scholarly journals Evidence of Incubation Trade‐offs in Leach's Storm‐Petrel ( Oceanodroma leucorhoa) : Ptilochronology as a Measure of Reproductive Investment in a Long‐lived Seabird

Ibis ◽  
2020 ◽  
Author(s):  
Lisa H. Elliott ◽  
Jennifer Grady ◽  
Jack Cerchiara ◽  
Mark F. Haussmann ◽  
Robert A. Mauck
Keyword(s):  
Reproductive Investment ◽  
Oceanodroma Leucorhoa ◽  
Trade Offs ◽  
Leach’S Storm Petrel ◽  
Storm Petrel

Leach's Storm-Petrel (Oceanodroma leucorhoa)

2020 ◽  
Author(s):  
Ingrid L. Pollet ◽  
Alexander L. Bond ◽  
April Hedd ◽  
Charles E. Huntington ◽  
Ronald G. Butler ◽  
...  
Keyword(s):  
Oceanodroma Leucorhoa ◽  
Leach’S Storm Petrel ◽  
Storm Petrel

Leach's Storm-Petrel (Oceanodroma leucorhoa)

1996 ◽  
Author(s):  
Charles E. Huntington ◽  
Ronald G. Butler ◽  
Robert Mauck
Keyword(s):  
Oceanodroma Leucorhoa ◽  
Leach’S Storm Petrel ◽  
Storm Petrel

First recorded breeding of Leach's Storm Petrel Oceanodroma leucorhoa in the Southern Hemisphere, at Dyer Island, South Africa

Ibis ◽  
2008 ◽  
Vol 141 (2) ◽  
pp. 327-330 ◽  
Author(s):  
Philip A. Whittington ◽  
Bruce M. Dyer ◽  
Robert J.M. Crawford ◽  
Anthony J. Williams
Keyword(s):  
South Africa ◽  
Southern Hemisphere ◽  
Oceanodroma Leucorhoa ◽  
Leach’S Storm Petrel ◽  
Storm Petrel

Diets and distributions of Leach’s storm-petrel (Oceanodroma leucorhoa) before and after an ecosystem shift in the Northwest Atlantic

2009 ◽  
Vol 87 (9) ◽  
pp. 787-801 ◽  
Author(s):  
A. Hedd ◽  
W. A. Montevecchi ◽  
G. K. Davoren ◽  
D. A. Fifield
Keyword(s):  
Trophic Levels ◽  
Oceanodroma Leucorhoa ◽  
Nestling Diet ◽  
Before And After ◽  
Ecosystem Shift ◽  
Capelin Mallotus Villosus ◽  
Leach’S Storm Petrel ◽  
Winter Diets ◽  
General Diet ◽  
Storm Petrel

The Grand Bank ecosystem has undergone significant shifts during the past two decades owing to oceanographic and fishing effects. Effects on upper trophic level seabirds (dietary shifts, reduced reproductive performance) have been mediated through changes in the biology and behaviour of capelin ( Mallotus villosus (Müller, 1776)), the focal forage species. To explore for effects at lower trophic levels, we combine dietary (1987–1988, 2003–2006) and distributional (1966–1990, 1998–1999) data for Leach’s storm-petrel ( Oceanodroma leucorhoa (Vieillot, 1818)), a small, abundant, and highly pelagic seabird. Fish and crustaceans formed the bulk of nestling diet at two colonies, with fish dominating in all sampling periods and years (occurrence >70%, reconstructed mass >75%). Five families were represented, but mature myctophids (glacier lanternfish ( Benthosema glaciale (Reinhardt, 1837)), horned lanternfish ( Ceratoscopelus maderensis (Lowe, 1839)), Protomyctophum arcticum (Lütken, 1892)) and sandlance (genus Ammodytes L., 1758) dominated. Crustaceans occurred frequently but typically comprised ≤10% by mass; Hyperia galba (Montagu, 1813) dominated this prey class. General diet composition was similar through time with birds relying heavily on myctophid fishes in 1987–1988 and 2003–2006. Crustacean diversity, however, declined with fewer species of hyperiid amphipods and no small euphausiids (genus Thysanoessa Brandt, 1851) consumed in 2003–2006. The latter parallels changes in spring diets of capelin and winter diets of murres (genus Uria Brisson, 1760) in the region. Associations of storm-petrels with deep water are consistent with the predominance of mesopelagic prey in their diets.

scholarly journals Marine Bird Attraction to Thermal Fronts in the California Current System

The Condor ◽  
2000 ◽  
Vol 102 (2) ◽  
pp. 423-427 ◽  
Author(s):  
Christopher J. Hoefer
Keyword(s):  
Coastal Upwelling ◽  
Current System ◽  
California Current ◽  
Similar Data ◽  
Marine Bird ◽  
California Current System ◽  
Oceanodroma Leucorhoa ◽  
Bird Density ◽  
Leach’S Storm Petrel ◽  
Storm Petrel

AbstractI relate marine bird density to the 55 strongest thermal fronts encountered during a survey of much of the eastern portion of the California Current and the adjacent coastal upwelling region. Elevated densities were recorded for all marine bird taxa except the Leach's Storm-Petrel (Oceanodroma leucorhoa). The variance explained by the regression models ranged from 3% for the Leach's Storm-Petrel to 85% for all marine birds. The response observed is notably stronger than previous analyses with similar data.

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