| Titre : | Wildfowl 64 - 2014 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
H. Glyn Young, Auteur ;
R. P. Young, Auteur ;
F. Razafindrajao, Auteur ;
Abdallah Labia Bin Aboudou, Auteur ;
J. E. Fa, Auteur
Dans
Wildfowl (64 2014)
Madagascar still retains extensive wetlands important for fishing, hunting andagriculture. They also support a high proportion of the island's globally threatened endemic birds. However, as a result of widespread modification through human activ[...]
Article
Murray Williams, Auteur ;
Alan J. D. Tennyson, Auteur ;
Dalice Sim, Auteur
Dans
Wildfowl (64 2014)
Measurements of major bones from three island populations (New Zealand mainland, Auckland Islands, Chatham Island) of extinct mergansers presently known as Mergus australis indicate that birds from Chatham Island differed in size and proportion [...]
Article
Jonathan T. Coleman, Auteur
Dans
Wildfowl (64 2014)
The breeding biology of Black Swans Cygnus atratus ringed on the Gold Coast of southeast Queensland, Australia, was studied from 2007-2012. Numbers breeding ranged from 13-23 pairs per annum and included between 23-39 recorded breeding attempts [...]
Article
Dmitrijs Boiko, Auteur ;
Hakon Kampe-Persson, Auteur ;
Julius Morkunas, Auteur
Dans
Wildfowl (64 2014)
A review of the literature on Whooper Swans Cygnus cygnus breeding in the Baltic states indicates that the swans are recolonising areas where they once bred historically. In recent years, the number of breeding birds has increased from two pairs[...]
Article
Leif Nilsson, Auteur
Dans
Wildfowl (64 2014)
The Whooper Swan Cygnus cygnus was a rare breeding species in Sweden during the early years of the 20th century, when total numbers likely consisted of only 20 pairs. Recent decades have however seen a marked increase in numbers and a spread in [...]
Article
Larry J. Hindman, Auteur ;
William F. Harvey, Auteur ;
Linda E. Conley, Auteur
Dans
Wildfowl (64 2014)
During the 1980s and 1990s, non-native Mute Swans Cygnus olor increased dramatically in the Maryland (USA) portion of the Chesapeake Bay. As a method to slow further population growth, we tested the effectiveness of coating eggs in incubation wi[...]
Article
Larry J. Hindman, Auteur ;
Robert L. Tjaden, Auteur
Dans
Wildfowl (64 2014)
Concerns surrounding the ecological impacts from increasing numbers of non-native Mute Swans Cygnus olor have led some management agencies in the United States to implement control efforts directed at reducing populations of this invasive specie[...]
Article
Diana Solovyeva, Auteur ;
Sergey Vartanyan, Auteur
Dans
Wildfowl (64 2014)
The breeding biology of Bewick's Swans Cygnus columbianus bewickii nesting on Ayopechan Island in the Chaun River delta, Chukotka, northeast Russia was monitored from 2002-2013 inclusive, which coincided with a marked increase in the number of s[...]
Article
Sylvia K. Osterrieder, Auteur ;
Michael A. Weston, Auteur ;
Randall W. Robinson, Auteur ;
Patrick J. Guay, Auteur
Dans
Wildfowl (64 2014)
Dive duration generally increases with body size in animals including wildfowl. Therefore, diving behaviour may vary between the sexes in sexually size dimorphic species, such as the extremely sexually size dimorphic Musk Duck Biziura lobata. Ho[...]
Article
Craig R. Ely, Auteur ;
William J. L. Sladen, Auteur ;
Heather M. Wilson, Auteur ;
Susan E. Savage, Auteur ;
Kristine M. Sowl, Auteur ;
Bill Henry, Auteur ;
Mike Schwitters, Auteur ;
James Snowden, Auteur
Dans
Wildfowl (64 2014)
North American Tundra Swans Cygnus c. columbianus are composed of two well-recognised populations: an Eastern Population (EP) that breeds across northern Canada and north of the Brooks Range in Alaska, which migrates to the eastern seaboard of t[...]
Article
Anthony D. Fox, Auteur ;
Jorgen P. Kjeldsen, Auteur ;
Mark Desholm, Auteur ;
Palle A. F. Rasmussen, Auteur ;
Thorsten J. S. Balsby, Auteur ;
Henning Heldbjerg, Auteur
Dans
Wildfowl (64 2014)
Analysis of data relating to calling Spotted Crakes Porzana porzana, input to the Danish Citizen Science portal DOFbasen, suggested that on controlling for observer effort, national numbers reported annually have remained reasonably stable durin[...]
Article
Zhao Xumao, Auteur ;
Roller Maming, Auteur
Dans
Wildfowl (64 2014)
Analysis of data published in the China Bird Report (CBR) and other literature between 1979 and 2013, along with our own field observations, found that the Ferruginous Duck Aythya nyroca now occurs throughout most of China. This contrasts with t[...]
Article
Matthew T. Haugen, Auteur ;
Larkin A. Powell, Auteur ;
Mark P. Vrtiska, Auteur
Dans
Wildfowl (64 2014)
Knowledge of the factors which influence the spatial distribution of duck harvest would be useful to managers when setting dates for the duck hunting seasons. Here we used changes in mean latitude of harvest to represent changes in distribution [...]
Article
Lukasz Kajtoch, Auteur ;
Rafal Bobrek, Auteur
Dans
Wildfowl (64 2014)
The Goosander Mergus merganser occurs mainly in the Holoarctic boreal zone but isolated populations also exist in the Alps, the Balkans and in central Asia. In the late 20th century, the breeding distribution extended to the Carpathian Basin in [...]
Article
Jón Einar Jónsson, Auteur ;
Morten Frederiksen, Auteur ;
Alan D. Afton, Auteur
Dans
Wildfowl (64 2014)
Lesser Snow Geese Chen caerukscens caerulescens (hereafter Snow Geese) use two wintering habitats in southwest Louisiana. Snow Geese in coastal marshes generally have larger bodies and proportionally thicker bills, longer skulls and longer culme[...]
