| Titre : | Ardea 86(1) - 1998 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
J. J. Sanz, Auteur ;
J. M. Tinbergen, Auteur ;
M. Orell, Auteur ;
S. Rytkonen, Auteur
Dans
Ardea (86(1) 1998)
We present data on the natural variation in daily energy expenditure (DEE, measured by the doubly labelled water technique) of individual female Great Tits Parus major tending their brood near the northern border of the species' distribution. We[...]
Article
T. Wesolowski, Auteur
Dans
Ardea (86(1) 1998)
Marsh Tits Parus palustris in Bialowieza National Park (E. Poland, 1985-97) were single brooded, laid their first eggs between 5 April and
Article
J. J. Sanz, Auteur
Dans
Ardea (86(1) 1998)
Composition and diversity of the nestling diet of Pied Flycatchers Ficedulo hypoleuca was compared among 17 European study areas that differed in habitat type (deciduous or coniferous forest). The most abundant foods were butterflies and moths ([...]
Article
M. Kersten, Auteur ;
L. W. Bruinzeel, Auteur ;
P. Wiersma, Auteur ;
T. Piersma, Auteur
Dans
Ardea (86(1) 1998)
We measured Basal Metabolic Rate (EMR) of 16 wader species (order Charadriiformes) on their wintering grounds in Africa. The allometric regression equation relating BMR to body mass: BMR (W) = 4.02 x M (kg)(0.724) runs parallel to that of waders[...]
Article
V. Dierschke, Auteur
Dans
Ardea (86(1) 1998)
During autumn migration, up to 1100 juvenile Dunlins Calidris alpina per day forage on the island of Helgoland (SE North Sea). Beds of washed up wracks and kelp sire used as a feeding habitat where they take kelp fly larvae (Coelopidae) at a hig[...]
Article
Z. Hegyi, Auteur ;
L. Sasvari, Auteur
Dans
Ardea (86(1) 1998)
Body mass of incubating females, their egg sizes, hatching success, hatchling masses and brood survival were recorded for individually colour-marked Lapwings Vanellus vanellus and Black-tailed Godwits Limosa limosa breeding on meadows in Kiskuns[...]
Article
I. Newton, Auteur ;
P. Rothery, Auteur
Dans
Ardea (86(1) 1998)
Overall, female Sparrowhawks improved in the mean number of young they raised per year up to the 5th year of life, and then declined. An attempt is made to find to what extent this mean trend is caused by similar trends in the breeding of indivi[...]
Article
B. Spaans, Auteur ;
H. J. Blijleven, Auteur ;
I. U. Popov, Auteur ;
M. E. Rykhlikova, Auteur ;
B. S. Ebbinge, Auteur
Dans
Ardea (86(1) 1998)
In an area north of the Pyasina delta in Taimyr (Russia), nest distribution, nest initiation and breeding success of Brent Geese Branta bernicla bernicla were studied in six successive summer seasons from 1990-1995 in relation to lemming and Arc[...]
Article
J. D'Elbee, Auteur ;
G. Hemery, Auteur
Dans
Ardea (86(1) 1998)
The diet and the foraging behaviour of the British Storm Petrel Hydrobates pelagicus during the breeding period were studied from proventriculus contents obtained from adults belonging to two populations in the Bay of Biscay. The observed prey h[...]
Article
M. Fischbacher, Auteur ;
B. Naef-daenzer, Auteur ;
L. Naef-daenzer, Auteur
Dans
Ardea (86(1) 1998)
Caterpillar frass dropping collections are compared with caterpillar density and biomass as estimated by branch samples tal,en from the same trees. A multiple regression model reveals (1) a linear relationship between mean caterpillar mass and f[...]
Article
R. W. Summers, Auteur ;
T. Piersma, Auteur ;
K. B. Strann, Auteur ;
P. Wiersma, Auteur
Dans
Ardea (86(1) 1998)
Winter north of the Arctic circle in northern Norway is colder, windier and there is less solar radiation than in eastern Scotland, at a latitude 13 degrees further south. We predicted from equations derived from heated taxidermic mounts that th[...]
Article
A. Carlson, Auteur ;
U. Sandstrom, Auteur ;
K. Olsson, Auteur
Dans
Ardea (86(1) 1998)
Cavities in trees are an important resource as nest sites or shelter for many birds and mammals. The aim of this study was to quantify the density of cavities, their characteristics, and their origin, and the implication these have on nest site [...]
Article
H. Hotker, Auteur
Dans
Ardea (86(1) 1998)
This paper investigates factors influencing the intraspecific variability of incubation periods in Avocets Recurvirostra avosetta. The length of the incubation period of 278 clutches ranged from 19 to 34 days with an average of 23.1 days. Incuba[...]
