Wolf (Canis lupus)

[ashurGiga]

Some informations about wolves average weight from various places:
Canada:
-       High Arctic
Data 1 is literature (whatever that means):
·       Males (n=2) average weight≈ 36,2kg.
·       Females (n=1) average weight≈30,8kg.
Source: Geographic Variation in Skull Morphology of the Wolf (Canis lupus)
in Relation to Prey Size across North America, by John Dawson Ketchen.
Data 2:
·       Males (n=2) average weight≈ 38,5kg. The weights were 43kg and 34kg.
·       Females (n=2) average weight≈24,2kg. The weights were 24,9kg and 23,5kg.
Source: The High Arctic Wolf in the Jones Sound Region of the Canadian High Arctic
 
-       Baffin/northeastern Kivalliq Regions
Data 1 :
·       Males (n=18) average weight≈ 31,23kg.
·       Females (n=9) average weight≈27,87kg.
Source: Geographic Variation in Skull Morphology of the Wolf (Canis lupus)
in Relation to Prey Size across North America, by John Dawson Ketchen.
 
-       East-central Kivalliq Region
Data 1 :
·       Males (n=14) average weight≈ 33,8kg.
·       Females (n=18) average weight≈27,77kg.
Source: Geographic Variation in Skull Morphology of the Wolf (Canis lupus)
in Relation to Prey Size across North America, by John Dawson Ketchen.
 
-       Southeastern Kivalliq Region
Data 1 :
·       Males (n=6) average weight≈ 36,9kg.
·       Females (n=6) average weight≈28,84kg.
Source: Geographic Variation in Skull Morphology of the Wolf (Canis lupus)
in Relation to Prey Size across North America, by John Dawson Ketchen.
 
-       Northwest Territories
Data 1 (Kitikmeot & west Kivalliq Regions, Nunavut; North Slave Region, Northwest Territories
):
·       Males (n=7) average weight≈ 42,14kg.
·       Females (n=14) average weight≈33,46kg.
Source: Geographic Variation in Skull Morphology of the Wolf (Canis lupus)
in Relation to Prey Size across North America, by John Dawson Ketchen.
Data 2 :
·       Males (n=18) average weight≈ 44,45kg. Heaviest 52,62kg, lightest 40,82kg.
·       Females (n=21) average weight≈38,56kg. Heaviest 49,9kg, lightest 31,75kg.
Data 3 :
·       Males (n=80) average weight≈ 44kg. Heaviest 60,33kg, lightest 28,58kg.
·       Females (n=66) average weight≈37,65kg. Heaviest 53,98kg, lightest 22,68kg.
Source for both: the Wolf, by L David Mech.
-       Inuvik region
Data 1 :
·       Males (n=5) average weight≈ 41,4kg.
·       Females (n=4) average weight≈38,75kg.
Source: Geographic Variation in Skull Morphology of the Wolf (Canis lupus)
in Relation to Prey Size across North America, by John Dawson Ketchen.
 
-       British Columbia
Data 1 :
·       Males (n=11) average weight≈ 52,62kg. Heaviest 64kg, lightest 30kg.
·       Females (n=12) average weight≈36,9kg. Heaviest 56,8kg, lightest 24kg.
Source: Wolf predation risk to moose in north-central British Columbia, by Morgan Anderson, Matt Scheideman & Shelley Marshall.
Data 2 (Vancouver) :
·       Males (n=4) average weight≈ 36,18kg. Heaviest 38,6kg, lightest 32,7kg.
·       Females (n=3) average weight≈30,47kg. Heaviest 31,8kg, lightest 28,2kg.
Source: The Vancouver Island wolf (canis lupus crassodon) an initial study of food habits and social organization, by Barbara Mary Victoria Scott.
 
