scholarly journals Corneal power and underwater accommodation in great cormorants (Phalacrocorax carbo sinensis)

2003 ◽  
Vol 206 (5) ◽  
pp. 833-841 ◽  
Author(s):  
G. Katzir
Keyword(s):  
Phalacrocorax Carbo ◽  
Corneal Power ◽  
Phalacrocorax Carbo Sinensis ◽  
Great Cormorants

scholarly journals Using stable isotopes to unravel and predict the origins of great cormorants (Phalacrocorax carbo sinensis) overwintering at Kinmen

2008 ◽  
Vol 22 (8) ◽  
pp. 1235-1244 ◽  
Author(s):  
Yuan-Mou Chang ◽  
Kent A. Hatch ◽  
Tzung-Su Ding ◽  
Dennis L. Eggett ◽  
Hsiao-Wei Yuan ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Phalacrocorax Carbo ◽  
Phalacrocorax Carbo Sinensis ◽  
Great Cormorants

scholarly journals Energy requirements of breeding great cormorants Phalacrocorax carbo sinensis

1995 ◽  
Vol 121 ◽  
pp. 1-9 ◽  
Author(s):  
D Grémillet ◽  
D Schmid ◽  
B Culik
Keyword(s):  
Energy Requirements ◽  
Phalacrocorax Carbo ◽  
Phalacrocorax Carbo Sinensis ◽  
Great Cormorants

Long-term changes in the ecosystem of a lake (Lake Strzyżminskie) and an island induced by a colony of Great Cormorants (Phalacrocorax carbo sinensis L.)

2015 ◽  
Vol 44 (3) ◽  
Author(s):  
Piotr Klimaszyk ◽  
Andrzej Brzeg
Keyword(s):  
Aquatic Ecosystems ◽  
Light Penetration ◽  
Phalacrocorax Carbo ◽  
Sambucus Nigra ◽  
Nitrogen And Phosphorus ◽  
Phalacrocorax Carbo Sinensis ◽  
Significant Enrichment ◽  
Great Cormorants ◽  
Long Term Impact

AbstractCormorants feed in aquatic ecosystems and transport a large amount of biomass and chemical substances to colonies or roosts situated on land adjacent to the water. This leads to significant enrichment of soils in nutrients. Some loads of nutrients may be transferred to a nearby lake. A long-term impact of cormorants may be followed by the destruction of vegetation beneath the colony. Within a few decades, cormorants lose places suitable for nesting or roosting and abandon the colonies. Then the content of nutrients in the soil decreases and natural regeneration of vegetation occurs. We found that despite the passage of several years since the abandonment of a cormorant colony, the concentration of nutrients in the soil remained high. Groundwater beneath the colony was also strongly enriched with nutrients. Thus, despite the absence of a bird being a source of nutrients, the area of the former colony constantly supplies nitrogen and phosphorus into the nearby lake. The occurrence of vegetation in the area of the former cormorant colony is limited to a few species. Nitrophilous black elder Sambucus nigra, usually creates a dense canopy preventing the light penetration, thereby reducing the growth of other plants.

Sexual differences in the diet of great cormorants Phalacrocorax carbo sinensis wintering in Greece

2009 ◽  
Vol 55 (3) ◽  
pp. 301-308 ◽  
Author(s):  
Vasilios Liordos ◽  
Vassilis Goutner
Keyword(s):  
Sexual Differences ◽  
Phalacrocorax Carbo ◽  
Phalacrocorax Carbo Sinensis ◽  
Great Cormorants

scholarly journals Diet of great cormorants Phalacrocorax carbo sinensis wintering in Malause (South-West France)

2004 ◽  
Vol 160 (2) ◽  
pp. 281-287 ◽  
Author(s):  
Frédéric Santoul ◽  
Jean-Baptiste Hougas ◽  
Andy J. Green ◽  
Sylvain Mastrorillo
Keyword(s):  
Phalacrocorax Carbo ◽  
South West ◽  
Phalacrocorax Carbo Sinensis ◽  
Great Cormorants

Diet spectrum of great cormorants (Phalacrocorax carbo sinensis L.) at the Donji Miholjac carp fishponds in eastern Croatia

2004 ◽  
Vol 50 (4) ◽  
pp. 173-178 ◽  
Author(s):  
Anđelko Opačak ◽  
Tihomir Florijančić ◽  
Dražen Horvat ◽  
Siniša Ozimec ◽  
Dragutin Bodakoš
Keyword(s):  
Phalacrocorax Carbo ◽  
Phalacrocorax Carbo Sinensis ◽  
Great Cormorants

scholarly journals Roosting Colony of Cormorants (Phalacrocorax Carbo Sinensis L.) as a Source of Nutrients for the Lake

2015 ◽  
Vol 14 (3) ◽  
pp. 111-119 ◽  
Author(s):  
Klimaszyk Piotr ◽  
Joniak Tomasz ◽  
Rzymski Piotr
Keyword(s):  
Chemical Elements ◽  
Freshwater Ecosystem ◽  
Phalacrocorax Carbo ◽  
Nitrogen And Phosphorus ◽  
Phalacrocorax Carbo Sinensis ◽  
Wielkopolski National Park ◽  
Great Cormorants ◽  
The Impact ◽  
Colony Area ◽  
Nitrogen Phosphorus

Abstract Since 2005, great cormorants have been observed on the Lake Góreckie (Wielkopolski National Park) shoreline. The population of these birds occurring within the lake has gradually increased. In autumn 2008, more than 100 individuals were observed. In the period 2009-2012 the number of birds occupying the island periodically exceeded 250 individuals. So far, there is no breeding colony of great cormorants, but the birds have established a roosting colony on the island. In the period 2009-2012 we conducted research on the impact of the colony of great cormorants on the accumulation of nitrogen, phosphorus and other elements in soils beneath the colony and transfer of chemical elements from the colony to a nearby freshwater ecosystem. Our results show that a relatively small and recent colony of great cormorants can significantly affect the chemistry of soil. Compared to a control, the soil beneath the colony was characterized by statistically higher concentrations of nitrogen and phosphorus. A significant accumulation of nutrients was observed in the topsoil zone (to a depth of about 20 cm). Enrichment of soil in chemical elements has resulted in their further transport to a nearby lake. Compared to the control, the groundwater and surface runoff from the colony area revealed several-fold higher concentrations of nitrogen and phosphorus. The maximum abundance of cormorants in the roosting colony was reflected in the elevated concentrations of nitrogen and phosphorus in the littoral water near the colony. Our study demonstrates that the roosting colony of great cormorants can play a significant role in accelerating the eutrophication of surface waters.

Molecular screening for bacteria and protozoa in great cormorants (Phalacrocorax carbo sinensis) nesting in Slovakia, central Europe

2016 ◽  
Vol 61 (3) ◽  
Author(s):  
Bronislava Víchová ◽  
Katarína Reiterová ◽  
Silvia Špilovská ◽  
Lucia Blaňarová ◽  
Zuzana Hurníková ◽  
...  
Keyword(s):  
Central Europe ◽  
Molecular Screening ◽  
Phalacrocorax Carbo ◽  
Phalacrocorax Carbo Sinensis ◽  
Great Cormorants

AbstractThis study brings the data about the occurrence of bacterial and protozoan pathogens in 32 great cormorants

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