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Spanish Lynx, can they survive
The Ib erian,
or Spanish, Lynx is currently the most endangered wild cat in
the world. They look like a smaller version of the Eurasian
lynx, yet closer in size to the Canadian Lynx, and have similar
diets as well, since they rely on rabbits for a large part of
their diet. Their ecology is very different from the Eurasian
lynx though. The Eurasian lynx is a forest animal which preys on
ungulates, the Iberian lynx is found in scrub vegetation and
preys almost exclusively on European rabbits.
Spanish Lynx
have a coat color of yellowish to reddish-brown, patterned with
many dark spots, and white underpants. They have the typical
look of the lynx species, with a flared facial ruff, long, dark
ear tufts, and a very short, dark tipped tail.
The majority
of den sites have been found at the base of an old, hollow cork
oak tree, indicating how important these trees are to the
female. The peak birthing season is March and April in central
and southern Spain. Kittens stay in the natal den for the first
20 days, after which they are moved to as many as three or four
other dens, giving them more room as they grow, and to help
protect them against being discovered by predators. It may also
help avoid parasite build up in any single den. Kittens are
eating solid food by 28 days but will nurse for 3-4 months.
Spanish Lynx become independent at 7 to 10 months. Females are
normally able to breed in their first winter. In a high-density
population, age at first reproduction depends upon when a female
acquires a territory. This normally occurs because of either
death or expulsion of a resident. One female did not reproduce
until five years of age, and this only occurred when the mother
died and left the territory vacant.
Spanish Lynx
prefer areas of native Mediterranean woodlands and thick,
shrubby areas, especially for resting during the day. They move
along the edges of meadows and more open grassland areas around
dusk and dawn to hunt. Only when the rabbit population crashes
due to viral outbreaks, do they look to other prey such as small
rodents, birds, and the young of wild boar, red deer, fallow
deer, chamois and moufflon sheep.
The decline
of the Spanish Lynx population since the 1960s has been
primarily caused by habitat loss and a decline of their main
prey species, the European rabbit. Nevertheless, there are some
areas where habitat quality and rabbit density appear
sufficient, yet no lynx are found. Particularly in these areas,
it seems that humans are directly responsible for an high level
of Spanish Lynx mortality.
The Spanish
government is in the process of developing a national
conservation strategy for the Iberian lynx, with the goal of
enabling the lynx to occupy as large a range as possible on a
permanent basis. Management measures will be applied first to
the largest population nuclei (the eastern Sierra Morena, the
Toledo Mountains, the corridors between these two zones, and
certain parts of Extremadura). Measures include completion of
detailed surveys of the conditions faced by each lynx
sub-population (land use, land ownership, habitat condition,
rabbit density); banning rabbit trapping; taking active steps to
increase rabbit populations (such as brush clearance); and
establishment of a captive breeding program (now underway).
There are
less than 100 Iberian Lynx left in the world today. The
population is becoming increasingly fragmented, so that it is
more and more of a challenge for cats to find each other to
mate. They are also forced to move through more and more
developed areas, and thus come into contact with humans and
vehicles. Besides habitat loss, major threats include road
development, being caught in traps meant for other animals, and
illegal shooting.
Efforts by ICONA (the Spanish National Nature Conservation
Institu te) to improve conditions in Donana National Park, one of
the last strongholds of this exquisite species, include
increasing rabbit numbers by improving habitat conditions as
well as removing some
grazing animals to decrease competition for food with rabbits.
In areas surrounding the Park, efforts are being made to decrease lynx's traffic fatalities,
and to eliminate trapping of rabbits
and other animals, and initiate a campaign of environmental
awareness. There are also plans to promote genetic exchange
through the creation of natural habitat corridors between
populations. Finally, a last ditch effort is being made to
establish a captive breeding group of Iberian Lynx, made up of
injured and non releasable animals.
Iberian Lynx are placed on Appendix I of CITES, and are listed
as critically endangered by the IUCN Red List. They are being
given the highest priority in terms of protection and research. |
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