Common Murre (Uria aalge)

2021 ◽  
Author(s):  
David G. Ainley ◽  
David N. Nettleship ◽  
Anne E. Storey
Keyword(s):  
Uria Aalge ◽  
Common Murre

Common Murre (Uria aalge)

2002 ◽  
Author(s):  
David G. Ainley ◽  
David N. Nettleship ◽  
Harry R. Carter ◽  
Anne E. Storey
Keyword(s):  
Uria Aalge ◽  
Common Murre

scholarly journals Ecological interactions and habitat modification in nesting Common Murres, Uria aalge

1996 ◽  
Vol 6 (3) ◽  
pp. 261-269 ◽  
Author(s):  
Julia K. Parrish ◽  
Robert T. Paine
Keyword(s):  
Reproductive Output ◽  
Habitat Modification ◽  
Haliaeetus Leucocephalus ◽  
Uria Aalge ◽  
Ecological Interactions ◽  
Bald Eagles ◽  
Predator Removal ◽  
Common Murre ◽  
Corvus Caurinus ◽  
Common Murres

SummarySeabird populations suffer from a variety of natural and human-induced sources of mortality and loss of lifetime reproductive output. On the outer coast of Washington State, Common Murre Uria aalge populations have been in decline for approximately the last decade and are currently reproductively active only at Tatoosh Island. These murres nest in two basic habitat types: crevices (25% of the population) and larger cliff-top subcolonies (75%). Murres in cliff-top subcolonies have suffered dramatic reductions in reproductive success in recent years relative to conspecifics nesting in the crevices, primarily due to egg predation by Glaucous-winged Gulls Larus glaucescens and Northwestern Crows Corvus caurinus, facilitated by the presence of Bald Eagles Haliaeetus leucocephalus. Because predator removal is not feasible and creation of additional crevice habitat is difficult, expensive and potentially ineffective, we have designed a temporary habitat modification (the “silk forest”) which replaces the natural vegetation cover and modifies the interaction between murres and eagles. Within the test subcolony, murres nesting under and immediately adjacent to the silk forest produced nearly twice as many eggs per square metre as their conspecifics nesting in adjacent exposed-ground areas.

Common Murre (Uria aalge)

2002 ◽  
Author(s):  
David G. Ainley ◽  
David N. Nettleship ◽  
Harry R. Carter ◽  
Anne E. Storey
Keyword(s):  
Uria Aalge ◽  
Common Murre

Exceptional variation in the appearance of Common Murre eggs reveals their potential as identity signals

The Auk ◽  
2021 ◽  
Author(s):  
Tim R Birkhead ◽  
Jamie E Thompson ◽  
Amelia R Cox ◽  
Robert D Montgomerie
Keyword(s):  
Uria Aalge ◽  
Quantitative Evidence ◽  
Breeding Group ◽  
Common Murre ◽  
Trimodal Distribution ◽  
Common Murres ◽  
Egg Traits ◽  
Breeding Groups ◽  
Different Parts

Abstract We studied the ground colors and maculations of 161 Common Murre (Uria aalge) eggs laid by 43 females in 3 small breeding groups on the cliffs of Skomer Island, Wales, in 2016–2018. Both the colors and maculations varied much more among than within females, providing quantitative evidence for the egg traits that might facilitate the parents’ ability to identify their own eggs on the crowded breeding ledges where the density is typically ~20 eggs m–2. Ground colors had a trimodal distribution of hue values (whitish to pale brown, pale blue, or vivid blue-green) and maculations ranged from none to complex squiggles and blotches. The eggs laid by each female in different years were similar to one another, and replacement eggs laid by females within years were also more similar to their first egg than to other eggs in the same breeding group. Egg appearance did not differ among the 3 breeding groups that we studied. Our findings thus support anecdotal observations that, within and between years, female Common Murres lay eggs that have similar ground colors and maculations. We do not, however, find evidence that there is much difference among the eggs laid in different parts of a colony.

scholarly journals The common murre (Uria aalge), an auk seabird, reacts to underwater sound

