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Journal of Experimental Biology Current Issue
Flexibility of exercise capacity during nestling feeding in blue tits
ABSTRACTNestling feeding in altricial birds is a physiologically demanding phase of the annual cycle. Accordingly, parental effort in breeding songbirds has been suggested to be limited by the maximum capacity to perform sustained aerobic work. Ho...
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Posted: March 31, 2026, 12:00 am
ECR Spotlight – Wisdom Agbeti
ECR Spotlight is a series of interviews with early-career authors from a selection of papers published in Journal of Experimental Biology and aims to promote not only the diversity of early-career researchers (ECRs) working in experimental biology...
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Posted: March 30, 2026, 12:00 am
Heart rate and activity patterns of chinook salmon ( Oncorhynchus tshawytscha ) under steady and unsteady flow conditions
ABSTRACTThis study investigated how unsteady flow conditions influence the swimming physiology and energetic performance of Chinook salmon using co-implanted heart rate (HR) and acceleration sensors. Fish were monitored for HR, acceleration and ov...
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Posted: March 30, 2026, 12:00 am
Short-duration flights are three times more costly than extended flight activity in an insectivorous bat
ABSTRACTFlying animals face very high instantaneous costs of locomotion (flight metabolic rate ∼16 times basal metabolic rate in bats). However, the effect of flight duration is poorly studied. We hypothesized there is a metabolic transition from ...
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Posted: March 27, 2026, 12:00 am
Temperature-induced developmental plasticity, size and flight energetics in the hawkmoth Manduca sexta
ABSTRACTFlying insects exhibit substantial variation in size and body proportions, influencing both locomotor performance and metabolic demands during flight. For instance, intra- and interspecific morphological variation affects wingbeat frequenc...
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Posted: March 23, 2026, 12:00 am
Determinants of maximal oxygen consumption in vertebrates
ABSTRACTAcross vertebrates, the maximal rate of oxygen consumption (V̇O2,max) defines the capacity of the respiratory and cardiovascular systems to transport oxygen from the environment to the cells. While V̇O2,max depends on multiple conductance ...
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Posted: March 19, 2026, 12:00 am
Physical activity and metabolic rates in humans
ABSTRACTAll animals perform physical activity, but humans engage in a special kind of physical activity – exercise, defined as discretionary physical activity for health and fitness. However, the effects of physical activity on whole-organism meta...
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Posted: March 16, 2026, 12:00 am