-       Wood Buffalo National Park & Northern Alberta
Data 1 :
·       Males (n=17) average weight≈ 43,83kg.
·       Females (n=10) average weight≈38,73kg.
Data 2 is literature (whatever that means):
·       Males (n=3) average weight≈ 49kg.
·       Females (n=5) average weight≈36,8kg.
Source for both: Geographic Variation in Skull Morphology of the Wolf (Canis lupus)
in Relation to Prey Size across North America, by John Dawson Ketchen.
 
-       Alberta and Jasper & Banff National Parks
Data 1 :
·       Males (n=7) average weight≈ 46,34kg.
Data 2 is literature (whatever that means):
·       Males (n>70) average weight≈ 50kg.
·       Females (n>60) average weight≈40kg.
Source for both: Geographic Variation in Skull Morphology of the Wolf (Canis lupus) in Relation to Prey Size across North America, by John Dawson Ketchen.
Data 3 are the wolves introduced to Yellowstone National Park in 1995 & 1996:
·       Males (n=8) average weight≈ 50,69kg. Heaviest 58,97kg, lightest 34kg.
·       Females (n=7) average weight≈47,50kg. Heaviest 52,16kg, lightest 40,37kg.
Data 4 :
·       Mixed/not specified sexes (n=31) average weight≈ 48kg. Heaviest 68kg, lightest 35kg.
Source: Wolf ecology and caribou-primary prey-wolf spatial relationships in low productivity peatland complexes in northeastern Alberta, by Andrew David MacDuff Latham.
 
-       Manitoba & Saskatchewan
Data 1 (Prince Albert National Park, Saskatchewan):
·       Males (n=10) average weight≈ 48,45kg.
·       Females (n=9) average weight≈35,63kg.
Source: Geographic Variation in Skull Morphology of the Wolf (Canis lupus)
in Relation to Prey Size across North America, by John Dawson Ketchen.
Data 2 literature:
·       Males (n=?) average weight≈ 42,18kg.
Source: SUMMARY OF THE LARGE WOLVES OF CANADA, WITH
DESCRIPTION OF THREE NEW ARCTIC RACES, BY RUDOLPH MARTIN ANDERSON.
Data 3 (Riding Mountain National Park, Manitoba):
·       Males (n=42) average weight≈ 45,95kg. Heaviest 53kg, lightest 36kg.
·       Females (n=54) average weight≈38,76kg. Heaviest 48kg, lightest 31kg.
Data 4 (Riding Mountain National Park, Manitoba):
·       Males (n=8) average weight≈ 39kg. Heaviest 43kg, lightest 34kg.
·       Females (n=12) average weight≈35,62kg. Heaviest 43,1kg, lightest 31,7kg.
Source for both: Wolf body mass, skull morphology, and mitochondrial DNA haplotypes in the Riding Mountain National Park region of Manitoba, Canada, by Astrid V. Stronen, Graham J Forbes, Tim Sallows, Gloria Goulet, Marco Musiani and Paul C. Paquet.
 
-       Northern Ontario – Kenora, Rainy River, Thunder Bay, Cochrane, Algoma Districts
Data 1 is literature (whatever that means):
·       Males (n>1040?) average weight≈ 35,27kg.
·       Females (n>980?) average weight≈28,98kg.
Note: I put ? for the samples because I found these numbers really weird
Source: Geographic Variation in Skull Morphology of the Wolf (Canis lupus)
in Relation to Prey Size across North America, by John Dawson Ketchen.
 
-       Ontario (could be Eastern wolves here)
Data 1 :
·       Males (n=40) average weight≈ 27,67kg. Heaviest 36,74kg, lightest 19,5kg.
·       Females (n=33) average weight≈24,49kg. Heaviest 31,75kg, lightest 17,69kg.
Source: the Wolf, by L David Mech.
 
-       South-Central Ontario – Nipissing and southern Sudbury Districts Algonquin Provincial Park (could be Eastern wolves here)
Data 1 is literature (whatever that means):
·       Males (n=129) average weight≈ 27,50kg.
·       Females (n=112) average weight≈23,50kg.
Source: Geographic Variation in Skull Morphology of the Wolf (Canis lupus)
in Relation to Prey Size across North America, by John Dawson Ketchen.
 
