Boreal

Guides

Rhyacia quadrangula
Quadrangle Dart
Rhyacia quadrangula, commonly known as the Quadrangle Dart, is a noctuid moth with a transcontinental distribution spanning the Arctic and boreal regions of Eurasia and North America. The species exhibits a disjunct range, occurring in Iceland, Greenland, central Asia including the Pamir Mountains, and across northern Canada and the northwestern United States. Adults are active during late summer, with flight records from July through September.
noctuid-moth transarctic-distribution grass-feeder boreal tundra
Rhysodromus alascensis
Rhysodromus alascensis is a species of running crab spider in the family Philodromidae. It has a broad transcontinental distribution spanning northern North America and Eurasia, including Alaska, Siberia, Kazakhstan, and China. The species was originally described as Philodromus alascensis by Keyserling in 1884 and later transferred to the genus Rhysodromus. Like other philodromids, it is an active hunter that does not build webs to capture prey.
spider running-crab-spider Philodromidae Araneae Arachnida boreal Holarctic
Salebriaria borealis
Salebriaria borealis is a species of moth in the family Pyralidae. The genus Salebriaria belongs to the snout moth family, a diverse group of small to medium-sized moths characterized by their elongated labial palps that form a snout-like projection. Very little specific biological information has been published for this particular species. The species epithet 'borealis' suggests a northern distribution pattern.
Pyralidae moth Lepidoptera North-America boreal
Sciophila
fungus gnat
Sciophila is a genus of fungus gnats in the family Mycetophilidae, established by Meigen in 1818. These small flies are characterized by their association with fungal habitats and shadowy environments. The genus includes both widespread Palaearctic species and Neotropical species that have been intercepted as glasshouse contaminants. Species such as Sciophila holopaineni from Finnish Lapland and S. fractinervis from the Neotropics demonstrate the genus's broad geographic range and ecological diversity.
fungus-gnat Mycetophilidae Diptera saprophagous boreal glasshouse-pest Finland Neotropics fungal-feeder web-building-larvae
Scopula frigidaria
Frigid Wave
Scopula frigidaria is a small geometrid moth distributed across boreal regions of northern Eurasia and North America. Adults have a wingspan of 21–23 mm and are active from late May through June. The species exhibits a univoltine life cycle with larvae feeding exclusively on bilberry (Vaccinium myrtillus). Larvae overwinter in the larval stage, with development spanning from July through May of the following year. Two subspecies are recognized: the nominate form and S. f. schoyeni restricted to the Kola Peninsula and Fennoscandia.
boreal geometrid moth Vaccinium univoltine overwintering-larva Holarctic
Scopula sentinaria
Scopula sentinaria is a geometrid moth with a transcontinental distribution spanning northern North America and northern Eurasia. The species occupies dry shrubby clearings and edge habitats across boreal and subarctic regions. Adults are active during early summer in a single annual generation, with larvae developing on Polygonum aviculare. The species is notable for its broad geographic range and adaptation to open, disturbed habitats at high latitudes.
geometridae moth boreal univoltine polygonum shrubland edge-habitat
Semioscopis aurorella
Aurora Flatbody Moth
Semioscopis aurorella, the aurora flatbody moth, is a small moth in the family Depressariidae. It was described by Harrison Gray Dyar Jr. in 1902. The species occurs in boreal and temperate regions of North America, with a range extending from north-central Alberta to south-eastern Ontario in Canada, and south into the north-central United States. Forewing length ranges from 11–14 mm.
moth Depressariidae North-America boreal temperate-forest
Sericoda
Sericoda is a genus of harpaline ground beetles native to the Holarctic region, with apparent North American origin. These beetles are pyrophilous, meaning they are strongly attracted to burned areas following forest fires. They are generally smaller than related genera such as Agonum. Two species, Sericoda quadripunctata and S. bembidioides, have been extensively studied in boreal forests of Alberta, Canada, where they serve as hosts for phoretic mites of the genus Antennoseius.
