Oarisma poweshiek

Last updated

Contents

Oarisma poweshiek
Oarisma poweshiek.jpg
Status TNC G1.svg
Critically Imperiled  (NatureServe)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Hesperiidae
Genus: Oarisma
Species:
O. poweshiek
Binomial name
Oarisma poweshiek
(Parker, 1870) [1]
Synonyms [2]
  • Hesperia powesheik
  • Thymelicus powesheik

Oarisma poweshiek, the Poweshiek skipperling, [3] is a North American butterfly in the family Hesperiidae (skippers), subfamily Hesperiinae (grass skippers). The range of this species in Canada is restricted to southeastern Manitoba, and in the United States it historically ranged from the Dakotas to the southern Lower Peninsula of Michigan. [4]

Description

Coloured dark brown on the upperside with an orange along the costa. The underside of the hindwings are dark grey with white veins. [4]

Wingspan is from 24 to 30 mm. [4]

Behaviour

The Poweshiek skipperling emerges in late June or early July and exists in the adult form for approximately a two-week period. During this time the skipperling nectars on a suite of flowers, mates and lays eggs. The larvae feed on graminoid plant species that possibly vary throughout the distribution of this species. [4]

Conservation status

The Poweshiek skipperling was a common prairie butterfly prior to 2005, but suffered a population crash between 2005 and 2015. The Poweshiek skipperling has a NatureServe ranking of G1 or critically imperiled. [5] It is threatened by degradation and modification of its native prairie habitat by overgrazing, invasive species, and conversion to cropland. [6] This species was awarded endangered status under the United States Endangered Species Act in 2014 [6] after gaining candidate status in 2011. [7] The Poweshiek skipperling was assessed as threatened by Committee on the Status of Endangered Wildlife in Canada (COSEWIC) in 2003, then, in 2005, the species was added to Schedule 1 with the status threatened under the Species at Risk Act (SARA), in Canada. In 2014, the species was reassessed as endangered by COSEWIC. [8] In February 2019, the SARA status was changed to endangered. [9]

In 2018, the Minnesota zoo began efforts to rear them in captivity, for release in the wild. [10] [11] In 2022, the Minnesota zoo released over 100 individuals in to the wild. [12]

Related Research Articles

<span class="mw-page-title-main">Conservation status</span> Indication of the chance of extinction

The conservation status of a group of organisms indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservation status: not simply the number of individuals remaining, but the overall increase or decrease in the population over time, breeding success rates, and known threats. Various systems of conservation status are in use at international, multi-country, national and local levels, as well as for consumer use such as sustainable seafood advisory lists and certification. The two international systems are by the International Union for Conservation of Nature (IUCN) and The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).

<span class="mw-page-title-main">Eastern massasauga</span> Species of snake (rattlesnake; Sistrurus catenatus)

The eastern massasauga is a rattlesnake species found in central and eastern North America from southern Ontario in Canada and throughout the Midwestern and Eastern United States. Like all rattlesnakes, it is a pit viper and is venomous; it is the only species of venomous snake in Ontario.

<i>Euchloe ausonides insulana</i> Subspecies of butterfly

Euchloe ausonides insulanus, the island marble butterfly, is a subspecies of the Euchloe ausonides and is found in the San Juan Islands in Washington in the northwestern United States. The butterfly was thought to be extinct and was last observed on Gabriola Island, British Columbia in 1908. The species was rediscovered during a prairie butterfly survey in San Juan Island National Historical Park in 1998. After this rediscovery, surveys were conducted throughout the presumed range and found a few populations on San Juan Island and Lopez Island, but no remaining populations in Canada.

<i>Cicuta maculata</i> Species of plant

Cicuta maculata is a highly poisonous species of flowering plant in the carrot family known by several common names, including spotted water hemlock, spotted parsley, spotted cowbane, and the suicide root by the Iroquois. It is native to nearly all of North America, from northern Canada to southern Mexico.

<i>Hesperia dacotae</i> Species of butterfly

Hesperia dacotae, the Dakota skipper, is a small to medium-sized North American butterfly. It has a wingspan of approximately one inch and the antennae form a hook. The male's wings are a tawny-orange to brown on the forewings with a prominent mark and dusty yellow on the lower part of the wing. The female wing is a darker brown orange and white spots on the forewing margin.

<i>Hibiscus moscheutos</i> Species of aquatic plant

Hibiscus moscheutos, the rose mallow, swamp rose-mallow, crimsoneyed rosemallow, or eastern rosemallow, is a species of flowering plant in the family Malvaceae. It is a cold-hardy perennial wetland plant that can grow in large colonies. The hirsute leaves are of variable morphology, but are commonly deltoidal in shape with up to three lobes. It is found in wetlands and along the riverine systems of the eastern United States from Texas to the Atlantic states, its territory extending northward to southern Ontario.

<span class="mw-page-title-main">Peary caribou</span> Subspecies of deer

The Peary caribou is a subspecies of caribou found in the High Arctic islands of Nunavut and the Northwest Territories in Canada. They are the smallest of the North American caribou, with the females weighing an average of 60 kg (130 lb) and the males 110 kg (240 lb). In length the females average 1.4 m and the males 1.7 m.

<span class="mw-page-title-main">Fauna of Canada</span> Native animals of Canada

The fauna of Canada consist of approximately 200 mammal species, over 460 native bird species, 43 amphibian species, 43 reptile species, and 1,200 fish species. The biology survey of Canada cites that there are approximately 55,000 species of insects, and 11,000 species of mites and spiders.

