Haida ermine | |
---|---|
In winter coat | |
Vulnerable (NatureServe) (for both celenda and seclusa subspecies; species as whole unranked) [2] [3] [4] | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Carnivora |
Family: | Mustelidae |
Genus: | Mustela |
Species: | M. haidarum |
Binomial name | |
Mustela haidarum Preble, 1898 | |
Subspecies | |
M. h. haidarumPreble, 1898 Contents | |
Synonyms | |
|
The Haida ermine (Mustela haidarum) is a mustelid species endemic to a few islands off the Pacific Northwest of North America, namely Haida Gwaii in Canada and the southern Alexander Archipelago in the U.S. state of Alaska. [5]
In the Haida language, this species is known as daayáats’ in its brown summer coat and tlag in its winter coat. [6]
The three subspecies of the Haida ermine were originally considered subspecies of the common stoat ( M. erminea ). However, in 2013, they were recognized as distinct from any other ermine, and a 2021 study further found them to comprise a distinct species. M. haidarum is thought have originated about 375,000 years ago (during the Pleistocene), and is thought to be the result of ancient hybrid speciation between the Beringian ermine (M. erminea) and American ermine (M. richardsonii). The islands are thought to have been glacial refugia during the Last Glacial Maximum, with both species of ermine being isolated on the islands and hybridizing with one another, while the ice sheets separated them from the rest of the world—thus leading to the formation of a new species. [7] [8] [9] [10] It is recognized as a distinct species by the American Society of Mammalogists. [5]
The species is found on a few islands off the coast of British Columbia and southeast Alaska. In Canada, it is found on the Haida Gwaii archipelago in Graham and Moresby islands, while in Alaska it is found on Prince of Wales Island and possibly Suemez Island. [7] It is found in a temperate rainforest habitat.
Aside from genetic differences, M. haidarum can be distinguished from M. erminea and M. richardsonii by its elongated skull. [10]
Three subspecies are thought to exist. [7]
Subspecies | Trinomial authority | Description | Range | Synonyms |
---|---|---|---|---|
Haida ermine (previously the Queen Charlotte Islands stoat or Haida stoat) [11] M. h. haidarum | Preble, 1898 | Smallest size of 20 ermine subspecies in North America. The colour of its summer coat is mostly chocolate brown. During the winter, the Ermine is all white with a black tipped tail, despite lesser snow coverage throughout lower elevations on Haida Gwaii. [12] | Haida Gwaii | Mustela erminea haidarum |
Prince of Wales Island ermine M. h. celenda | Hall, 1944 | Prince of Wales Island | Mustela erminea celenda | |
Suemez Island ermine M. h. seclusa | Hall, 1944 | Suemez Island | Mustela erminea seculsa |
The habitat for the Haida ermine has been intensively reduced over the past few centuries due to old-growth timber harvest in the Tongass National Forest, an important protected area for the species, as well as industrial-scale mining on the islands, which disproportionately affects insular endemics such as M. haidarum. Expanding human populations and increasing tourism may increase the risk of pathogen spillover to M. haidarum, including pathogens common to pets such as canine distemper and parvoviruses, which have negatively impacted other wild mustelids. Due to the rudimentary understanding of the true level of endemism in these northern archipelagos, these threats must be better quantified to protect species from them. The Pacific martens (M. caurina) inhabiting Haida Gwaii also represent a distinct lineage from other populations, indicating that the habitat of the islands may have allowed other distinct species or subspecies to evolve. [7] [10] [13]
The Haida ermine traverse their environment with quick momentum from their small legs. They root around in search of holes and crevices often scouting their surroundings on their hind legs. They hunt in short periods often in ten to fourteen minute increments up to four hours, interchanging between break periods every three to five hours of the day. They typically hunt prey that are several times their own weight by precise lunges at the neck. Except for rabbits which have too much fur around their neck for the bite to penetrate but instead are gripped at the nape and scratched with their hind legs. Haida ermine are known to lick the blood created by them off their prey first. They kill when given the chance and store what isn't required at the time in their nests.
Weasels are mammals of the genus Mustela of the family Mustelidae. The genus Mustela includes the least weasels, polecats, stoats, ferrets, and European mink. Members of this genus are small, active predators, with long and slender bodies and short legs. The family Mustelidae, or mustelids, is often referred to as the "weasel family". In the UK, the term "weasel" usually refers to the smallest species, the least weasel (M. nivalis), the smallest carnivoran species.