pyrophilous fire-adapted boreal phoresy bioindicator post-fire-succession salvage-logging Carabidae Platyninae Holarctic
Sericomyia
Pond Flies
Sericomyia is a genus of large hoverflies in the family Syrphidae, commonly known as pond flies. Species within this genus are notable bee mimics, displaying both short-pile and long-pile coloration patterns. The genus is widespread across boreal forests of the Holarctic region, extending southward at higher elevations into the Oriental and Neotropical regions. Larvae are of the rat-tailed maggot type, specialized for aquatic life in oxygen-poor environments.
hoverfly bee-mimic Batesian-mimicry rat-tailed-maggot bog-habitat boreal Holarctic pollinator aquatic-larva Syrphidae
Serropalpus substriatus
Striated False Darkling Beetle
Serropalpus substriatus is a species of false darkling beetle in the family Melandryidae. The species is known from coniferous forest habitats, with documented larval development in giant sequoia (Sequoiadendron giganteum). It occurs across much of Canada, with records from Alberta, British Columbia, Manitoba, New Brunswick, and Labrador. The species is rarely encountered, with limited biological data available.
Melandryidae false-darkling-beetle conifer-specialist Serropalpus boreal Sequoiadendron
Simplocaria metallica
Metallic Pill Beetle
Simplocaria metallica is a pill beetle in the family Byrrhidae, distributed across Europe, Northern Asia (excluding China), and North America. It is an obligate herbivore specialized on mosses, particularly species in the genera Pohlia, Ceratodon, and Bryum. The species has been studied in forest habitats of northern Alberta, Canada, where it occurs alongside other pill beetle species.
pill-beetle moss-feeding herbivore forest-dwelling boreal
Somatochlora
Striped Emeralds, Striped Emerald Dragonflies
Somatochlora is a genus of 42 described species of medium-sized dragonflies in the family Corduliidae, distributed across the Northern Hemisphere in Europe, Asia, and North America. Members are characterized by dark bodies with metallic green lustre, brilliant green eyes, and often yellow thoracic or abdominal markings. Species-level identification is challenging and requires examination of male cerci or female subgenital plates. Many species are habitat specialists with restricted distributions, particularly associated with boreal and montane wetland systems.
dragonfly emerald boreal wetland stream bog fen
Somatochlora brevicincta
Quebec Emerald, Robert's Emerald
Somatochlora brevicincta is a rare dragonfly in the family Corduliidae, first described by Canadian entomologist Adrien Robert in 1954. It belongs to the 'ringed' group of emeralds, distinguished by faint whitish rings on the abdomen. The species is among the rarest Odonata in Canada, with a transcontinental distribution across boreal and subarctic regions. It is classified as vulnerable to critically imperiled across most of its range.
dragonfly emerald bog-specialist peatland rare conservation-concern subarctic boreal
Sonronius binotatus
Sonronius binotatus is a species of leafhopper in the family Cicadellidae, subfamily Deltocephalinae, and tribe Macrostelini. It was described by Sahlberg in 1871 and occurs across boreal and montane regions of North America and Eurasia. The species is rarely recorded, with minimal observational data available.
leafhopper Cicadellidae Macrostelini boreal rarely-recorded
Stephanopachys
horned powder-post beetles
Stephanopachys is a genus of horned powder-post beetles (family Bostrichidae) comprising more than 20 described species. The genus was established by Waterhouse in 1888. Members are saproxylic beetles associated with wood decomposition, with at least one species (S. linearis) exhibiting pyrophilous behavior and conservation concern in Europe.
Bostrichidae powder-post-beetles saproxylic conservation pyrophilous Europe boreal alpine
Sthereus quadrituberculatus
Sthereus quadrituberculatus is a true weevil in the family Curculionidae, first described by Motschulsky in 1845. The species occurs in northern North America, with confirmed records from Alaska, British Columbia, and Saskatchewan. It belongs to a genus of weevils whose members are generally associated with coniferous forests. The specific epithet 'quadrituberculatus' refers to four tubercles, likely describing a diagnostic morphological feature of the species.
weevil Curculionidae North-America boreal
Sunira verberata
Battered Sallow
Sunira verberata is a noctuid moth of western North America, previously classified under Agrochola. Adults are active in late summer and fall. The species occupies montane and boreal forest habitats across a broad latitudinal range from Alaska to the southwestern United States.
