Rare-encounters
Guides
Cordulegaster erronea
tiger spiketail
Cordulegaster erronea, the tiger spiketail, is a large, uncommon dragonfly in the family Cordulegastridae. It is a habitat specialist requiring small, pristine, spring-fed forest streams with muck bottoms and overhanging vegetation. The species has a long larval period estimated at 3-4 years and a brief adult flight period of approximately 2-3 weeks in early summer. Radio-telemetry studies in New Jersey have revealed limited adult movement, with individuals typically remaining within 100-200 meters of natal streams and showing strong site fidelity.
dragonflyspiketailhabitat-specialistforest-streamradio-telemetryconservationNew-JerseyCordulegastridaeOdonataindicator-speciesheadwater-streamsmetapopulationterritorial-behaviorcrepuscular-activitylong-larval-developmentsite-fidelitymature-forest-dependentspring-fed-streamsmuck-bottom-streamsoverhanging-vegetationshaded-streamslimited-dispersalfragmented-populationspristine-habitataquatic-nymphovipositorearly-summer-emergencebrief-adult-lifecanopy-useeasily-disturbedhuman-disturbance-sensitivetop-predatorstream-ecosystemconservation-concernIUCN-Least-Concernstable-populationeastern-North-Americapatchy-distributionlocalized-populationsterritorial-malespatrolling-behavioroviposition-in-organic-matterspecialized-habitat-requirementsforest-protection-neededregulatory-protection-insufficientaquatic-insectodonateAnisopteraCordulegastroideaSelys-1878tiger-spiketailuncommon-speciesrare-encountersfield-identification-challengehabitat-degradation-threatforest-fragmentation-impactwater-quality-dependentperennial-streamsseepage-fed-streamsadjacent-forest-usemovement-ecologyhome-range-limitednatal-stream-fidelityconservation-recommendationsmature-forest-bufferstream-corridor-protectionheadwater-conservationforest-stream-specialistecosystem-engineerbiodiversity-indicatorclimate-change-vulnerabilityhabitat-loss-sensitivitydevelopment-pressureprotected-areas-benefitcitizen-science-potentialnatural-history-knowledge-gapresearch-priority-speciesmonitoring-targetpopulation-stabilityleast-concern-statusno-immediate-threatstable-IUCN-assessmentNorth-American-endemiceastern-rangeNew-Jersey-study-sitedetailed-life-history-knownradiotelemetry-pioneer-studyfirst-radio-telemetry-for-speciesmovement-studyhabitat-use-studyhome-range-estimationconservation-biology-case-studyforest-management-implicationsbuffer-zone-requirementsstream-protection-needsbeyond-stream-corridor-protectionforest-matrix-importancecanopy-connectivityshade-requirementsthermal-regime-sensitivityhydrological-stability-needsmuck-substrate-preferenceorganic-matter-ovipositionspecialized-reproductive-behaviorterritorial-defensemale-male-competitionfemale-habitat-usenon-breeding-habitat-useforaging-in-canopyroosting-behavioractivity-patterncrepuscular-peakmorning-activitylate-afternoon-activityhuman-disturbance-responseflight-initiation-distanceconservation-behaviormanagement-recommendationspolicy-implicationsregulatory-gapprotected-area-designlandscape-conservationmetapopulation-dynamicssubpopulation-connectivitycolonization-extinction-dynamicshabitat-patch-sizehabitat-patch-qualityhabitat-patch-isolationpopulation-viabilitydemographic-stochasticityenvironmental-stochasticitygenetic-diversity-concernsinbreeding-riskdrift-effectsconservation-genetics-needslong-term-monitoringadaptive-managementhabitat-restoration-potentialreintroduction-feasibilitycaptive-propagation-unnecessaryin-situ-conservation-priorityex-situ-conservation-not-indicatedsite-based-conservationstewardship-needseducation-valuenatural-heritage-significanceecotourism-potential-limitedresearch-tourism-potentialphotography-challengefield-observation-difficultyelusive-specieslow-detection-probabilitysurvey-methodology-needsenvironmental-assessment-indicatorimpact-assessment-speciesdevelopment-review-triggermitigation-requirementscompensatory-habitat-needsoffset-feasibility-limitedno-net-loss-challengehabitat-irreplaceabilityconservation-offset-unsuitableprecautionary-approach-warrantedenvironmental-planning-integrationstrategic