Sexual-conflict
Guides
Cyphomyrmex
fungus-growing ants
Cyphomyrmex is a genus of small, drab-colored fungus-growing ants in the tribe Attini, found primarily in the Neotropics. These ants cultivate fungi in the tribe Leucocoprineae as their primary food source, with most species growing fungal nodules rather than full mycelial gardens. Colonies are typically monogynous and small, rarely exceeding 500 workers. The genus is divided into two species complexes: the strigatus complex (South America only) and the rimosus complex (southern North America to South America). Cyphomyrmex represents a basal lineage among attine ants and serves as sister group to Mycetophylax.
fungus-growing-antsattine-antsMyrmicinaeNeotropicalmutualismfungicultureLeucocoprineaemonogynyparasitoid-waspssocial-parasitismchemical-ecologyalkaloid-venomnest-architecturebehavioral-plasticitycytogeneticschromosome-evolutionGuiana-ShieldBrazilPanamaPuerto-RicoMesoamericaArgentinaUnited-StatesTexasCaliforniaFloridayeast-gardensmycelial-gardensrimosus-complexstrigatus-complexage-polyethismtrophallaxisthanatosisfeigning-deathDiapriidaeAcanthopriaMimopriellaMegalomyrmexsocial-parasiteC.-longiscapusC.-transversusC.-laevigatusC.-rimosusC.-minutusC.-lectusC.-cornutusC.-costatuspheromones3-octanolfarnesenestrail-followingalarm-signaldiketopiperazinesantifungal-compoundsdefensive-behaviorcolony-defenseflight-responserecruitmentLanchester's-lawskaryotypechromosome-numberrDNAmicrosatellitesFISHchamber-depthgallery-lengthfire-disturbancesavanna-forest-transitionarboreal-nestingclay-auriclessoil-nestswood-nestsepiphytic-nestsmoss-nestscoconut-nestsdesiccation-susceptibilitymoist-habitatsbasal-attinephylogeneticssister-groupchemical-evolutionvenom-alkaloidsbehavioral-manipulationhost-parasite-interactionecosystem-engineeringnutrient-cyclingdecompositionorganic-matterinsect-fecesexoskeleton-substrategarden-transplantationworker-polymorphismqueen-numberdealate-queensalatesbrood-careecdysis-assistanceforagingsugar-collectionplant-exudatesfungal-domesticationnodule-cultivationmycelium-cultivationagricultural-behaviornest-entrancefunnel-structureexposed-gardenssymbiont-diversitygeographic-variationresearch-modelevolutionary-biologymutualism-evolutionant-fungus-coevolutionchemical-communicationsocial-insectseusocialitycolony-sizesmall-coloniesslow-movementcrypsisdebris-mimicrypredation-avoidanceparasitoid-defensewasp-killingcolony-abandonmentresource-rescuethief-ant-defensevenom-resistancetoxicity-tolerancebehavioral-suppressionplaying-deadalkaloid-manipulationfungal-secondary-metabolitesantibacterial-compoundsantiviral-compoundsgarden-protectionmicrobial-defensenest-microclimatetemperature-regulationhumidity-requirementsdepth-effectsfire-adaptationdisturbance-ecologyhabitat-specificitysubstrate-specializationclay-constructionsoil-manipulationarchitectural-plasticityvertical-nestingembankment-nestingoverhang-nestingpendant-nestsswallow-nest-mimicryresearch-accessibilityfield-biologytropical-ecologyNeotropical-myrmecologybiodiversityconservationinvasive-species-contextnative-speciesbiological-controlIntegrated-Pest-Managementagricultural-ecologyforest-ecologysavanna-ecologytransitional-habitatsdisturbed-areasurban-ecologyanthropogenic-impactclimate-sensitivityhabitat-limitationrange-boundariesdispersalcolonizationestablishmentpopulation-dynamicsdemographycolony-densitynest-spacingintraspecific-competitioninterspecific-competitionterritorialityresource-defensecombat-behavioraggression-levelsrecruitment-behaviorchemical-signalingalarm-pheromonestrail-pheromonesrecognition-cuescuticular-hydrocarbonsvenom-compositiondefensive-secretionsmandibular-glandsDufour's-glandmetapleural-glandsantibiotic-productiongrooming-behaviorfungal-inoculationintegumental-fungiyeast-growthlarval-groominggarden-maintenancesubstrate-preparationfecal-fertilizeranal-trophallaxiscrop-regurgitationfluid-applicationdrying-behaviornodule-formationtransplantation-behaviorgarden-establishmentceiling-gardensroot-associationarchitectural-innovationnest-site-selectionmicrohabitat-choicemoisture-requirementsthermal-bufferingpredator-avoidanceparasite-avoidancedisease-resistancesocial-immunitycollective-behaviordivision-of-labortask-allocationtemporal-polyethismworker-agenurse-workersforager-workerssoldier-caste-absencemonomorphismworker-size-variationqueen-worker-differentiationreproductive-castegyne-productionmale-productionseasonal-reproductioncolony-foundingclaustral-foundingnon-claustral-foundingfungal-inoculumfounding-queenfirst-worker-generationnutritional-dependencyfat-reservesmetabolic-adaptationdigestive-physiologyenzyme-complementfungal-enzymelignocellulose-degradationnutritional-mutualismobligate-mutualismvertical-transmissionhorizontal-transmissionsymbiont-switchingcultivar-replacementgarden-failurecolony-mortalitypopulation-turnovergeneration-timelongevitysurvivorshiplife-expectancyagingsenescencereproductive-investmentcolony-growthcolony-declinebuddingfissionreproduction-modegenetic-structurerelatednessmating-systemnuptial-flightmate-choicesperm-storagecolony-odornestmate-recognitionforeign-rejectionagonistic-behaviorterritorial-markingboundary-defenseraiding-behaviorrobbing-behaviorcleptobiosisdulosisslaveryinquilinismguest-antsmyrmecophilesnest-associatescommensalisminquilinesparasite-tolerancehost-manipulationvenom-alkaloidpyrrolidineindolizidinepiperidinenonanalfarnesenesesquiterpeneagriculture-chemicalgaster-extractchemical-diversitychemical-simplicityevolutionary-precursorderived-chemistrybiosynthetic-pathwaysemiochemicalinfochemicalcommunicationinformation-transfercolony-organizationsocial-structurepolygynyqueen-conditiondealationwing-sheddin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vesiculosa
Great Pondhawk
Erythemis vesiculosa, commonly known as the great pondhawk, is a dragonfly in the family Libellulidae. It is distributed throughout the Americas, ranging from the southern United States through Central and South America. The species has been documented in insular populations, including the Galápagos Islands, where it exhibits behavioral adaptations to species-poor communities.