Noctuidae western-North-America boreal montane fall-flying
Sympistis dinalda
Netted Sallow
Sympistis dinalda is a noctuid moth native to boreal and subboreal Canada. It was described in 1908 and underwent taxonomic revision in 2008, when it was elevated from subspecies status and transferred to the genus Sympistis. The species has a wingspan of 30–35 mm. It is known by the common name Netted Sallow.
boreal subboreal Canada noctuid taxonomic-revision
Sympistis lapponica
Sympistis lapponica is a small noctuid moth first described by Thunberg in 1791. It occurs across boreal and arctic regions of the Northern Hemisphere, including Fennoscandia, northern Russia, Asia, and northern North America. The species is notable for its two-year life cycle, overwintering first as an egg and again as a pupa.
arctic boreal noctuid two-year-life-cycle Vaccinium-feeder Betula-feeder Thunberg-1791
Syneta
Syneta is a genus of leaf beetles comprising approximately 11 described species. It is the sole genus in the subfamily Synetinae, a small lineage within the family Chrysomelidae. The genus has an exclusively Holarctic distribution, occurring in northern regions of North America, Europe, and Asia. The type species, Syneta betulae, was described by Fabricius in 1792.
leaf-beetle Holarctic boreal Chrysomelidae
Syngrapha epigaea
Epigaea Looper Moth, Pirate Looper Moth, Narrow Silver Y
Syngrapha epigaea is a noctuid moth species first described by Augustus Radcliffe Grote in 1874. It occurs across boreal and temperate regions of North America, with adults active during mid-summer. The species is univoltine, producing one generation per year. Larvae feed on specific ericaceous host plants, with documented associations to Vaccinium angustifolium (lowbush blueberry) and Kalmia angustifolia (sheep laurel).
Noctuidae Plusiinae Looper-moth Ericaceae-feeder Boreal Transcontinental Univoltine North-America
Syngrapha interrogationis
Scarce Silver Y Moth
Syngrapha interrogationis, commonly known as the scarce silver Y, is a noctuid moth distributed across northern regions of the Northern Hemisphere. The species ranges from Alaska and Canada through Iceland, Europe, and Siberia to Northeast Asia including Japan. Adults display the characteristic silver Y-shaped mark on the forewings typical of the Plusiinae subfamily. The species is considered scarce or locally distributed in parts of its European range.
Lepidoptera Noctuidae Plusiinae moth boreal circumboreal silver-Y scarce northern-hemisphere Vaccinium-feeder ericaceous montane subarctic
Syngrapha montana
Labrador Tea Looper Moth, Labrador tea looper
Syngrapha montana, commonly known as the Labrador tea looper moth, is a noctuid moth distributed across boreal North America. The species exhibits a transcontinental Canadian range with southern extensions into the northern United States. Its life cycle is univoltine, with one generation annually. The larval stage is specialized, feeding exclusively on Ledum groenlandicum (Labrador tea), a wetland ericaceous shrub.
moth Noctuidae Plusiinae boreal wetland specialist-herbivore univoltine Canada Labrador-tea Ledum-groenlandicum
Syngrapha octoscripta
Figure-eight Looper Moth, Dusky Silver Y
Syngrapha octoscripta is a noctuid moth native to North America, commonly known as the figure-eight looper moth or dusky silver Y. Adults are medium-sized with a wingspan of 34–36 mm and display the characteristic silver Y-shaped marking typical of the genus. The species has a single annual generation, with adults active during mid-summer. Larvae are specialized feeders on Vaccinium species.
Noctuidae Plusiinae North-America boreal Vaccinium univoltine silver-Y-moth
Syngrapha selecta
Chosen Looper Moth
Syngrapha selecta, the chosen looper moth, is a North American noctuid moth described by Francis Walker in 1858. It has a wingspan of approximately 38 mm and produces one generation annually. The species occupies a broad northern range across boreal and subarctic regions.
noctuidae plusiinae looper-moth boreal univoltine north-america
Syngrapha u-aureum
golden looper moth
Syngrapha u-aureum, known as the golden looper moth, is a noctuid moth distributed across boreal and subarctic regions of eastern North America. The species has one generation annually. Larvae feed on Vaccinium species, including blueberries and related shrubs. Two subspecies are recognized, differing in geographic distribution and host associations.
