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June, 2020; 223 (12)

INSIDE JEB

  • You have accessSubscription required
    Pygmy mice whistle for the audience
    Kathryn Knight
    Journal of Experimental Biology 2020 223: jeb229427 doi: 10.1242/jeb.229427 Published 26 June 2020
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    Surfing behind rocks costs trout dear when feeding
    Kathryn Knight
    Journal of Experimental Biology 2020 223: jeb230086 doi: 10.1242/jeb.230086 Published 26 June 2020
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    Potassium leak short circuits trout heart at high temperatures
    Kathryn Knight
    Journal of Experimental Biology 2020 223: jeb230169 doi: 10.1242/jeb.230169 Published 25 June 2020
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    Parrots discard dowdy pigments in favour of own brand
    Kathryn Knight
    Journal of Experimental Biology 2020 223: jeb229591 doi: 10.1242/jeb.229591 Published 17 June 2020
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    Zebra finches adapt to cope well with extreme conditions
    Kathryn Knight
    Journal of Experimental Biology 2020 223: jeb228981 doi: 10.1242/jeb.228981 Published 17 June 2020
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    Why bark beetles roam near and far
    Kathryn Knight
    Journal of Experimental Biology 2020 223: jeb227991 doi: 10.1242/jeb.227991 Published 16 June 2020

COMMENTARY

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    Improving estimates of diving lung volume in air-breathing marine vertebrates
    Andreas Fahlman, Katsufumi Sato, Patrick Miller
    Journal of Experimental Biology 2020 223: jeb216846 doi: 10.1242/jeb.216846 Published 25 June 2020

    Summary: Various factors affect our ability to accurately determine lung capacity during diving in air-breathing marine vertebrates; improving our estimates has implications for our understanding of the physiology and ecophysiology of these animals.

SHORT COMMUNICATIONS

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    Environmental estrogen exposure disrupts sensory processing and nociceptive plasticity in the cephalopod Euprymna scolopes
    Stephanie N. Bazarini, Robyn J. Crook
    Journal of Experimental Biology 2020 223: jeb218008 doi: 10.1242/jeb.218008 Published 26 June 2020

    Summary: In squid, exposure to water-borne environmental estrogens during development and throughout the juvenile period alters sensory processing and impairs appropriate behavioral responses to injury.

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    The teleost fish intestine is a major oxalate-secreting epithelium
    Jonathan M. Whittamore
    Journal of Experimental Biology 2020 223: jeb216895 doi: 10.1242/jeb.216895 Published 15 June 2020

    Summary: The discovery of extraordinarily high rates of net oxalate secretion by the teleost gut support its proposed role as the main pathway for eliminating this potentially toxic waste metabolite.

METHODS & TECHNIQUES

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    A simple device to immobilize protists for electrophysiology and microinjection
    Anirudh Kulkarni, Irene Elices, Nicolas Escoubet, Léa-Laetitia Pontani, Alexis Michel Prevost, Romain Brette
    Journal of Experimental Biology 2020 223: jeb219253 doi: 10.1242/jeb.219253 Published 17 June 2020

    Summary: A simple device that can reversibly immobilize ciliates for observation and manipulation.

RESEARCH ARTICLES

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    Walking with added mass magnifies salient features of human foot energetics
    Nikolaos Papachatzis, Philippe Malcolm, Carl A. Nelson, Kota Z. Takahashi
    Journal of Experimental Biology 2020 223: jeb207472 doi: 10.1242/jeb.207472 Published 26 June 2020

    Summary: Walking with added mass altered the force demand under which human legs normally operate, which highlights the versatility of human feet.

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    Oxygen consumption of drift-feeding rainbow trout: the energetic tradeoff between locomotion and feeding in flow
    Jacob L. Johansen, Otar Akanyeti, James C. Liao
    Journal of Experimental Biology 2020 223: jeb220962 doi: 10.1242/jeb.220962 Published 26 June 2020

    Editors' Choice: Drift-feeding rainbow trout choose between swimming and refuging depending on the cost and success rate of prey capture across flow velocities.

