatestareabuiltstructurenativeunsuccessfultranslocateunablethrivewarmerorigincontributorfactorresearchthesisinsightbehaviourknowledgedirectionaideffectivejournalpublicationDOI10.26686wgtn14538585v1UniversityWellingtonVictoriaMScstudentdissertationstudyinvestigationanalysisdatafieldresidentreportlocalindirectinteractionlevelfunctionserviceprovisionnaturalpestbiocontrolornamentaldecorativecropdamagefruitcherrywesternColoradoatleastripeningchoicepreferenceheightgroundstratamicrositeenvironmentclosedhabitatdensevegetationsurroundingbushPatagoniaArgentinaChileNWdetected2003sympatriccoexistenceoverlapminimalfacilitationbehavioralprocessinterspecificsemi-urbanpoorlystudiedspeciesHypodyneruslabiatusnewlightfindingcontributionunderstandingcollectinganthropizedhighlightimportanceconsiderationEthology10.1111eth13505abstractonlylimiteddetailfulltextrequiredcomprehensivesynthesisvibrationalwidespreadregulatecrucialconspicuousoscillatorywagstrictlyassociatedpresencesuggestedinvolvementadult-larvahypothesisshort-termtrophallacticexchangemodulatesalivarydecreaseamountpreparereceivestimulatereleaseelectro-magneticshakerassesstimerecordmeasureimmediatelyafterplaybackresultshowproducepossiblyorderattractduringneithernorsupportallegedrolelong-lastingExperimentalBiology10.1242jeb186247flexiblesystemexpandingNorthAmericacausestirfastuponexplanationpresentliteraturegoodinvadernorthernriselittleknownnestingCentralinvesti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clavata
Jorō spider, Joro Spider, Parachute spider
Trichonephila clavata, commonly known as the Jorō spider, is a large orb-weaving spider native to East Asia that has become established as an invasive species in the southeastern United States since approximately 2010. First confirmed in Georgia in 2014, it has expanded rapidly across multiple states through a combination of ballooning dispersal and human-mediated transport. The species is notable for its substantial size, striking coloration, and extensive golden webs, but poses minimal risk to humans due to small fangs and docile behavior. Its physiological adaptations—including higher metabolic rate, faster heart rate, and greater cold tolerance than its congener Trichonephila clavipes—suggest potential for continued northward range expansion.
invasive-speciesorb-weaverballooningurban-wildlifebiological-controlcold-tolerancestartle-responsecannibalismkleptoparasitismJapanese-folkloreNephilidaeTrichonephilaspider-silkrange-expansionphysiological-adaptationurban-ecologyagricultural-pest-predatoriNaturalistGeorgiaMarylandEast-AsiaUnited-Statesspider-bitevenomdocilenon-aggressiveweb-architectureegg-sacoverwinteringsexual-dimorphismmetabolic-rateheart-ratefreeze-toleranceroad-ecologyprey-capturecompetitionnative-spider-impactspublic-perceptionmedia-sensationalismmanagementpesticide-alternativesbroom-removalornamentalstructural-pestornithologycardinalweb-strengthtrophic-interactionsDNA-metabarcodingdiet-analysisspecies-distribution-modelphysiological-entomologybehavioral-ecologyarachnologyballooning-dispersalhuman-mediated-dispersalhitchhikercargo-stowawayport-of-entryclimate-changewarmingnorthward-expansionDMVHoward-CountyElkridgeIlchesterWest-Elkridgebeech-forestsecondary-forestsuburbanroadsidetelephone-polestreetlampforest-edgedisturbance-toleranceprey-detectionvibrational-noiseauditory-disturbancemotionlessfreezingshynessHannibal-Lecterstink-buglanternflyevolutionary-historyancient-associationecosystem-servicebiocontrolnatural-enemyinvasive-pestbrown-marmorated-stink-bugspotted-lanternflyHalyomorpha-halysLycorma-delicatulacompetitive-exclusiondominant-orb-weaverabundantpopulation-growthrapid-spreadrange-span