The stoat, also known as the Eurasian ermine or ermine, is a species of mustelid native to Eurasia and the northern regions of North America. Because of its wide circumpolar distribution, it is listed as Least Concern on the IUCN Red List. The name ermine is used especially, in its pure white winter coat of the stoat or its fur. Ermine fur was used in the 15th century by Catholic monarchs, who sometimes used it as the mozzetta cape. It has long been used on the ceremonial robes of members of the United Kingdom House of Lords. It was also used in capes on images such as the Infant Jesus of Prague.
The Tongass National Forest in Southeast Alaska is the largest U.S. National Forest at 16.7 million acres. Most of its area is temperate rain forest and is remote enough to be home to many species of endangered and rare flora and fauna. The Tongass, which is managed by the United States Forest Service, encompasses islands of the Alexander Archipelago, fjords and glaciers, and peaks of the Coast Mountains. An international border with Canada runs along the crest of the Boundary Ranges of the Coast Mountains. The forest is administered from Forest Service offices in Ketchikan. There are local ranger district offices located in Craig, Hoonah, Juneau, Ketchikan, Petersburg, Sitka, Thorne Bay, Wrangell, and Yakutat.
Haida Gwaii, also known as the Queen Charlotte Islands, is an archipelago located between 55–125 km (34–78 mi) off the northern Pacific coast of Canada. The islands are separated from the mainland to the east by the shallow Hecate Strait. Queen Charlotte Sound lies to the south, with Vancouver Island beyond. To the north, the disputed Dixon Entrance separates Haida Gwaii from the Alexander Archipelago in the U.S. state of Alaska.
The European mink, also known as the Russian mink and Eurasian mink, is a semiaquatic species of mustelid native to Europe.
The Sitka deer or Sitka black-tailed deer is a subspecies of mule deer, similar to the Columbian black-tailed subspecies. Their name originates from Sitka, Alaska, and it is not to be confused with the similarly named sika deer. Weighing in on average between 48 and 90 kg, Sitka deer are characteristically smaller than other subspecies of mule deer. Reddish-brown in the summer, their coats darken to a gray-brown in mid- to late August. They are also good swimmers, and can occasionally be seen crossing deep channels between islands. Their average lifespan is about 10 years, but a few are known to have attained an age of 15.
Gwaii Haanas National Park Reserve, National Marine Conservation Area, and Haida Heritage Site, usually referred to simply as Gwaii Haanas, is located in southernmost Haida Gwaii, 130 kilometres off the mainland of British Columbia, Canada. Gwaii Haanas protects an archipelago of 138 islands, the largest being Moresby Island and the southernmost being Kunghit Island. "Gwaii Haanas" means "Islands of Beauty" in X̱aayda kíl, a southern dialect of the Haida language.
The Colombian weasel, also known as Don Felipe's weasel, is a very rare species of weasel only known with certainty from the departments of Huila and Cauca in Colombia and nearby northern Ecuador. Both its scientific and alternative common name honours the mammalogist Philip "Don Felipe" Hershkovitz.
The Dawson's caribou, also known as the Queen Charlotte Islands caribou was a population of woodland caribou that once lived on Graham Island, the largest of the islands within the Haida Gwaii archipelago, located off the coast of British Columbia, Canada.
The Guadeloupe raccoon is a common raccoon subspecies endemic to the two main islands of Guadeloupe in the Lesser Antilles.
The Burmese whiskered myotis or Burmese whiskered bat is a species of vesper bat. It is found in China, India, Myanmar, Laos, and Vietnam.
The Haida Gwaii black bear, also known as the Queen Charlotte Islands black bear, is a morphologically distinct subspecies of the American black bear.
The Egyptian weasel is a unique population of the least weasel endemic to northern Egypt. It is listed as Least Concern on the IUCN Red List. It was formerly considered a distinct species, as Mustela subpalmata.
Ermine may refer to three species of mustelid in the genus Mustela, or their fur:
The Pacific marten is a species of North American mammal, a member of the family Mustelidae. It is found throughout western North America.
Neogale is a genus of mustelid native to the Americas, ranging from Alaska south to Bolivia. Members of this genus are known as New World weasels.
The American ermine or American stoat is a species of mustelid native to most of North America.
The Socotran pipistrelle or Lanza's pipistrelle is an endangered species of vesper bat in the family Vespertilionidae. It is endemic to Socotra Island in Yemen, and is the only mammal thought to be endemic to the island.
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