The pilot study was a success, as 15 LTDUs were captured via night-lighting, along with 1 LTDU and 1 white-winged scoter (Melanitta
fused) using overwater mist nets during the day.
de ganchos por hilera 14 14 13-15 Largo del cuello * 2.1 2.1 1.0-3.0 Ancho del cuello 430 300 200-500 Largo de los lemniscos * 2.1 2.4 1.3-4.0 Largo del receptaculo 3.2 2.4 1.2-2.6 de la proboscide * Largo testiculo anterior 860 800 300-1700 Ancho testiculo anterior 670 400 100-800 Largo testiculo posterior 980 800 200-1600 Ancho testiculo posterior 620 400 100-800 Ancho de las gladulas de 300 300 200-600 cemento Hospedero Larus dominicanus Melanitta
Nesting ecology of white-winged scoters (Melanitta
fusca deglandi) at Redberry Lake, Saskatchewan.
Bedload transport and other physical forcing variables (e.g., erosion processes) were primarily responsible for the differences across sampling stations; however, differential predation by sea ducks (Melanitta
nigra [L.] and Clangula hyemalis [L.]), especially on clams <10 mm SL, across the study area may have added to the observed differences in density.
Many Arctic sea birds, such as Velvet Scoter (Melanitta
fusca), Common Eider (Somateria mollissima), Arctic Tern (Sterna paradisaea), Ruddy Turnstone (Arenaria interpres), Ringed Plover (Charadrius hiaticula), Razorbill (Alca torda), and Black Guillemot (Cepphus grylle), are widely spread and breed in the eastern part of the Gulf of Finland and in the Baltic Sea (Cramp and Simmons, 1978; Malchevsky and Pukinsky, 1983; Bubyreva et al., 1993; Noskov et al., 1993; Iovchenko et al., 2002; Shilin et al., 2014; Cherenkov et al., 2016).
Grebe or Tachybaptus ruficollis Milhafre, Milvus milvus or Red kite or milhano Milvus migrans black kite Narceja Gallinago Common snipe gallinago Nebri Falco peregrinus Peregrine falcon Negrola Melanitta
nigra Common scoter Noitibo Caprimulgus Nightjar europaeus or C.
The worst casualty was the Common Scoter duck (Melanitta
nigra), whose feeding technique of diving just below the surface of Carmarthen Bay led it straight into the middle of some of the worst slicks.
With any luck, the bellowing is soon replaced by the whistling wings of surf scoters (Melanitta
perspicilatta), the relentless whe-oo-hoo of black scoters (Melanitta
nigra), and boisterous ow-owooolee of long-tailed ducks (Clangula hyemalis) buzzing the decoys in the early morning light.
Based on 31 years of monitoring of autumn migrating waterfowl on the southern coast of Finland, Eurasian wigeon Anas penelope, common teal, tufted duck Aythya fuligula, velvet scoter Melanitta
fusca and common goldeneye have delayed their migration, which might have repercussions for adult survival due to varying hunting and predation pressures along the migration routes (Lehikoinen & Jaatinen 2012).
Sin embargo, fueron desplazados del primer lugar del orden jerarquico de abundancia por Melanitta
The Common Scoter (Melanitta
nigra) is a large sea duck, 43-45cm long.
olor (Gmelin), mute swan I O Dendrocygna bicolor (Vieillot), I R fulvous whistling-duck Histrionicus histrionicus N R (Linnaeus), harlequin duck Lophodytes cucullatus (Linnacus), I O hooded merganser Melanitta
fusca (Linnaeus), N R white-winged scoter M.