2 edition of Selection of feeding sites by overwintering dark-bellied brent geese branta bernicla bernicla (L.). found in the catalog.
Selection of feeding sites by overwintering dark-bellied brent geese branta bernicla bernicla (L.).
Simon John Lane
Thesis (Ph.D.), University of East Anglia, School of Environmental Sciences, 1994.
Brent geese breed in the far north. This is their migration story. There are two distinct races of brent geese. Dark-bellied brent geese breed in northern Russia and spend the winter in southern and eastern England. Pale-bellied brent geese breed mostly in Canada and Greenland and . The compact, rather short-necked Brant is an attractive small goose with a black head, white necklace, and rich brown body brightening to white under the tail. They winter in flocks in bays, estuaries, and lagoons, where they eat eelgrass and other aquatic vegetation. They nest in the Arctic in wetlands thick with grasses and sedges. Flocks give pleasing calls reminiscent of Sandhill Cranes.
Segregation of Brent Geese Branta bernicla wintering and staging in Puget Sound and the Strait of Georgia AUSTIN REED, MICHAEL A. DAVISON and DONALD K. KRAEGE The distribution o f Brent Geese from different breeding stocks was studied in Puget Sound and the Strait o f Georgia from autumn to spring Breeding origins wereCited by: Brent Goose (Branta bernicla) Brent Geese are a small goose, with a largely dark plumage and a contrasting white rear end. Two forms occur, dark-bellied and pale-bellied. Dark-bellied Brent Geese breed in Siberia and migrate to the UK in the winter. They can be found on coastal waters, mudflats and coastal grasslands.
The dynamics were investigated of the world population of Dark-bellied Brent Geese (Branta b. bernicla, L.), which winter in western Europe and reproduce on the Siberian tundra. The world population fluctuated between approximately , and , individuals in the last decade of the 20th century―after recovering from an extremely low. Dark-bellied brent goose (Branta bernicla bernicla) individuals, representing an average of 2% of the GB population (5 year peak mean //3) Grey plover (Pluvialis squatarola) E Atlantic/W Africa – wintering individuals, representing an average .
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Feeding Areas for Dark-bellied Brent Geese in and around SPAs WWT Research Report 1 1 Introduction The Dark-bellied Brent Goose Branta bernicla bernicla is a winter visitor to Britain from its breeding grounds in Siberia (Ebbinge et al.
Almost the entirepopulation of Dark-bellied Brent Geese winters on theFile Size: KB. The occurrence and extent of nighttime feeding by Dark-bellied Brent Geese Branta bernicla bernicla on salt marshes adjacent to their tidal roost site were assessed on the north Norfolk coast.
Dark-bellied Brent Goose Branta bernicla bernicla. The Dark-bellied Brent Goose breeds along the Arctic coasts of Russia and winters exclusively along the coasts of Western Europe, the majority concentrated at sites along the Atlantic west coast of France, the south and east coasts of England, southwest Netherlands and the Wadden Sea.
Brent Goose cm; male g, female g#R; wingspan cm. Unmistakable. Underparts vary from nearly black to very pale grey, and white necklace someti. Introduction. Over dark-bellied brent geese (Branta bernicla bernicla) currently overwinter on southern UK shores (Cranswick et al., ).Twenty-one harbours and estuaries between the Exe and the Humber each have night-time offshore roosts of –22 by: The brant, or brent goose (Branta bernicla), is a species of goose of the genus Branta.
The black brant is a pacific North American subspecies. The Brent System, a major oilfield, was named after the species.
5 Further reading. 6 External links. Wintering at the Wadden Sea, Germany. Feeding in Long Island Sound, : Anatidae. Abstract. Seasonal changes in the distribution and feeding behaviour of dark-bellied brent geese Branta b.
bernicla (L.) and the biomass of their food plants were studied in three successive winters on the Norfolk coast. The data was used, in conjunction with published information, to show how depletion, productivity and mortality of food plants drive the pattern of habitat switching in this Cited by: The distribution of Dark-bellied Brent Geese Branta b.
bernicla moulting on the Taimyr Peninsula, in the Russian arctic, varies between years depending on whether the birds had a successful. Branta bernicla nigricans darker: abdomen and flanks dark brown with white feather edges on flanks.
White patches on neck meet on foreneck. Branta bernicla hrota paler: abdomen and flanks whitish with dark barring on rear flanks.