Noctuidae Plusiinae Lepidoptera North-America boreal univoltine Vaccinium
Tachyerges ephippiatus
Tachyerges ephippiatus is a species of weevil in the family Curculionidae. It is distributed across central and eastern Canada, with records from Alberta, British Columbia, Manitoba, New Brunswick, and Nova Scotia. The genus Tachyerges includes species associated with conifers, though specific ecological details for this species remain limited in published literature.
weevil curculionidae boreal conifer-associated canadian-endemic
Tetartopeus niger
Tetartopeus niger is a species of rove beetle in the family Staphylinidae, first described by J.L. LeConte in 1863. It belongs to the tribe Lathrobiini within the subfamily Paederinae. The species has a broad trans-Pacific distribution, occurring across northern North America and East Asia.
rove-beetle Staphylinidae Paederinae Lathrobiini trans-Pacific-distribution boreal temperate
Thanatophilus lapponicus
Northern Carrion Beetle, Silky Carrion Beetle
Thanatophilus lapponicus, the Northern Carrion Beetle, is a holarctic species in the family Silphidae. It is one of the most widespread carrion beetles in the northern hemisphere, occurring across boreal and temperate regions of Europe, Asia, and North America. The species is associated with decomposing animal remains, particularly in cooler climates where its densely hairy body may provide thermal insulation. Adults are active from early spring through autumn and are frequently encountered in forensic entomology contexts.
carrion-beetle Silphidae forensic-entomology decomposition holarctic boreal scavenger
Tolype laricis
Larch Tolype Moth, Larch Tolype, Larch Lappet Moth
Tolype laricis is a moth in the family Lasiocampidae, commonly known as the larch tolype or larch lappet moth. The species is native to eastern North America and has been recorded in parts of Canada including Alberta, Manitoba, and Saskatchewan, as well as the northeastern United States. It was first described by Fitch in 1856 under the basionym Planosa laricis. The species is assigned MONA/Hodges number 7673.
lappet-moth boreal conifer-associated
Tortopus
Tortopus is a genus of burrowing mayflies in the family Polymitarcyidae, restricted to six species based on cladistic revision: T. igaranus, T. circumfluus, T. harrisi, T. zottai, T. bellus, and T. arenales. The genus is characterized by distinctive morphological synapomorphies including female parastyli receptors with long anterior furrows, entirely flattened penes, and nymphs bearing two subapical tubercles on mandibular tusks. Nymphs construct U-shaped tunnels in clay banks, a behavior that renders them difficult to sample with standard aquatic survey methods.
Ephemeroptera Polymitarcyidae burrowing-mayflies Neotropical clay-bank-habitat U-shaped-tunnels mandibular-tusks Tortopsis Campsurinae Panamerican-distribution cladistic-revision synapomorphy parastyli-receptors flattened-penes furcasternal-protuberances subapical-tubercles limnological-sampling-bias nymph-morphology adult-morphology type-species-T.-igaranus new-species-T.-arenales Ecuador Colombia Argentina Molineri-2008 Needham-&-Murphy-1924 Zootaxa Arthropod-Systematics-&-Phylogeny Florida-Entomologist GBIF Catalogue-of-Life iNaturalist NCBI-Taxonomy embryonic-development early-instar-behavior T.-harrisi T.-bellus T.-circumfluus T.-zottai T.-igaranus T.-incertus T.-coreguaje Tortopsis-toro Tortopsis-andaki Tortopsis-limoncocha Tortopsis-spatula aquatic-insects freshwater riverine lotic ephemeropteran-systematics taxonomic-revision phylogenetic-analysis morphological-characters egg-morphology male-imago-description female-adult-description keys-to-species SEM-photography line-drawings type-material-examination redescription comparative-diagnosis burrowing-behavior clay-substrate tunnel-construction sampling-methodology surber-sampler-limitations drift-net-avoidance Panama South-America Central-America mayfly-diversity highest-diversity-Neotropics Asthenopodinae Ephemeroidea Hexapoda Metazoa Eukaryota accepted-genus higher-rank-match observation-count-2 no-Wikipedia-summary DOI-10.11646/zootaxa.2481.1.1 DOI-10.11646/zootaxa.2436.1.4 DOI-10.3897/asp.79.e62735 DOI-10.2307/3493493 Scott-et-al.