Results 21 to 30 of about 2,568 (200)
The uropygial gland of the Great Cormorant (\(\textit {Phalacrocorax carbo}\))
Um die Ursachen des charakteristischen Flügelspreizverhaltens des Kormorans aufzuklären, wurde zunächst die Federstruktur des Kormorans mit der Federstruktur einer Tauchente (\(\textit {Aythya fuligula}\)) und einer Schwimmente (\(\textit {Mareca penelope}\)) verglichen.
Stangier, Nadine +3 more
openaire +2 more sources
The present investigation concerned with a thorough survey on the serious impact of the predaceous water birds from three selected fish farms in the country, namely Al- Manahel fish farm (presently called Al-Beilad) in Babylon province, Basrah University/
Sadek. A. Hussein +2 more
doaj +1 more source
The great cormorant (Phalacrocorax carbo) is a species that alters ecosystems significantly, mainly by depositions of guano, which changes the chemical properties of soil and can lead even to deforestation as well as have a significant impact on soil ...
Mateusz Oszust, Piotr Klimaszyk
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Biological invasions pose a serious threat to local flora and fauna and have negative impacts on ecosystems. Invasive parasites can also cause severe losses in aquaculture.
Nadav Davidovich +4 more
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Aim. To research the Great Cormorant (Phalacrocorax carbo L., 1758) ecology during the secondary expansion of the Baikal region.Material and Methods. The material for studying cormorant nutrition was 28 stomachs of harvested birds, visual observations of
E. N. Yelayev +7 more
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Soil conditions under great cormorant and grey heron colonies in a wetland: Effect on soil nematode abundance and trophic structure [PDF]
This study aimed to investigate how great cormorants and grey herons affect the density and trophic diversity of soil nematodes under breeding colonies located in Stawy Raszyńskie Nature Reserve (central Poland).
Dawid Kozacki +3 more
doaj +1 more source
The total mercury concentrations in four tissues (muscle, intestines, liver and kidney) of aquatic birds (cormorant - Phalacrocorax carbo and great crested grebe - Podiceps cristatus) and Eurasian buzzard (Buteo buteo) were determined by cold vapour ...
P. Houserova +5 more
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Effects of Great Cormorant Predation on Fish Populations and Fishery
The strong increase in number of Great cormorants Phalacrocorax carbo in Sweden in recent years has led to conflicts - particularly with fishery. This thesis focuses on the possible effects of cormorant predation on fish populations. In total, data from 15 lakes in South Sweden were included in this study while most studies were carried out in Lake ...
Engström, Henri
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Post-Breeding Dispersion and Migratory Routes of Dalmatian Pelican (Pelecanus Crispus), Great Cormorant (Phalacrocorax Carbo) and Eurasian Spoonbill (Platalea Leucorodia) from the North of Sinoe Lagoon (Danube Delta) [PDF]
In the period 2003-2006, a series of bird markings were performed in nesting colonies from the northern part of the Sinoie lagoon in the Danube Delta Biosphere Reserve.
Kiss J. Botond +4 more
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A study of the diet of the Great Cormorant Phalacrocorax carbo sinensis (fish species and size) in (1) different seasons (years), (2) breeding stages (incubation and chick rearing), and (3) breeding areas (center and edge) in the colony in the Dzierżno ...
Buttu Simone +3 more
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