| Titre : | Ardea 91(1) - SPR 2003 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
M. M. Rehfisch, Auteur ;
H. Insley, Auteur ;
B. Swann, Auteur
Recommendations exist for reclaiming parts of the Special Protection Areas (SPAs) within the Moray Basin, Scotland that hold nine and six species of overwintering shorebird in nationally and internationally important numbers, respectively. Over [...]
Article
W. R. P. Bourne, Auteur ;
N. P. Ashmole, Auteur ;
K. E. L. Simmons, Auteur
Bird bones found in guano deposits and caves on Ascension include remains of six small night herons, described as a new endemic species Nycticorax olsoni. It is concluded that the similarities between the endemic flightless Ascension Rail Atlant[...]
Article
G. Gilbert, Auteur ;
G. Tyler, Auteur ;
K. W. Smith, Auteur
The first assessment of both nestling diet composition and selection of fish prey by Bitterns Botaurus stellaris in Britain. We provide quantitative information on the diet of nestling Bitterns, examine the factors influencing diet composition a[...]
Article
K. M. Lindstrom, Auteur ;
I. T. van der Veen, Auteur ;
B. A. Legault, Auteur ;
J. O. Lundstrom, Auteur
The fitness effects of parasites on their hosts are often unknown. For most avian viruses, no records of clinical disease have been associated with infections. In this study we tested if birds would alter their behaviour during an infection with[...]
Article
K. L. Wiebe, Auteur ;
C. L. Elchuk, Auteur
We studied the behaviour of Northern Flickers Colaptes auratus rearing nestlings to see whether factors such as parental age and gender, nestling age, ambient temperature and brood size explained the quantity and type of parental care to nestlin[...]
Article
A. Barbosa, Auteur ;
S. Merino, Auteur ;
J. J. Cuervo, Auteur ;
F. de Lope, Auteur ;
A. P. Moller, Auteur
Extravagant tails of many male birds are morphological structures affected by both natural and sexual selection. Elongated tail feathers may be more vulnerable to damage than feathers of short length. Feather breakage may thus act as a constrain[...]
Article
Y. Verkuil, Auteur ;
T. M. Van der Have, Auteur ;
J. Van Der Winden, Auteur ;
I. I. Chernichko, Auteur
Wader species migrating through the Sivash (Ukraine) use hypersaline and brackish lagoons. We studied the use of the two habitat types, and focused on the profitability of Brine Shrimp Artemia salina, prey species in hypersaline lagoons for Dunl[...]
Article
M. Zenatello, Auteur ;
L. Serra, Auteur ;
N. Baccetti, Auteur
Article
J. Kloskowski, Auteur
In Red-necked Grebes Podiceps grisegena breeding on fish-ponds in SE Poland, mates contributed equal parental effort as long as the young were brooded on the parent's back. Later, when the young were able to swim on their own but still depended [...]
Article
F. Alvarez, Auteur
The hypotheses of increased egg strength and incubation efficacy were tested in relation to egg size and shape of Common Cuckoos Cuculus canorus parasitising Rufous Bush Chats Cercotrichas galactotes in southern Spain. The found positive relatio[...]
Article
G. C. Scherini, Auteur ;
G. Tosi, Auteur ;
L. A. Wauters, Auteur
We monitored social behaviour, nest site selection, clutch size and survival, and breeding success (number of fledglings per successful hen in late August) in two Alpine Rock Ptarmigan Lagopus mutus helveticus populations in the South-central Al[...]
Article
I. J. Stenhouse, Auteur
At East Bay, Southampton Island, Nunavut, Canada, Lesser Snow Geese Anser caerulescens families move through areas favoured by nesting Sabine's Gulls Larus sabini. An interaction between these species that resulted in the loss of part of a Sabin[...]
Article
J. A. Robinson, Auteur ;
N. S. Aldridge, Auteur ;
L. Wright, Auteur ;
L. G. Culzac, Auteur
Reproductive parameters of Mallard Anas platyrhynchos were investigated in relation to vegetative development, physical characteristics and invertebrate food abundance of a complex of flooded gravel quarries in southern Britain. Breeding pair de[...]
Article
N. Duda, Auteur ;
W. Chetnicki, Auteur ;
P. Jadwiszczak, Auteur
Intra-specific nest parasitism in Black-headed Gull is reported based on several lines of indirect evidence. The within-clutch egg size asymmetry seems to be a component of protective mechanism against parasitism. Results of our observations and[...]
Article
S. Fenoglio, Auteur ;
M. Cucco, Auteur ;
G. Malacarne, Auteur
In birds, carotenoids deposited in the eggs can influence the progeny's prospects of survival. As a potentially limiting resource, carotenoids should be allocated optimally by the mother during egg production. The Moorhen Gallinula chloropus pro[...]
Article
E. Minguez, Auteur ;
D. Oro, Auteur
Procellariformes breed mainly on inaccessible islands and many species nest underground reducing egg or chick losses caused by predation. Nevertheless, Procellariformes show low reproductive rates. In a four years study of breeding European Stor[...]
