Canada lynx Article

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Canada lynx
Canada Lynx (6187103428).jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Suborder: Feliformia
Family: Felidae
Subfamily: Felinae
Genus: Lynx
L. canadensis
Binomial name
Lynx canadensis
Kerr, 1792
Canada Lynx area.png
Canada lynx range
Synonyms [2]

Felis lynx canadensis Kerr, 1792

The Canada lynx (Lynx canadensis) is a lynx species native to North America. It ranges across Canada and Alaska extending into the Rocky Mountains and New Mexico. It has been listed as Least Concern on the IUCN Red List since 2002. [1]

With a dense silvery-brown coat, ruffed face and tufted ears, the Canada lynx resembles the other species of the mid-sized feline genus Lynx. It is slightly larger than the bobcat, with which it shares parts of its range, and over twice the size of the domestic cat.


In his 1792 work The Animal Kingdom, Scottish scientific writer Robert Kerr described a lynx from Canada, giving it the name Felis lynx canadensis. [3] The taxonomy of the Canada lynx remained disputed through the 20th and early 21st centuries. In 1912, American zoologist Gerrit Miller placed the Canada lynx under the genus Lynx, with the name L. canadensis. [4] Till as late as the early 2000s, scientists were divided on whether Lynx should be considered a subgenus of Felis, or a subfamily itself; some even doubted if the Canada lynx should be considered a species on its own. [5] [6] [7] American zoologist W. C. Wozencraft revised the classification of Carnivora in 2005, and recognized the Canada lynx as a species under Lynx, along with the bobcat (L. rufus), the Eurasian lynx (L. lynx) and the Iberian lynx (L. pardinus). In 2017, the Cat Classification Task Force of the IUCN Cat Specialist Group revised felid taxonomy, considering the Canada lynx a monotypic species. [8]

Wozencraft recognized three subspecies of the Canada lynx in Mammal Species of the World (2005): [9]

  • L. c. canadensis Kerr, 1792
  • L. c. subsolanus (Newfoundland lynx) Bangs, 1897 – Described by American zoologist Outram Bangs from a lynx skin and skull collected near Codroy in Newfoundland. [10]
  • L. c. mollipilosus (Arctic lynx) Stone, 1900 – Described by American mammalogist Witmer Stone from a skin and skull of a male lynx killed near Wainwright, Alaska. [11]

However, morphological and genetic analyses of Canada lynx specimens have not revealed any subspecific distinction. [12] [13]


Fossils of the Issoire lynx (L. issiodorensis), which is believed to be the ancestor of the four modern Lynx species

According to a 2006 study based on genetic analysis, the ancestor of five felid lineages – Lynx, Leopardus, Puma, Felis and Prionailurus plus Otocolobus – arrived in North America after crossing the Bering Strait 8.5–8 mya. Lynx diverged from the Puma, Felis and Prionailurus plus Otocolobus lineages around 3.24 mya. [14] The Issoire lynx (L. issiodorensis), that probably originated in Africa 4 mya and occurred in Europe and northern Asia until it became extinct around 1 mya, is believed to be the ancestor of the four modern species of Lynx. [15] [16] A 1987 study suggested that the populations of the Eurasian lynx that reached North America 20,000 years ago initially moved toward the southern half of the continent, as the northern part was covered by glaciers. The southern populations gradually evolved into the modern bobcat (L. rufus). Later, when the continent was invaded by the Eurasian lynx for a second time, the populations that settled in the northern part of the continent, now devoid of glaciers, evolved into the Canada lynx. [17] The 2006 study gave the phylogenetic relationships of the Canada lynx as follows: [14] [18]



Bobcat (L. rufus)

Canada lynx (L. canadensis)

Iberian lynx (L. pardinus)

Eurasian lynx (L. lynx)


Cheetah (Acinonyx jubatus)

Cougar (Puma concolor)

Jaguarundi (P. yagouaroundi)


Pallas's cat (Otocolobus manul)


Physical characteristics

A close facial view of the Canada lynx. The black ear tufts are characteristic of lynxes.