Juvenile: White edges to underparts, less white markings on throat. Brent Goose Branta bernicla Check out the full taxonomy and distribution of Brent Goose on HBW Alive.
HBW Alive contains information on Descriptive notes, Voice, Habitat, Food and Feeding, Breeding, Movements, Status and Conservation plus a list of bibliographical references for this species account.
Focus On: winter geese – part 2. Publish date: 10/02/ The 'Branta' geese form an extremely attractive group of birds, with most interest in recent years focussed on 'brent geese' and 'canada geese': the former for potential species 'splits' and the latter for the identification of vagrants amongst wild geese flocks in northwest Scotland and Ireland.
we captured dark-bellied brent geese in the wintering area of Ole´ron Island (45 N, 1 W, France), by using a cannon net (Bub ).
We caught the geese on the beach, close to a watering area where brents came in small ﬂocks. We determined sex by cloacal examination and distin-guished juveniles (ﬁrst-year) from birds in.
datasets have provided data to the NBN Atlas for this subspecies. Browse the list of datasets and find organisations you can join if you are interested in participating in a survey for species like Branta bernicla subsp. bernicla (Linnaeus, ). The brent goose is a small, dark goose - of similar size to a mallard.
It has a black head and neck and grey-brown back, with either a pale or dark belly, depending on the race. Adults have a small white neck patch. It flies in loose flocks along the coast, rather than in tight skeins like grey geese. It is an Amber List species because of the.
Brent Goose Branta bernicla The dark-bellied subspecies of the brent goose is one of the characteristic birds of Norfolk’s coastal saltmarshes in winter. Tens of thousands of these confiding, conversational birds visit the county every year, fleeing the harsh winter in their arctic Russian breeding grounds.
Dark-bellied Brent Goose Branta (bernicla) bernicla. The majority of Brent Geese wintering in Norfolk belong to the Dark-bellied form bernicla but careful scanning of the flocks will often reveal the presence of one or two Pale-bellied Brent Geese (form hrota) or even a Black Brant (form orientalis, formerly called nigricans but that name has now been bagged by the newly-described Grey.
Scaring brent geese Branta bernicla from fields of winter wheat with tape RONALD W. SUMMERS* AND GIL HILLMANt *ADAS Central Science Laboratories, Tangly Place, Worplesdon Laboratory, Worplesdon, Guildford, Surrey and tMinistry of Agriculture, Fisheries and Food, ADAS Wildlife and Storage Biology, Medwyn House, Mountfield Road, Lewes, Sussex, UK by: Dominant and subordinate individuals in a group may benefit from the stability of the social dominance organisation, avoiding excessive waste of time and energy in aggressive interactions and reducing injury risks.
Nevertheless, the likely evolutionary incentive for individuals to become, and furthermore to stay, dominant may destabilise such dominance hierarchies. In this context, the Cited by: 2. Black Brant Branta (bernicla) orientalis (formerly nigricans) x Dark-bellied Brent Goose Branta (bernicla) bernicla.
Many of the Black Brants that winter in western Europe have produced hybrids with Dark-bellied Brent Geese. Separating pure adult Black Brants from pure Dark-bellied Brent Geese is fairly straightforward but hybrids can be much less so.
Where wild geese fly. Sat,The vastly more numerous dark-bellied race, Branta bernicla bernicla, has up tobirds and breeds in Siberia and winters in England and.
important sites for Brent Geese in the Solent include Beaulieu Estuary, Southampton Water and Newtown Estuary (Calbrade et al., ). There are three races of Brent Geese, the dark-bellied Branta bernicla bernicla, the pale-bellied Branta bernicla hrota and the black Branta bernicla nigrans.
Only the dark-bellied race occurs regularly in the File Size: 2MB.b). For wintering Dark-bellied Brent Geese Branta bernicla bernicla, social dominance for a given winter was signiﬁcantly correlated with body mass, morphological size and body condition during the previous winter (Poisbleau et al.
a). Hence free-living goose populations are a pertinent model to test dominance preservation and explore.change in habitat use: endangered Brent Geese Branta bernicla hrota losing their main food resource.
Ibis (4): Ebbinge, B.S., and Spaans, B. The importance of body reserves accumulated in spring staging areas in the temperate zone for breeding in dark-bellied brent geese Branta b. bernicla in the high Arctic. Journal of.