Alaskan Fritillary
EntdeckenInsekten
Alaskan Fritillary
boloria alaskensis
The Alaskan Fritillary (Boloria alaskensis) is a resilient, cold-adapted butterfly that graces the extreme environments of the far north. Thriving in the harsh, wind-swept alpine and arctic tundras of Alaska, northwestern Canada, and northeastern Siberia, this small lepidopteran has evolved unique survival strategies to withstand freezing temperatures. Because the summer season in these regions is incredibly short, the Alaskan Fritillary must act quickly to find mates and feed, making its brief aerial displays a spectacular sight for northern nature enthusiasts. Observing one of these hardy butterflies fluttering low over the rocky scree or basking in the rare arctic sun is a true testament to the tenacity of life in some of the most unforgiving climates on Earth.
Lebensraum: Found in harsh alpine tundra, gravelly scree slopes, and moist arctic meadows, closely tied to areas where dwarf willows grow.
Aussehen
This small butterfly features a wingspan of 3 to 5 centimeters. The upperside of its wings displays a muted, somewhat dusky orange-brown coloration, heavily patterned with dark brown or blackish blurred bands and spots, giving it a characteristic dingy or washed-out appearance that blends seamlessly with tundra gravel. The underside of the hindwing is intricately patterned with a blend of rusty red, ochre, and pale cream or grey bands, serving as excellent camouflage when it rests flat against rocks with its wings closed.
ReichAnimaliaStammArthropodaKlasseInsectaOrdnungLepidopteraFamilieNymphalidaeGattungBoloria
Kategorie
InsektenSeltenheit
Common
Gefahr
1/5 · Sehr gering
Snaps
Mach den ersten Snap!
Interessante Fakten
Due to the extremely short arctic summers, it often takes two full years for a caterpillar to accumulate enough energy to pupate and emerge as an adult.
They practice lateral basking, tilting their wings to expose the darker underparts to the sun to rapidly warm up before taking flight.
To cope with cold, blustery winds, they rarely fly more than a few inches off the ground, keeping them safe within the boundary layer of warmer, calmer air.
Besondere Fähigkeiten
Fähigkeit
Arctic Microclimatic Basking
They rest flat against dark stones or soil to absorb maximum solar radiation, raising their body temperature quickly in cold environments.
Fähigkeit
Freeze-Tolerant Larvae
The caterpillars can survive multiple winters in a semi-frozen, dormant state of diapause before completing their metamorphosis.
Fähigkeit
Low-To-Ground Flight
They fly extremely low to the ground to avoid strong arctic winds that could blow them off course or into inhospitable terrain.
Maße und Details
- Länge
- 1-2 cm
- Flügelspannweite
- 3-5 cm
- Gewicht
- 0.0001-0.0003 kg
- Lebenserwartung
- 1-2 Jahre
- Top Speed
- 15 km/h
- Gelegegröße
- 50-150
- Brutzeit
- 7-14 Tage
Ernährung und Fütterung
As caterpillars, they feed exclusively on the leaves of low-growing arctic willows, while adults consume nectar from various tundra wildflowers.
Altersunterschiede: Caterpillars are leaf chewers restricted to dwarf willow host plants, whereas adults are nectar feeders equipped with a siphoning proboscis.
Hauptnahrung
- Arctic Willow leaves
- Mountain Avens nectar
- Saxifrage nectar
- Dwarf Willow leaves
Nahrungssuche
- Grazing
Ökologische Zusammenhänge
host plant
Arctic Willow
Salix arctica
The caterpillars use this low-growing arctic shrub as their primary larval host plant, feeding on its leaves.
eaten by
American Pipit
Anthus rubescens
This alpine-nesting songbird preys upon the caterpillars and adult butterflies of the Alaskan Fritillary.
mutualism
Eightpetal Mountain-Avens
Dryas octopetala
Adult butterflies visit these ground-hugging flowers to feed on nectar, aiding in pollination.
Merkmale
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Sicherheit
Gefahr
1/5 · Sehr gering
Noch keine besonderen Sicherheitshinweise.
Häufig gestellte Fragen
Wie identifiziert man Alaskan Fritillary?
Der einfachste Weg, Alaskan Fritillary zu bestimmen, ist die Verwendung der Naturführer-App Snappit.
Was ist der/die/das länge von Alaskan Fritillary?
1-2 cm
Was ist der/die/das flügelspannweite von Alaskan Fritillary?
3-5 cm
Was ist der/die/das gewicht von Alaskan Fritillary?
0.0001-0.0003 kg
Was ist der/die/das lebenserwartung von Alaskan Fritillary?
1-2 Jahre
Was ist der/die/das top Speed von Alaskan Fritillary?
15 km/h
Was frisst Alaskan Fritillary?
As caterpillars, they feed exclusively on the leaves of low-growing arctic willows, while adults consume nectar from various tundra wildflowers.
Wo findet man Alaskan Fritillary normalerweise?
Found in harsh alpine tundra, gravelly scree slopes, and moist arctic meadows, closely tied to areas where dwarf willows grow.
Snap-Karte
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Neueste Snaps
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