-
Cover image
Cover Image
Cover: Centipedes inhabit various terrains but are largely studied on flat surfaces. To gain insight into the mechanics and control of traversal on complex surfaces, Diaz et al. (jeb244688) studied how two centipede species negotiate laboratory model rugose terrains. The eastern red centipede (Scolopocryptops sexspinosus) changes its locomotor strategy (direct to retrograde limb-stepping pattern) with increasing terrain rugosity, whereas the tiger centipede (Scolopendra polymorpha) retains the same strategy (retrograde limb-stepping). When encountering detrimental limb-substrate interactions, both species fold their limbs towards the body, aiding limb-obstacle negotiation via passive limb gliding. Photo credit: Kenneth Wang.
- PDF Icon PDF LinkTable of contents
- PDF Icon PDF LinkIssue info
INSIDE JEB
COMMENTARIES
Insect diapause: from a rich history to an exciting future
Summary: Diapause is nearly universally employed by insects for surviving unfavorable seasons. In spite of impressive progress that has been made in understanding diapause, many exciting questions remain unanswered.
From perplexing to predictive: are we ready to forecast insect disease susceptibility in a warming world?
Summary: Climate change-induced temperature increases will have both positive and negative effects on insect immune systems; consequently, insect susceptibility to disease is difficult to predict. We discuss how future research can answer this key question.
SHORT COMMUNICATIONS
Epaxial and hypaxial co-contraction: a mechanism for modulating strike pressure and accuracy during suction feeding in channel catfish
Summary: Channel catfish vary suction feeding performance by modulating co-contraction of epaxial and hypaxial muscles.
Weanling gut microbiota composition of a mouse model selectively bred for high voluntary wheel-running behavior
Summary: Selective breeding for high levels of voluntary wheel-running behavior in house mice alters the gut microbiota composition and diversity at weaning, indicating a possible regulatory role for the microbiome in exercise behavior.
Stress tolerance is influenced by artificial light at night during development and life-history strategy
Light pollution during development reduces heat tolerance in a field cricket, but its effects on desiccation tolerance are dependent on flight capability.
RESEARCH ARTICLES
Hoverfly (Eristalis tenax) pursuit of artificial targets
Summary: Three-dimensional reconstructions of hoverfly bead pursuits in an indoor arena show two behavioral strategies: a distal stage, which rapidly decreases the target distance, and a proximal stage, where the hoverfly shadows the target.
Foraging habitat and site selection do not affect feeding rates in European shags
Data from acceleration–depth data loggers show that during chick rearing, European shags (Gulosus aristotelis) did not follow classical optimal foraging rules but instead foraged opportunistically.
Multiple behaviors for turning performance of Pacific bluefin tuna (Thunnus orientalis)
Summary: Despite generally rigid bodies, bluefin tuna are capable of maneuvering with high agility by using various turning behaviors, with a flexible tail and caudal peduncle.
Taurine depletion impairs cardiac function and affects tolerance to hypoxia and high temperatures in brook char (Salvelinus fontinalis)
Summary: Cardiac taurine deficiency impairs heart function in brook char and alters whole-animal sensitivity to thermal, hypoxic and exercise stress.
Transcriptomic changes associated with maternal care in the brain of mouthbrooding cichlid Astatotilapia burtoni reflect adaptation to self-induced metabolic stress
Transcriptome sequencing of maternal mouthbrooding cichlid whole brains identifies a number of candidate neuropeptides and hormones involved in parental behavior as well as general oxygen transport, metabolic processes and neuroprotective pathways likely induced by the metabolic stress of fasting.
Developing elastic mechanisms: ultrafast motion and cavitation emerge at the millimeter scale in juvenile snapping shrimp
Within 1–2 months after settlement, juvenile snapping shrimp develop an elastic mechanism that allows them to generate ultrafast strikes, cavitation bubbles and the highest recorded accelerations for underwater, repeated-use movements.
Active and passive mechanics for rugose terrain traversal in centipedes
Summary: Centipedes use a presumed passive strategy to negotiate limb–substrate collisions. One centipede species changes its limb-stepping pattern, hypothesized to reduce footfall uncertainty.
Why don't horseflies land on zebras?
Summary: Pelage contrast and small dark patches are key to enabling stripes preventing zebras being attacked by biting flies.
Increased reliance on coronary perfusion for cardiorespiratory performance in seawater-acclimated rainbow trout
Summary: Increased myocardial compaction in seawater-acclimated rainbow trout is associated with greater reliance on coronary perfusion for cardiorespiratory performance.
Polarization sensitivity and decentralized visual processing in an animal with a distributed visual system
Acanthopleura granulata exhibits polarization sensitivity, and sensory information gathered by its distributed visual system is integrated in a decentralized visuotopic map.
Sensory perception in a changing world – 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 JEB Symposium Sensory Perception in a Changing World and the SEB satellite meeting. Find out more and register to join us in March 2025 in Liverpool, UK. Submit your abstract by 17 January 2025. Early-bird registration ends on 17 January 2025.
Extraordinary creatures: mantis shrimp
In our new Conversation series focusing on extraordinary creatures, Tom Cronin and Sheila Patek tell us about the incredible biology of mantis shrimp, from their complex vision to their powerful striking abilities.
Behaviour as a physiological process
In this Commentary, Shamil Debaere & colleagues argue the case for integration of behaviour into animal physiology, and advocate for behaviour to be considered as a physiological process.
Tiny ring-necked snakes keep warm heads despite their size
Some ectotherms are able to raise the temperature of certain body parts above the temperature of other regions & now Christian Fox and Albert Chung, with undergraduates from the University of Virginia, reveal that the heads of tiny ring-necked snakes can be 2.1C warmer than their tails, even though they are only 20cm long.
