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#1 05 April 2016 15:46:43

Wolf
Без пяти минут зоолог
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Дарвиновская лисица (Lycalopex fulvipes)

Darwin’s fox is one of the smallest fox species in the world, with a stout frame, elongated body and short legs. The muzzle is small and thin and extends into a rather rounded forehead, and the tail is relatively short and bushy. The thick coat is a dark grizzled grey to almost black colour, with a distinctive rusty-red colour on the lower legs and around the ears. The abdomen, chest, underside of the muzzle and the inside of the ears are a pale cream to white colour, and the tail is dark grey.

Darwin's fox does not interbreed with the other Lycalopex species, only lives in forests, and is smaller and darker-colored than the other species. In 1990 a small population of Darwin's fox was found on the mainland in the forested Nahuelbuta National Park, indicating that the fox was not endemic to the island. According to Yahnke et al., in their 1996 article published in the Journal of the Society for Conservation Biology, analysis of mitochondrial DNA of Darwin's fox and the gray fox showed two patterns, indicating Darwin's fox was a new species, closely related to the Sechuran fox. Also according to Yahnke (1995; et al.1996) the present restricted range is a relict of a much wider former range. Zoologists noted the distinctiveness in the ecological niche, appearance, and behavior of this species. Darwin's fox is differentiated from the gray fox in being darker; having shorter legs; a broader, shorter skull; smaller auditory bullae; a more robust dentition; and a different jaw shape and style of premolar occlusion.

Darwin's fox has a vast diet. In dense forests, where it exists, the foxes hunt for mammals, reptiles, beetles, and invertebrates. Sometimes it selects fruits and berries. Birds and amphibians to a lesser degree are also consumed. It sometimes eats carrion, but it mostly eats live animals and fruit. This makes it mostly an omnivore, sometimes a scavenger.

It is believed that there are only 250 Darwin's foxes on Chiloé Island and up to 70 on the mainland, and they are listed as critically endangered by the World Conservation Union. Fragmentation of forest adjacent to the national park and on the island is a concern for their conservation, and feral dogs may pose the greatest threat to their survival by spreading disease or directly attacking. Persecution by people who think that the foxes attack domestic fowls, though they pose little threat, is also a potential problem.

http://upload.wikimedia.org/wikipedia/commons/f/ff/Darwin%27s_Fox_area.png

http://cdn2.arkive.org/media/88/88149ABF-5782-4F18-B090-3D460F7DB65B/Presentation.Large/Darwins-fox-lying-on-ground.jpg

http://cdn2.arkive.org/media/92/92A28D49-7B87-4467-9985-5BED13BF0A95/Presentation.Large/Wild-Darwins-fox.jpg

Отредактировано Wolf (05 April 2016 16:26:36)


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#2 05 April 2016 16:28:22

Wolf
Без пяти минут зоолог
Зарегистрирован: 13 January 2009
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Re: Дарвиновская лисица (Lycalopex fulvipes)

Опять же, не нашел информации по поводу социальной структуры этих зверей. Так же был бы признателен, если бы скинули информацию по поводу их размеров.


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