[{"data":1,"prerenderedAt":321},["ShallowReactive",2],{"glossary_en:\u002Fslovar\u002Fsekvestraciya-toksinov":3,"alt-locale:glossary_en:\u002Fslovar\u002Fsekvestraciya-toksinov":103,"section-listing:glossary_en:\u002Fslovar":128,"section-listing:disabled":314,"related-covers:en:":315,"related-covers:en:\u002Fvidy-babochek\u002Fvidy\u002Fmonarh|\u002Fslovar\u002Faposematizm|\u002Fslovar\u002Fkormovoe-rastenie":316},{"id":4,"title":5,"body":6,"coverImage":88,"description":89,"extension":90,"faq":91,"imagePrompt":101,"meta":102,"navigation":103,"order":104,"pageType":105,"path":106,"publishedAt":107,"readingMinutes":108,"relatedLinks":109,"seo":122,"sitemap":125,"stem":126,"tags":104,"updatedAt":104,"__hash__":127},"glossary_en\u002Fslovar\u002Fsekvestraciya-toksinov.md","Toxin Sequestration",{"type":7,"value":8,"toc":80},"minimark",[9,14,22,25,29,49,52,56,59,63,66],[10,11,13],"h2",{"id":12},"definition","Definition",[15,16,17,21],"p",{},[18,19,20],"strong",{},"Toxin sequestration"," is the process by which a caterpillar consumes toxic compounds from its host plant and stores them, largely unchanged, within its own body tissues rather than metabolizing them away. The stored toxins persist through metamorphosis, so the resulting adult butterfly carries the same chemical defense the caterpillar built up — turning a plant's evolved anti-herbivore chemistry into the insect's own anti-predator weapon.",[15,23,24],{},"This differs fundamentally from simply tolerating a toxic diet: sequestering species have evolved specific physiological adaptations, often modified target proteins immune to the toxin's normal mode of action, that let them not just survive the compound but actively concentrate and retain it for their own defensive use.",[10,26,28],{"id":27},"the-monarch-and-milkweed","The monarch and milkweed",[15,30,31,32,35,36,40,41,44,45,48],{},"The best-documented case of toxin sequestration among butterflies is the ",[18,33,34],{},"monarch"," (",[37,38,39],"em",{},"Danaus plexippus","), whose caterpillars feed exclusively on milkweed plants (genus ",[37,42,43],{},"Asclepias","). Milkweed produces ",[18,46,47],{},"cardiac glycosides",", compounds that disrupt the sodium-potassium pump in heart and nerve cells of most vertebrates, making the plant toxic to nearly all herbivores. Monarch caterpillars have evolved a modified version of this same pump that is largely insensitive to the glycosides, allowing them to feed on milkweed unharmed while accumulating the toxin in their tissues.",[15,50,51],{},"The result is a monarch caterpillar, chrysalis, and adult butterfly that are all distasteful and mildly toxic to birds — a fact advertised openly through the monarch's bold orange, black, and white warning pattern rather than concealed, since a predator that survives a taste is more valuable to the butterfly if it also remembers to avoid the pattern in the future.",[10,53,55],{"id":54},"toxicity-is-not-uniform","Toxicity is not uniform",[15,57,58],{},"An important nuance is that sequestered toxicity is not a fixed, species-wide constant. Cardiac glycoside concentration varies considerably between different milkweed species, and even between individual plants of the same species depending on growing conditions. A monarch caterpillar raised on a low-toxicity milkweed species accumulates correspondingly less defense than one raised on a high-toxicity species, meaning individual monarchs within the same population can differ meaningfully in how unpleasant or dangerous they actually are to a predator — a detail that complicates simple predator-avoidance learning and is an active area of chemical ecology research.",[10,60,62],{"id":61},"sequestration-beyond-the-monarch","Sequestration beyond the monarch",[15,64,65],{},"Toxin sequestration from host plants is widespread across Lepidoptera wherever caterpillars feed on chemically defended plants, including various swallowtails feeding on toxic host plants and several tiger moth species