Tag: all of Branta

International Single Species Action Planfor the Conservation of the Light-bellied Brent Goose(East Canadian High Arctic population)(Branta bernicla hrota)

Light-bellied Brent Goose (Branta bernicla) Science Article 1 abstract The East Canadian High Arctic (ECHA) Light-bellied Brent Goose Branta bernicla hrota breedsin Canada’s eastern Queen Elizabeth Islands with the great majority wintering on the coastline of theisland of Ireland and smaller numbers on the Channel Islands and the northern coasts of France andSpain. It is […]

Seasonal Enumeration of Fecal Coliform Bacteria from the Feces of Ring-Billed Gulls (Larus delawarensis) and Canada Geese (Branta canadensis)

Canada Goose (Branta canadensis) Science Article 1 abstract Water suppliers have often implicated roosting birds for fecal contamination of their surface waters. Geese and gulls have been the primary targets of this blame although literature documenting the fecal coliform content of these birds is quite limited. To determine the actual fecal coliform concentrations of these […]

Dark-bellied Brent Geese Branta bernicla bernicla in Britain, 1976-1987.

Brant Goose (Branta bernicla) Science Article 5 abstract The numbers of Dark-bellied Brent Geese wintering in Britain have increased from 47 500 in 1976-77 to 90-95 000 in the early and mid-1980s. The proportion of the European population in Britain had been largely constant during this time, at 40-48%, though reaching 56-59% in some winters. […]

Food exploitation patterns by Brent Geese Branta bernicla during spring staging.

Brant Goose (Branta bernicla) Science Article 4 abstract The exploitation pattern of a salt marsh community by Brent Geese in spring is discussed. The two main vegetation types on the salt marsh, one dominated by Puccinellia maritima and the other characterized by the presence of Plantago maritima and Triglochin maritima, are grazed very intensively, so […]

The applicability of age ratio and brood size counts in population dynamic studies of the Brent Goose Branta bernicla bernicla.

Brant Goose (Branta bernicla) Science Article 3 abstract In wintering Brent Geese, annual assessments of the proportion of juveniles and the mean brood size have been made since the 1950s, allowing population dynamic analyses. Field procedures have never been quantitatively explored and were studied in four areas along the Dutch Wadden Sea in 1975/76. Juveniles […]

Historical changes in black brant Branta bernicla nigricans use on Humboldt Bay, California

Brant Goose (Branta bernicla) Science Article 1 abstract We examined 70 years (1931-2000) of black brant Branta bernicla nigricans abundance on Humboldt Bay, California. We used linear regression to convert count data to a standard variable (use-days) for evaluating hypotheses that explain temporal trends in brant use. Winter and spring brant-days on Humboldt Bay declined […]

Dark-bellied Brent Geese Branta bernicla bernicla forego breeding when Arctic foxes Alopex lagopus are present during nest initiation

Brant Goose (Branta bernicla) Science Article 8 abstract 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 Arctic Fox Alopex lagopus abundance. Lemming abundance conformed to […]

The significance of female body stores for egg laying and incubation in Dark-bellied Brent Geese Branta bernicla bernicla

Brant Goose (Branta bernicla) Science Article 10 abstract The probability of successful breeding by Brent geese in the Arctic appears to be positively correlated with the mass of females when they depart from spring staging areas in North-western Europe. To clarify the mechanism behind this relationship we investigated the significance of flown-in female body stores […]

Inland pastures are an appropriate alternative for salt-marshes as a feeding area for spring-fattening Dark-bellied Brent Geese Branta bernicla.

Brant Goose (Branta bernicla) Science Article 9 abstract On the Dutch Wadden Sea island Texel, spring-fattening Dark-bellied Brent Geese Branta bernicla fed almost exclusively inland on improved grasslands, whereas the remainder of the flyway population utilised coastal salt-marshes elsewhere in the Wadden Sea. There are indications that inland pastures are ‘second choice habitat’ during this […]

Regulation of numbers of Dark-bellied Brent Geese Branta bernicla bernicla on spring staging sites.

Brant Goose (Branta bernicla) Science Article 6 abstract The usage of the Boschplaat salt-marsh on Terschelling over a 30-year period by Brent Geese Branta b. bernicla, is compared with that on improved grassland on Texel. Natural salt-marsh turns out to be a preferred spring staging habitat. Spring feeding on grassland is a new phenomenon. An […]