منابع مشابه
Bird Mite Infestation
Mites in the genus Dermanyssus are external parasites of birds, rodents and other mammals. The most common member of this group is the Chicken Mite that infests poultry roosts and wild bird nests. The chicken mite feeds primarily at night when the birds return the nest or roast area. They hide during the day in nearby cracks, crevices and other protected sites. These mites are known to infest h...
متن کاملBird evolution
The evolution of birds is thought to have begun in the Jurassic Period, with the earliest birds derived from theropod dinosaurs. Birds are categorized as a biological class, Aves. The earliest known species of class Aves is Archaeopteryx lithographica, from the Late Jurassic period, though Archaepteryx is not commonly considered to have been a true bird. Modern phylogenies place birds in the di...
متن کاملAdrian Bird
comprised populations that differ genetically in their response to the environment at spatial scales of around 600–800 km, undetected by microsatellite DNA variations. They caught cod from four populations within the Atlantic and looked at larval growth in the laboratory. Among all four populations, growth increased with food supply and temperature but the influence of changes in food and tempe...
متن کاملWhich Bird?
Where there is a birdstrike, there should have been a bird. Unfortunately, many reports on bird-strikes carefully recording type of aircraft and damage incurred are without reference to the bird. No bird remains had been collected or difficulties in getting these remains identified appeared unsurmountable. They are no longer. By a combination of macroscopical, microscopical and (in special case...
متن کاملBird Radiations
ed landscape with relatively few native birds. Its original host remains unknown, but unlike many islands, New Zealand had endemic mosquitoes, which could have coevolved with viruses. Another signifi cant disease because of its pandemic potential is avian infl uenza. The normal hosts are waterfowl, shorebirds, and seabirds. Sampling for infl uenza antibodies in Australian seabirds shows variati...
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ژورنال
عنوان ژورنال: The Writers' Workshop: A Fiftieth Anniversary Celebration
سال: 1986
ISSN: 0021-065X,2330-0361
DOI: 10.17077/0021-065x.3287