that sequester alkaloids. In each case, the same underlying logic applies: a plant's defense, evolved to deter being eaten, is co-opted wholesale by the insect that has evolved to eat it anyway.",[15,67,68,69,74,75,79],{},"See also: ",[70,71,73],"a",{"href":72},"\u002Fen\u002Fslovar\u002Faposematizm","aposematism",", ",[70,76,78],{"href":77},"\u002Fen\u002Fslovar\u002Fkormovoe-rastenie","host plant",".",{"title":81,"searchDepth":82,"depth":82,"links":83},"",2,[84,85,86,87],{"id":12,"depth":82,"text":13},{"id":27,"depth":82,"text":28},{"id":54,"depth":82,"text":55},{"id":61,"depth":82,"text":62},"\u002Fimages\u002Fslovar\u002Fsekvestraciya-toksinov.png","Toxin sequestration is when a caterpillar stores plant-derived toxins from its host plant unchanged in its own tissues, turning the plant's chemical defense into its own.","md",[92,95,98],{"q":93,"a":94},"What is toxin sequestration?","Toxin sequestration is the process by which a caterpillar feeds on a toxic host plant and stores the plant's defensive chemicals unchanged, or only slightly modified, in its own body tissues, rather than breaking them down. The toxins then protect the caterpillar and, after metamorphosis, the adult butterfly from predators.",{"q":96,"a":97},"What is the classic example of toxin sequestration in butterflies?","The monarch (Danaus plexippus), whose caterpillars feed exclusively on milkweed plants containing cardiac glycosides — compounds toxic to the heart and nervous system of vertebrates. Monarchs are immune to these toxins and store them, becoming toxic and bitter-tasting to birds throughout their own lives.",{"q":99,"a":100},"Does sequestration make every individual butterfly equally toxic?","No. Toxicity varies with the specific milkweed species and even the individual plant a caterpillar fed on, since cardiac glycoside concentration differs between milkweed species; monarchs reared on low-toxicity milkweed can be considerably more palatable to predators than those reared on high-toxicity species, which is part of why some individual monarchs get attacked despite the species' general reputation for toxicity.","Photorealistic macro photo, orange and black monarch butterfly caterpillar feeding on a milkweed leaf, visible white latex sap on the chewed leaf edge, natural garden light, 16:9",{},true,null,"glossary","\u002Fslovar\u002Fsekvestraciya-toksinov","19.08.2026",1,[110,114,118],{"label":111,"path":112,"description":113},"Monarch","\u002Fvidy-babochek\u002Fvidy\u002Fmonarh","The best-known example of toxin sequestration from a milkweed host plant",{"label":115,"path":116,"description":117},"Aposematism","\u002Fslovar\u002Faposematizm","The warning coloration that advertises the toxicity gained through sequestration",{"label":119,"path":120,"description":121},"Host Plant","\u002Fslovar\u002Fkormovoe-rastenie","The larval food source from which sequestered toxins originate",{"title":123,"description":124},"Toxin Sequestration — how caterpillars turn plant poison into defense","Toxin sequestration: caterpillars storing plant-derived toxins in their own tissues for defense. The monarch and milkweed example explained.",{"loc":106},"slovar\u002Fsekvestraciya-toksinov","9HMD-H2vsTA7iysPrXf57Tlw-i5e0t7MX9l_MX8i6C8",[129,135,138,144,149,154,159,164,169,174,179,184,190,195,199,204,209,214,219,224,229,234,239,244,249,254,259,264,269,274,279,285,291,297,302,307,308],{"title":130,"description":131,"path":132,"coverImage":133,"publishedAt":134,"order":104},"Antenna","Butterfly antennae are paired sensory organs on the head, used to detect odors, pheromones, and vibrations. Their shape is a key identification trait.","\u002Fslovar\u002Fantenna","\u002Fimages\u002Fslovar\u002Fantenna.png","01.05.2026",{"title":115,"description":136,"path":116,"coverImage":137,"publishedAt":134,"order":104},"Aposematism is warning coloration in toxic or unpalatable butterflies. Bright colors signal danger to predators and protect the species from being