Pink-footed Goose (Anser brachyrhynchus) Science Article 2 abstract This report examines changes in the abundance and non-breeding distribution of the Greenland/Iceland population of Pink-footed Goose Anser brachyrhynchus during the period 1960/61 to 1999/2000. It also aims to evaluate the historical status of this population, to review published information on the ecology, population dynamics and conservation […]
Category: Anatidae
Intake rates, stochasticity, or onset of spring-what aspects of food availability affect spring migration patterns in Pink-footed Geese Anser brachyrhynchus?
Pink-footed Goose (Anser brachyrhynchus) Science Article 6 abstract Long-distance bird migration consists of several flight episodes interrupted by a series of resting and refuelling periods on stopover sites. We assessed the role of food availability as the determinant of staging decisions focusing on the following three aspects of food availability: intake rates, stochasticity in intake […]
Pre-nesting site use of satellite transmitter tagged Svalbard Pink-footed Geese Anser brachyrhynchus.
Pink-footed Goose (Anser brachyrhynchus) Science Article 5 abstract We deployed satellite transmitters (PTTs) to Pink-footed Geese Anser brachyrhynchus to discover pre-nesting sites on Svalbard. 14 adult male were caught in Vest Stadil Fjord, Denmark and fitted with PTTs powered by batteries (n = 11; 30 g) or by solar power (n = 3; 45 g), […]
Crop damage and management of the Pink-footed Goose Anser brachyrhynchus in Denmark
Pink-footed Goose (Anser brachyrhynchus) Science Article 3 abstract More than 25 000 Pink-footed Geese Anser brachyrhynchus migrate through and stage on sites on the West Coast of Jutland in Denmark every year in autumn and spring. There is currently concern at the rate of loss of suitable staging habitats, as well as problems of conflict […]
Spring migration strategies in Pink-footed Geese Anser brachyrhynchus an d consequences for spring fattening and fecundity.
Pink-footed Goose (Anser brachyrhynchus) Science Article 1 abstract Individu al variation in spring migration strategies was analysed for neckbanded Pink-footed Geese Anser brachyrhynchus migrating from Denmark (D) via stopover sites in the Trondheimsfjord area (T) in mid-Norway and Vesteralen (V) in northern Norway to the breeding grounds in Svalbard, 1990-97 . Body condition of marked […]
Diet and habitat use of Svalbard Pink-footed Geese Anser brachyrhynchus during arrival and pre-breeding periods in Adventdalen.
Pink-footed Goose (Anser brachyrhynchus) Science Article 4 abstract The feeding behaviour of Pink-footed Geese Anser brachyrhynchus was studied in Adventdalen, Svalbard during 15-28 May 2004 to determine habitat use of newly arrived birds based on their distribution in relation to the major vegetation types present. Goose numbers increased from initial arrival on 15 May to […]
Activities of tabanids (Diptera, Tabanidae) attacking domestic duck-Cairina moschata (Linnaeus) (Aves, Anatidae), introduced in a forest area in the Central Amazon, Manaus, Brazil
Muscovy Duck (Cairina moschata) Science Article 1 abstract Presented here are the feeding habits, attack behavior, daily and annual activity of adult of Phorcotabanuscinereus (Wiedeman, 1821), Chrysops laetus (Fabricius, 1805) and Phaeotabanus cajennensis (Fabricius, 1787), whilebiting a domestic duck, Cairina moschata (Linnaeus, 1758). The last two species were recorded for the first timeattacking birds. This […]
Elevated artifi cial nest sites for Mallard Anas platyrhynchos in Latvia
Mallard (Anas platyrhynchos) Science Article 8 abstract The use of elevated covered nest sites for Mallard Anas platyrhynchos was studied in 1999-2003 on coastal lakes and ponds of different origin. Within the 5-year period, a total of 723 checks of nest sites were made. Nest site occupancy by Mallard was much higher on ponds (46.8 […]
A Genetic and Cytogenetic Map for the Duck (Anas platyrhynchos)
Mallard (Anas platyrhynchos) Science Article 2 abstract Molecular genetic maps will provide insight into the genome organization and chromosomal localization of cloned genes and also a framework for the identification and localization ofmajor genes associated with economically important traits (Crittenden et al. 1993). The rapid progress being made in the development of genetic maps for […]
Activity budgets of mallards and american wigeon wintering in east-central Alabama
Mallard (Anas platyrhynchos) Science Article 5 abstract Mallards (Anus pkztyrhynchos) and American Wigeon (A. americana) were studied in Alabama from November through February 1983-85. Resting was the major activity of Mallards (39-54%) and feeding was the major activity of American Wigeon (45- 7 1%). Mallards increased feeding during the colder winter of 1983-84, but wigeon […]
