| Northern lynx | |
|---|---|
 | |
| A Northern lynx in Schönbrunn Zoo, Vienna | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Carnivora |
| Suborder: | Feliformia |
| Family: | Felidae |
| Subfamily: | Felinae |
| Genus: | Lynx |
| Species: | |
| Subspecies: | L. l. lynx |
| Trinomial name | |
| Lynx lynx lynx | |
The northern lynx (Lynx lynx lynx) is a medium-sized subspecies of the Eurasian lynx (Lynx lynx).
The northern lynx is found in Fennoscandia, the Baltic States, the northern and central part of Poland (including Białowieża Forest and Kampinos National Park), Belarus, the European part of western, northern, central and eastern Russia, the Ural Mountains, and Western Siberia east to the Yenisei River. [2]
Northern lynx prey largely on small to fairly large sized mammals and birds. Among the recorded prey items are European and mountain hares, rabbits, red squirrels, Siberian flying squirrels, dormice, mices, mustelids (such as martens), grouse, red foxes, raccoon dogs, wild boar, roe deer, moose, red deer and other medium-sized ungulates. Semi-domestic reindeer (Rangifer tarandus) are the main prey for the northern lynx in northern Scandinavia. [3]
In Russian forests, the most important predator of the Eurasian lynx is the grey wolf. [4] In packs, wolves kill and eat lynxes that fail to escape into trees. Lynx populations decrease when wolves appear in a region and are likely to take smaller prey where wolves are active. [4] [5]
Wolverines are perhaps the most dogged of competitors for kills, often stealing lynx kills. Lynxes tend to actively avoid encounters with wolverines, but may sometimes fight them if defending kittens. Instances of predation on lynx by wolverines may occur, even perhaps on adults, but unlike wolf attacks on lynx are extremely rare if they do in fact occur. [6] [4] One study in Sweden found that out of 33 deaths of lynx of a population being observed, one was probably killed by a wolverine. [7] Another known instance of predation by an adult wolverine on an adult lynx was reportedly seen in the Pechora River area, although this appeared to merely be an anecdotal claim. [4] There are no known instances of lynx preying on a wolverine. [4] [8]
Brown bears, although not (so far as is known) predators of Eurasian lynx, are in some areas semi-habitual usurpers of ungulate kills by lynxes, not infrequently before the cat has had a chance to consume its kill itself. [9]
A lynx is any of the four extant species within the medium-sized wild cat genus Lynx. The name originated in Middle English via Latin from the Greek word lynx (λύγξ), derived from the Indo-European root leuk-, in reference to the luminescence of its reflective eyes.
The wolverine, also referred to as the glutton, carcajou, or quickhatch, is the largest land-dwelling species of the family Mustelidae. It is a muscular carnivore and a solitary animal. The wolverine has a reputation for ferocity and strength out of proportion to its size, with the documented ability to kill prey many times larger than itself.
Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation and parasitoidism. It is distinct from scavenging on dead prey, though many predators also scavenge; it overlaps with herbivory, as seed predators and destructive frugivores are predators.
The reindeer or caribou is a species of deer with circumpolar distribution, native to Arctic, subarctic, tundra, boreal, and mountainous regions of Northern Europe, Siberia, and North America. It is the only representative of the genus Rangifer. More recent studies suggest the splitting of reindeer and caribou into six distinct species over their range.
The Eurasian lynx is one of the four extant species within the medium-sized wild cat genus Lynx. It is widely distributed from Northern, Central and Eastern Europe to Central Asia and Siberia, the Tibetan Plateau and the Himalayas. It inhabits temperate and boreal forests up to an elevation of 5,500 m (18,000 ft). Despite its wide distribution, it is threatened by habitat loss and fragmentation, poaching and depletion of prey.
The Canada lynx or Canadian lynx is one of the four living species in the genus Lynx. It is a medium-sized wild cat characterized by long, dense fur, triangular ears with black tufts at the tips, and broad, snowshoe-like paws. Its hindlimbs are longer than the forelimbs, so its back slopes downward to the front. The Canada lynx stands 48–56 cm (19–22 in) tall at the shoulder and weighs between 5 and 17 kg. It is a good swimmer and an agile climber.
An apex predator, also known as a top predator, is a predator at the top of a food chain, without natural predators of its own.