-1959 Navás Ulmer Traver Lugo-Ortiz-&-McCafferty Domínguez Banks McDunnough Pictet Needham-&-Murphy freshwater-ecology aquatic-entomology insect-development nymphal-stages imago-description alate-adults wing-venation R-sector gonopore-structure parastyli-length pedestal-morphology lateral-view-curvature mandibular-morphology tusk-tubercles mesosternal-structure abdominal-sternum-notch furcasternum protuberance-configuration receptor-socket-orientation IR-vein R2-vein claw-like-structure gonopore-association penis-base-separation female-fore-wing additional-veins comparative-morphology type-specimen holotype allotype paratype neotropical-species new-species-description species-key identification-key male-adult-key female-adult-key nymph-key generic-key Polymitarcyidae-genera systematics phylogeny cladistics monophyly sister-group character-state transformation-series parsimony-analysis morphological-data-set external-morphology egg-chorion micropyle egg-burster hatching emergence behavioral-study early-instar embryology oviposition substrate-preference habitat-specificity endemic regional-diversity conservation biomonitoring water-quality-indicator macroinvertebrate benthic infaunal interstitial hyporheic river-bank stream-bank erosion sediment particle-size clay-content bank-stability root-mat vegetation-association flow-regime current-velocity depth width stream-order catchment basin ecoregion biogeography dispersal colonization vicariance speciation adaptive-radiation morphological-divergence convergent-evolution homoplasy character-conflict bootstrap-support Bremer-support consensus-tree strict-consensus majority-rule taxonomic-stability nomenclatural-act original-description subsequent-designation type-locality type-depository museum-collection specimen-preservation alcohol-preservation slide-mounting SEM-preparation imaging-techniques scientific-illustration photography measurement morphometrics ratios proportions allometry sexual-dimorphism geographic-variation intraspecific-variation interspecific-variation diagnostic-characters identification-confidence taxonomic-expertise literature-review bibliographic-search database-query online-repository open-access paywall abstract-only full-text-unavailable citation-analysis reference-list source-quality evidence-strength knowledge-gap research-need future-study collaboration field-work collection-trip sampling-effort specimen-availability type-examination revision-scope 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reproductive-isolation prezygotic-isolation postzygotic-isolation mechanical-isolation temporal-isolation habitat-isolation behavioral-isolation gametic-isolation zygotic-mortality hybrid-inviability hybrid-sterility hybrid-breakdown reinforcement character-displacement ecological-speciation allopatric-speciation sympatric-speciation parapatric-speciation peripatric-speciation centrifugal-speciation divergence-with-gene-flow speciation-continuum anagenesis cladogenesis budding-speciation branching-speciation phyletic-gradualism punctuated-equilibrium stasis trend progression orthogenesis aristogenesis mosaic-evolution co-evolution arms-race Red-Queen-hypothesis evolutionary-stable-strategy frequency-dependent-selection density-dependent-selection r-selection K-selection bet-hedging iteroparity semelparity ploidy-level chromosome-number karyotype genome-size transposable-element gene-duplication neofunctionalization subfunctionalization pseudogene regulatory-evolution cis-regulatory trans-regulatory enhancer promoter silencer insulator transcription-factor signaling-pathway developmental-pathway gene-network epigenetic-modification DNA-methylation histone-modification chromatin-remodeling genomic-imprinting parental-effect maternal-effect paternal-effect cytoplasmic-inheritance mitochondrial-DNA chloroplast-DNA endosymbiont Wolbachia Rickettsia Spiroplasma Cardinium Arsenophonus Hamiltonella Regiella Serratia Buchnera Carsonella Portiera primary-endosymbiont secondary-endosymbiont facultative-symbiont obligate-symbiont mutualistic-symbiont parasitic-symbiont commensal-symbiont pathogen vector disease-transmission zoonosis emerging-infectious-disease biosecurity quarantine eradication control management conservation-biology restoration-ecology habitat-restoration river-restoration stream-restoration floodplain-restoration riparian-restoration wetland-restoration ecosystem-restoration passive-restoration active-restoration assisted-recovery managed-relocation assisted-colonization ex-situ-conservation in-situ-conservation protected-area national-park nature-reserve wildlife-refuge biosphere-reserve world-heritage-site ramsar-site important-bird-area key-biodiversity-area Alliance-for-Zero-Extinction EDGE-species evolutionarily-distinct globally-endangered conservation-prioritization systematic-conservation-planning Marxan Zonation conservation-opportunity conservation-cost conservation-benefit trade-off socioeconomic-factor stakeholder-engagement community-based-conservation adaptive-management monitoring-program long-term-study citizen-science public-participation environmental-education outreach science-communication knowledge-transfer capacity-building