The Canada lynx is a medium-sized cat, similar in many ways to the bobcat. This lynx is between 80 and 100 centimetres (31 and 39 in) in head-and-body length, stands 48–56 centimetres (19–22 in) tall at the shoulder and weighs 5–18 kilograms (11–40 lb). At roughly half the size of the Eurasian lynx, physical proportions do not vary significantly across its range and are probably naturally selected to allow the animal to survive on smaller prey. [19] The Canada lynx is sexually dimorphic, with males larger and heavier than females. [15] [20] Like the bobcat, the Canada lynx has forelimbs shorter than the hindlimbs, so that the back appears to be sloping downward toward the front. The stubby tail, typical of lynxes, measures 5–15 centimetres (2.0–5.9 in). [15] [20]

The coat is generally yellowish brown (though the back is sometimes grey), and can change color seasonally. [15] The dense, long fur insulates it in its frosty habitat. [21] Although no melanistic or albinistic forms of the Canada lynx are known, "blue" lynxes have been reported from Alaska. [22] Black hair tufts (4 centimetres (1.6 in) long), a feature common to all lynxes, emerge from the tips of the ears, which are lined with black. [20] [23] In winter, the hair on the lower cheeks grow so long that it appears to form a ruffle covering the throat. Some dark spots can be seen on the underbelly, where the fur is long and white (sometimes with a hint of buff). There are four nipples. [15] [20] The coat is short and reddish brown to greyish in summer, but becomes notably longer and greyer in winter, with a mix of greyish brown and buff hairs; [6] [24] the spots may become more distinct in summer. [25] The tail is marked with dark rings and, unlike the tail of the bobcat, terminates in a fully black tip. [15] [20] The paws, covered in long and thick fur, can support nearly double the weight the paws of a bobcat can bear. [26]

As the forelimbs of are shorter than the hindlimbs, the back appears to be sloping downward toward the front. Also note the stubby tail and the dense fur.

The Canada lynx has 28 teeth, [27] same as in other lynxes but unlike other felids, [7] with four long canines for puncturing and gripping. The lynx can feel where it is biting the prey with its canines because they are heavily laced with nerves. It also has four carnassial teeth that cut the meat into small pieces. In order for the lynx to use its carnassials, it must chew the meat with its head to its side. There are large spaces between the four canines and the rest of the teeth, and the second upper premolars are absent, to ensure that the bite goes as deeply as possible into the prey. [28] The claws are sharp and completely retractable (capable of being drawn within). The paws, broadened by the wide-spaced metatarsals, [23] can spread as wide as 10 centimetres (3.9 in) and allow the lynx to move fast and with ease on the snow. [7] [21] The spoor is more distinct in hard snow than in mud, though the toes are not clearly visible in deep snow. [29]

The Canada lynx differs from the bobcat in having longer ear tufts, a greyer and less red coat, less distinct spotting on the coat, a slightly shorter tail completely black on the tip rather than only on the upper side, and larger paws. [7] [30] The bobcat is generally smaller than the Canada lynx, but may still be confused in areas where their ranges overlap, because bobcats tend to be larger in such areas. [23] The caracal resembles the lynxes in having similar tufts on the ears. [31]

Ecology and behaviour

Canada lynx sitting

The Canada lynx tends to be nocturnal (active mainly at night), like the snowshoe hare, its major prey. Nevertheless, activity may be observed during daytime. [15] The lynx can cover 8–9 kilometres (5.0–5.6 mi) everyday to procure prey, [32] [33] moving at 0.75–1.46 km/h (0.47–0.91 mph). [34] Lynxes are good swimmers; [20] one account records a lynx swimming two miles across the Yukon River. [35] The Canada lynx is an efficient climber, and will dodge predators by climbing high up on trees; however, they hunt only on land. [23] Canada lynxes are primarily solitary, with minimal social interaction except for the mother-offspring bond and the temporary association between males and females during the mating season. [26] [36]

In 2018 it was discovered that in Maine, the fisher will also occasionally hunt Canada lynxes, with the mustelids often ending up succeeding when encounters are recorded both in part due to the fisher's aggression and the less aggressive nature of the lynx in comparison to the American bobcat, which in turn serves as the fisher's predator in areas where the two carnivores meet. [37]