eaten.","\u002Fimages\u002Fslovar\u002Faposematizm.png",{"title":139,"description":140,"path":141,"coverImage":142,"publishedAt":143,"order":104},"Batesian Mimicry","Batesian mimicry is when a harmless species evolves to resemble a toxic or dangerous one, borrowing its predator-deterrent reputation without the actual defense.","\u002Fslovar\u002Fbatezovskaya-mimikriya","\u002Fimages\u002Fslovar\u002Fbatezovskaya-mimikriya.png","25.07.2026",{"title":145,"description":146,"path":147,"coverImage":148,"publishedAt":134,"order":104},"Biotope","A biotope is a uniform habitat patch with specific conditions, home to a characteristic community. Each butterfly species prefers its own biotope.","\u002Fslovar\u002Fbiotop","\u002Fimages\u002Fslovar\u002Fbiotop.png",{"title":150,"description":151,"path":152,"coverImage":153,"publishedAt":134,"order":104},"Caterpillar","The caterpillar is the larval stage of a butterfly, whose main task is to eat and grow — accumulating about 99% of the energy needed for transformation.","\u002Fslovar\u002Fgusenica","\u002Fimages\u002Fslovar\u002Fgusenica.jpg",{"title":155,"description":156,"path":157,"coverImage":158,"publishedAt":134,"order":104},"Chitin","Chitin is the main structural polymer of insect integument. The hard external skeleton of butterflies, wing scales, and caterpillar armor are made of chitin.","\u002Fslovar\u002Fkhitin","\u002Fimages\u002Fslovar\u002Fkhitin.jpg",{"title":160,"description":161,"path":162,"coverImage":163,"publishedAt":134,"order":104},"Chrysalis","A chrysalis is a butterfly pupa with a hard chitinous case, often with a golden or silvery sheen. Inside, the organism is completely rebuilt.","\u002Fslovar\u002Fkhrizalida","\u002Fimages\u002Fslovar\u002Fkhrizalida.jpg",{"title":165,"description":166,"path":167,"coverImage":168,"publishedAt":134,"order":104},"Diapause","Diapause is a state of physiological rest in insects that allows survival of an unfavorable season. In butterflies, it can occur at any developmental stage.","\u002Fslovar\u002Fdiapauza","\u002Fimages\u002Fslovar\u002Fdiapauza.png",{"title":170,"description":171,"path":172,"coverImage":173,"publishedAt":134,"order":104},"Dimorphism","Dimorphism is the existence of two distinct forms within one species. In butterflies, males and females of the same species can differ sharply in coloration.","\u002Fslovar\u002Fdimorfizm","\u002Fimages\u002Fslovar\u002Fdimorfizm.jpg",{"title":175,"description":176,"path":177,"coverImage":178,"publishedAt":134,"order":104},"Eclosion","Eclosion is the emergence of an adult butterfly from the pupa. One of the most vulnerable and striking moments in the life cycle of lepidopterans.","\u002Fslovar\u002Feklozia","\u002Fimages\u002Fslovar\u002Feklozia.jpg",{"title":180,"description":181,"path":182,"coverImage":183,"publishedAt":134,"order":104},"Endemic","An endemic is a species that lives only in a specific geographic region and nowhere else. Islands and mountains are the main centers of butterfly endemism.","\u002Fslovar\u002Fendemik","\u002Fimages\u002Fslovar\u002Fendemik.jpg",{"title":185,"description":186,"path":187,"coverImage":188,"publishedAt":189,"order":104},"Eyespots","Eyespots are circular wing markings that mimic a vertebrate eye, used by butterflies either to startle predators or to redirect attacks away from vital body parts.","\u002Fslovar\u002Flozhnye-glazki","\u002Fimages\u002Fslovar\u002Flozhnye-glazki.png","13.08.2026",{"title":191,"description":192,"path":193,"coverImage":194,"publishedAt":134,"order":104},"Holometabolism","Holometabolism is a type of insect development with complete metamorphosis: egg → larva → pupa → imago. All butterflies develop by this type.","\u002Fslovar\u002Fgolometaboliya","\u002Fimages\u002Fslovar\u002Fgolometaboliya.jpg",{"title":196,"description":197,"path":120,"coverImage":198,"publishedAt":134,"order":104},"Host plant","A host plant is a plant whose leaves a caterpillar of a given butterfly species feeds on. Most species are strictly