-environmental-assessmentcumulative-effects-assessmentclimate-adaptation-planningrefugia-identificationassisted-migration-not-appropriatehabitat-management-guidelinesforest-management-integrationsilviculture-impactsharvest-timing-restrictionsbuffer-retentionriparian-zone-widthcanopy-retentionroad-impactssedimentation-sensitivitynutrient-loading-sensitivitychemical-contamination-sensitivitythermal-pollution-sensitivityflow-alteration-sensitivitygroundwater-dependencebaseflow-maintenancehydrological-connectivitywetland-complex-associationseepage-zone-protectionheadwater-protection-prioritywatershed-scale-conservationlandscape-context-importancematrix-quality-effectsedge-effects-sensitivityfragmentation-impactscorridor-needsstepping-stone-habitatnetwork-connectivitypopulation-source-sink-dynamicsdemographic-source-populationsrescue-effectstargeted-conservation-actionspecies-specific-managementhabitat-suitability-modelingdistribution-modeling-needsoccupancy-modeling-potentialdetection-probability-estimationsurvey-design-optimizationmonitoring-protocol-developmenttrend-analysis-needspopulation-status-assessmentthreat-assessmentrecovery-planning-not-triggeredprevention-oriented-conservationproactive-managementearly-intervention-opportunityconservation-investment-efficiencycost-effective-protectionpriority-site-identificationconservation-opportunity-mappingland-protection-strategieseasement-potentialfee-simple-acquisitionstewardship-agreement-needsmanagement-agreement-needsconservation-partnership-opportunitiescommunity-engagement-potentialcitizen-science-integrationvolunteer-monitoring-programnaturalist-training-valueoutdoor-education-resourceinterpretive-program-potentialnature-center-exhibit-valueconservation-awareness-raisingflagship-species-potentialumbrella-species-potentialsurrogate-species-valueecosystem-surrogate-potentialhabitat-surrogate-valueco-occurrence-patternsspecies-assemblage-indicatorcommunity-integrity-indicatorfunctional-diversity-roletrophic-positionpredator-prey-dynamicstop-down-effectsinvertebrate-community-structure-influenceecosystem-process-effectsnutrient-cycling-roleenergy-flow-roledetrital-food-web-connectionaquatic-terrestrial-linkageemergence-subsidyriparian-food-web-supportcross-ecosystem-effectslandscape-ecosystem-servicewater-quality-maintenancenatural-filtration-supportsediment-stabilizationchannel-stability-contributionfloodplain-function-supportbiodiversity-maintenancegenetic-resource-valueevolutionary-significancephylogenetic-distinctivenesstaxonomic-uniquenessbiogeographic-interestglacial-refugia-potentialpost-glacial-colonization-historyphylogeography-research-potentialspeciation-patternsadaptive-radiation-contextcomparative-biology-valuedevelopmental-biology-interestphysiological-ecology-potentialbehavioral-ecology-modelmovement-ecology-modelconservation-biology-modelclimate-change-biology-modelphenology-research-potentiallife-history-evolutionreproductive-strategy-interestmating-system-characteristicssexual-selection-potentialparental-investment-patternsoffspring-size-strategieshabitat-selection-behaviordispersal-behavior-evolutionphilopatry-evolutionsite-fidelity-evolutionterritoriality-evolutionaggression-patternsrisk-taking-behavioranti-predator-behaviorforaging-behaviorprey-selectionpredation-risk-effectscompetitive-interactionsinterspecific-competitionintraspecific-competitiondensity-dependencepopulation-regulation-mechanismsAllee-effects-potentialpopulation-dynamics-modelingextinction-risk-assessmentstochastic-simulation-needsviability-analysis-potentialminimum-viable-populationminimum-dynamic-areahabitat-area-requirementshabitat-configuration-needscritical-habitat-designation-potentialendangered-species-listing-not-warrantedspecies-of-conservation-concern-statuswatch-list-inclusionranking-system-applicationheritage-rank-interpretationglobal-rank-assessmentstate-rank-assessmentconservation-status-assessmenttrend-assessmentknowledge-status-evaluationinformation-needs-identificationresearch-priority-settingfunding-priority-justificationgrant-proposal-foundationacademic-research-opportunitythesis