Home ranges

Canada lynxes establish home ranges that vary widely in size, depending upon the method of measurement. The two common methods are examining the tracks of the lynx on snow (snow-tracking) and radio telemetry; snow-tracking generally gives smaller sizes for home ranges. Studies based on snow-tracking have estimated home range sizes of 11.1–49.5 square kilometres (4.3–19.1 sq mi), while those based on radio telemetry have given the area between 8 and 783 square kilometres (3.1 and 302.3 sq mi). [6] Like other cats, Canada lynxes scent-mark their ranges by spraying urine and depositing faeces on snow or tree stumps and other prominent sites in and around their range. [15]

Males tend to occupy larger ranges than do females; for instance, based on data from a 1980 radio telemetric analysis in Minnesota, the home ranges of males covered 145–243 square kilometres (56–94 sq mi), while those of females covered 51–122 square kilometres (20–47 sq mi). The study coincided with an immigration of lynxes into Minnesota, where hares occurred in small numbers. [38] In another radio telemetric study in 1985 in Montana, male home ranges averaged 122 square kilometres (47 sq mi) and those of females averaged 43.1 square kilometres (16.6 sq mi). [39] In a study in the southern Northwest Territories, ranges of individuals of opposite sexes were found to overlap extensively, while the ranges of individuals of the same sex hardly coincided. The study suggested that individuals tend to avoid one another and thus passively defend their ranges. [40]

Factors such as availability of prey (primarily snowshoe hare), density of lynxes and the topography of the habitat determine the shape and size of the home range. [6] Studies have tried to correlate the abundance of snowshoe hares in an area with the sizes of lynx home ranges in that area. A 1985 study showed that the mean size of home ranges trebled—from 13.2 to 39.2 square kilometres (5.1 to 15.1 sq mi)—when the density of hares fell from 14.7 to 1 per hectare (5.95 to 0.40/acre). [41] However, a few other studies have reported different responses from lynxes at times of prey scarcity; some lynxes do not show any changes in their ranges, while others may resort to hunting in small areas, occupying small home ranges. [6] Canada lynxes generally do not leave their home ranges frequently, though limited prey availability can be a factor powerful enough to cause lynxes to disperse or expand their ranges. [40] [42]

Diet and hunting

Exclusively carnivores, the Canada lynx depends heavily on snowshoe hares for food. These hares comprise 35–97% of their diet; their occurrence in the diet varies by abundance of hares and the season. [23] Snowshoe hare populations in Alaska and central Canada undergo cyclic rises and falls – at times the population densities can fall from as high as 2,300 per square kilometre (6,000/sq mi) to as low as 12 per square kilometre (31/sq mi). Consequently, a period of hare scarcity occurs every 8 to 11 years. [43] During these times, lynxes will include other animals – such as ducks, grouse, moles, ptarmigan, red squirrels, voles and young ungulates ( Dall's sheep, mule deer and caribou) – in their diet, though snowshoe hares are still the primary component. The Canada lynx tends to be less selective in summer and autumn, preying on other small mammals, though snowshoe hares continue to prevail in the diet. Canada lynxes consume one hare every one to two days, such that they consume 600–1,200 grams (21–42 oz) of food everyday. [15] [23]

A study of coyotes and Canada lynxes in southwest Yukon Territory showed that during that phase of the snowshoe hare abundance cycle when their numbers increased, both predators killed more hares than were needed for their subsistence; lynxes need to kill 0.4 to 0.5 hares per day to meet their energy requirements, but were observed to kill 1.2 hares per day during the study. Coyotes, with a success rate of 36.9%, emerged as more successful hunters than lynxes (though this may have been caused due to a greater number of adult coyotes in the studied population), that succeeded in 28.7% of their hunts. Lynxes rarely cached their kills, unlike coyotes, and this may have led to incomplete consumption of some kills. During the cyclic decrease in snowshoe hare numbers, both predators hunted for the same time period as they did when hares were abundant, but lynxes killed more hares than they did earlier. Moreover, lynxes supplemented their diet with red squirrels. [34]

