منابع مشابه
Free-ranging birds Captive birds Songbirds Free-ranging birds Captive birds Waterfowl Free-ranging birds Captive birds Herons and allies Free-ranging birds Captive birds Pigeons and doves Free-ranging birds Captive birds
Cause Chlamydiosis refers to an infection with organisms of the genus Chlamydia sp., which are bacteria that live within animal cells. Chlamydia psittaci is the species generally associated with this disease in birds. The severity of the disease differs by the strain of C. psittaci and the susceptibility of different species of birds. As a result, chlamydiosis may range from an inapparent infec...
متن کاملAntitumour Activity of Poochendurappattai in Albino Rats in Albino Rats
The water extract of poochendurappattai was screened for antitumour activity at the doss of 5mg, 10mg, 20mg and 50 mg/kg body weight in rats against methylcholanthrene induced fibrosarcoma. There was 63% regression in the tumour weight at the doses of 10mg and 20 mg/kg body weight. This antitumour activity may be due to compounds like royaleanones since royaleanones are known to possess antican...
متن کاملKnocking birds
Students on a Florida campus who strayed too close to a mockingbird nest found themselves under personal attack, according to a new study. A species of songbird has been shown to identify individual people in a crowd in order to target them aggressively if they pose a threat to their nests. In the new study, by Douglas Levey and colleagues at the University of Florida, Gainsville, in the Procee...
متن کاملEarly birds
Concern is growing about the impact of climate change on organisms but there's much uncertainty about its effects. A new European study of two bird species does not provide good news.
متن کاملHow do albino fish hear?
Pigmentation disorders such as albinism are occasionally associated with hearing impairments in mammals. Therefore, we wanted to investigate whether such a phenomenon also exists in non-mammalian vertebrates. We measured the hearing abilities of normally pigmented and albinotic specimens of two catfish species, the European wels Silurus glanis (Siluridae) and the South American bronze catfish C...
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ژورنال
عنوان ژورنال: Emu
سال: 1918
ISSN: 0158-4197
DOI: 10.1071/mu918073b