Food supplementation by an invasive fleshy-fruited shrub sustains body condition of a native frugivorous bird during winter

Integrative Zoology
Tobias Nicolas RojasSusana I Peluc

Abstract

Birds tend to adjust their behavior and physiology to changes in food availability in their environment. Seasonal fluctuation of food resources may act as an energetic challenge, augmenting hypothalamus-pituitary-adrenal axis (HPA axis) activity, leading to an increase in corticosterone concentrations and promoting the metabolism of energy stores. Plant invasions may alter seasonal food fluctuations by providing a food supply during scarce seasons. This could attenuate the energetic challenge, reducing HPA axis activity and the metabolism of reserves. Using a system with seasonal fluctuation in food availability, we tested if fruit supplementation by the invasive fleshy-fruited Pyracantha angustifolia during the season of native fruit scarcity decreases the consumption of energy stores through activity attenuation of the HPA axis. We measured changes in body condition and circulating corticosterone (CORT) concentration in Turdus chiguanco occurring at sites both invaded and not invaded by P. angustifolia over 3 time periods that correspond to the periods prior to, during and after highest fruit production of the plant. Fruit scarcity in the ecosystem appears as an energetic challenge for T. chiguanco, given that body mass, fat ...Continue Reading

References

Mar 21, 1996·Nature·J M McNamara, A I Houston
Jan 5, 2002·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·A S KitayskyJ F Piatt
Mar 7, 2003·General and Comparative Endocrinology·Mare LõhmusBengt Silverin
Oct 1, 1954·The Journal of Pathology and Bacteriology·C H LACK, D G WAILLING
Jan 25, 2005·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·L Michael Romero, J Michael Reed
Dec 17, 2005·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·Mare LõhmusBengt Silverin
Sep 8, 2006·American Journal of Physical Anthropology·Colin A ChapmanToni E Ziegler
Jun 4, 2008·Physiological and Biochemical Zoology : PBZ·Alan A CohenMartin Wikelski
Mar 15, 2012·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Christopher P JohnstoneAlan Lill
May 23, 2012·Trends in Ecology & Evolution·Alan A CohenJennifer A Dunne
Jan 11, 2013·Physiological and Biochemical Zoology : PBZ·Scott DaviesPierre Deviche
May 2, 2013·General and Comparative Endocrinology·Hiroyuki KaiyaMikiya Miyazato
Jun 22, 2013·Scientific Reports·K E PlummerJ D Blount
Apr 12, 2014·Hormones and Behavior·Cas EikenaarSusanne Jenni-Eiermann
Nov 12, 2014·Frontiers in Zoology·Lise RuffinoErkki Korpimäki
Mar 1, 2016·Ecology and Evolution·Holly L HenninOliver P Love
Feb 9, 2019·Revista de la Facultad de Ciencias Médicas·Raul Martin Chaparro, Sebastian Genero

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Citations

Feb 6, 2020·Ecology and Evolution·Silvia B Lomáscolo, Douglas J Levey

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