Canadian lynxes hunt around twilight or at night, the time when snowshoe hares tend to be active. [23] Lynxes rely on their vision and sense of hearing to locate prey. [20] The lynx will roam or wait on certain trails where snowshoe hares gather, pounce on a hare and kill it by a bite on its head, throat or the nape of its neck. Young ungulates are given a throat bite to suffocate them to death. They can eat their kill immediately or cache them in snow or leaves to eat them over the next few days. [15] [23] Lynxes will occasionally hunt together, and achieve success rates as 55% – notably greater than that achieved when they hunt singly (14%). [26] Scavenging is common in Canada lynxes; they will take ungulates killed in the cold or by roadkill. [23]


Canada lynx kittens are born with blue eyes

The breeding season in Canada lynx lasts only for a month, ranging from March to May, depending on the local climate. Females come into oestrus only once during this period, lasting for three to five days. [15] The female attracts a mate by leaving some of her urine where the male has marked his territory, and by repeated calling. Mating can occur six times in one hour. The female lynx will only mate with one male each season, but the male may mate with multiple females.

Gestation lasts around 64 days, so that the young are born in May or early June. Before birth, the female prepares a maternal den, usually in very thick brush, and typically inside thickets of shrubs or trees or woody debris. The dens are generally situated mid-slope and face south or southwest. [44]

Litters contain from one to four kittens, and tend to be much larger when prey is abundant. [45] This suggests a greater degree of reproductive flexibility than in other cats, and females often do not mate at all when prey is scarce. When kittens are born in lean years, however, infant mortality may be as high as 95%.

Canada lynx kittens weigh from 175 to 235 g (6.2 to 8.3 oz) at birth, and initially have greyish buff fur with black markings. They are blind and helpless for the first fourteen days, and weaned at twelve weeks. [15] When their eyes open, they are a bright blue colour, but as they mature, the eyes become a brown-hazel colour. The mother brings the food to her kittens and allows them to play with it before eating it, thus training their hunting skills.

Kittens leave the den after about five weeks, and begin hunting at between seven and nine months of age. They leave the mother at around ten months, as the next breeding season begins, but do not reach the full adult size until around two years old. Females reach sexual maturity at ten months, although they often delay breeding for another year, while males reach maturity at two or three years. Canada lynx have been reported to live for up to fourteen years in captivity although the lifespan is likely much shorter in the wild. [15]


Canada Lynx tracks in Alaska. There are traces of fur and the raised heel, visible on a lynx in the profile photograph below.

Canada lynx tracks may show traces of the fur dragging in the snow around around the track. If the snow is deep, the print of the lynx's raised heel may show, and the print will be shallower than one would otherwise expect. Heel excluded, the prints are fairly round. The stride is fairly short, with the inter-track spacing being about the same as the print length including heel. [46]

Distribution and habitat

The Canada lynx is found in northern and mixed forests across Canada and Alaska. It is, however, absent in the relatively treeless regions of the Great Plains and the northern coasts, which are outside the natural range of the snowshoe hare. Due to human activity, the Canada lynx is no longer found on Prince Edward Island or on the mainland of Nova Scotia, [47] although there are two known areas of Canada lynx populations in Cape Breton Highlands. [48]

In addition, there are large populations of this lynx in Montana, Idaho, Washington, and Oregon, and a resident population exists in Yellowstone National Park and Medicine Bow National Forest, Wyoming, that extends into the Greater Yellowstone Ecosystem. [49] The Canada lynx is rare in Utah, Minnesota, and New England. The Canada lynx is a threatened species in the contiguous United States.

A Canada lynx was shot near Newton Abbott in the United Kingdom in 1903 after attacking two dogs. The dead lynx was preserved by Bristol Museum and Art Gallery, and scientists identified it after analysis over a century later. They concluded that it had probably been captive for some time, perhaps as an exotic pet or part of a travelling menagerie, but may have survived for a substantial period after escaping. They considered it "the earliest recorded example of an exotic cat on the loose in the UK". [50]

Starting in 1999, the Colorado Division of Wildlife began a program reintroducing a wild lynx population of 96 to Colorado. While showing early signs of promise, biologists say it will take more than a decade to determine whether the program is a success. However, in 2003 lynx den visits identified 16 native-born Colorado lynx, and the next year, 39 new lynx kittens were identified, confirming the possibility of successful reintroduction. [51]

In 2007 several of these lynx were shot and killed by unknown persons. In some cases only the radio tracking collars were found, leading to suspicions of fur poaching; in other cases the animals were shot and the body left intact. [52]

