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Перевод: tawny owl

[существительное]
неясыть обыкновенная [зоол.]

Тезаурус:

1. On the other hand, it has already been shown that the tawny owl produces higher levels of modification than other species (Raczynski Ruprecht, 1974; Lowe, 1980), so that caution is needed before generalizing too far on what owls do or do not do.
2. This pattern is present also in the tawny owl and little owl assemblages (Fig. 3.3), and the numbers of isolated teeth are also greater, indicating increasing bone destruction of the jaws.
3. Moreover, not all the bones from a single carcase may be regurgitated in the same pellet, for in a study on tawny owl digestion using marked carcases, Lowe (1980) showed that some bones may be retained for 24 to 48 hours while others from the same animal were regurgitated earlier.
4. After a single trample event, it was observed that the structure of fresh tawny owl pellets broke down, no longer protecting the bones inside them.
5. For this experiment, small mammal bones were extracted from a tawny owl assemblage from Cornwall, England.
6. Tawny owl (Strix aluco).
7. The species assemblages of Verreaux and spotted eagle owls, tawny owl, kestrel and hen harrier have a deficiency of postcrania, perhaps due to preferential destruction of these elements.
8. The sample from Wales came from the same locality as the short-eared owl and tawny owl pellet samples, and the kestrel was hunting over much the same area as these species.
9. Percentage loss of prey from tawny owl pellets was found to be greater in summer than in winter (Lowe, 1980), and this could relate both to the greater numbers of immature rodents taken as prey, the bones of which are less mineralized and therefore easier to digest (Lowe, 1980), and to the likelihood of the birds producing the pellets being themselves immature In the case of the great horned owl it has been found that the stomach pH in immature birds is lower than that of adults (Grimm Whitehouse, 1963) and there is therefore greater destruction of bone and loss of prey.
10. The tawny owl produces the most representative prey assemblage from its habitat, including rare species, but the barn owl preserves the original community equitability more closely by concentrating on the more common species at the expense of missing the rare species.
11. It is one of the most specialized feeders amongst the owls in contrast to the closely related tawny owl, which is one of the least specialized species.
12. The tawny owl does not usually produce large concentrations of pellets because of its habit of using different trees each day for roosting, and so all of these samples are either from scattered locations or were collected over considerable periods of time.
13. The size spectrum of tawny owl prey is similar to that of the two British samples of barn owl, so that the size variation of the prey within a wide ranging predator like the barn owl is greater than the prey size variation between it and other predators.