Issues
-
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.
- PDF Icon PDF LinkTable of contents
- PDF Icon PDF LinkIssue info
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
Call for Papers: The Integrative Biology of the Gut. Guest Editors Carol Bucking, Matt Regan and John Terblanche
We are pleased to welcome submissions for our upcoming Special Issue: The Integrative Biology of the Gut . We are calling for forward-looking papers that address the functional roles of the gut. We will consider papers that address gut function from the cellular level to its interactions with other organs and tissues, including its role in diverse ecophysiological processes, spanning both vertebrate and invertebrate species. The deadline for submission to this issue is 1 October 2024.
Extraordinary creatures: notothenioids and icefish
In our new Conversation focusing on extraordinary creatures, Christina Cheng and Kristin O'Brien tell us about the remarkable freeze tolerant nototheniods that live in the waters around Antarctica and how icefish are the only adult vertebrates that survive without haemoglobin.
Why are microclimates essential for predicting climate change responses and how to measure them?
In their Commentary, Duncan Mitchell and colleagues discuss problems with predicting terrestrial animals’ responses to a warming world based on air temperature, rather than the microclimate of their thermal environment. They provide a simple, low-cost approach to microclimate measurements to provide a more realistic assessment of terrestrial animal performance and predicted population responses in hot regions under warming conditions. This approach requires measuring the variables involved in the exchange of heat and water vapour between animals and their environment.
Keeping warm is harder for tree swallows when it’s damp
Damp air often feels chilly and now Cody Porter & co show that tree swallows use 8% more energy when the atmosphere is damp than when it is dry, so they have to work harder to keep warm in damp conditions.
Biologists @ 100 - join us in Liverpool in March 2025
We are excited to invite you to a unique scientific conference, celebrating the 100-year anniversary of The Company of Biologists, and bringing together our different communities. The conference will incorporate the Spring Meetings of the BSCB and the BSDB, the JEB Symposium Sensory Perception in a Changing World and a DMM programme on antimicrobial resistance. Find out more and register your interest to join us in March 2025 in Liverpool, UK.