Surf Scoter (Melanitta perspicillata)

2015 ◽  
Author(s):  
Eric M. Anderson ◽  
Rian D. Dickson ◽  
Erika K. Lok ◽  
Eric C. Palm ◽  
Jean-Pierre L. Savard ◽  
...  
Keyword(s):  
Melanitta Perspicillata ◽  
Surf Scoter

Surf Scoter (Melanitta perspicillata)

1998 ◽  
Author(s):  
Jean-Pierre L. Savard ◽  
Daniel Bordage ◽  
Austin Reed
Keyword(s):  
Melanitta Perspicillata ◽  
Surf Scoter

Synchronous diving by surf scoter flocks

1985 ◽  
Vol 63 (11) ◽  
pp. 2516-2519 ◽  
Author(s):  
L. E. Schenkeveld ◽  
R. C. Ydenberg
Keyword(s):  
Statistical Method ◽  
Pronounced Effect ◽  
Melanitta Perspicillata ◽  
Data Support ◽  
Surf Scoter ◽  
Average Size ◽  
Larus Glaucescens

We studied the diving and surfacing synchrony of foraging flocks of wintering surf scoters (Melanitta perspicillata). Our data support the hypothesis that synchronous diving is an adaptation that reduces kleptoparasitism by glaucous-winged gulls (Larus glaucescens), which frequently attend foraging flocks. We developed a statistical method for measuring and comparing synchrony between flocks, and applied it to videotape records of 30 flocks. The results show that diving and surfacing are highly synchronous, and that there is a large variation between flocks in the degree of synchrony exhibited. The most pronounced effect is for surfacing synchrony to be higher in the presence of gulls. This seems to arise because individual birds curtail their dives so that less synchrony is lost between diving and surfacing during a group dive. This curtailment of dive length may lead to a reduction in the average size of prey captured.

scholarly journals Observations of Above-Surface Littoral Foraging in Two Sea Ducks, Barrow's Goldeneye, Bucephala islandica, and Surf Scoter, Melanitta perspicillata, in Coastal Southwestern British Columbia

2004 ◽  
Vol 118 (2) ◽  
pp. 264
Author(s):  
Deborah L. Lacroix ◽  
Kenneth G. Wright ◽  
Daniel Kent
Keyword(s):  
British Columbia ◽  
Water Surface ◽  
Foraging Behaviour ◽  
Mytilus Trossulus ◽  
Sea Ducks ◽  
Melanitta Perspicillata ◽  
Bucephala Islandica ◽  
Intertidal Mussel ◽  
Surf Scoter

Barrow's Goldeneyes (Bucephala islandica) and Surf Scoters (Melanitta perspicillata) were observed on four separate occasions, by three different observers, foraging on Bay Mussels (Mytilus trossulus) above the water surface. This unique foraging behaviour could be attributed to diurnal spring tides and reduced lower intertidal mussel abundance.

Duckling survival and use of space by surf scoter (Melanitta perspicillata) broods

Ecoscience ◽  
2008 ◽  
Vol 15 (1) ◽  
pp. 81-88 ◽  
Author(s):  
Louis Lesage ◽  
Austin Reed ◽  
Jean-Pierre L. Savard
Keyword(s):  
Use Of Space ◽  
Duckling Survival ◽  
Melanitta Perspicillata ◽  
Surf Scoter

Observations on the Diving of the Surf Scoter (Melanitta perspicillata)

The Auk ◽  
1957 ◽  
Vol 74 (3) ◽  
pp. 392-394 ◽  
Author(s):  
Philip S. Humphrey
Keyword(s):  
Melanitta Perspicillata ◽  
Surf Scoter

Surf Scoter (Melanitta perspicillata)

2015 ◽  
Author(s):  
Eric M. Anderson ◽  
Rian D. Dickson ◽  
Erika K. Lok ◽  
Eric C. Palm ◽  
Jean-Pierre L. Savard ◽  
...  
Keyword(s):  
Melanitta Perspicillata ◽  
Surf Scoter

Surf Scoter (Melanitta perspicillata)

2020 ◽  
Author(s):  
Eric M. Anderson ◽  
Rian D. Dickson ◽  
Erika K. Lok ◽  
Eric C. Palm ◽  
Jean-Pierre L. Savard ◽  
...  
Keyword(s):  
Melanitta Perspicillata ◽  
Surf Scoter

scholarly journals Goal-dependent current compensation and drift in surf scoter flocks

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Ryan Lukeman ◽  
Alexis Christie ◽  
Ronald C. Ydenberg
Keyword(s):  
Current Compensation ◽  
Surf Scoter
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