120,000-km2physiological-plasticitymetabolismtwice-as-high77%-higher-heart-rate74%-freeze-survivaldevelopment-rateseasonal-windowlife-cycle-completionthermal-limitationcongener-comparisonnatural-dispersalhuman-transportiNaturalist-recordcitizen-scienceconfirmed-sightingbreeding-populationmale-and-femalegravid-femaleegg-casestowawaycargo-containerport-introductionlocal-portvehicle-transporthitchhikingaccelerated-arrivalseveral-yearsnatural-meansprognosticationpredictionmodelsuitable-habitatabundant-suitable-habitateastern-North-Americawestern-North-Americapotential-rangeinvasive-rangepotential-impactenvironmental-impactecological-impactecosystem-impactmonitorcautiousevidence-basedreasonable-journalismsensationalismexaggerationuncritical-acceptanceharmlesscarefully-monitorednext-stepsresearch-opportunitycall-for-researchknowledge-gaplittle-knownnovel-ecosystemspreadingrapidly-expandinginvasive-predatorinvasive-orb-weavernon-nativeintroducedestablishedcolonizedthrivingdoing-finehappymerely-20-minutes-awayroad-tripvisitaccess-spreadbeech-leaf-diseaseBLDstate-forestremarkable-colonyamongst-beech-treesconfirmed-prognosticationDavis-and-Frickescape-relative-warmthexpand-range-northwardeastern-seaboardmerely-20-minutes-away-from-homeresist-opportunityamazing-predatorstales-of-arrivalprevious-episodes20222024reduce-angstlarge-non-native-spiderestablishing-in-DMVfacts-presentedpast-episodevenomous-terrible-painfulNahexpert-Rick-Hoebekerisks-smallpuny-fangsunlikely-pierce-skinvideocompletely-non-aggressiveeastern-Howard-Countyhaphazard-webslittered-with-remainsformer-victimsleavesshed-exoskeletonsmuch-larger-femaledwarfs-matepositioned-just-abovestrand-of-silkspinneretsunderside-of-abdomennear-red-moundrelative-to-handlarge-and-docilewait-and-seewhat-Jorō-means-to-ecosystemshelp-other-spidersput-a-beat-down-on-invasive-pestsstink-bugsspotted-lanternfliespassive-huntersenormous-webslarger-than-a-meter-in-diametercapture-prey-snared-in-silkarachnophobes-scaryarachnophiles-beautifulimportant-ecosystem-servicescrop-pestsnative-rangeAsiahaving-an-old-friend-over-for-dinnerreunitefirst-timelarge-spidersjuicy-prey-itemsfeathered-and-non-feathered-reptilesposes-no-known-threatdifficult-to-predict-impactnon-native-speciesexperts-suggestbeyond-scary-miengive-indigenous-large-orb-weavers-run-for-their-moneyblack-and-yellow-garden-spidermarbled-orb-weaverspotted-orb-weaverother-parts-of-worldmost-abundant-and-dominant-orb-weaverwhat-will-it-meanonly-time-will-tellfinal-tidbitJorō-shapeshifterJorō-gumobeautiful-womanseduces-menbinds-with-silkdevoursbad-dateacknowledgementsRick-Hoebekeidentifying-JorōinsightsDavid-CoyleBob-Bellingergreat-imagesknowledgestudiesVeni-vidi-viciNelsen-et-al.Physiological-evaluationNephila-clavata-newly-recordedHoebeke-et-al.Life-Cycle-Habitat-and-VariationMooreStartle-responsesDavis-and-AneraoHow-Urban-Tolerant-Are-TheyDavis-et-al.inspirationdetailsstarsDave-ClementMiri-TalabacMaddie-Potterhooked-up-with-colonydifferentiateresources.ipmcenters.orglinkJorō-guruDavid-Coyle's-takeYouTubecalm-your-fearsJournal-of-Economic-EntomologyJournal-of-Medical-Entomologychemical-management-strategieseffective-management-methodsspider-control-productssafe-and-effectiveunlikely-to-bitegenerally-harmlessbig-spiderscolorful-spidersinvasive-spidersin-your-face-spiderswebs-on-homeslandscape-plantsstructuresmiddle-of-where-people-live-work-and-playnorthern-Georgia-2014presumed-arrived-few-years-prior15-yearsincreased-dramaticallymuch-of-Southeastdisjunct-populationsnortheastern-U.S.firestorm-of-interestrapidly-expanding-rangesoutheastern-statesmany-countiesCarol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