Alaska & Yukon (Canadian and American part):
-       Alaska
Data 1 :
·       Males (n=60) average weight≈ 38,56kg. Heaviest 50,8kg, lightest 27,22kg.
·       Females (n=50) average weight≈32,2kg. Heaviest 37,19kg, lightest 24,94kg.
Data 2 :
·       Males (n=6) average weight≈ 40,82kg. Heaviest 50,8kg, lightest 29kg.
·       Females (n=9) average weight≈30,39kg. Heaviest 36,29kg, lightest 22,68kg.
Data 3 :
·       Males (n=24) average weight≈ 40,82kg. Heaviest 51,7kg, lightest 32,66kg.
·       Females (n=20) average weight≈32,66kg. Heaviest 42,18kg, lightest 24,95kg.
Source for all: the Wolf, by L David Mech.
 
-       Yukon-Charley Rivers National Preserve
Data 1, I don’t know the exact number of males and females but the total sample is 179 wolves:
·       Males (n=?) average weight≈ 50,35 kg.
·       Females (n=?) average weight≈44kg.
Source: Alaska department of Fish and Game: https://www.adfg.alaska.gov/index.cfm?ad...les_id=503
 
-       Denali National Park and Preserve
Data 1 :
·       Males (n=?) average weight≈ 47,63kg.
·       Females (n=?) average weight≈39,92kg.
Source: Alaska department of Fish and Game: https://www.adfg.alaska.gov/index.cfm?adfg=wildlifenews.view_article&articles_id=503 & National Park service: https://www.nps.gov/dena/learn/nature/wo...0%20pounds!
 
-       Yukon including the Canadian part
Data 1 :
·       Males (n=10) average weight≈ 42,35kg.
·       Females (n=5) average weight≈33,92kg.
Data 2 is literature (whatever that means):
·       Males (n=57) average weight≈ 45,45kg.
·       Females (n=73) average weight≈37,50kg.
Source for both: Geographic Variation in Skull Morphology of the Wolf (Canis lupus)
in Relation to Prey Size across North America, by John Dawson Ketchen.
 
-       Northwestern Alaska
Data 1:
·       Males (n=23 adults & n=8 yearlings) average weight≈ 47,3 kg for adults and 46,2kg for yearlings.
·       Females (n=17 adults & n=9 yearlings) average weight≈42,2kg for adults and 41,9kg for yearlings.
Source: Ecology of Wolves in Relation to a Migratory Caribou Herd in Northwest Alaska, Authors: Warren B. Ballard, Lee Anne Ayres, Paul R. Krausman, Daniel J. Reed andSteven G. Fancy.
 
United States:
-       Yellowstone National Park
Data 1:
·       Males average weight≈ 50kg.
·       Females average weight≈41kg.
Source: National Park service: https://www.nps.gov/articles/yellowstone-wolf-facts.htm
 
-       Minnesota
Data 1:
·       Males (n=3) average weight≈ 32,53kg.
·       Females (n=4) average weight≈26,55kg.
Source: Ecology of the Timber Wolf in Northeastern Minnesota, Authors: Victor Van Ballenberghe, Albert W. Erickson and David Byman.
Data 2:
·       Males (n=?) average weight≈ 40,8kg.
·       Females (n=?) average weight≈31,2kg.
Source: Reproduktionspotential hos hanvarg i Sverige Reproductive potential of male wolves in Sweden
Data 3:
·       Males (n=84) average weight≈ 35,38kg. Heaviest 51,7kg, lightest 22,68kg.
·       Females (n=60) average weight≈27,67kg. Heaviest 38,1kg, lightest 20,41kg.
Source: the Wolf, by L David Mech.
 