By 2010, after an 11-year effort, the lynx had been successfully reintroduced into Colorado, where it had become extinct in the 1970s. The initial introduction was in the San Juan Mountains in southwestern Colorado, but self-sustaining populations were established throughout the south-central Colorado Rockies as far north as Summit County by 2010. In Colorado the red squirrel is an important secondary food source when snowshoe hares are scarce. [53] [54] [55] Isolated individual lynx have wandered widely from the core area in the Southern Rockies where they were reintroduced, resulting in observation of lynx introduced in Colorado as far away as Iowa, northern Idaho, and eastern Nevada. It was found helpful to rest and feed the animals well before releasing them in prime condition during the spring thaw. [56]

Cycle of abundance

Numbers of snowshoe hare (yellow, background) and lynx (black line, foreground) furs sold to the Hudson's Bay Company.

In northern Canada, the abundance of lynx can be estimated from the records kept of the number caught each year for their fur. Records have been kept by the Hudson's Bay Company and Canadian government since the 1730s. [57] A cycle of its abundance is characterised by huge rises and falls, with the peaks occurring at a level typically ten times higher than the troughs and following about five years after them; the cycle then reverses. The exceptionally long data set from historical records of fur purchases from trappers is a common case study, appearing in many secondary school and university textbooks worldwide. [58] [59]

This lynx is a specialist predator, eating snowshoe hare almost exclusively when they are available. The population variation of the lynx and the hare is an example of a predator-prey cycle. Environmental factors such as weather and forest plant growth that may affect this population variation have been studied.


The Canada lynx is trapped for its fur, and has declined in many areas due to habitat loss; however, the IUCN lists them as a species of Least Concern. [1] On March 24, 2000, the U.S. Fish and Wildlife Service issued its Final Rule, which designated the Canada lynx a Threatened Species in the southern-most 48 states. [60] [61] Canada lynx-bobcat hybrids have also been detected at the southern periphery of the current population range for lynx (Maine, Minnesota and New Brunswick), [62] [63] which may limit their recovery in the south.

In December 2017 Wildlife officials say Canada lynx no longer need special protections in the United States following measures to preserve populations of the snow-loving big cats. The U.S. Fish and Wildlife Service said Thursday it will begin drafting a rule to revoke the lynx's threatened species status, which has been in place since 2000. [64]


