The northwestern wolf (Canis lupus occidentalis), also known as the Mackenzie Valley wolf,[5] Alaskan timber wolf,[6] or Canadian timber wolf,[7] is a subspecies of gray wolf in western North America. Arguably the largest gray wolf subspecies in the world, it ranges from Alaska, the upper Mackenzie River Valley; southward throughout the western Canadian provinces, aside from prairie landscapes in its southern portions, as well as the Northwestern United States.[6]
This wolf is recognized as a subspecies of Canis lupus in the taxonomic authority Mammal Species of the World (2005).[8] The subspecies was first written of by Scottish naturalist Sir John Richardson in 1829. He chose to give it the name occidentalis in reference to its geographic location rather than label it by its color, as it was too variable to warrant such.[2]
According to one source, phylogenetic analyses of North American gray wolves show that there are three clades corresponding to C. l. occidentalis, C. l. nubilus and C. l. baileyi, each one representing a separate invasion into North America from distinct Eurasian ancestors. C. l. occidentalis, the most northwestern subspecies, is descended from the last gray wolves to colonize North America. It likely crossed into North America through the Bering land bridge after the last ice age, displacing C. l. nubilus populations as it advanced, a process which has continued until present times. Along with C. l. nubilus, C. l. occidentalis is the most widespread member of the four gray wolf subspecies in North America, with at least six different synonyms.[7]
Northwestern wolves are one of the largest subspecies of wolves. In British Columbia, Canada, five adult females averaged 42.5 kg or 93.6 lbs with a range of 85 lbs to 100 lbs (38.6 - 45.4 kg) and ten adult males averaged 112.2 lbs or 51.7 kg with a range of 105 lbs to 135 lbs (47.6 - 61.2 kg), with a weight range for all adults of 38.6 kg to 61.2 kg (85 - 135 lbs).[9] In Yellowstone National Park, adult females were average about 40 kg (90 lbs) and adult males average about 50 kg (110 lbs), with a mean adult body mass in winter of 46.4 kg (102 lb).[10][11] More recent studies have reported the average range of height and weight in the north-west of the United States, both sexes were between 68 and 91.5 cm (26.8 and 36.0 in) tall at the shoulder. Here the weight of males was reported at between 45 and 72 kg (99 and 159 lb), while the females were reported at 36 to 60 kg (79 to 132 lb).[12]
The Northwestern wolf is also one of the longest wolf subspecies, as its length usually ranges from 5 to 6 ft (152-183 cm) and can reach as long as 7 ft (213 cm).[13][14]
In comparison, the mean adult weights of its nearest rivals in size, the Eurasian wolf (C. l. lupus) and the Interior Alaskan wolf (C. l. pambasileus), was reported as 39 kg (86 lb) and 40 kg (88 lb), respectively.[15][16] Sir John Richardson described the northwestern wolf as having a more robust build than the Eurasian wolf, with a larger, rounder head and a thicker, more obtuse muzzle. Its ears are also shorter, and its fur bushier.[2]
In Yellowstone National Park, artificially relocated northwestern wolves have been well-documented feeding on elk. They usually stampede the herd using pack teamwork to separate the younger elk from the adults. They also will charge young calves separated from their parents. Winter-weakened or sick elk also play an important part of Yellowstone wolf diets, and it is estimated that over 50 percent of winter-weakened or sick elk in Yellowstone are killed by wolves. Of these, about 12 percent of carcasses were scavenged by other predators, including ravens, bald eagles, black bears, grizzly bears, and coyotes.[17] In the same national park, wolves also prey on bison, though such attacks usually involve sick animals or calves because healthy, adult bison can easily kill wolves with their hooves.[18]
Wolves are present in Canadian and British safari parks including Longleat,[19] Woburn,[20] and Parc Omega.[21]
The findings and conclusions in this article are those of the author(s) and do not necessarily represent the views of the U.S. Fish and Wildlife Service.