Finland:
Data 1:
·       Males (n=17) average weight≈ 38,53kg. Heaviest 45kg, lightest 25kg
·       Females (n=18) average weight≈31,22kg. Heaviest 42kg, lightest 9kg
Data 2:
·       Males (n=52) average weight≈ 40,56kg. Heaviest 55kg, lightest 26kg
·       Females (n=33) average weight≈31,96 kg. Heaviest 45kg, lightest 24kg
Source: Studies on the wolf (Canis lupus l.) in Finland, Erkki Pülliainen.
Scandinavia:
Data 1 (Sand et al., 2014):
·       Males average weight between 45kg and 55kg
·       Females average weight between 35kg and 45kg
Data 2 (Wabakken et al., 2001):
·       Males average weight 44,7kg ± 3kg
Source for both: Reproduktionspotential hos hanvarg i Sverige Reproductive potential of male wolves in Sweden
Data 3:
·       Males (n=51) average weight≈ 46,8 kg ± 1,1kg
·       Females (n=38) average weight≈38,3 kg ± 1,1kg
Source: Journal of animal ecology 2015, Predator-dependent functional response in wolves:
from food limitation to surplus killing
Data 4:
·       Males (n=23) average weight of fully adults (number is not given) ≈ 50kg.
·       Females (n=22) average weight of fully adults (number is not given) ≈39,3kg.
Data 5:
·       Males (n=38) average weight ≈ 41kg.
·       Females (n=25) average weight ≈31kg.
Source for both: Utredninger i forbindelse med ny rovviltmelding Ulv - Bestandsdynamikk, levedyktighet og effekter av uttak Hans C. Pedersen
Note: I don’t have data on the heaviest and lightest wolf in each sample, but I’ve read that the heaviest wolf caught in Sweden since 1977 weighted 57,5kg.
Poland/Belarus:
-       Białowieża Forest :
Data 1 :
·       Males (n=62) average weight≈ 34,8kg. Heaviest 44,8kg, lightest 23,3kg
·       Females (n=58) average weight≈29,2kg. Heaviest 36kg, lightest 21kg
Source: mammals of the Soviet Union volume II, Geptner, V. G.
-       Carpathian mountains :
Data 1 :
·       Males (n=?) average weight≈ 46,4kg. Heaviest 67kg, lightest 35kg
·       Females (n=?) average weight≈39,3kg. Heaviest 50kg, lightest 27kg
Source: Prey choice and diet of wolves related to ungulate communities and wolf
subpopulations in Poland
-       Belarus :
Data 1 :
·       Males (n=22) average weight≈ 42kg.
·       Females (n=7) average weight≈36kg.
Source: Волк, Д.И. Бибиков
 
Slovakia:
Data 1 :
·       Males (n=66) average weight≈ 39,9kg. Heaviest 60kg, lightest 23kg.
·       Females (n=55) average weight≈34,9kg. Heaviest 50kg, lightest 21,3kg.
Source: Notes on somatic proportions of Canis lupus from eastern Slovakia (Carnivora: Canidae), Poznámky k biometrickým údajom populácie vlka eurázijského (Canis lupus) z východného Slovenska (Carnivora: Canidae)
Latvia:
Data 1:
·       Males (n=?) average weight≈ 45-50kg. Heaviest 60-65kg
·       Females (n=?) average weight≈35-40kg.
Source: Волк, Д.И. Бибиков
Lithuania:
Data 1:
·       Males (n=62) average weight≈ 44,5kg. Heaviest 65kg, lightest 31kg
Source: КРУПНЫЕ ХИЩНИКИ и КОПЫТНЫЕ: З В Е РИ, А в т о р ы : В. П. Макридин, Н. К. Верещагин, В. И. Тарян-ников, А. А. Калецкий, Н. С. Свиридов, Л. М. Баскин, М. А. Лавов, В. Е. Размахнин, С. К. Устинов, Е. В. Фадеев.
Yugoslavia:
Data 1:
·       Mixed/not specified sexes (n=?) average weight≈ 33,11kg. Heaviest 63,05kg.
Source: the Wolf, by L David Mech.
Russia:
-       Taimyr
Data 1 :
·       Males (n=29) average weight≈ 44,1kg ± 0,7kg
·       Females (n=29) average weight≈35,5kg ± 0,6kg
Source: ВНУТРИВИДОВОЙ ПОЛИМОРФИЗМ ВОЛКА (Canis Lupus) ПРИЕНИСЕИСКОИ СИБИРИ, Суворов Анаголий Прохорович.
Data 2 :
·       Males (n=11) average weight≈ 46,8kg. Heaviest 52kg, lightest 41kg
Source: КРУПНЫЕ ХИЩНИКИ и КОПЫТНЫЕ: З В Е РИ, А в т о р ы : В. П. Макридин, Н. К. Верещагин, В. И. Тарян-ников, А. А. Калецкий, Н. С. Свиридов, Л. М. Баскин, М. А. Лавов, В. Е. Размахнин, С. К. Устинов, Е. В. Фадеев.
 