  1. ^ a b c Vashon, J. (2016). "Lynx canadensis". The IUCN Red List of Threatened Species. IUCN: e.T12518A101138963. doi: 10.2305/IUCN.UK.2016-2.RLTS.T12518A101138963.en.
  2. ^ "Lynx canadensis". Integrated Taxonomic Information System. Retrieved 19 March 2019.
  3. ^ Kerr, R. (1792). "F. Lynx canadensis". The Animal Kingdom. London, UK: A. Strahan & T. Cadell. pp. 157−8.
  4. ^ Miller, G. S. Jr. (1912). List of North American land mammals in the United States National Museum, 1911. Washington, US: United States National Museum. pp. 118−21.CS1 maint: Date and year ( link)
  5. ^ Tumlison, R. (1987). "Felis lynx". Mammalian Species (269): 1–8. doi: 10.2307/3503985. JSTOR  3503985.
  6. ^ a b c d e Koehler, G. M.; Aubry, K. B. (1994). "Lynx". In Zielinski, W. J.; Kucerala, T. E. The Scientific Basis for Conserving Forest Carnivores: American Marten, Fisher, Lynx and Wolverine in the Western United States. Colorado, US: Diane Publishing. pp. 74–98. ISBN  978-0-7881-3628-3.
  7. ^ a b c d Anderson, E. M.; Lovallo, M. J. (2003). "Bobcat and lynx". In Feldhamer, G. A.; Thompson, B. C.; Chapman, J. A. Wild Mammals of North America: Biology, Management, and Conservation (Second ed.). Baltimore, US: Johns Hopkins University Press. pp. 758–786. ISBN  978-0-8018-7416-1.
  8. ^ Kitchener, A. C.; Breitenmoser-Würsten, C.; Eizirik, E.; Gentry, A.; Werdelin, L.; Wilting, A.; Yamaguchi, N.; Abramov, A. V.; Christiansen, P.; Driscoll, C.; Duckworth, J. W.; Johnson, W.; Luo, S.-J.; Meijaard, E.; O'Donoghue, P.; Sanderson, J.; Seymour, K.; Bruford, M.; Groves, C.; Hoffmann, M.; Nowell, K.; Timmons, Z.; Tobe, S. (2017). "A revised taxonomy of the Felidae: The final report of the Cat Classification Task Force of the IUCN Cat Specialist Group" (PDF). Cat News (Special Issue 11): 41−2.
  9. ^ Wozencraft, W.C. (2005). "Species Lynx canadensis". In Wilson, D.E.; Reeder, D.M. Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 541. ISBN  978-0-8018-8221-0. OCLC  62265494.
  10. ^ Bangs, O. (1897). "Notes on the lynxes of eastern North America, with descriptions of two new species". Proceedings of the Biological Society of Washington. 11: 47−51.
  11. ^ Stone, W. (1900). "Report on the birds and mammals collected by the McIlhenny Expedition to Pt. Barrow, Alaska". Proceedings of the Academy of Natural Sciences of Philadelphia. 52: 4−49.
  12. ^ Van Zyll de Jong, C. G. (1975). "Differentiation of the Canada lynx, Felis (Lynx) canadensis subsolana, in Newfoundland". Canadian Journal of Zoology (50): 699−705. doi: 10.1139/z75-085.
  13. ^ Rueness, E. K.; Stenseth, N. C.; O’Donoghue, M.; Boutin, S.; Ellegren, H.; & Jakobsen, K. S. (2003). "Ecological and genetic spatial structuring in the Canada lynx". Nature. 425: 69−72. doi: 10.1038/nature01942.
  14. ^ a b Johnson, W.E.; Eizirik, E.; Pecon-Slattery, J.; Murphy, W.J.; Antunes, A.; Teeling, E. & O'Brien, S.J. (2006). "The Late Miocene radiation of modern Felidae: A genetic assessment". Science. 311 (5757): 73–77. Bibcode: 2006Sci...311...73J. doi: 10.1126/science.1122277. PMID  16400146.
  15. ^ a b c d e f g h i j k l m Sunquist, M.; Sunquist, F. (2002). "Canada lynx Lynx canadensis Kerr, 1792". Wild Cats of the World. Chicago, US: University of Chicago Press. pp. 153, 155–163. ISBN  978-0-226-77999-7.
  16. ^ Kurtén, B. (1978). "The lynx from Etouaires, Lynx issiodorensis (Croizet & Jobert), Late Pliocene" (PDF). Annales Zoologici Fennici. 15 (4): 314–22. JSTOR  23733663.
  17. ^ Quinn, N.W.S.; Parker, G. (1987). Novak, M.; Baker, J.; Obbard, M., eds. Wild Furbearer Management and Conservation in North America. Toronto, Canada: Ontario Trappers Association. ISBN  978-0-7743-9365-2.
