scholarly journals The effect of learning on heart rate and behavior of European starlings (Sturnus vulgaris )

2019 ◽  
Vol 331 (9) ◽  
pp. 506-516
Author(s):  
Laura W. Glassman ◽  
 Carl E. Hagmann ◽  
Muhammad A. Qadri ◽  
Robert G. Cook ◽  
L. Michael Romero
Keyword(s):  
Heart Rate ◽  
Sturnus Vulgaris ◽  
European Starlings ◽  
And Behavior

The effects of molt on the flight performance, body mass, and behavior of European starlings (Sturnus vulgaris): an experimental approach

1997 ◽  
Vol 75 (7) ◽  
pp. 1135-1146 ◽  
Author(s):  
John P. Swaddle ◽  
Mark S. Witter
Keyword(s):  
Body Mass ◽  
Experimental Approach ◽  
Sturnus Vulgaris ◽  
Flight Performance ◽  
European Starlings ◽  
Reduced Body ◽  
Body Mass Regulation ◽  
Behavioral Parameters ◽  
Feather Molt ◽  
And Behavior

The physiological and energy costs of avian molt are well documented, but indirect consequences such as changes in flight performance have received less attention. Here, we report two experiments that investigated flight performance, body mass regulation, and behavior in captive starlings (Sturnus vulgaris). In the first experiment, we found a U-shaped change in take-off escape performance during natural molt: birds ascended at the shallowest trajectories during midmolt. Birds' body mass was also reduced during molt. In the second experiment, we manipulated the plumage of starlings to simulate different stages of flight-feather molt. This allowed us to separate the aerodynamic costs of feather loss from the physiological costs of feather synthesis normally associated with plumage growth. Through observations of flight (take-off, aerial maneuverability, and level flapping-flight speed) and behavioral parameters, we demonstrated that birds in simulated molt have reduced flight performance and reduced body mass. These birds also decrease the time spent performing energetically costly activities and seek areas of relative protection. In the longer term, some aspects of performance return to pretreatment levels, implying compensation for the plumage manipulations. Our results demonstrate that molt incurs significant functional costs that may play an important role in the adaptive radiation of molt strategies and molt patterns observed in avian species.

14 Weight load does not affect equine stress as measured by heart rate, salivary cortisol, and behavior

2015 ◽  
Vol 35 (5) ◽  
pp. 388
Author(s):  
M.M. Ernst ◽  
L.R. Hamm ◽  
M.L. Santiago ◽  
C.A. Shea Porr
Keyword(s):  
Heart Rate ◽  
Salivary Cortisol ◽  
And Behavior

Nestling European Starlings (Sturnus vulgaris) adjust their begging calls in noise

Bioacoustics ◽  
2021 ◽  
pp. 1-20
Author(s):  
Maheshi E. Dharmasiri ◽  
Colleen A. Barber ◽  
Andrew G. Horn
Keyword(s):  
Sturnus Vulgaris ◽  
European Starlings

Castration does not decrease nonreproductive aggression in yearling male European starlings (Sturnus vulgaris)

2003 ◽  
Vol 43 (3) ◽  
pp. 394-401 ◽  
Author(s):  
Rianne Pinxten ◽  
Elke De Ridder ◽  
Maarten De Cock ◽  
Marcel Eens
Keyword(s):  
Sturnus Vulgaris ◽  
European Starlings

Evidence for sexy sons in European starlings (Sturnus vulgaris)

2005 ◽  
Vol 58 (4) ◽  
pp. 375-382 ◽  
Author(s):  
Helga Gwinner ◽  
Hubert Schwabl
Keyword(s):  
Sturnus Vulgaris ◽  
European Starlings
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