2020 ◽  
Vol 147 (6) ◽  
pp. 4069-4074 ◽  
Author(s):  
Kirstin Anderson Hansen ◽  
Ariana Hernandez ◽  
T. Aran Mooney ◽  
Marianne H. Rasmussen ◽  
Kenneth Sørensen ◽  
...  
Keyword(s):  
Uria Aalge ◽  
Underwater Sound ◽  
Common Murre ◽  
The Common

Energy Metabolism in the Locomotor Muscles of the Common Murre (Uria aalge) and the Atlantic Puffin (Fratercula arctica)

The Auk ◽  
1987 ◽  
Vol 104 (4) ◽  
pp. 733-739 ◽  
Author(s):  
M. Benjamin Davis ◽  
Helga Guderley
Keyword(s):  
Krebs Cycle ◽  
Columba Livia ◽  
Oxygen Storage ◽  
Uria Aalge ◽  
Common Murre ◽  
Fratercula Arctica ◽  
Metabolic Systems ◽  
Flight Muscles ◽  
The Common ◽  
Atlantic Puffin

Abstract To compare the metabolic systems that support the combination of flying and diving with those used to support burst flying and sustained flying, myoglobin concentrations and maximum enzyme activities were determined for selected enzymes of glycolysis, the Krebs cycle, and amino acid metabolism in the pectoral, supracoracoideus, and sartorius muscles of the Common Murre (Uria aalge), Atlantic Puffin (Fratercula arctica), Rock Dove (Columba livia; hereafter "pigeon"), and Ring-necked Pheasant (Phasianus colchicus). Glycolytic enzyme levels in the flight muscles were lower in the murre and the puffin than in the pheasant, while both glycolytic and Krebs-cycle enzyme levels resembled those in the pigeon. We believe puffins and murres do not rely extensively on anaerobic glycolysis during diving. In concordance with a role in oxygen storage for diving, the levels of myoglobin in the flight muscles of murres and puffins were higher than those in pigeons or pheasants. They were lower than published values for penguins, however. In contrast to the trends for pigeon and pheasant muscles, the alcid sartorius muscles had a considerably lower aerobic orientation than the flight muscles.

PREY DENSITY AND THE BEHAVIORAL FLEXIBILITY OF A MARINE PREDATOR: THE COMMON MURRE (URIA AALGE)

Ecology ◽  
2007 ◽  
Vol 88 (8) ◽  
pp. 2024-2033 ◽  
Author(s):  
Ann M. A. Harding ◽  
John F. Piatt ◽  
Joel A. Schmutz ◽  
Michael T. Shultz ◽  
Thomas I. Van Pelt ◽  
...  
Keyword(s):  
Prey Density ◽  
Behavioral Flexibility ◽  
Uria Aalge ◽  
Marine Predator ◽  
Common Murre ◽  
The Common

The ectoparasites of some marine birds from Bamfield Marine Station, British Columbia, with particular reference to the common murre, Uria aalge (Pont.)

1979 ◽  
Vol 57 (10) ◽  
pp. 1980-1984 ◽  
Author(s):  
John T. Ballard ◽  
Richard A. Ring
Keyword(s):  
British Columbia ◽  
Host Species ◽  
Uria Aalge ◽  
Marine Birds ◽  
Common Murre ◽  
Marine Station ◽  
The Common

Six species of birds from the region of the Bamfield Marine Station, British Columbia, were examined for ectoparasites. A total of seven species of Mallophaga belonging lo five genera (Saemundssonia, Austromenopon, Cummingsielli, Anatoecus, and Anaticola) were recovered. One flea (Mioctenopsylla traubi, Siphonaptera), leather mites of the genus Zachvatkinia, other mites of the genera Ameronothrus. Cymbaeremaeus, and Rhinonyssus, and ticks of the genus Ixodes were also identified. Each host species and its ectoparasites are discussed separately. Differences in the ectoparasite burdens of juveniles and adults of both sexes of the common murre, Uria aalge (Pont.), are compared and contrasted.

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