  18. ^ Werdelin, L.; Yamaguchi, N.; Johnson, W. E.; O'Brien, S. J. (2010). "Phylogeny and evolution of cats (Felidae)" (PDF). In Macdonald, D.W.; Loveridge, A.J. Biology and Conservation of Wild Felids (Reprint ed.). Oxford, UK: Oxford University Press. pp. 59–82. ISBN  978-0-19-923445-5.
  19. ^ Werdelin, L. (1981). "The evolution of lynxes" (PDF). Annales Zoologici Fennici. 18 (1): 37–71. JSTOR  23734102.
  20. ^ a b c d e f g Nowak, R.M. (1999). Walker's Mammals of the World (6th ed.). Baltimore, US: Johns Hopkins University Press. pp. 807–8. ISBN  978-0-8018-5789-8.
  21. ^ a b Bowers, N.; Bowers, R.; Kaufman, K. (2007). Kaufman Field Guide to Mammals of North America. New York, US: Houghton Mifflin. p. 138. ISBN  978-0-618-95188-8.
  22. ^ Schwarz, E. (1938). "Blue or dilute mutation in Alaskan lynx". Journal of Mammalogy. 19 (3): 376. doi: 10.1093/jmammal/19.3.376-a.
  23. ^ a b c d e f g h i Hunter, L. (2015). Wild Cats of the World. London, UK: Bloomsbury Publishing. pp. 146–51. ISBN  978-1-4729-2285-4.
  24. ^ Reid, F.A. (2006). A Field Guide to Mammals of North America, North of Mexico (4th ed.). Boston, US: Houghton Mifflin Co. pp. 436–7. ISBN  978-0-395-93596-5.
  25. ^ Reid, F.A. (2006). Peterson Field Guide to Mammals of North America (4th ed.). Boston, US: Houghton Mifflin Co. p. 94. ISBN  978-0-547-34553-6.
  26. ^ a b c Parker, G.R.; Maxwell, J.W.; Morton, L.D.; Smith, G.E.J. (1983). "The ecology of the lynx (Lynx canadensis) on Cape Breton Island". Canadian Journal of Zoology. 61 (4): 770–86. doi: 10.1139/z83-102.
  27. ^ Burt, W.H. (1976). A Field Guide to the Mammals: North America North of Mexico (3rd ed.). Boston, US: Houghton Mifflin Co. p. 80. ISBN  978-0-395-91098-6.
  28. ^ Macdonald, D. (1993). The Velvet Claw: A Natural History of the Carnivores. New York, US: BBC Books. pp. 47–50. ISBN  978-0-563-20844-0.
  29. ^ Murie, O.J.; Elbroch, M. (2005). A Field Guide to Animal Tracks (3rd ed.). Boston, US: Houghton Mifflin Co. p. 255. ISBN  978-0-618-51743-5.
  30. ^ "How to Avoid Incidental Take of Lynx While Trapping or Hunting Bobcats and other Furbearers" (PDF). United States Fish & Wildlife Service and International Association of Fish and Wildlife Agencies. 2003. Retrieved 19 July 2014.
  31. ^ Skinner, J.D.; Chimimba, C.T. (2006). The Mammals of the Southern African Sub-region (3rd (revised) ed.). Cambridge, UK: Cambridge University Press. pp. 397–400. ISBN  978-1107-394-056.
  32. ^ Saunders, J.K. (1963). "Movements and activities of the lynx in Newfoundland". The Journal of Wildlife Management. 27 (3): 390–400. doi: 10.2307/3798512. JSTOR  3798512.
  33. ^ Nellis, C.H.; Keith, L.B. (1968). "Hunting activities and success of lynxes in Alberta". The Journal of Wildlife Management. 32 (4): 718–22. doi: 10.2307/3799545. JSTOR  3799545.
  34. ^ a b O'Donoghue, M.; Boutin, S.; Krebs, C.J.; Zuleta, G.; Murray, D.L.; Hofer, E.J. (1998). "Functional responses of coyotes and lynx to the snowshoe hare cycle" (PDF). Ecology. 79 (4): 1193–208. doi: 10.1890/0012-9658(1998)079[1193:FROCAL]2.0.CO;2.
  35. ^ Kobalenko, J. (1997). Forest Cats of North America Cougars, Bobcats, Lynx. Ontario, Canada: Firefly Books. ISBN  978-1-55209-172-2.
  36. ^ Carbyn, L.; Patriquin, D. (1983). "Observations on home range sizes, movements, and social organization of lynx, (Lynx canadensis), in Riding Mountains National Park, Manitoba". Canadian Field-Naturalist. 97: 262–7.
  37. ^ "Small Weasel-Like Animals Are Taking Down Big Cats". Animals. September 28, 2018.
  38. ^ Mech, L.D. (1980). "Age, sex, reproduction, and spatial organization of lynxes colonizing Northeastern Minnesota". Journal of Mammalogy. 61 (2): 261–7. doi: 10.2307/1380047. JSTOR  1380047.
  39. ^ Brainerd, S.M. (1985). Reproductive ecology of bobcats and lynx in western Montana (M.Sc. thesis). University of Montana. pp. 1–85.
