The dramatic mortality events in seabird species such as common murres (Uria aalge
) in 2015/16 (tens of thousands of dead birds counted) were attributed to starvation and presumed to be a result of warming-induced effects on food supply (H.
O glydwch y fan hon, mi fedrwch weld y clogwyni serth lle mae'r llurs (Alca torda; Razorbill) a'r gwylogod (Uria aalge
; Guillemot) yn eistedd yn eu miloedd ar y grisiau sydd ar y creigiau yma.
In this study, 44 common murres (Uria aalge
) and 6 Western grebes (Aechmophorus occidentalis), naturally oiled by oceanic seeps off the coast of Ventura and Santa Barbara Counties, CA, USA, were assigned to 1 of 4 groups fed diets with varying levels (6.8% [no added oil], 11%, and 20%) and types (salmon, corn) of oil added to a partially purified basal diet.
Heavy metals contamination and body condition of wintering guillemots (Uria aalge
) at the Belgian coast from 1993 to 1998.
Male-male forced copulation, for example, has been well documented in several monogamous Arctic birds, including Common Murres (Uria aalge
) (Birkhead et al., 1985) and Ivory Gulls (Mallory et al., 2008; Kylin, 2011), and it has been correlated with increased extra-pair copulations in dominant males in at least one species, the Razorbill (Alca torda) (Wagner, 1992, 1996).
Non-breeders may visit colonies later in the season and for several years prior to breeding, as reported for Ancient Murrelet (Synthliboramphus antiquus) (Gaston 1992) and Common Murre (Uria aalge
), in which subadults tend to arrive earlier at the colony as they become older, and some subadults visit non-natal colonies prior to returning to their natal colony to breed (Halley and Harris 1993; Halley and others 1995).
Behavioural adaptations to high density nesting in the Common Guillemot Uria aalge
. Animal Behaviour 26:321-331.
Tissue distribution of perfluorinated surfactants in common Guillemot (Uria Aalge
) from the Baltic sea.
Within-and between-year variation in the juvenile survival of Common Guillemots Uria aalge
.--Ibis 149: 472-481.
Nicholas said the nearby Saltee Islands provide a sanctuary for many seabirds, including guillemots (Uria aalge
) and razorbills (Alca torda) (http://www.salteeislands.info/Saltees%20page.htm).
Our empirical implementation values the conservation of the common murre (Uria aalge
) population in Galicia (northwest Spain).
Ar hyn o bryd wrthi'n cyrraedd yn ol mae'r adar mor fel y gwylogod (Uria aalge
) a'r llursod (Alca torda) ac erbyn hyn maen nhw'n dychwelyd yn ddyddiol i'r creigiau serth, dramatig sydd 'na yn Ynys Lawd.