specialized on 1–3 host plants.","\u002Fimages\u002Fslovar\u002Fkormovoe-rastenie.jpg",{"title":200,"description":201,"path":202,"coverImage":203,"publishedAt":134,"order":104},"Imago","Imago is the adult, sexually mature stage of an insect with fully formed wings. The final phase of complete metamorphosis.","\u002Fslovar\u002Fimago","\u002Fimages\u002Fslovar\u002Fimago.jpg",{"title":205,"description":206,"path":207,"coverImage":208,"publishedAt":134,"order":104},"Lepidoptera","Lepidoptera is the order of scale-winged insects, including butterflies and moths. The name means “scale-winged”: wings are covered with microscopic scales.","\u002Fslovar\u002Flepidoptera","\u002Fimages\u002Fslovar\u002Flepidoptera.jpg",{"title":210,"description":211,"path":212,"coverImage":213,"publishedAt":134,"order":104},"Melanism","Melanism is excess accumulation of dark pigment melanin, causing darkened coloration. Industrial melanism in the peppered moth is a classic evolution example.","\u002Fslovar\u002Fmelanizm","\u002Fimages\u002Fslovar\u002Fmelanizm.jpg",{"title":215,"description":216,"path":217,"coverImage":218,"publishedAt":134,"order":104},"Metamorphosis","Metamorphosis is complete transformation of an insect passing through four developmental stages: egg, larva (caterpillar), pupa, and adult (imago).","\u002Fslovar\u002Fmetamorfoz","\u002Fimages\u002Fslovar\u002Fmetamorfoz.jpg",{"title":220,"description":221,"path":222,"coverImage":223,"publishedAt":134,"order":104},"Migration","Butterfly migration is seasonal movement over long distances. The record holder is the monarch, at up to 4,500 km; red admirals and painted ladies also migrate.","\u002Fslovar\u002Fmigraciya","\u002Fimages\u002Fslovar\u002Fmigraciya.jpg",{"title":225,"description":226,"path":227,"coverImage":228,"publishedAt":134,"order":104},"Mimicry","Mimicry in butterflies is resemblance to other species or objects for protection from predators. Batesian and Müllerian mimicry, with examples.","\u002Fslovar\u002Fmimikriya","\u002Fimages\u002Fslovar\u002Fmimikriya.jpg",{"title":230,"description":231,"path":232,"coverImage":233,"publishedAt":134,"order":104},"Monophage","A monophage is a species whose caterpillars feed on only one species or genus of plant. Monophagy makes a butterfly vulnerable if that plant disappears.","\u002Fslovar\u002Fmonofag","\u002Fimages\u002Fslovar\u002Fmonofag.jpg",{"title":235,"description":236,"path":237,"coverImage":238,"publishedAt":134,"order":104},"Nectar","Nectar is the sweet secretion of flowers and the main energy source for adult butterflies, which drink it through the proboscis and carry pollen too.","\u002Fslovar\u002Fnektar","\u002Fimages\u002Fslovar\u002Fnektar.jpg",{"title":240,"description":241,"path":242,"coverImage":243,"publishedAt":134,"order":104},"Oviposition","Oviposition is egg-laying by a female butterfly, who carefully chooses a host plant, tapping leaves with her legs, and lays eggs on the underside.","\u002Fslovar\u002Fovipozitsiya","\u002Fimages\u002Fslovar\u002Fovipozitsiya.jpg",{"title":245,"description":246,"path":247,"coverImage":248,"publishedAt":134,"order":104},"Pheromones","Butterfly pheromones are chemical signals for attracting mates, marking territory, and communication. Males and females release different pheromones.","\u002Fslovar\u002Fferomon","\u002Fimages\u002Fslovar\u002Fferomon.jpg",{"title":250,"description":251,"path":252,"coverImage":253,"publishedAt":134,"order":104},"Pollination","Pollination is transfer of pollen from anther to stigma. Butterflies are important pollinators: they move pollen between flowers while feeding on nectar.","\u002Fslovar\u002Fopylenie","\u002Fimages\u002Fslovar\u002Fopylenie.jpg",{"title":255,"description":256,"path":257,"coverImage":258,"publishedAt":134,"order":104},"Polyphagy","Polyphagy is the ability to feed on a wide range of plants. Polyphagous caterpillars are less vulnerable when one host plant species is lost than