<span class="mw-page-title-main">Tallgrass Aspen Parkland</span> Ecoregion spanning parts of Manitoba and Minnesota

The Tallgrass Aspen Parkland is an ecoregion located in southeastern Manitoba and northwestern Minnesota. The area is characterized by a mosaic of habitat types, including tallgrass prairie, aspen woodland, sedge meadow wetlands, riparian woodland, and oak savanna. A number of endangered and threatened species occur in the area, including the western prairie fringed orchid and Dakota skipper. One of Minnesota's only wild elk herds utilizes the area as well.

The Committee on the Status of Endangered Wildlife in Canada is an independent committee of wildlife experts and scientists whose "raison d'être is to identify species at risk" in Canada. It designates the conservation status of wild species.

<i>Cypripedium candidum</i> Species of orchid

Cypripedium candidum, known as the small white lady's slipper or white lady's slipper, is a rare orchid of the genus Cypripedium. It is native to eastern North America across the northern United States and southern Canada.

<span class="mw-page-title-main">Big Stone National Wildlife Refuge</span> National wildlife refuge in Minnesota, United States

Straddling the headwaters of the Minnesota River in west-central Minnesota, Big Stone National Wildlife Refuge is within the heart of the tallgrass prairie's historic range. Today, less than one-percent of tallgrass prairie remains.

<i>Erynnis martialis</i> Endangered species of butterfly

Erynnis martialis, commonly known as the mottled duskywing, is a species of butterfly in the family Hesperiidae. It is found in most of the eastern United States and in southern Ontario, and southeastern Manitoba. It is listed as a species of special concern and believed extirpated in the US state of Connecticut.

<i>Polites mardon</i> Species of butterfly

Polites mardon, the Mardon skipper, is a butterfly native to the United States northwest coast.

<i>Oarisma garita</i> Species of butterfly

Oarisma garita, the Garita skipperling, western skipperling or Garita skipper, is a North American butterfly in the family Hesperiidae (skippers), subfamily Hesperiinae . This skipper ranges southeastern Manitoba to British Columbia and south through the American Midwest as far south as Mexico. Its habitats include dry or moist prairies, open woodlands, and limestone outcrops.

<i>Euphyes dukesi</i> Species of butterfly

Euphyes dukesi, or Dukes' skipper, is a butterfly of the family Hesperiidae. It lives in the eastern United States and in a small portion of southern Ontario, Canada, in three distinct populations. Preferred habitats are shaded wetlands, with various species of sedge plants it uses as host plants for its larvae.

<i>Carex lacustris</i> Species of grass-like plant

Carex lacustris, known as lake sedge, is a tufted grass-like perennial of the sedge family (Cyperaceae), native to southern Canada and the northern United States. C. lacustris us an herbaceous surface-piercing plant that grows in water up to 50 cm (1.6 ft) deep, and grows 50–150 cm (1.6–4.9 ft) tall. It grows well in marshes and swampy woods of the boreal forest, along river and lake shores, in ditches, marshes, swamps, and other wetland habitat. It grows on muck, sedge peat, wet sand or silt, in filtered or full sunlight.

<i>Lespedeza virginica</i> Species of legume

Lespedeza virginica, known as slender bush clover or slender lespedeza, is a species of flowering plant native to much of the United States, as well as Ontario, Canada, and Nuevo León, Mexico. It is a member of the bean family, Fabaceae.

<i>Braya pilosa</i> Species of flowering plant

Braya pilosa is a long-lived perennial flowering plant of the mustard family known by the common name hairy braya. It was first found by Sir John Richardson in 1826 during an expedition in search of the Northwest Passage. It wasn't found for 154 years, between 1850 and 2004.

References

  1. Parker, H. W. 1870. A new Hesperian. The American Entomologist and Botanist 2:271-272.
  2. Oarisma, funet.fi
  3. Koerth, Maggie (December 15, 2022). "The Butterfly Effect". FiveThirtyEight. Retrieved December 16, 2022.
  4. 1 2 3 4 Poweshiek Skipperling, Butterflies of Canada
  5. Comprehensive Report Species - Oarisma poweshiek. (n.d.) NatureServe http://www.natureserve.org.
  6. 1 2 U.S. Fish and Wildlife Service. 2014, October 24. Endangered and Threatened Wildlife and Plants; Threatened Species Status for Dakota Skipper and Endangered Species Status for Poweshiek Skipperling. Federal Register.
  7. U.S. Fish and Wildlife Service. 2011, October 26. Endangered and Threatened Wildlife and Plants; Review of Native Species That Are Candidates for Listing as Endangered or Threatened; Annual Notice of Findings on Resubmitted Petitions; Annual Description of Progress on Listing Actions. Federal Register.
  8. COSEWIC. 2014. COSEWIC assessment and status report on the Poweshiek SkipperlingOarisma poweshiekin Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. xi + 43 pp.(www.registrelep-sararegistry.gc.ca/default_e.cfm).
  9. Department of Environment and Natural Resources of Canada. (n.d.). Poweshiek Skipperling (Oarisma poweshiek) - Species search - Species at risk registry. https://species-registry.canada.ca/index-en.html#/species/796-333.
  10. "Saving Prairie Butterflies".
  11. "FLITTING AWAY", Kieth Methney, The Detroit Free Press, July 13, 2018, page A1
  12. "Minnesota Zoo on Instagram: "This little one is a Poweshiek skipperling- one of the most endangered animals on the planet. This summer, #MNZoo researchers released over 100 individuals to help save this species from extinction. There are likely fewer than 500 individuals left in the wild. 🦋💚"". Instagram. Retrieved August 21, 2022.

Further reading