| Titre : | Ardea 88(2) - 2000 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
K. Kraaijeveld, Auteur ;
E. N. Nieboer, Auteur
Dans
Ardea (88(2) 2000)
This review Links published data on mitochondrial DNA phylogeography of three wader species breeding in the Arctic to the availability of suitable breeding habitat during the past 250 000 years. We argue that the breeding ranges of arctic waders[...]
Article
J. A. Masero, Auteur ;
A. Perez-Hurtado, Auteur ;
M. Castro, Auteur ;
G. M. Arroyo, Auteur
Dans
Ardea (88(2) 2000)
The use of intertidal mudflats and adjacent supratidal salinas by foraging waders was studied, including a time-foraging budget in winter and during the period prior to the spring migration. The predictions of three hypotheses that might explain[...]
Article
S. Nebel, Auteur ;
T. Piersma, Auteur ;
J. A. Van Gils, Auteur ;
A. Dekinga, Auteur ;
B. Spaans, Auteur
Dans
Ardea (88(2) 2000)
During southward migration the Wadden Sea is the meeting place of Red Knots Calidris canutus of two subspecies that breed in either western Siberia (C. c. canutus) or north Greenland and north-east Canada (C. c. islandica), but the details of th[...]
Article
I. Johnstone, Auteur ;
K. Norris, Auteur
Dans
Ardea (88(2) 2000)
We use an optimality model to describe prey choice by wintering Oystercatchers Haematopus ostralegus using different feeding methods. Birds fed on Common Cockles Cerastoderma edule, which they opened by either exclusively hammering or stabbing. [...]
Article
E. Fernandez-Juricic, Auteur
Dans
Ardea (88(2) 2000)
The purpose of this paper was to assess the effects of forest fragmentation on winter nock formation in a guild of insectivorous birds in 23 parks (0.23-118 ha) in the Madrid area, Spain. Flock size was positively affected by fragment size, the [...]
Article
M. Bertellotti, Auteur ;
P. Yorio, Auteur
Dans
Ardea (88(2) 2000)
We studied age-related differences in feeding behaviour and foraging success of Kelp Gulls Larus dominicanus feeding on fishery discards at trawl vessels in northern Patagonia, Argentina. Kelp Gulls consumed fish by direct capture and intraspeci[...]
Article
J. Kis, Auteur ;
A. Liker, Auteur ;
T. Szekely, Auteur
Dans
Ardea (88(2) 2000)
Lapwings Vanellus vanellus are ground-nesting waders and they protect their nests by aggressively attacking predators near their nests. We investigated the response of parents to natural predators and a dummy Hooded Crow Corvus [corone] cornix d[...]
Article
K. Kraaijeveld, Auteur
Dans
Ardea (88(2) 2000)
In their revision of the Dutch avifaunal list, Sangster et al. 1999 advocate the phylogenetic species concept and claim that this view is more compatible with evolutionary relationships than the traditional biological species concept. The author[...]
Article
A. Margalida, Auteur ;
J. Bertran, Auteur
Dans
Ardea (88(2) 2000)
Bearded Vultures Gypaetus barbatus began supplying material to their nests on average 111 d (range 91-126 d) prior to laying. Males were significantly more active that females. Heavy material (branches) was transported indistinctly in the talons[...]
Article
J. N. Kristiansen, Auteur ;
B. M. Petersen, Auteur
Dans
Ardea (88(2) 2000)
We studied Greylag Goose Anser anser nest distribution in relation to reed stem density in the Tommerby Fjord reedbed, Denmark, using aerial photography to locate nests. Digitised photographs were used to establish a relationship between spectra[...]
Article
A. Velando, Auteur ;
J. Graves, Auteur ;
J. Freire, Auteur
Dans
Ardea (88(2) 2000)
The European Shag Stictocarbo aristatelis is dimorphic in body size: males are 22% heavier than females. We used molecular techniques to sex of 25 male and 18 female chicks in colonies from the Cies Islands (NW Spain). Discriminant functions wer[...]
Article
J. Almeida, Auteur ;
J. P. Granadeiro, Auteur
Dans
Ardea (88(2) 2000)
Spatial foraging niches of a pariform guild in a cork-oak woodland were examined during winter and spring. Niche structure was described in terms of the niche dimensions foraging substrate, foraging height and part of tree, and seasonal changes [...]
Article
J. N. Kristiansen, Auteur ;
T. Fox, Auteur ;
G. Nachman, Auteur
Dans
Ardea (88(2) 2000)
The selectivity of Greenland White-fronted Geese Anser albifrons flavirostris feeding on Timothy Phleum pratense hayfields in Iceland during their spring staging was studied in three fields of different shoot density (high, medium and low) and d[...]
Article
K. Weidinger, Auteur
Dans
Ardea (88(2) 2000)
The breeding density of Blackcap was about four times higher in deciduous (D) riparian linear vegetation than in mixed (M) coniferous woodlots in the farmland of Eastern Bohemia, Czech Republic, over two years. Laying started and peaked about tw[...]
Article
A. Thessing, Auteur
Dans
Ardea (88(2) 2000)
This six years study focuses on the effect of environmental factors on Willow Tit (Parus montanus) nestling growth. For each brood, nestling growth during the growth period (day 1-12) was related to the amount of food and temperature during this[...]