institutional-strengthening policy-development legislation regulation enforcement compliance incentive payment-for-ecosystem-services carbon-credit biodiversity-offset mitigation-banking conservation-easement land-trust private-land-conservation conservation-covenant stewardship sustainable-use sustainable-management ecosystem-based-management integrated-water-resources-management basin-management catchment-management landscape-management seascape-management connectivity-conservation corridor stepping-stone buffer-zone matrix-management countryside-biogeography reconciliation-ecology novel-ecosystem designer-ecosystem ecosystem-service provisioning-service regulating-service supporting-service cultural-service food-production water-supply raw-materials genetic-resources medicinal-resources ornamental-resources air-quality-regulation climate-regulation water-regulation erosion-regulation water-purification waste-treatment disease-regulation pest-regulation pollination seed-dispersal habitat-provision nutrient-cycling soil-formation primary-production recreation tourism aesthetic-value spiritual-value educational-value scientific-value inspiration sense-of-place cultural-heritage traditional-knowledge indigenous-knowledge local-knowledge ecosystem-service-valuation economic-valuation contingent-valuation choice-experiment benefit-transfer total-economic-value use-value non-use-value direct-use indirect-use option-value bequest-value existence-value willingness-to-pay willingness-to-accept cost-benefit-analysis cost-effectiveness-analysis multi-criteria-analysis decision-support uncertainty risk-assessment scenario-analysis sensitivity-analysis robustness-analysis adaptive-capacity resilience vulnerability exposure sensitivity coping-capacity transformation social-ecological-system complex-adaptive-system tipping-point regime-shift alternative-stable-state hysteresis path-dependence legacy-effect slow-variable fast-variable panarchy adaptive-cycle exploitation release reorganization foresight anticipatory-governance transformative-change sustainability-science future-earth interdisciplinary transdisciplinary problem-oriented solution-oriented action-oriented knowledge-co-production boundary-work boundary-object boundary-organization science-policy-interface science-society-interface knowledge-brokerage knowledge-exchange knowledge-integration mode-1-science mode-2-science triple-helix quadruple-helix responsible-innovation reflexive-governance adaptive-governance collaborative-governance polycentric-governance network-governance self-organization collective-action common-pool-resource tragedy-of-the-commons social-dilemma institutional-analysis institutional-design Ostrom-design-principles monitoring sanctioning conflict-resolution nested-enterprises proportionality collective-choice constitutional-choice operational-choice collective-action-theory game-theory prisoner's-dilemma chicken-game assurance-game coordination-game evolutionary-game-theory replicator-dynamics ESS Nash-equilibrium Pareto-optimality social-optimum market-failure government-failure voluntary-failure non-market-value public-good common-good club-good private-good rivalry excludability free-rider hold-up-problem moral-hazard adverse-selection information-asymmetry transaction-cost property-right common-property state-property private-property hybrid-property bundle-of-rights usufruct access withdrawal alienation tenure-security land-tenure water-tenure resource-tenure customary-tenure statutory-tenure legal-pluralism de-facto de-jure formal informal legality legitimacy recognition deviance corruption elite-capture social-capital bonding-capital bridging-capital linking-capital trust reciprocity reputation social-network social-embeddedness structural-hole brokerage closure cohesion density centrality betweenness degree eigenvector PageRank small-world scale-free random-network regular-network hierarchical-network modularity community-structure clustering assortativity homophily heterophily preferential-attachment fitness-model network-evolution network-dynamics temporal-network multilayer-network multiplex-network bipartite-network affiliation-network one-mode-network two-mode-network adjacency-matrix edge-list graph-theory vertex edge node link tie connection path cycle tree forest component giant-component percolation phase-transition criticality self-organized-criticality power-law heavy-tail Pareto-distribution lognormal-distribution exponential-distribution Poisson-distribution binomial-distribution normal-distribution Gaussian-distribution statistical-distribution probability-distribution cumulative-distribution probability-density-function cumulative-distribution-function