Barrows Goldeneye (Bucephala islandica) Science Article 2 abstract Moult characteristics and habitat selection of postbreeding male Barrow’s Goldeneye (Bucephala islandica) in northern Yukon van de Wetering, D. E, M.Sc. thesis, Simon Fraser Univ., Burnaby, BC, Canada. Download article download full text (pdf)
Category: Anatidae
A Management Plan for Barrow’s Goldeneye (Bucephala islandica; Eastern population)
Barrows Goldeneye (Bucephala islandica) Science Article 1 abstract The world distribution of Barrow’s Goldeneye (Bucephala islandica) consists of threeseparate populations: 150 000 to 200 000 birds in western North America (Eadie et al 2000),a resident population of 2000 in Iceland (Gardarsson 1978), and approximately 4500 birds ineastern North America (Savard and Dupuis 1999; Robert et […]
Processes underlying parental care decisions and creching behaviour: clarification of hypotheses
Barrows Goldeneye (Bucephala islandica) Science Article 5 abstract Processes underlying parental care decisions and creching behaviour: clarification of hypotheses Hannu Poysa and Markku Milonoff, Ann. Zool. Fennici 36: 125-128 Fennici 36: 125-128 Download article download full text (pdf)
BODY WEIGHT AND FEATHER GROWTH OF MALE BARROW’S GOLDENEYE DURING WING MOLT
Barrows Goldeneye (Bucephala islandica) Science Article 4 abstract We studied the timing, duration, and rate of wing molt of male Barrow’s Goldeneye (Bucephala islandica). The mean daily change in primary feather length was 2.6%, which is consistent with rates reported for other waterfowl species. The mean length of the flightless period was 31 days (range: […]
TRACING NUTRIENT ALLOCATION TO REPRODUCTION INBARROW’S GOLDENEYE
Barrows Goldeneye (Bucephala islandica) Science Article 6 abstract Naturally occurring stable isotopes in foodwebs can be used to determine the relative contributions of endogenous and exogenous nutrients to avian eggs in cases where birds move between isotopically distinct biomes or habitats to breed. We measured 13C and 15N values in somatic muscle tissues and eggs […]
Foraging behavior and site selection of Barnacle Geese Branta leucopsis in a traditional and newly colonized spring staging habitat
Barnacle Goose (Branta leucopsis) Science Article 3 abstract For three weeks in May the Svalbard Barnacle Geese Branta leucopsis stop to feed on the archipelagos of the Helgeland district, up to 50 km out to sea off western Norway. However, since 1980 an increasing part of the population has moved to a newly exploited agricultural […]
The flight energetics of barnacle geese (Branta leucopsis) underwild and captive conditions
Barnacle Goose (Branta leucopsis) Science Article 2 abstract Experimental data on the relationship between mean heart rate (fH) and mean rate of oxygen consumption (VO2) ofcaptive barnacle geese during flights in a wind tunnel are reviewed in terms of their capacity to predict the mean VO2 of wildbarnacle geese, based on recordings of their fH […]
Estimation of annual adult survival rates of Barnacle Geese Branta leucopsis using multiple resightings of marked individuals.
Barnacle Goose (Branta leucopsis) Science Article 5 abstract Accuracy and feasibility of three different methods to estimate adult annual survival rates in a migratory population of Barnacle Geese Branta leucopsis are examined. Estimates from resightings of birds marked with coloured leg-rings prve to be the more accurate. Bothe estimates derived from recoveries of metal-ringed birds, […]
Further Evidence of Long-term Pair Bonds in Ducks of the Genus Bucephala
Barrows Goldeneye (Bucephala islandica) Science Article 3 abstract In holarctic ducks, pair formation occurs during the winter or the spring migration, or both, and pair bonds are seasonal, usually lasting until the onset of incubation by the female (McKinney 1986). Because males desert their mates during incubation and leave thebreeding grounds for molting, it has […]
Breeding range translates into staging site choice: Baltic and Arctic Barnacle geese Branta leucopsis use different habitats at a Dutch Wadden Sea Island.
Barnacle Goose (Branta leucopsis) Science Article 8 abstract Habitat use of two populations of Barnacle Goose Branta leucopsis, one arctic and one temperate breeding, was studied on Schiermonnikoog, an island in the Dutch Wadden Sea, during winter and spring 1988/89. Although both populations have overlapping winter ranges, habitat choice on a smaller scale differed in […]