monophages.","\u002Fslovar\u002Fpolifagiya","\u002Fimages\u002Fslovar\u002Fpolifagiya.jpg",{"title":260,"description":261,"path":262,"coverImage":263,"publishedAt":134,"order":104},"Proboscis","The proboscis is the mouthpart of an adult butterfly, shaped as a flexible tube for sucking nectar and other liquids. At rest it is coiled in a spiral.","\u002Fslovar\u002Fkhobotok","\u002Fimages\u002Fslovar\u002Fkhobotok.jpg",{"title":265,"description":266,"path":267,"coverImage":268,"publishedAt":134,"order":104},"Puddling","Puddling in butterflies is behavior where insects gather on damp soil, puddles, or droppings to obtain mineral salts and amino acids.","\u002Fslovar\u002Fpudling","\u002Fimages\u002Fslovar\u002Fpudling.jpg",{"title":270,"description":271,"path":272,"coverImage":273,"publishedAt":134,"order":104},"Pupa","The pupa is the third stage of complete metamorphosis, when the caterpillar transforms into a butterfly — outwardly still, but rebuilding within.","\u002Fslovar\u002Fkukolka","\u002Fimages\u002Fslovar\u002Fkukolka.jpg",{"title":275,"description":276,"path":277,"coverImage":278,"publishedAt":134,"order":104},"Range","Range is the geographic area within which a given butterfly species lives. Ranges may be continuous, fragmented, expanding, or shrinking.","\u002Fslovar\u002Fareal","\u002Fimages\u002Fslovar\u002Fareal.png",{"title":280,"description":281,"path":282,"coverImage":283,"publishedAt":284,"order":104},"Reintroduction","Reintroduction is the deliberate release of captive-bred or translocated individuals into a habitat where a species has gone locally extinct, aiming to re-establish a self-sustaining wild population.","\u002Fslovar\u002Freintroduktsiya","\u002Fimages\u002Fslovar\u002Freintroduktsiya.png","22.07.2026",{"title":286,"description":287,"path":288,"coverImage":289,"publishedAt":290,"order":104},"Relict Species","A relict species is a survivor of a once-widespread group whose range has contracted to isolated pockets — often mountaintops or glacial refuges — left over after past climate change.","\u002Fslovar\u002Freliktovyi-vid","\u002Fimages\u002Fslovar\u002Freliktovyi-vid.png","01.08.2026",{"title":292,"description":293,"path":294,"coverImage":295,"publishedAt":296,"order":104},"Stenotopic Species","A stenotopic species tolerates only a narrow range of habitat conditions, unlike a eurytopic generalist that thrives across many different environments.","\u002Fslovar\u002Fstenotopnyi-vid","\u002Fimages\u002Fslovar\u002Fstenotopnyi-vid.png","07.08.2026",{"title":298,"description":299,"path":300,"coverImage":301,"publishedAt":134,"order":104},"Taxonomy","Taxonomy is the science of classifying organisms. Butterflies belong to order Lepidoptera; taxonomy explains why the tortoiseshell is a nymphalid, not a blue.","\u002Fslovar\u002Ftaksonomiya","\u002Fimages\u002Fslovar\u002Ftaksonomiya.jpg",{"title":303,"description":304,"path":305,"coverImage":306,"publishedAt":134,"order":104},"Thermoregulation","Thermoregulation in butterflies is maintaining working body temperature. Unable to generate heat, they warm up in sun, wings spread like solar panels.","\u002Fslovar\u002Ftermoregulyatsiya","\u002Fimages\u002Fslovar\u002Ftermoregulyatsiya.jpg",{"title":5,"description":89,"path":106,"coverImage":88,"publishedAt":107,"order":104},{"title":309,"description":310,"path":311,"coverImage":312,"publishedAt":313,"order":104},"Wing Venation","Wing venation is the pattern of hollow, rigid veins that forms a butterfly wing's supporting framework — its precise layout is a key character for identification and classification.","\u002Fslovar\u002Fzhilkovanie-kryla","\u002Fimages\u002Fslovar\u002Fzhilkovanie-kryla.png","27.07.2026",[],[],[317,319,320],{"label":111,"path":112,"description":113,"coverImage":318,"latinName":39},"\u002Fimages\u002Fvidy-babochek\u002Fvidy\u002Fmonarh.jpg",{"label":115,"path":116,"description":117,"coverImage":137,"latinName":104},{"label":119,"path":120,"description":121,"coverImage":198,"latinName":104},1787125910798]