A review of the laelapid mites associated with terrestrial by Mašán, Peter, Fenďa, Peter

By Mašán, Peter, Fenďa, Peter

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Extra info for A review of the laelapid mites associated with terrestrial mammals in Slovakia, with a key to the European species. - 1

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Such factors probably kept the aurochs from using such areas as their habitats. The forest steppes, where somewhat milder living conditions usually prevailed, may have just qualified as aurochs living areas. Whether the aurochs occurred on any of the islands inside this distribution area probably depended on their accessibility from the main- Black Cyan Page 51 DISTRIBUTION AREA land and their size. In view of the fact that related wild cattle species, as well as domestic cattle, are able to swim, it is likely that the aurochs was also able to do this.

The digestion of food with the aid of several stomachs, combined with rumination, enables a ruminant to break down and utilize the many appetite-reducing and hard-to-digest components of grasses, herbs and broad-leaved trees. Although the ruminants, which at first lived mainly in the forests, were exclusively browsers4, the appearance and global expansion of savannas and grasslands, about 25 million years ago, resulted in the emergence of grazers4, ruminants that are geared to eating grass. In the beginning, the first species of grass-eating ungulates were not quite adapted to grazing (Webb 1977).

The bones included those of the Przewalski horse, the woolly rhinoceros, the Asian elephant and red deer. This is likely to be material from both the Pleistocene and the Holocene periods, which was dislodged by the river and lumped together elsewhere. No Chinese aurochs remains from the Neolithic period have ever been shown (Zhang Minghua 1984, Nelson 1990, Kwang-Chih Chang 1986), nor is there any evidence of local domestication. Watson (1961) describes how domesticated cattle appeared rather suddenly in the Yellow River area, around 2000 BC.

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