Lunette pada Sistine Chapel di mana tertera nama Salmon bersama Boas dan Obed. Salmon atau Salma adalah seorang yang disebut dalam Alkitab Ibrani dan Perjanjian Lama di Alkitab Kristen. Ia adalah salah satu anak dari Nahason dari suku Yehuda dan isterinya yang tidak diketahui namanya. Ia dan istrinya, Rahab, mempunyai seorang putra bernama Boas.[1] Salmon / Salma dikatakan sebagai bapa Betlehem,[2][3] dan Betlehem disebut sebagai kota Daud, cucunya.[4][5] …
2011 studio album by Chelsea GrinMy DamnationStudio album by Chelsea GrinReleasedJuly 19, 2011RecordedJanuary 13 – February 15, 2011StudioPlanet Z Studios, Hadley, MassachusettsGenreDeathcore[1]Length35:00LabelArteryProducerChris Zeuss HarrisChelsea Grin chronology Desolation of Eden(2010) My Damnation(2011) Evolve(2012) Singles from My Damnation My DamnationReleased: April 19, 2011[2] Alternative cover My Damnation is the second studio album by American deathcore b…
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1949-1951 U.S. Congress 81st United States Congress80th ←→ 82ndUnited States Capitol (1956)January 3, 1949 – January 3, 1951Members96 senators435 representatives3 non-voting delegatesSenate majorityDemocraticSenate PresidentVacant (until January 20, 1949)Alben W. Barkley (D) (from January 20, 1949)House majorityDemocraticHouse SpeakerSam Rayburn (D)Sessions1st: January 3, 1949 – October 19, 19492nd: January 3, 1950 – January 2, 1951 The 81st United States Congress was a …
هذه المقالة يتيمة إذ تصل إليها مقالات أخرى قليلة جدًا. فضلًا، ساعد بإضافة وصلة إليها في مقالات متعلقة بها. (يوليو 2019) روبن غانت معلومات شخصية الميلاد 12 أبريل 1952 (71 سنة) تلسا مواطنة الولايات المتحدة الوزن 230 رطل الحياة العملية المدرسة الأم جامعة ولاية أوكلاهوما …
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American telecommunications company Atlantic Broadband redirects here. For the unrelated provider formerly known as Atlantic Tele-Network, see ATN International. Cogeco US Finance, LLCTrade nameBreezelineFormerlyAtlantic Broadband(2004–2022)TypeSubsidiaryIndustryTelecommunicationsPredecessorMetrocastG-Force CableCharter CommunicationsWOW! (Ohio Systems)Founded2004; 19 years ago (2004), as spin-off of Charter CommunicationsHeadquartersQuincy, Massachusetts, USAArea servedOhioN…
WZMEBridgeport, Connecticut/New York City, New YorkAmerika SerikatKotaBridgeport, ConnecticutSaluranDigital: 42 (UHF)Virtual: 43 (PSIP)BrandingMe-TV New YorkPemrogramanSubkanal43.1 Me-TV/Independen43.2 RTVAfiliasiMe-TVKepemilikanPemilikNRJ TV, LLC (operated by Titan TV Broadcast Group) (NRJ TV NY License Co., LLC)RiwayatDidirikan20 November, 1980Siaran perdana28 September, 1987Bekas tanda panggilWICC-TV (1953–1960)WBCT-TV (1987–1988)WHAI-TV (1988–1998)WIPX (1998)WBPT (1998–1999)WSAH (199…
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Italian actor, playwright, artist, and poet Remo RemottiBorn(1924-11-16)16 November 1924Rome, ItalyDied21 June 2015(2015-06-21) (aged 90)Rome, ItalyOccupation(s)Actor, playwright, artistHeight1.73 m (5 ft 8 in) Remo Remotti (16 November 1924 – 21 June 2015) was an Italian actor, playwright, artist and poet. Life and career Born in Rome, Remotti lost his father at 12 years old, then after graduating in Law he moved to Perù, where he attended an art school and began painting…
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List of events ← 2022 2021 2020 2023 in Malta → 2024 2025 2026 Decades: 2000s 2010s 2020s See also: History of Malta List of years in Malta Events in the year 2023 in Malta. Incumbents From To Position Incumbent Picture 2019 Current President of Malta George Vella 2020 Current (Re-elected in 2022[1]) Prime Minister of Malta Robert Abela Deaths 3 January: Silvio Parnis, 57, politician, MP (1998–2022)[2] 5 April: Anne Agius Ferrante, 97, politician, MP (1980–1981)…
Village development committee in Lumbini Zone, Nepal Village development committee in Lumbini Zone, NepalSwathi स्वातीVillage development committeeSwathiLocation in NepalCoordinates: 27°35′N 83°39′E / 27.58°N 83.65°E / 27.58; 83.65Country NepalZoneLumbini ZoneDistrictNawalparasi DistrictPopulation (1991) • Total9,982Time zoneUTC+5:45 (Nepal Time) Swathi is a town in Parasi District in the Lumbini Zone of southern Nepal…
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