survival-function hazard-function moment mean median mode variance standard-deviation coefficient-of-variation skewness kurtosis quantile percentile decile quartile interquartile-range range minimum maximum outlier robust-statistic parametric-test non-parametric-test hypothesis-testing null-hypothesis alternative-hypothesis significance-level p-value confidence-interval type-I-error type-II-error statistical-power effect-size sample-size sampling-design experimental-design observational-study quasi-experiment natural-experiment randomized-controlled-trial before-after-control-impact BACI impact-assessment environmental-impact-assessment strategic-environmental-assessment cumulative-impact-assessment social-impact-assessment health-impact-assessment life-cycle-assessment carbon-footprint water-footprint ecological-footprint material-flow-analysis substance-flow-analysis energy-analysis exergy-analysis emergy-analysis input-output-analysis environmentally-extended-input-output social-accounting-matrix computable-general-equilibrium agent-based-model system-dynamics-model Bayesian-network structural-equation-model path-analysis factor-analysis principal-component-analysis cluster-analysis discriminant-analysis canonical-correspondence-analysis redundancy-analysis non-metric-multidimensional-scaling ordination classification regression-analysis linear-regression nonlinear-regression generalized-linear-model generalized-additive-model mixed-effects-model 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Trichadenotecnum
booklice, barklice
Trichadenotecnum is a large genus of barklice in the family Psocidae, containing over 200 described species. It is distinguished from related genera by forming a monophyletic group with highly variable genital morphology, particularly in males. The genus exhibits diverse reproductive strategies, including both biparental sexual reproduction and obligate or facultative parthenogenesis (thelytoky) depending on the species.
algivore parthenogenesis genital-morphology species-complex temperate boreal
Triclistus emarginalus
Triclistus emarginalus is a species of ichneumon wasp in the family Ichneumonidae. The species was described by Thomas Say in 1829. It is recorded from several localities in central Canada. As a member of the genus Triclistus, it is presumed to be a koinobiont endoparasitoid of Lepidoptera larvae, though direct host records for this species are not documented.
parasitoid ichneumonid central-Canada boreal Lepidoptera-parasitoid
Trirhabda borealis
Boreal Goldenrod Leaf Beetle
Trirhabda borealis is a skeletonizing leaf beetle in the family Chrysomelidae. It is a specialist herbivore associated with goldenrod (Solidago) and has been studied for its movement behavior in fragmented versus continuous habitats. The species occurs in North America, with records from western Canada and the northern United States.
Chrysomelidae skeletonizing-leaf-beetle goldenrod-specialist landscape-ecology movement-behavior herbivore North-America boreal montane Trirhabda Solidago fragmentation habitat-specialist
Upis ceramboides
Roughened Darkling Beetle, kökskörven
Upis ceramboides is a fire-dependent darkling beetle that colonizes burned deciduous trees, particularly birch. The species has declined in southern Sweden due to fire suppression and modern forestry, persisting mainly in northern Scandinavia, Alaska, and Canada. Adults exhibit extreme freeze tolerance, surviving temperatures well below freezing through unique biochemical adaptations including xylomannan antifreeze and threitol. Larvae develop in fire-damaged inner bark rich in fungal mycelia, with a two-to-three-year life cycle.
fire-dependent freeze-tolerant boreal vulnerable wood-inhabiting post-fire-succession
Vertagopus pseudocinereus
Vertagopus pseudocinereus is a species of elongate springtail in the family Isotomidae, described from Arctic and northern temperate regions. It belongs to the order Entomobryomorpha, characterized by relatively long antennae and a slender body form compared to the more compact Poduromorpha. The species has been recorded across circumpolar and northern montane regions.
springtail Collembola Isotomidae Arctic boreal elongate entomobryomorph soil-fauna decomposer microarthropod
Walckenaeria castanea
Walckenaeria castanea is a species of dwarf spider (family Linyphiidae) first described by Emerton in 1882. It is known from northern North America, with documented occurrences in the United States, Canada, and Greenland. As a member of the sheet-web weavers, it constructs horizontal webs to capture prey. The species is among the smaller spiders in its family, consistent with the 'dwarf spider' common name applied to linyphiids.
spider arachnid dwarf-spider sheet-web-weaver North-America Arctic boreal
Walckenaeria spiralis
Spiraling Sheet-web Weaver
Walckenaeria spiralis is a dwarf spider species in the family Linyphiidae, first described by Emerton in 1882. It belongs to a large genus of small sheet-web weaving spiders distributed across the Holarctic region. The species is known from scattered records across northern North America and the Russian Far North-East, suggesting a boreal distribution pattern.
spider Linyphiidae dwarf-spider sheet-web-weaver Holarctic boreal
Xanthorhoe packardata
Packard's Carpet
Xanthorhoe packardata, commonly known as Packard's Carpet, is a North American moth species in the family Geometridae. Described by James Halliday McDunnough in 1945, this species belongs to the diverse carpet moth genus Xanthorhoe. The species has been documented across prairie and boreal regions of Canada and the northern United States, with 265 observations recorded on iNaturalist. As with many Xanthorhoe species, detailed biological information remains limited in the scientific literature.
geometridae larentiinae north-america prairie boreal understudied
Xestia okakensis
Okak Cutworm, Okak Dart Moth
Xestia okakensis is a cutworm moth in the family Noctuidae. It was first described by Packard in 1867. The species has two recognized subspecies: X. o. okakensis and X. o. morandi. It occurs across northern regions of North America and Eurasia.
cutworm dart-moth Noctuidae Noctuinae Holarctic boreal Packard-1867
Xestia quieta
Xestia quieta is a noctuid moth distributed across northern boreal and arctic regions of Eurasia and North America. Adults are active in mid-summer, with flight periods recorded in June and July. The species is characterized by a relatively small wingspan of 25–29 mm. Larval host associations remain uncertain, though Empetrum species have been suggested as possible food plants.
moth Noctuidae arctic boreal northern-distribution
Xestia tecta
Xestia tecta is a noctuid moth with a disjunct Holarctic distribution, occurring in boreal Fennoscandia and northwestern Russia in Europe, and across northern Siberia, Alaska, and north-central North America. The species has a two-year life cycle, with adults active from July to August. Males are nocturnal while females are active in the afternoon.
boreal Holarctic biennial dwarf-birch Vaccinium sexual-dimorphism-in-activity Noctuidae Lepidoptera
Xylotrechus undulatus
Spruce Zebra Beetle
Xylotrechus undulatus is a longhorned beetle in the family Cerambycidae, described by Thomas Say in 1824. It is commonly known as the Spruce Zebra Beetle, a name reflecting its association with coniferous hosts and likely patterned appearance. The species occurs across northern North America, with records from Canada (Labrador, Manitoba, New Brunswick, Newfoundland) and presumably extending into the northern United States. As a member of the tribe Clytini, it belongs to a group of cerambycids often associated with woody plants.
cerambycidae longhorned-beetle boreal conifer-associated
Yukonodelphax
Yukonodelphax is a genus of planthoppers in the family Delphacidae, described by Wilson in 1992. The genus belongs to the tribe Delphacini within the subfamily Delphacinae. Members of this genus are small, sap-feeding insects associated with grassland and wetland habitats. Very few observations of this genus exist in biodiversity databases.
delphacid planthopper Hemiptera North-America boreal grassland
Yukonodelphax kendallae
Yukonodelphax kendallae is a species of planthopper in the family Delphacidae, first described by Wilson in 1992. It is a small, winged insect belonging to a group known for their association with grasses and sedges. The species is known from northern North America, with confirmed records from Yukon and Alberta.
Delphacidae planthopper Hemiptera Canada boreal grassland
Zygiella nearctica
Nearctic Sector Orbweaver
Zygiella nearctica is a boreal orb-weaving spider in the family Araneidae. Like other members of its genus, it constructs a characteristic orb web with a missing sector in the upper portion. The species is native to North America and has been documented across a broad geographic range from coast to coast in Canada, extending southward into the northern United States.
spider orb-weaver boreal native North-America missing-sector-web