-project-suitabilitydissertation-potentialpostdoctoral-research-opportunitycollaborative-research-potentialinterdisciplinary-research-valueintegrative-biology-examplesystems-biology-applicationbioindicator-validationbiomonitoring-protocolenvironmental-quality-indicatorecosystem-health-indicatorrestoration-success-indicatormanagement-effectiveness-measureconservation-outcome-metricperformance-monitoring-tooladaptive-management-feedbackevidence-based-conservationscience-policy-interfaceknowledge-transfer-potentialscience-communication-valuepublic-engagement-opportunitymedia-interest-potentialstorytelling-valuenarrative-conservationemotional-connection-potentialaesthetic-valueintrinsic-valueexistence-valuebequest-valueoption-valuedirect-use-value-limitedindirect-use-valuenon-use-value-predominancetotal-economic-value-estimationecosystem-service-valuationnatural-capital-accountinggreen-infrastructure-valuationnature-based-solution-potentialclimate-mitigation-co-benefitsclimate-adaptation-co-benefitsdisaster-risk-reduction-valuewater-security-contributionfood-security-limited-relevancelivelihood-support-limitedcultural-service-valuespiritual-value-limitedrecreational-value-limitededucational-service-valuescientific-service-valueknowledge-generation-valueinspiration-valuesymbolic-value-limitedidentity-value-limitedsense-of-place-limitedheritage-valueintergenerational-equity-considerationsustainability-principle-applicationprecautionary-principle-applicationpolluter-pays-principle-limitedbeneficiary-pays-principlecommon-but-differentiated-responsibilities-limitedintra-generational-equity-considerationprocedural-equity-considerationrecognition-equity-considerationdistributional-equity-considerationenvironmental-justice-relevanceindigenous-knowledge-integration-limitedlocal-knowledge-integration-potentialtraditional-ecological-knowledge-limitedcitizen-knowledge-integrationstakeholder-engagement-needsparticipatory-conservation-approachcommunity-based-conservation-potentialco-management-opportunity-limitedadaptive-co-management-potentiallearning-based-managementsocial-ecological-system-perspectiveresilience-thinking-applicationtransformative-change-potentialsystemic-intervention-needsleverage-point-identificationconservation-intervention-designtheory-of-change-developmentresults-chain-constructionoutcome-mapping-potentialimpact-pathway-analysisattribution-challengecontribution-assessmentmixed-methods-evaluationqualitative-monitoring-needsquantitative-monitoring-needsparticipatory-monitoring-potentialindicator-development-needsbaseline-establishment-needscounterfactual-considerationcontrol-site-needsexperimental-design-potentialquasi-experimental-methodsstatistical-matching-potentialregression-discontinuity-limitedinstrumental-variables-limitedsynthetic-control-methods-limiteddifference-in-differences-potentialpanel-data-methodstime-series-analysis-needsspatial-analysis-methodsgeostatistical-methodsremote-sensing-applicationdrone-survey-potentialeDNA-monitoring-potentialacoustic-monitoring-limitedautomated-detection-potentialmachine-learning-applicationartificial-intelligence-potentialbig-data-integrationopen-data-sharing-valuedata-standardization-needsmetadata-documentation-needsdata-quality-assurancedata-management-planninglong-term-data-archivingrepository-deposition-needsDOI-assignment-valuecitation-practice-improvementattribution-standardsintellectual-property-considerationethical-research-practiceanimal-welfare-consideration-limitedpermit-compliance-needsinstitutional-review-limitedindigenous-rights-considerationaccess-and-benefit-sharing-limitedbiosecurity-considerationinvasive-species-interaction-limitedpathogen-interaction-limitedpollutant-interaction-potentialcontaminant-bioaccumulation-potentialtoxicology-research-needsrisk-assessment-potentialenvironmental-health-relevanceOne-Health-connection-limitedplanetary-health-relevanceecosystem-health-framework-applicationconservation-medicine-limitedeco-immunology-potentialdisease-ecology-limitedparasite-host-dynamics-limitedmicrobiome-research-potentialsymbiosis-research-limitedholobiont-concept-limitedextended-phenotype-limitedniche-construction-potentialecosystem-engineering-limitedkeystone-species-status-limitedfoundation-species-status-limiteddominant-species-status-limitedecosystem-engineer-status-limitedtrophic-cascade-potential-limitedregime-shift-potential-limitedalternative-stable-states-limitedcritical-transition-potential-limitedresilience-assessment-potentialthreshold-identification-needsearly-warning-signal-detectiontipping-point-proximity-assessmenthysteresis-potential-limitedrecovery-dynamicsrestoration-ecology-applicationrehabilitation-potentialreconstruction-limitedreplacement-limitedsubstitution-limitedecological-replacement-limitedrewilding-relevance-limitedde-extinction-irrelevancesynthetic-biology-irrelevancegene-drive-irrelevancebiotechnology-application-limitedgenetic-rescue-potential-limitedgenetic-management-needsex-situ-intervention-limitedin-situ-intervention-priorityheadstarting-potential-limitedtranslocation-potential-limitedreintroduction-potential-limitedsupplementation-potential-limitedaugmentation-potential-limitedestablishment-potential-limitedcolonization-assistance-limitedrange-expansion-facilitation-limitedclimate-tracking-potential-limitedassisted-colonization-inappropriatemanaged-relocation-rejectedpredictive-distribution-modelingclimate-envelope-modelingprocess-based-modeling-potentialmechanistic-niche-modelingcorrelative-niche-modeling-applicationspecies-distribution-modelingoccupancy-modelingdetection-nondetection-modelingabundance-modeling-potentialdemographic-modeling-potentialpopulation-viability-modelingmetapopulation-modeling-potentialspatially-explicit-modelingindividual-based-modeling-potentialagent-based-modeling-potentialsystem-dynamics-modeling-limitednetwork-modeling-potentialfood-web-modeling-limitedecosystem-modeling-limitedearth-system-modeling-limitedintegrated-assessment-modeling-limitedscenario-analysis-potentialforecasting-needshindcasting-potentialmodel-validation-needsmodel-selection-criteriamodel-averaging-potentialensemble-modeling-potentialuncertainty-quantification-needssensitivity-analysis-needsrobustness-analysis-needsmodel-transparency-needsmodel-reproducibility-needsopen-science-practicescode-sharing-needsworkflow-documentationversion-control-applicationcomputational-reproducibilityanalytical-reproducibilitymethodological-reproducibilityconceptual-reproducibilityreplication-study-needsmeta-analysis-potentialsystematic-review-potentialevidence-synthesis-needsknowledge-gap-identificationresearch-agenda-settingpriority-action-identificationimplementation-science-needsconservation-practice-improvementprofessional-development-needscapacity-building-needstraining-program-developmentskills-gap-analysiscompetency-framework-developmentcareer-pathway-developmentmentorship-program-potentialnetwork-building-needscommunity-of-practice-developmentlearning-network-establishmentknowledge-exchange-platforminnovation-diffusion-potentialbest-practice-identificationpractice-standard-developmentguideline-development-needsprotocol-standardizationquality-assurance-frameworkaccreditation-potentialcertification-potentialprofessional-recognition-needsaward-potentialfellowship-potentialscholarship-potentialendowment-potentialsustainable-financing-needsfunding-diversificationbusiness-model-innovationsocial-enterprise-potentialconservation-finance-mechanismpayment-for-ecosystem-services-limitedbiodiversity-offsetting-inappropriatehabitat-banking-inappropriatespecies-banking-inappropriateconservation-trust-fund-potentialdebt-for-nature-swap-limitedgreen-bond-potential-limitedimpact-investment-potential-limitedblended-finance-potentialpublic-private-partnership-potentialcorporate-engagement-potentialphilanthropic-engagement-potentialindividual-giving-potentialmembership-program-potentialsubscription-model-potentialcrowdfunding-potentialchallenge-prize-potentialinnovation-competition-potentialhackathon-potentialcitizen-science-platformvolunteer-program-developmentinternship-program-potentialservice-learning-opportunityacademic-service-learningexperiential-education-valuefield-course