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    The sonar beam of Macrophyllum macrophyllum implies ecological adaptation under phylogenetic constraint
    Mads Nedergaard Olsen, Annemarie Surlykke, Lasse Jakobsen
    Journal of Experimental Biology 2020 223: jeb223909 doi: 10.1242/jeb.223909 Published 26 June 2020

    Summary: The long-legged bat (Macrophyllum macrophyllum) emits broader and more intense echolocation calls than its close relatives, but these are still less intense and have less flexibility in the emitted beam than ecologically similar vespertilionid bats.

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    Pygmy mouse songs reveal anatomical innovations underlying acoustic signal elaboration in rodents
    Tobias Riede, Bret Pasch
    Journal of Experimental Biology 2020 223: jeb223925 doi: 10.1242/jeb.223925 Published 26 June 2020

    Highlighted Article: Northern pygmy mice produce an elaborate song through laryngeal whistling supported by a large air sac located inside the larynx, providing novel insight into the anatomical and physiological basis of signal elaboration.

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    Functional effect of vaterite – the presence of an alternative crystalline structure in otoliths alters escape kinematics of the brown trout
    Matthias Vignon, Jean-Christophe Aymes
    Journal of Experimental Biology 2020 223: jeb222034 doi: 10.1242/jeb.222034 Published 25 June 2020

    Summary: The presence of vaterite alters fish behaviour in ways that are likely to decrease survival.

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    Reduced ventricular excitability causes atrioventricular block and depression of heart rate in fish at critically high temperatures
    Jaakko Haverinen, Matti Vornanen
    Journal of Experimental Biology 2020 223: jeb225227 doi: 10.1242/jeb.225227 Published 25 June 2020

    Highlighted Article: Heat-induced heart failure in rainbow trout is due to atrio-ventricular block, an outcome from the opposite effects of temperature on depolarizing sodium (source) current and repolarizing potassium (sink) current of ventricular myocytes.

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    Body temperature maintenance acclimates in a winter-tenacious songbird
    Maria Stager, Nathan R. Senner, Bret W. Tobalske, Zachary A. Cheviron
    Journal of Experimental Biology 2020 223: jeb221853 doi: 10.1242/jeb.221853 Published 23 June 2020

    Summary: Dark-eyed juncos maintain normothermia in the cold by modifying separate physiological traits at different time points in response to external temperature cues.

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    Discrete modulation of anti-predatory and agonistic behaviors by sensory communication signals in juvenile crayfish
    Alexis C. Exum, Lucky M. Sun, Jens Herberholz
    Journal of Experimental Biology 2020 223: jeb226704 doi: 10.1242/jeb.226704 Published 23 June 2020

    Summary: The exchange of sensory signals shapes future behavior of juvenile crayfish in response to threat signals and during intraspecific agonistic encounters.

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    Vitellogenin offsets oxidative costs of reproduction in female painted dragon lizards
    Willow R. Lindsay, Christopher R. Friesen, Carina Sihlbom, Jörgen Bergström, Evelin Berger, Mark R. Wilson, Mats Olsson
    Journal of Experimental Biology 2020 223: jeb221630 doi: 10.1242/jeb.221630 Published 23 June 2020

    Summary: The quantity of vitellogenin yolk protein in female plasma is associated with oxidative state and not reproductive investment, providing a potential shield from free radicals during reproduction of egg-producing species.

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    Effects of membrane fatty acid composition on cellular metabolism and oxidative stress in dermal fibroblasts from small and large breed dogs
    Ana Gabriela Jimenez, Joshua D. Winward, Kenneth E. Walsh, Alex M. Champagne
    Journal of Experimental Biology 2020 223: jeb221804 doi: 10.1242/jeb.221804 Published 22 June 2020

    Summary: Fibroblasts from small breed dogs and from both small and large breed dogs treated with oleic acid to decrease membrane saturation have lower maximal and basal oxygen consumption rates, respectively – traits associated with longer lifespans.

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    Sex-specific molecular specialization and activity rhythm-dependent gene expression in honey bee antennae
    Rikesh Jain, Axel Brockmann
    Journal of Experimental Biology 2020 223: jeb217406 doi: 10.1242/jeb.217406 Published 22 June 2020

    Summary: Gene expression differences between honey bee male (specialist) and female (generalist) antennae identify differences in molecular specialization and reveal new genes involved in odorant detection.

