Morus serrator: BirdLife International

2018 ◽  
Author(s):  
Keyword(s):  
Morus Serrator

Australasian Gannet (Morus serrator)

2020 ◽  
Author(s):  
Carles Carboneras ◽  
David Christie ◽  
Francesc Jutglar ◽  
Arnau Bonan ◽  
Ernest Garcia
Keyword(s):  
Morus Serrator

Food and Feeding Range of the Australasian Gannet Morus Serrator (Gray)

1985 ◽  
Vol 85 (4) ◽  
pp. 231-239 ◽  
Author(s):  
Elspeth J. Wingham
Keyword(s):  
Food And Feeding ◽  
Morus Serrator

scholarly journals Geographical, temporal and individual factors influencing foraging behaviour and consistency in Australasian gannets

2020 ◽  
Vol 7 (5) ◽  
pp. 181423
Author(s):  
Marlenne A. Rodríguez-Malagón ◽  
Elodie C. M. Camprasse ◽  
Lauren P. Angel ◽  
John P. Y. Arnould
Keyword(s):  
Foraging Behaviour ◽  
Environmental Changes ◽  
Gps Tracking ◽  
Behavioural Consistency ◽  
Southeastern Australia ◽  
Factors Influencing ◽  
Spatio Temporal ◽  
The Individual ◽  
Breeding Seasons ◽  
Morus Serrator

Foraging is a behaviour that can be influenced by multiple factors and is highly plastic. Recent studies have shown consistency in individual foraging behaviour has serious ecological and evolutionary implications within species and populations. Such information is crucial to understand how species select habitats, and how such selection might allow them to adapt to the environmental changes they face. Five foraging metrics (maximum distance from the colony, bearing from the colony to the most distal point, tortuosity index, total number of dives and mean vectorial dynamic body acceleration were obtained using GPS tracking and accelerometry data in adult Australasian gannets ( Morus serrator ) from two colonies in southeastern Australia. Individuals were instrumented over two breeding seasons to obtain data to assess factors influencing foraging behaviour and behavioural consistency over multiple timescales (consecutive trips, breeding stages and years) and habitats (pelagic, mixed pelagic and inshore, and inshore). Colony, breeding stage and year were the factors which had the greatest influence on foraging behaviour, followed by sex. Behavioural consistency, measured as the contribution of the individual to the observed variance, was low to moderate for all foraging metrics (0.0–27.05%), with the higher values occurring over shorter timescales. In addition, behavioural consistency was driven by spatio-temporal factors rather than intrinsic characteristics. Behavioural consistency was higher in individuals foraging in inshore than pelagic habitats or mixed pelagic/inshore strategy, supporting suggestions that consistency is favoured in stable environments.

Changes in the diet of the Australasian gannet (Morus serrator) in response to the 1998 mortality of pilchards (Sardinops sagax)

2000 ◽  
Vol 51 (4) ◽  
pp. 349 ◽  
Author(s):  
A. Bunce ◽  
F. I. Norman
Keyword(s):  
Marine Mammals ◽  
Mass Mortality ◽  
Piscivorous Fish ◽  
Mortality Event ◽  
Important Prey ◽  
Schooling Fish ◽  
Before And After ◽  
Sardinops Sagax ◽  
Morus Serrator

The diet of Australasian gannets (Morus serrator) breeding in Port Phillip Bay was investigated before and after a mass mortality of pilchards (Sardinops sagax) in southern Australian waters in 1998. Gannets usually feed on inshore pelagic schooling fish, such as pilchards and barracouta (Thyrsites atun), and to a lesser extent on other species. Pilchards represented ~60% of the gannet diet examined before the spread of pilchard deaths into Victorian waters, but this component declined to 5% following the mortality event. This reduction was compensated by a substantial increase in the amount of barracouta taken, supporting the view that the gannet is a flexible forager. However, the 1998 mortality of pilchards is likely to have wider implications since pilchards are an important prey for other piscivorous fish, seabirds and marine mammals.

scholarly journals Dive strategies and foraging effort in the Australasian gannet Morus serrator revealed by underwater videography

2011 ◽  
Vol 442 ◽  
pp. 255-261 ◽  
Author(s):  
GE Machovsky Capuska ◽  
RL Vaughn ◽  
B Würsig ◽  
G Katzir ◽  
D Raubenheimer
Keyword(s):  
Foraging Effort ◽  
Morus Serrator
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