BREEDING ECOLOGY OF GREAT CORMORANT (PHALACROCORAX CARBO) ON THE OBYTICHNA SPIT IN 2015
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چکیده
منابع مشابه
In-air hearing of the great cormorant (Phalacrocorax carbo)
Many aquatic birds use sounds extensively for in-air communication. Regardless of this, we know very little about their hearing abilities. The in-air audiogram of a male adult great cormorant (Phalacrocorax carbo) was determined using psychophysical methods (method of constants). Hearing thresholds were derived using pure tones of five different frequencies. The lowest threshold was at 2 kHz: 1...
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breeding biology of the great cormorants phalacrocorax carbo sinensis is assessed in thesouthern coasts of the caspian sea, iran during the years 2008-2010. about 84 nests located on 63 trees wereexamined. nests were built on large trees located in abbas abad marsh, gilan province. initially, eggs werefound on first week of april and egg laying continued until the last week of may. clutch size ...
متن کاملScreening of protozoan and microsporidian parasites in feces of great cormorant (Phalacrocorax carbo)
The global population of great cormorants (Phalacrocorax carbo L.) is on the rise. These birds, characterized by rapid metabolism, can deposit large quantities of feces, and because they breed on the land but forage on water, both terrestrial and aquatic environments can be simultaneously affected by their activities. The contribution of great cormorants in the dispersal of bacterial and viral ...
متن کاملPrey detection by great cormorant (Phalacrocorax carbo sinensis) in clear and in turbid water.
The scattering and absorption of light by water molecules and by suspended and dissolved matter (turbidity) degrade image transmission and, thus, underwater perception. We tested the effects on visual detection of prey size and distance (affecting apparent prey size) and of low-level water turbidity in hand-reared great cormorants (Phalacrocorax carbo sinensis) diving for natural prey (fish) in...
متن کاملPurification, crystallization, preliminary X-ray diffraction and molecular-replacement studies of great cormorant (Phalacrocorax carbo) haemoglobin
Haemoglobin is the iron-containing oxygen-transport metalloprotein that is present in the red blood cells of all vertebrates. In recent decades, there has been substantial interest in attempting to understand the structural basis and functional diversity of avian haemoglobins. Towards this end, purification, crystallization, preliminary X-ray diffraction and molecular-replacement studies have b...
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ژورنال
عنوان ژورنال: Acta Biologica Sibirica
سال: 2015
ISSN: 2412-1908
DOI: 10.14258/abs.v1i3-4.874