Kinematics and behaviour in fish escape responses: guidelines for conducting, analysing and reporting experiments
Summary: We outline practical guidelines for conducting, analysing and reporting escape response experiments in fish with the aim of facilitating study replication, comparative analyses and evidence synthesis.
From mechanism to ecosystem: building bridges between ecoimmunology, psychoneuroimmunology and disease ecology
Summary: A discussion of the origins of ecoimmunology, psychoneuroimmunology and disease ecology, and their current state of integration, highlighting several critical directions that could strengthen their integration into the future.
Summary: Sleep is a familiar, everyday experience that is near ubiquitous in animals. We review sleep across taxa, highlighting the diversity of observed sleep behaviour and insights into sleep physiology and function.
Testing evolutionary adaptation potential under climate change in invertebrates (mostly Drosophila): findings, limitations and directions
Summary: Many experiments have been undertaken to evaluate the potential for invertebrates to adapt to climate change, but validation of experimental results is proving difficult.
Summary: Aquatic animals have diverse mechanisms for ionic, osmotic and acid–base regulation, with profound evolutionary and environmental implications; this classic research area continues to evolve as JEB celebrates 100 years of discovery.
METHODS & TECHNIQUES
Summary: Measurement of plasma viscosity in the bumblebee Bombus terrestris using particle tracking microrheology, where viscosity is measured as a function of temperature in a sealed and an open geometry.
Variation in oxidative status, but not structural and physiological development, associated with changing ontogenetic environments
Summary: The first test of physiological canalization across two developmental stages of birds shows some metrics of growth are insensitive to environmental variation and that oxidative status might better reflect developmental conditions.
The enzymatic and neurochemical outcomes of a mutation in Mexican cavefish MAO reveal teleost-specific aspects of brain monoamine homeostasis
Summary: Life with a compromised MAO enzyme: cavefish as a model for the evolution of brain homeostatasis and fish monoaminergic systems.
Decision rules for egg-color-based rejection by two cavity-nesting hosts of the brown-headed cowbird
Summary: Cavity-nesting eastern bluebirds and house wrens were more likely to reject eggs painted colors unlike their own, demonstrating that these species share similar self-referential color discrimination decision-rules for egg rejection.
Non-linear properties of the Achilles tendon determine ankle impedance over a broad range of activations in humans
Summary: During postural conditions, the stiffness of the ankle in humans is determined primarily by the stiffness of the Achilles tendon, not that of the triceps surae muscles.
Population-specific responses in eastern oysters exposed to low salinity in the northern Gulf of Mexico
Summary: Crassostrea virginica largely rely on plasticity in morphology and physiology to buffer the effects of low salinity; this plasticity does not rely on large persistent changes in gene expression.
Muscle in the caterpillar Manduca sexta responds to an immune challenge, but at a cost, suggesting a physiological trade-off
Highlighted Article: Muscle contributes to the immune response; however, this participation reduces muscle function and increases mortality from predation. Sharing resources optimizes function, but comes at a cost.
Deep dives and high tissue density increase mean dive costs in California sea lions (Zalophus californianus)
Summary: California sea lion body density and energy expenditure during dives were estimated from high-resolution tags. Mean diving power increased with dive depth and estimated tissue density.
The role of thyroid hormones in the development of coloration of two species of Neotropical cichlids
Highlighted Article: A surge in thyroid hormones is a necessary but not sufficient signal for the transition from larval to juvenile ornamentation in the Neotropical cichlids.