Issues
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Cover image
Cover Image
Cover: Spix's disc-winged bats (Thyroptera tricolor) commonly use social calls to locate the ephemeral furled leaves that they use for roosting. To aid group members find a leaf faster, bats that are already inside the roost produce ‘response’ calls. To determine the cost of sound production in roosting bats, Chaverri et al. (jeb238279) measured oxygen consumption with and without social signaling. Their findings show that the emission of acoustic signals, including response and echolocation calls, increases oxygen consumption and that even a few response calls may demand a significant energetic investment. Photo credit: Sébastien Puechmaille.
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INSIDE JEB
COMMENTARY
Acidification can directly affect olfaction in marine organisms
Summary: This Commentary presents an additional potential mechanism explaining how acidification can directly affect the olfactory system of marine organisms, leading to altered behavioural responses to various odorants.
SHORT COMMUNICATIONS
Aerial course stabilization is impaired in motion-blind flies
Summary: Flies rendered genetically motion-blind have difficulty maintaining a straight flight trajectory and exhibit pronounced circling behaviour following unilateral wing clipping, indicating a stabilizing influence of motion vision on course control.
Rapid stress hardening in the Antarctic midge improves male fertility by increasing courtship success and preventing decline of accessory gland proteins following cold exposure
Summary: Rapid hardening improves pre- and post-copulatory aspects of male Antarctic midge biology during cold exposure.
Temperature alone is insufficient to understand hibernation energetics
Summary: Temperature, humidity and body condition have different effects on the hibernation energetics of male and female Perimyotis subflavus.
RESEARCH ARTICLES
Cold acclimation induces life stage-specific responses in the cardiac proteome of western painted turtles (Chrysemys picta bellii): implications for anoxia tolerance
Highlighted Article: Maturation of the cardiac proteome may be a determining factor in the superior anoxia tolerance of adult relative to hatchling painted turtles.
Have the eyes of bioluminescent scale worms adapted to see their own light? A comparative study of eyes and vision in Harmothoe imbricata and Lepidonotus squamatus
Summary: A comparison of the visual systems in the scale worms Harmothoe imbricata and Lepidonotus squamatus reveals that H. imbricata may have adapted to see their own bioluminescence.
Cardiac and behavioural responses to hypoxia and warming in free-swimming gilthead seabream, Sparus aurata
Summary: Biologging of cardiac responses to hypoxia and warming in a free-swimming fish reveals that confinement in respirometer chambers raises heart rate, with consequences for estimates of metabolic rate.
The aerodynamics of flying snake airfoils in tandem configuration
Highlighted Article: The aerodynamics of two-dimensional anatomically accurate airfoils provides new insight into the underlying physics of how flying snakes maintain stability or maneuver in mid-air, despite the lack of specialized morphology serving as control surfaces.
Could plasticity mediate highlands lizards’ resilience to climate change? A case study of the leopard iguana (Diplolaemus leopardinus) in Central Andes of Argentina
Summary: In Diplolaemus leopardinus a reduced evaporative water loss may mitigate the impact of rising temperatures on water balance, but a detrimental effect on net energy gain could increase its vulnerability.
The quadrupedal walking gait of the olive baboon, Papio anubis: an exploratory study integrating kinematics and EMG
Summary: Analysis of EMG, kinematics and centre of mass mechanics of quadrupedal (diagonal sequence) walking in Papio anubis supports the use of an inverted pendulum mechanism on the ground, while different gait and substrate contexts directly affect the muscular activity and the recovery rates toward higher costs.
Operative temperature analysis of the honey bee Apis mellifera
Summary: Modelling the effects of temperature on free flying insects often relies on data from experiments performed in a laboratory, here we provide a model that gives context to the energetic differences between the terrestrial ecosystem and laboratory thermal environment.
Effects of experimental increase in insulin-like growth factor 1 on feather growth rate, moult intensity and feather quality in a passerine bird
Highlighted Article: Experimentally increasing insulin-like growth factor 1 levels surprisingly does not affect feather growth during natural moult, but speeds up moult intensity by initiating the renewal of several feathers.
Minding the gap: learning and visual scanning behaviour in nocturnal bull ants
Summary: Investigation of how nocturnal bull ants learn to move around obstacles in familiar and semi-familiar environments reveals that scene familiarity plays a significant role in navigation.
The energetics of social signaling during roost location in Spix's disc-winged bats
Summary: Spix's disc-winged bats constantly produce contact calls while searching for roosts, which significantly increases an individual's metabolic rate.
Larval nutrition impacts survival to adulthood, body size and the allometric scaling of metabolic rate in adult honeybees
Summary: The nutritional quality of insect larval diets affects the scaling of metabolic rate with body mass in newly emerged adult honeybees.
Chimeric human opsins as optogenetic light sensitisers
Summary: Combining different domains of human visual opsins and melanopsin creates functionally unique chimeric opsins with potential optogenetic applications.
CORRECTION
The Integrative Biology of the Heart

We are pleased to welcome submissions to be considered for our upcoming special issue: The Integrative Biology of the Heart, guest edited by William Joyce and Holly Shiels. This issue will consider the biology of the heart at all levels of organisation, across animal groups and scientific fields.
JEB@100: an interview with Monitoring Editor John Terblanche

John Terblanche reveals how he narrowly avoided becoming a sports scientist and why he thinks phenotypic plasticity is the big question currently facing comparative physiologists. Find out more about the series on our Interviews page.
Vision 2024: Building Bridges in Visual Ecology

Early-career researchers can apply for funded places at our Vision 2024: Building Bridges in Visual Ecology. The event is organised by Eleanor Caves, Sonke Johnsen and Lorain Schweikert and being held at Buxted park 10-13 June 2023. Deadline 1 December 2023.
Reconciling the variability in the biological response of marine invertebrates to climate change

Drawing on work in reef-building corals, Zoe Dellaert and Hollie Putnam provide historical context to some of the long-standing challenges in global change biology that constrain our capacity for eco-evolutionary forecasting, as well as considering unresolved questions and future research approaches. Read the full Centenary Review Article here.
Sipping takes no effort for hovering hawkmoths

Hovering takes the most effort so how much energy does sipping require when hawkmoths hover? Next to nothing, apparently. Alexandre Palaoro & colleagues have discovered that the insects’ proboscises are incredibly wettable, drawing nectar along the length with no effort, giving them a free drink on the wing.