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    Spatial orientation based on multiple visual cues in non-migratory monarch butterflies
    Myriam Franzke, Christian Kraus, David Dreyer, Keram Pfeiffer, M. Jerome Beetz, Anna L. Stöckl, James J. Foster, Eric J. Warrant, Basil el Jundi
    Journal of Experimental Biology 2020 223: jeb223800 doi: 10.1242/jeb.223800 Published 19 June 2020

    Summary: Non-migrating butterflies keep directed courses when viewing a simulated sun or panoramic scene. This suggests that they orient based on multiple visual cues independent of their migratory context.

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    Impairment of mixed melanin-based pigmentation in parrots
    Ana Carolina de Oliveira Neves, Ismael Galván, Dirk Van den Abeele
    Journal of Experimental Biology 2020 223: jeb225912 doi: 10.1242/jeb.225912 Published 17 June 2020

    Highlighted Article: We report the first evolutionary loss of mixed melanin-based animal pigmentation, showing absence of pheomelanin in parrot feathers. This is likely driven by color redundancy with psittacofulvins, exclusive parrot pigments.

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    Physiological responses of wild zebra finches (Taeniopygia guttata) to heatwaves
    Christine Elizabeth Cooper, Laura Leilani Hurley, Pierre Deviche, Simon Charles Griffith
    Journal of Experimental Biology 2020 223: jeb225524 doi: 10.1242/jeb.225524 Published 17 June 2020

    Highlighted Article: Zebra finches modify their metabolic, hygric and thermal response to environmental conditions during heatwaves to achieve more favourable heat and water balance, maintain body mass and avoid physiological stress.

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    Stable mitochondrial CICIII2 supercomplex interactions in reptiles versus homeothermic vertebrates
    Amanda Bundgaard, Andrew M. James, Michael E. Harbour, Michael P. Murphy, Angela Fago
    Journal of Experimental Biology 2020 223: jeb223776 doi: 10.1242/jeb.223776 Published 17 June 2020

    Summary: The stability of supercomplexes of mitochondrial electron transport chain complexes I and III varies among vertebrates and is greatest in poikilothermic reptiles and weakest in endotherms.

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    Immunosenescence and its influence on reproduction in a long-lived vertebrate
    Jessica M. Judson, Dawn M. Reding, Anne M. Bronikowski
    Journal of Experimental Biology 2020 223: jeb223057 doi: 10.1242/jeb.223057 Published 17 June 2020

    Summary: Painted turtles show differences in immune function across age, sex and sampling date, with some evidence of a trade-off between reproductive effort and immune function with age.

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    Oxygen supply capacity in animals evolves to meet maximum demand at the current oxygen partial pressure regardless of size or temperature
    Brad A. Seibel, Curtis Deutsch
    Journal of Experimental Biology 2020 223: jeb210492 doi: 10.1242/jeb.210492 Published 16 June 2020

    Summary: Maximum and basal metabolic rate and their oxygen, temperature and size dependencies are mechanistically and quantifiably linked via the physiological capacity to supply oxygen.

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    Mechanisms and consequences of flight polyphenisms in an outbreaking bark beetle species
    Kelsey L. Jones, Rahmatollah Rajabzadeh, Guncha Ishangulyyeva, Nadir Erbilgin, Maya L. Evenden
    Journal of Experimental Biology 2020 223: jeb219642 doi: 10.1242/jeb.219642 Published 16 June 2020

    Highlighted Article: The relationship between energy use during flight and host colonisation in the mountain pine beetle suggests potential selection mechanisms maintaining flight polyphenisms.

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    Impact of temperature on bite force and bite endurance in the leopard iguana (Diplolaemus leopardinus) in the Andes Mountains
    Nadia Vicenzi, Alejandro Laspiur, Paola L. Sassi, Rubén Massarelli, John Krenz, Nora R. Ibargüengoytía
    Journal of Experimental Biology 2020 223: jeb221382 doi: 10.1242/jeb.221382 Published 16 June 2020

    Summary: Leopard iguanas bite during prey capture, defense, sexual competition and copulation. Experimental data show they would maintain or improve bite performance at the higher temperatures projected in climate-change scenarios.

