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 […]
Category: Anseriformes
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 […]
Pink-footed Goose Anser brachyrhynchus (Greenland/Iceland population) in Britain1960/61-1999/2000
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 […]
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 […]
A 39 year study of a Mute Sw an Cygnus olor population in the English Midlands.
Mute Swan (Cygnus olor) Science Article 1 abstract The results of a long-term study of the Mute Sw an Cygnus olor in a 1440 / km2 area of the English Midlands are presented . During the period 1961 to 1999 the population varied between 213 and 551 birds with the numbers of pairs each spring […]
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 […]
Ventilatory and circulatory responses to hyperthermia in the mute swan (Cygnus olor)
Mute Swan (Cygnus olor) Science Article 2 abstract Ventilatory parameters of mute swans were measured at thermoneutral conditions and during heat stress. Deep body temperature increased from 39-5 to 41-1 deg C. Breathing frequency increased 29 times, compared to the thermoneutral condition. Tidal volume decreased to 18 % of the pre-panting value, and the total […]
Wintering swans Cygnus spp. and Coot Fulica atra in the Oresund,South Sweden, in relation to available food recources
Mute Swan (Cygnus olor) Science Article 3 abstract In connection with the building of a Fixed Link (bridge-arti.cial island-tunnel) between Sweden and Denmark intensive studies of waterfowl and benthic fauna and .ora in the Oresund were undertaken as a part of the Environmental Impact Assessment Study. This paper analysis the occurrences of staging and wintering […]