Gerris
water striders
Gerris is a genus of water striders (family Gerridae) comprising 43 species in three subgenera (Gerris, Gerriselloides, and Macrogerris). Species in this genus inhabit freshwater surfaces across temperate regions, where they use surface tension to walk on water. The genus has become a model system for studying sexual conflict, with well-documented antagonistic coevolution between males and females over mating control.
Gerris buenoi
water strider
Gerris buenoi is a small water strider species native to North America, first described in 1911. Adults measure 8-10 mm in length and possess elongated mid-legs adapted for locomotion on water surfaces. The species exhibits wing polymorphism, with multiple wing forms corresponding to different seasons and environmental conditions. It has been extensively studied as a model organism for sexual conflict research and was the first water strider to have its genome sequenced.
Ischnura hastata
Citrine Forktail
Ischnura hastata, the Citrine Forktail, is a small damselfly with remarkable reproductive diversity across its range. Native populations in North America exhibit typical sexual reproduction, while populations in the Azores archipelago represent the only known example of parthenogenesis in the order Odonata. A population in the Galápagos Islands has evolved monandry (single mating per female), driven by extremely short adult lifespans of 1–3 days. The species occupies diverse wetland habitats from temperate North America to oceanic islands.
Photinus ignitus
Ignited Firefly
Photinus ignitus is a North American firefly species distinguished by its bioluminescent courtship displays. Males produce characteristic flash patterns to attract females, who respond from perches in vegetation. Research has documented seasonal plasticity in female mate choice behavior, with females becoming less selective as the breeding season progresses. Like other Photinus species, it produces defensive compounds called lucibufagins that protect against predators.
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Saltella is a genus of small flies in the family Sepsidae. The genus includes five described species, with Saltella sphondylii being the most studied due to its unusual mating behavior. Research on this species has revealed significant costs of copulation to male longevity, making it a model organism for studying sexual conflict and the evolution of mating systems.
Sancassania
Sancassania is a genus of mites in the family Acaridae containing more than 80 species. Many species are associated with fungi, particularly mushrooms, with some lineages having specialized to exploit this ephemeral resource. Other species are phoretic on beetles or occur in soil and decomposing organic matter. The genus includes economically significant species associated with agricultural crops and biocontrol systems.
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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Thermosphaeroma is a genus of isopod crustaceans in the family Sphaeromatidae, endemic to thermal springs of the southwestern United States and central Mexico. The genus contains nine described species, most of which are critically endangered or extinct in the wild due to groundwater extraction and habitat alteration. These isopods exhibit specialized adaptations to thermo-mineral spring environments, including temperature-dependent life histories and pronounced sexual dimorphism in uropod morphology. Several species have been studied for their complex social behaviors, including precopulatory mate-guarding and cannibalism.
Tramea darwini
Striped Saddlebags
Tramea darwini is a dragonfly species in the family Libellulidae, commonly known as the Striped Saddlebags. An insular population has been documented exhibiting exceptional behavioral diversity in oviposition strategies, with four distinct modes recorded—more than any other studied population of the genus. This species belongs to a genus characterized by saddlebag-like markings on the hindwings.
Trypoxylon politum
Pipe Organ Mud Dauber, Organ-pipe Mud-dauber Wasp
Trypoxylon politum is a large, solitary spider-hunting wasp and the only North American member of its genus that constructs free-standing mud nests rather than using pre-existing cavities. Its distinctive nest consists of multiple parallel tubular mud columns resembling organ pipes, with each tube internally partitioned into several cells provisioned with paralyzed spiders. The species exhibits cooperative behavior between sexes: males defend nests against parasites and rival males while females hunt and construct. Native to eastern North America, it has shown recent range expansion westward into Colorado and coexists with other mud dauber species.
Zygogramma
Zygogramma is a large genus of leaf beetles in the subfamily Chrysomelinae, comprising approximately 100 species with 13 species occurring north of Mexico. The genus is characterized by its association with plants in the family Asteraceae, particularly ragweeds (Ambrosia) and related genera. Several species, especially Z. bicolorata, have been extensively studied and deployed as biological control agents against invasive weeds. The genus is distinguished from related genera such as Calligrapha by fused tarsal claws.