The migratory woodland caribou refers to two herds of Rangifer tarandus that are included in the migratory woodland ecotype of the subspecies Rangifer tarandus caribou or woodland caribou that live in Nunavik, Quebec, and Labrador: the Leaf River caribou herd (LRCH) and the George River caribou herd (GRCH) south of Ungava Bay. Rangifer tarandus caribou is further divided into three ecotypes: the migratory barren-ground ecotype, the mountain ecotype or woodland (montane) and the forest-dwelling ecotype. According to researchers, the "George River herd which morphologically and genetically belong to the woodland caribou subspecies, at one time represented the largest caribou herd in the world and migrating thousands of kilometers from boreal forest to open tundra, where most females calve within a three-week period. This behaviour is more like barren-ground caribou subspecies." They argued that "understanding ecotype in relation to existing ecological constraints and releases may be more important than the taxonomic relationships between populations." The migratory George River caribou herd travel thousands of kilometres moving from wintering grounds to calving grounds near the Inuit hamlet of Kangiqsualujjuaq, Nunavik. In Nunavik and Labrador, the caribou population varies considerably with their numbers peaking in the later decades of each of the 18th, 19th and 20th centuries. In 1984, about 10,000 caribou of the George River herd drowned during their bi-annual crossing of the Caniapiscau River during the James Bay Hydro Project flooding operation. The most recent decline at the turn of the 20th century caused much hardship for the Inuit and Cree communities of Nunavik, who hunt them for subsistence.
The Porcupine caribou(Rangifer tarandus groenlandicus) is a herd or ecotype of barren-ground caribou, the subspecies of the reindeer or caribou found in Alaska, United States, and Yukon and the Northwest Territories, Canada.
The barren-ground caribou is a subspecies of the reindeer that is found in the Canadian territories of Nunavut and the Northwest Territories, in northern Alaska and in south-western, Greenland. It includes the Porcupine caribou of Yukon and Alaska. The barren-ground caribou is a medium-sized caribou, smaller and lighter-colored than the boreal woodland caribou, with the females weighing around 90 kg (200 lb) and the males around 150 kg (330 lb). However, on some of the smaller islands, the average weight may be less. The large migratory herds of barren-ground caribou take their names from the traditional calving grounds, such as the Ahiak herd, the Baffin Island herds, the Bathurst herd, the Beverly herd, the Bluenose East herd, the Bluenose West herd, the Porcupine herd and the Qamanirjuaq herd.
Surplus killing, also known as excessive killing, henhouse syndrome, or overkill, is a common behavior exhibited by predators, in which they kill more prey than they can immediately eat and then they either cache or abandon the remainder. The term was invented by Dutch biologist Hans Kruuk after studying spotted hyenas in Africa and red foxes in England. Some of the other animals which have been observed engaging in surplus killing include orcas, zooplankton, humans, damselfly naiads, predaceous mites, martens, weasels, honey badgers, jaguar, leopards, lions, wolves, spiders, brown bears, American black bears, polar bears, coyotes, lynxes, minks, raccoons and dogs.
Reindeer hunting in Greenland is of great importance to the Greenlandic Inuit and sports hunters, both residents and tourists. Reindeer (caribou) are an important source of meat, and harvesting them has always played an important role in the history, culture, and traditions of the Greenlandic Inuit. Controlled hunting is important for the welfare of reindeer, the quality of life for Inuit, both as food, and part of their culture and Greenlandic culture in general, and the preservation of tundra grazing areas. Therefore, scientific research is regularly performed to determine the quotas needed to maintain a proper ecological balance.
The boreal woodland caribou, also known as Eastern woodland caribou, boreal forest caribou and forest-dwelling caribou, is a North American subspecies of reindeer found primarily in Canada with small populations in the United States. Unlike the Porcupine caribou and barren-ground caribou, boreal woodland caribou are primarily sedentary.
The mountain reindeer, also called the Norwegian reindeer, northern reindeer, common reindeer or mountain caribou, is a mid-sized to large subspecies of the reindeer that is native to the western Scandinavian Peninsula, particularly Norway. In Norway, it is called fjellrein, villrein or tundra-rein.
Caribou herds in Canada are discrete populations of seven subspecies that are represented in Canada. Caribou can be found from the High Arctic region south to the boreal forest and Rocky Mountains and from the east to the west coasts.
The reindeer is a widespread and numerous species in the northern Holarctic, being present in both tundra and taiga. Originally, the reindeer was found in Scandinavia, eastern Europe, Russia, Mongolia, and northern China north of the 50th latitude. In North America, it was found in Canada, Alaska, and the northern contiguous USA from Washington to Maine. In the 19th century, it was apparently still present in southern Idaho. It also occurred naturally on Sakhalin, Greenland, and probably even in historical times in Ireland.
The Large Carnivore Initiative for Europe (LCIE) is a working group of the IUCN Commission on the Conservation of Species. and a Non-governmental organization. President of the LCIE is the Secretary of the IUCN Wolf Specialist Group Luigi Boitani. Its objective is to maintain and restore viable populations of large carnivores in coexistence with humans as an integral part of ecosystems and landscapes throughout Europe.