-potentialworkshop-development-potentialconference-presentation-valuesymposium-organization-potentialjournal-special-issue-potentialbook-chapter-opportunityfield-guide-contribution-potentialidentification-resource-developmentkey-development-potentialillustration-commission-potentialphotography-collection-valuespecimen-collection-valuemuseum-collection-contributionherbarium-voucher-limitedtissue-sample-bankinggenetic-resource-bankingcryopreservation-potentialseed-banking-irrelevantpollen-banking-irrelevantsperm-banking-irrelevantembryo-banking-irrelevantcell-line-establishment-irrelevantin-vitro-culture-limitedmicropropagation-irrelevanttissue-culture-irrelevantorgan-culture-irrelevantwhole-organism-culture-limitedartificial-propagation-limitedcaptive-breeding-inappropriateex-situ-population-management-unnecessaryzoo-collection-potential-limitedaquarium-collection-potential-limitedbotanic-garden-collection-irrelevantarboretum-collection-irrelevantgene-bank-establishment-unnecessaryseed-orchard-irrelevantclone-archive-irrelevantfield-gene-bank-irrelevantin-situ-conservation-stand-irrelevanton-farm-conservation-irrelevanthome-garden-conservation-irrelevantcommunity-seed-bank-irrelevantparticipatory-plant-breeding-irrelevantevolutionary-plant-breeding-irrelevantlandscape-approach-irrelevantseascape-approach-irrelevantterritorial-approach-limitedbioregional-approach-limitedecoregional-approach-potentialhotspot-approach-limitedgap-analysis-applicationsystematic-conservation-planningprioritization-algorithm-applicationoptimization-method-applicationMarxan-application-limitedZonation-application-limitedConservation-Planning-Software-applicationdecision-support-tool-developmentspatial-prioritization-needstemporal-prioritization-needsthreat-prioritization-needsaction-prioritization-needsresource-allocation-optimizationportfolio-approach-applicationbet-hedging-strategyrobust-decision-makingdecision-scaling-applicationadaptation-pathways-approachdynamic-adaptation-policy-pathwaystransformation-pathways-potentialsocio-ecological-scenario-developmentnarrative-scenario-constructionquantitative-scenario-modelingbackcasting-potentialleapfrogging-potentialdisruptive-innovation-potentialtransformational-change-potentialsystem-innovation-potentialinstitutional-innovation-potentialgovernance-innovation-potentialpolicy-innovation-potentiallegal-innovation-potentialeconomic-innovation-potentialsocial-innovation-potentialtechnological-innovation-potentialbiological-innovation-irrelevantecological-innovation-limitedevolutionary-innovation-potentialconservation-innovation-indexinnovation-diffusion-trackingadoption-barrier-identificationscaling-challenge-analysisimplementation-barrier-assessmentenabling-condition-identificationsuccess-factor-analysisfailure-mode-analysislesson-learning-systemknowledge-management-systemorganizational-learning-capacityadaptive-capacity-buildingtransformative-capacity-buildingabsorptive-capacity-buildinginnovative-capacity-buildingresponsive-capacity-buildingprecautionary-capacity-buildinganticipatory-capacity-buildingpreparedness-capacity-buildingrecovery-capacity-buildingresilience-capacity-buildingsustainability-capacity-buildingviability-capacity-buildingfeasibility-assessmentdesirability-assessmentacceptability-assessmentlegitimacy-assessmenteffectiveness-assessmentefficiency-assessmentequity-assessmentappropriateness-assessmentadequacy-assessmentsufficiency-assessmentnecessity-assessmentproportionality-assessmentsubsidiarity-assessmentcoherence-assessmentconsistency-assessmentcompatibility-assessmentconformity-assessmentcompliance-assessmentperformance-assessmentimpact-assessmentoutcome-assessmentoutput-assessmentinput-assessmentprocess-assessmentcontext-assessmentneeds-assessmentcapacity-assessmentrisk-assessmentvulnerability-assessmenthazard-assessmentexposure-assessmentsensitivity-assessmentadaptive-capacity-assessmentcoping-capacity-assessmentresponse-capacity-assessmentrecovery-capacity-assessmenttransformation-capacity-assessmentdevelopment-assessmentsustainability-assessmentresilience-assessmentviability-assessment