  40. ^ a b Poole, K.G. (1995). "Spatial organization of a lynx population". Canadian Journal of Zoology. 73 (4): 632–41. doi: 10.1139/z95-074.
  41. ^ Ward, R.M.P.; Krebs, C.J. (1985). "Behavioural responses of lynx to declining snowshoe hare abundance". Canadian Journal of Zoology. 63 (12): 2817–24. doi: 10.1139/z85-421.
  42. ^ Poole, K.G. (1997). "Dispersal patterns of lynx in the Northwest Territories". The Journal of Wildlife Management. 61 (2): 497–505. doi: 10.2307/3802607. JSTOR  3802607.
  43. ^ Brand, C.J.; Keith, L.B. (1979). "Lynx demography during a snowshoe hare decline in Alberta". The Journal of Wildlife Management. 43 (4): 827–49. doi: 10.2307/3808267. JSTOR  3808267.
  44. ^ Slough, BG (1999). "Characteristics of Canada Lynx, Lynx canadensis, Maternal Dens and Denning Habitat". Canadian Field-Naturalist. 113 (4): 605–608. Archived from the original on November 17, 2007. Retrieved July 23, 2007.
  45. ^ "Lynx, Lynx Pictures, Lynx Facts". National Geographic.
  46. ^ "Lynx Project - Identifying Lynx Tracks". Retrieved 5 March 2019.
  47. ^ Sunquist, M.; Sunquist, F. (2002). Wild Cats of the World. Chicago, US: University of Chicago Press. pp. 154–65. ISBN  0-226-77999-8.
  48. ^
  49. ^ Potter, Tiffany (April 13, 2004). "Reproduction of Canada Lynx Discovered in Yellowstone" (PDF). Nature: Year in Review. National Park Service. Retrieved November 28, 2014.
  50. ^ Morelle, Rebecca (April 24, 2013). "'Big cat' Canada lynx was on the loose in UK in 1903". BBC News. Retrieved July 16, 2013.
  51. ^ Martin, Jared (2013-01-29). "Endangered Species Program | ESA Success Story". Retrieved 2014-07-19.
  52. ^ Bronski, P (June 2007). "Environment – Missing Lynx". 5280 Magazine. Retrieved June 16, 2007.
  53. ^ Banda, Solomon (September 18, 2010) Associated Press story printed as Lynx reintroduction ruled a success in Colorado by The Denver Post and Colorado: Lynx No Longer Missing by The NY Times
  54. ^ "DOW Declares Colorado Lynx Reintroduction Program a Success" Archived July 18, 2011, at the Wayback Machine press release Colorado Division of Wildlife September 17, 2010, accessed September 18, 2010
  55. ^ "Success of the Lynx Reintroduction Program" Archived August 27, 2010, at the Wayback Machine Colorado Division of Wildlife Sep 7, 2010, accessed September 18, 2010
  56. ^ "Success of the Colorado Division of Wildlife’s lynx reintroduction program" report by the Colorado Division of Wildlife, accessed September 18, 2010
  57. ^ Weinstein, MS (1977). "Hares, Lynx, and Trappers". The American Naturalist. 111 (980): 806–808. doi: 10.1086/283212. JSTOR  2460337.
  58. ^ Krebs & Myers. "The Snowshoe Hare 10-year Cycle – A Cautionary Tale". Ecological Rants. University of British Columbia. Retrieved 7 October 2015.
  59. ^ "Predators and their prey". BBC Bitsize. BBC. Retrieved 7 October 2015.
  60. ^ Fish & Wildlife Service (March 24, 2000). "Endangered and Threatened Wildlife and Plants; Determination of Threatened Status for the Contiguous U.S. Distinct Population Segment of the Canada Lynx and Related Rule" (PDF). Federal Register. 65 (58): 16052.
  61. ^ Canada Lynx. U.S. FWS.
  62. ^ Homyack, J.A.; et al. (2008). "Canada Lynx-Bobcat (Lynx canadensis x L.rufus) hybrids at the southern periphery of lynx range in Maine, Minnesota and New Brunswick" (PDF). American Midland Naturalist. 159 (2): 504–508. doi: 10.1674/0003-0031(2008)159[504:CLLCLR]2.0.CO;2.
  63. ^ Schwartz M.K.; et al. (2004). "Hybridization between Canada Lynx and Bobcats: Genetic results and management implications" (PDF). Conservation Genetics. 5 (3): 349–355. doi: 10.1023/B:COGE.0000031141.47148.8b.
  64. ^ Press, Associated. "US says snow-loving lynx no longer need special protection".

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