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Keywords: Bird
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Journal Articles
J Exp Biol jeb.245316.
Published: 18 January 2023
... given that body condition influences the surface temperature of another body region (the eye region). We measured the surface temperature of the bills of song sparrows ( Melospiza melodia ) before, during, and after handling by an observer at 37°C ambient temperature. We fed five birds a restricted diet...
Journal Articles
J Exp Biol (2022) 225 (20): jeb244177.
Published: 26 October 2022
... and waking during daytime were weaker in winter than in summer. During daytime in winter, there were many instances where the birds were awake but not moving. Experimental sleep deprivation had no effect on the strength of the correlation between activity scores and EEG-based wake time. Overall, hourly...
Journal Articles
J Exp Biol (2022) 225 (5): jeb243601.
Published: 11 March 2022
... specialist. Behavioural acuity Interaural time difference Interaural level difference Bird Perceived physical cues Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659 EXC2177 Sound localization supports communication in both humans and animals...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (19): jeb242988.
Published: 6 October 2021
...Amanda M. Palecek; Megan V. Novak; Richard W. Blob ABSTRACT Wading behaviours, in which an animal walks while partially submerged in water, are present in a variety of taxa including amphibians, reptiles, mammals and birds. Despite the ubiquity of wading behaviours, few data are available...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (4): jeb235929.
Published: 24 February 2021
... cannot explain the relationship between fledging age and DHA. Similarly, previous studies have demonstrated that body growth and the accretion of encephalic DHA occur independently of each other in mammals and birds ( Hulbert et al., 2002 ; Speake and Wood, 2005 ). Speake and Wood (2005) hypothesize...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (1): jeb231290.
Published: 6 January 2021
... received less attention. In birds, asynchronous hatching creates challenging developmental conditions for the last-hatched chicks, but differential allocation in last-laid eggs might help to compensate this initial handicap. The relative importance and potential interaction between pre- and post-hatching...
Journal Articles
J Exp Biol (2020) 223 (23): jeb232496.
Published: 15 December 2020
.../s/47cc7823d5d998794644 . References Angelier , F. , Weimerskirch , H. , Barbraud , C. and Chastel , O. ( 2019 ). Is telomere length a molecular marker of individual quality? Insights from a long-lived bird . Funct. Ecol.   33 , 1076 - 1087 . 10.1111/1365-2435.13307...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (19): jeb228205.
Published: 8 October 2020
...Tatiana S. Filatova; Denis V. Abramochkin; Holly A. Shiels ABSTRACT Birds occupy a unique position in the evolution of cardiac design. Their hearts are capable of cardiac performance on par with, or exceeding that of mammals, and yet the structure of their cardiomyocytes resembles those of reptiles...
Journal Articles
J Exp Biol (2020) 223 (3): jeb214809.
Published: 10 February 2020
... aerodynamics; if they act in the same plane, lift from the tail might compensate for lift lost over the fuselage (body), reducing induced drag with a more even downwash profile. However, textbook aeronautical principles should be applied with caution because birds have highly capable sensing and active control...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (20): jeb204719.
Published: 15 October 2019
... of the model: nestlings that were more somatically and physiologically mature had longer telomeres ( Table 2 A) and lower oxidative status (PCA2, Table 2 B). In fledglings (between day 17 and day 21), supplemental feeding also had no effect on changes in physiological variables before birds left the nest...
Journal Articles
J Exp Biol (2019) 222 (12): jeb199232.
Published: 17 June 2019
... for a given species and its usefulness – relative to other localization cues – has been a powerful selective force in the evolution of the neural circuits involved. Birds and other non-mammals have internally coupled middle ears working as pressure-difference receivers that may significantly enhance ITDs...
Journal Articles
J Exp Biol (2019) 222 (10): jeb202879.
Published: 16 May 2019
... but data for birds remain scarce. We tested the hypothesis that colonization of germ-free chicks from a quail line selected for a high emotional reactivity (E+) with GM from a line with low emotional reactivity (E−) would reduce their emotional behaviour in comparison with germ-free chicks from an E+ line...
Journal Articles
J Exp Biol (2019) 222 (7): jeb197640.
Published: 1 April 2019
... , S. , Iyer , V. R. and Franzini-Armstrong , C. ( 2012 ). Ultrastructure of cardiac muscle in reptiles and birds: optimizing and/or reducing the probability of transmission between calcium release units . J. Muscle Res. Cell Motil.   33 , 145 - 152 . 10.1007/s10974-012-9297-6...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (4): jeb196188.
Published: 27 February 2019
... muscle atrophy . Biol. Chem.   394 , 393 - 414 . 10.1515/hsz-2012-0247 Cherel , Y. , Robin , J. P. and Le Maho , Y. ( 1988 ). Physiology and biochemistry of long-term fasting in birds . Can. J. Zool.   66 , 159 - 166 . 10.1139/z88-022 Dumas , J. F. , Roussel , D...
Journal Articles
J Exp Biol (2018) 221 (20): jeb163089.
Published: 22 October 2018
... technologies making navigational experiments on long-distance migratory and other wild birds much more accessible; the almost complete loss of the historically dominant, large-scale pigeon loft/research facilities; and prohibitive university per diem costs as well as animal care and use restrictions...
Journal Articles
J Exp Biol (2018) 221 (19): jeb168831.
Published: 11 October 2018
...Glenna T. Clifton; Andrew A. Biewener ABSTRACT Loons (Gaviiformes) are arguably one of the most successful groups of swimming birds. As specialist foot-propelled swimmers, loons are capable of diving up to 70 m, remaining underwater for several minutes, and capturing fish. Despite the swimming...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (18): jeb185058.
Published: 27 September 2018
...Heather E. Watts; Daniela Jimenez; Veronica Pacheco; Tauras P. Vilgalys ABSTRACT Temperature-correlated shifts in reproductive timing are now well documented in numerous bird species. However, whether temperature directly influences reproductive timing or whether its effects are mediated...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (11): jeb176438.
Published: 7 June 2018
...Alex M. Champagne; Victoria A. Pigg; Heather C. Allen; Joseph B. Williams ABSTRACT To survive high temperatures in a terrestrial environment, animals must effectively balance evaporative heat loss and water conservation. In passerine birds, cutaneous water loss (CWL) is the primary avenue of water...
Journal Articles
J Exp Biol (2018) 221 (10): jeb152538.
Published: 22 May 2018
...Monica A. Daley; Aleksandra Birn-Jeffery ABSTRACT Birds provide an interesting opportunity to study the relationships between body size, limb morphology and bipedal locomotor function. Birds are ecologically diverse and span a large range of body size and limb proportions, yet all use...
Journal Articles
J Exp Biol (2017) 220 (3): 437–444.
Published: 1 February 2017
... Analysis and Contemporary Psychology , (ed. C. F.   Lowe , M.   Richelle , D. D.   Blackman and C. M.   Bradshaw ), pp. 53 - 81 . London : Erlbaum . Dunlap , K. and Mowrer , O. H. ( 1930 ). Head movements and eye functions of birds . J. Comp. Psychol.   11 , 99 - 113...
Includes: Supplementary data