-       Putorana
Data 1 :
·       Males (n=29) average weight≈ 44kg ± 0,9kg
·       Females (n=29) average weight≈34,8kg ± 0,7kg
Source: ВНУТРИВИДОВОЙ ПОЛИМОРФИЗМ ВОЛКА (Canis Lupus) ПРИЕНИСЕИСКОИ СИБИРИ, Суворов Анаголий Прохорович.
 
-       Chukotka
Data 1 :
·       Males (n=15) average weight≈ 45,4kg ± 1,9kg
·       Females (n=11) average weight≈38,2kg ± 1,5kg
Source: ВНУТРИВИДОВОЙ ПОЛИМОРФИЗМ ВОЛКА (Canis Lupus) ПРИЕНИСЕИСКОИ СИБИРИ, Суворов Анаголий Прохорович.
Data 2 :
·       Males (n=9) average weight≈ 43,5kg. Heaviest 57,5kg, lightest 31kg
·       Females (n=5) average weight≈37,8kg. Heaviest 41,4kg, lightest 30kg
Source: Волк, Д.И. Бибиков
 
-       Tydansky Peninsula
Data 1 :
·       Males (n=28) average weight≈ 44,5kg. Heaviest 66kg, lightest 37,5kg
·       Females (n=16) average weight≈36,1kg. Heaviest 46kg, lightest 27,1kg
Source: Волк, Д.И. Бибиков
 
-       Nenets National Okrug
Data 1 :
·       Males (n=23) average weight≈ 40kg. Heaviest 49kg.
·       Females (n=23) average weight≈36,6kg. Heaviest 41kg.
Source: Волк, Д.И. Бибиков
 
-       Yamal
Data 1 :
·       Males (n=12) average weight≈ 42kg. Heaviest 49,5kg, lightest 37,5kg
Source: КРУПНЫЕ ХИЩНИКИ и КОПЫТНЫЕ: З В Е РИ, А в т о р ы : В. П. Макридин, Н. К. Верещагин, В. И. Тарян-ников, А. А. Калецкий, Н. С. Свиридов, Л. М. Баскин, М. А. Лавов, В. Е. Размахнин, С. К. Устинов, Е. В. Фадеев.
 