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    Asymmetrical gait kinematics of free-ranging callitrichine primates in response to changes in substrate diameter and orientation
    Noah T. Dunham, Allison McNamara, Liza J. Shapiro, Taylor Phelps, Jesse W. Young
    Journal of Experimental Biology 2020 223: jeb217562 doi: 10.1242/jeb.217562 Published 15 June 2020

    Summary: Free-ranging callitrichine primates adjust aspects of asymmetrical gait kinematics to promote stability when moving over arboreal substrates varying in diameter and orientation angle.

  • Open Access
    A rapid intrinsic heart rate resetting response with thermal acclimation in rainbow trout, Oncorhynchus mykiss
    Rachel L. Sutcliffe, Shaorong Li, Matthew J. H. Gilbert, Patricia M. Schulte, Kristi M. Miller, Anthony P. Farrell
    Journal of Experimental Biology 2020 223: jeb215210 doi: 10.1242/jeb.215210 Published 15 June 2020

    Summary: Intrinsic heart rate resetting occurs inconsistently with temperature acclimation in rainbow trout; however, it can occur rapidly, within 1 h of warming, without changes in mRNA expression of sinoatrial node proteins.

CORRESPONDENCE

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    The spleen as an unlikely source of red blood cells during activity in fishes
    Michael S. Hedrick, Kenneth R. Olson, Stanley S. Hillman
    Journal of Experimental Biology 2020 223: jeb223586 doi: 10.1242/jeb.223586 Published 25 June 2020
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    Response to ‘The spleen as an unlikely source of red blood cells during increased activity in fishes’
    Jeroen Brijs, Michael Axelsson, Malin Rosengren, Fredrik Jutfelt, Albin Gräns
    Journal of Experimental Biology 2020 223: jeb226498 doi: 10.1242/jeb.226498 Published 25 June 2020

RETRACTIONS

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    Retraction: Whale jaw joint is a shock absorber
    Alexander J. Werth, Haruka Ito
    Journal of Experimental Biology 2020 223: jeb230763 doi: 10.1242/jeb.230763 Published 18 June 2020
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    Retraction: Shock-absorbing pad protects whales’ jaws when dining
    Kathryn Knight
    Journal of Experimental Biology 2020 223: jeb230771 doi: 10.1242/jeb.230771 Published 18 June 2020

CORRECTION

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    Correction: The neonicotinoid imidacloprid impairs honey bee aversive learning of simulated predation
    Erica Zhang, James C. Nieh
    Journal of Experimental Biology 2020 223: jeb230060 doi: 10.1242/jeb.230060 Published 15 June 2020
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    Tactile active sensing in an insect plant pollinator

    T. Deora, M. A. Ahmed, T. L. Daniel, B. W. Brunton
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    Ocean Acidification Alters Properties of the Exoskeleton in Adult Tanner Crabs, Chionoecetes bairdi

    Gary H. Dickinson, Shai Bejerano, Trina Salvador, Christine Makdisi, Shrey Patel, W. Christopher Long, Katherine M. Swiney, Robert J. Foy, Brittan V. Steffel, Kathryn E. Smith, Richard B. Aronson
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    Effects of variable oxygen regimes on mitochondrial bioenergetics and reactive oxygen species production in a marine bivalve Mya arenaria

    Natascha Ouillon, Eugene P. Sokolov, Stefan Otto, Gregor Rehder, Inna M. Sokolova
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    Ontogeny of the star compass in birds: pied flycatchers (Ficedula hypoleuca) can establish the star compass in spring

    Anna Zolotareva, Gleb Utvenko, Nadezhda Romanova, Alexander Pakhomov, Nikita Chernetsov
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    Why do sea turtles swim slowly? A metabolic and mechanical approach

    Chihiro Kinoshita, Takuya Fukuoka, Tomoko Narazaki, Yasuaki Niizuma, Katsufumi Sato
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