Cover: A Japanese yellow swallowtail butterfly (Papilio xuthus) prepares to take flight. Because their eyes are sensitive to polarized light, the world probably looks rather different to these insects than it does to us. Stewart et al. (jeb191957) investigated the role polarization plays in motion vision, by measuring behavioural responses to moving images containing both polarization and intensity contrast. The butterflies perceive polarization as false brightness in this context, suggesting that the neural circuit responsible for visual motion detection contains just one polarization-sensitive channel. Photo credit: Kentaro Arikawa.
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Income and capital breeding in males: energetic and physiological limitations on male mating strategies
Summary: Capital- and income-breeding strategies can be applied to males, but factors shaping these strategies are different from those found in females.
Wing morphology, flight type and migration distance predict accumulated fuel load in birds
Summary: Fat reserves in birds accumulated prior to migration are optimised as a function of expected energy expenditure during migration, defined by an interplay between journey length and the energy efficiency of the flight apparatus (e.g. wing aspect ratio, flight type).
Determinants of optimal leg use strategy: horizontal to vertical transition in the parkour wall climb
Highlighted Article: The optimal transition from horizontal to vertical appears to be determined largely by a trade-off of positive and negative leg work that accomplishes the task with minimum overall work.
Identification of novel circadian transcripts in the zebrafish retina
Summary: Characterization of the day and night transcriptome of the adult zebrafish retina reveals novel circadian transcripts.
Cyclic nature of the REM sleep-like state in the cuttlefish Sepia officinalis
Summary: Evidence suggests that cephalopods possess a sleep-like state that resembles behaviorally the vertebrate rapid eye movement sleep (REMS)-like state.
Flight energetics, caste dimorphism and scaling properties in the bumblebee, Bombus impatiens
Summary: Comparing worker and queen bumblebees reveals how body size impacts flight energetics and muscle metabolism.
Measurement and modelling of primary sex ratios for species with temperature-dependent sex determination
Summary: A new model for estimating sex ratios from temperature traces for species with temperature-dependent sex determination.
An Ishihara-style test of animal colour vision
Editors' Choice: A new way to test animal colour vision based on methods to determine whether humans are ‘colour blind’, and a demonstration of how this method works with triggerfish.
Altered thermoregulation as a driver of host behaviour in glochidia-parasitised fish
Summary: Thermoregulation plays a fundamental, up to now neglected, role in the relationship of endangered affiliated mussels and their fish hosts.
Age-related responses to injury and repair in insect cuticle
Summary: Like humans/other animals, insects also suffer age-related declines. Older insects are more susceptible to injuries and less able to repair them than younger counterparts.
Developmental carryover effects of ocean warming and acidification in corals from a potential climate refugium, the Gulf of Aqaba
Summary: Exposing mature scleractinian corals to predicted next-century temperature and pH did not significantly alter parent or offspring physiology or recruitment success in a recognized coral climate refugium.
Monopolatic motion vision in the butterfly Papilio xuthus
Summary: By measuring butterflies' behavioural responses to moving images containing both polarization and intensity contrast, we infer the photoreceptors and early neural circuits involved in motion detection.
Deletion of a specific exon in the voltage-gated calcium channel gene cacophony disrupts locomotion in Drosophila larvae
Summary: The voltage-gated calcium channel gene cacophony encodes multiple alternatively spliced variants. CRISPR/Cas9 genomic editing precisely eliminated a single cacophony exon in Drosophila, leading to larval crawling defects.
New funding schemes for junior faculty staff
In celebration of our 100th anniversary, JEB has launched two new grants to support junior faculty staff working in animal comparative physiology and biomechanics who are within five years of setting up their first lab/research group. Check out our ECR Visiting Fellowships and Research Partnership Kickstart Travel Grants. First deadline for applications is 15 July 2023.
JEB@100: an interview with Monitoring Editor Sanjay Sane
Sanjay Sane tells us about his first experience of publishing with the journal and why he thinks JEB is going to play a key role in our understanding of the current climate crisis and its implications for biodiversity.
The Forest of Biologists
The Forest of Biologists is a biodiversity initiative created by The Company of Biologists, with support from the Woodland Trust. For every Research and Review article published in Journal of Experimental Biology a native tree is planted in a UK forest. In addition to this we are protecting and restoring ancient woodland and are dedicating these trees to our peer reviewers. Visit our virtual forest to learn more.
Celebrating 100 years of discovery
This Special Issue focuses on broad biological questions addressed through the lens of comparative biomechanics. Crosscutting through time, this series of Reviews, Commentaries and Research Articles addresses questions from the vantage points of the history of the field, today’s research, and the future of comparative biomechanics. Read the Editorial by Sheila Patek, Monica Daley and Sanjay Sane.
Centenary Review - Adaptive echolocation behavior
Cynthia F. Moss and colleagues Review the behaviours used by echolocating mammals to track and intercept moving prey, interrogate dynamic sonar scenes, and exploit visual and passive acoustic stimuli.
Lack of oxygen curtails vision in red-eared sliders
When red-eared sliders sink to the bottom of a frozen pond for winter they reduce many biological systems to minimum life support, but now Michael Ariel and colleagues show that the reptiles temporarily lose their sight due to lack of oxygen but retain hearing.