-       Yakutia
Data 1 :
·       Males (n=10) average weight≈ 40,7kg.
·       Females (n=10) average weight≈30kg.
Source: ВНУТРИВИДОВОЙ ПОЛИМОРФИЗМ ВОЛКА (Canis Lupus) ПРИЕНИСЕИСКОИ СИБИРИ, Суворов Анаголий Прохорович.
Data 2 (from tundra) :
·       Males (n=4) average weight≈ 39,5kg. Heaviest 41kg, lightest 38kg.
·       Females (n=3) average weight≈34kg. Heaviest 40kg, lightest 31kg.
Source: Волк, Д.И. Бибиков
 
-       Evenkia
Data 1 :
·       Males (n=25) average weight≈ 44,8kg ± 0,9kg
·       Females (n=25) average weight≈35,7kg ± 0,7kg
Source: ВНУТРИВИДОВОЙ ПОЛИМОРФИЗМ ВОЛКА (Canis Lupus) ПРИЕНИСЕИСКОИ СИБИРИ, Суворов Анаголий Прохорович.
 
-       Northeastern European Russia
Data 1 :
·       Males (n=33) average weight≈ 44,1 kg ± 2,1kg. Heaviest 78kg, lightest 30kg.
·       Females (n=26) average weight≈37,5 kg ± 1,7kg. Heaviest 56kg, lightest 28kg.
Source: МАССА ТЕЛА И РАЗМЕРЫ ВОЛКА (CANIS LUPUS L., 1758) НА ЕВРО-СЕВЕРО-
ВОСТОКЕ РОССИИ, И.С. Козловский.
 
-       Perm region
Data 1 :
·       Males (n=5) average weight≈ 49kg.
Source: Волки Справочник охотника и натуралист, Анатолий Матвеев.
 
-       Kirov region
Data 1 :
·       Mixed sexes (n=9) average weight≈ 46,6-59,2kg (big range since I only have the lightest and heaviest, although the average is probably closer to 46,6kg). Heaviest 61kg (female), lightest 44,8kg
Source: Волки Справочник охотника и натуралист, Анатолий Матвеев.
 
-       Baikal region
Data 1 :
·       Males (n=16) average weight≈ 44,5kg ± 1,33kg
·       Females (n=?) average weight≈34,8kg ± 1,4kg
Source: ВНУТРИВИДОВОЙ ПОЛИМОРФИЗМ ВОЛКА (Canis Lupus) ПРИЕНИСЕИСКОИ СИБИРИ, Суворов Анаголий Прохорович.
 
-       Altai/Sayan
Data 1 :
·       Males (n=32) average weight≈ 37,9kg ± 1kg. Heaviest 53kg, lightest 26,2kg.
·       Females (n=31) average weight≈32,7kg ± 0,9kg. Heaviest 43,3kg, lightest 23,5kg.
Source: МОРФОЛОГИЧЕСКАЯ ХАРАКТЕРИСТИКА ВОЛКА (Canis lupus) ЗАПАДНОЙ И СРЕДНЕЙ СИБИРИ. And ВНУТРИВИДОВОЙ ПОЛИМОРФИЗМ ВОЛКА (Canis Lupus) ПРИЕНИСЕИСКОИ СИБИРИ, Суворов Анаголий Прохорович.
Data 2 :
·       Males (n=?) average weight≈ 39,87kg ± 0,81kg.
·       Females (n=?) average weight≈33,98kg ± 1,03kg.
Source: МОРФОЛОГИЧЕСКАЯ ХАРАКТЕРИСТИКА ВОЛКА (Canis lupus) ЗАПАДНОЙ И СРЕДНЕЙ СИБИРИ.
Note: In 1942, a wolf weighting 72kg was caught in the Altai region (could be closer to the Baikal region though). At the time, it was the heaviest wolf caught in the Russia or even the Soviet Union.
 
-       Khakassia
Data 1 :
·       Males (n=5) average weight≈ 33,8kg
·       Females (n=2) average weight≈31,5kg
Source: ВНУТРИВИДОВОЙ ПОЛИМОРФИЗМ ВОЛКА (Canis Lupus) ПРИЕНИСЕИСКОИ СИБИРИ, Суворов Анаголий Прохорович.
 
-       Southeastern Urals
Data 1 :
·       Males (n=?) average weight≈ 48-50kg
Source: Волки Справочник охотника и натуралист, Анатолий Матвеев. Reply