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January, 2020; 223 (2)

INSIDE JEB

  • You have accessSubscription required
    Antarctic bald notothens use spleen scuba tank to keep down blood viscosity
    Kathryn Knight
    Journal of Experimental Biology 2020 223: jeb221549 doi: 10.1242/jeb.221549 Published 27 January 2020

SHORT COMMUNICATIONS

  • You have accessSubscription required
    Daily energy expenditure in white storks is lower after fledging than in the nest
    Andrea Flack, Paul J. Schaeffer, Jan R. E. Taylor, Inge Müller, Martin Wikelski, Wolfgang Fiedler
    Journal of Experimental Biology 2020 223: jeb219337 doi: 10.1242/jeb.219337 Published 28 January 2020

    Summary: Continuous measurement of heart rate and fine-scale movements of free-living juvenile white storks (Ciconia ciconia) using on-board bio-loggers reveals individual and environmental factors relating to daily mean heart rate.

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    Physiological and pharmacological characterization of a molluscan neuronal efflux transporter; evidence for age-related transporter impairment
    Petra M. Hermann, Alexander C. Perry, Izen Hamad, Willem C. Wildering
    Journal of Experimental Biology 2020 223: jeb213785 doi: 10.1242/jeb.213785 Published 28 January 2020

    Summary: This study provides functional and physiological evidence for the existence of ABCC-like efflux transporters in (gastropod) neurons and reports age-associated decline in the extrusion capacity of these transporters.

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    Evidence for a rapid cold hardening response in cultured Drosophila S2 cells
    Emily A. W. Nadeau, Nicholas M. Teets
    Journal of Experimental Biology 2020 223: jeb212613 doi: 10.1242/jeb.212613 Published 27 January 2020

    Summary: Many insects quickly enhance their cold tolerance with a plastic response called rapid cold hardening, and here we demonstrate that cultured Drosophila cells are capable of this impressive phenotype.

RESEARCH ARTICLES

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    Rainbow trout slow myoblast cell culture as a model to study slow skeletal muscle, and the characterization of mir-133 and mir-499 families as a case study
    Bruno Oliveira da Silva Duran, Maeli Dal-Pai-Silva, Daniel Garcia de la serrana
    Journal of Experimental Biology 2020 223: jeb216390 doi: 10.1242/jeb.216390 Published 29 January 2020

    Summary: Fish slow myoblast cell culture allows for the investigation of slow muscle physiology and comparative studies with fast muscle, such as mir-133 and mir-499 families in muscle development.

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    Mitochondrial thermo-sensitivity in invasive and native freshwater mussels
    Georges Hraoui, Stefano Bettinazzi, Andrée D. Gendron, Daniel Boisclair, Sophie Breton
    Journal of Experimental Biology 2020 223: jeb215921 doi: 10.1242/jeb.215921 Published 29 January 2020

    Summary: Contrary to previous beliefs, invasive aquatic ectotherms do not always possess more thermo-tolerant mitochondria than their endemic counterparts.

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    The neuropeptide Drosulfakinin regulates social isolation-induced aggression in Drosophila
    Pavan Agrawal, Damian Kao, Phuong Chung, Loren L. Looger
    Journal of Experimental Biology 2020 223: jeb207407 doi: 10.1242/jeb.207407 Published 29 January 2020

    Summary: Drosulfakinin, the homologue of vertebrate neuropeptide cholecystokinin, has an evolutionarily conserved, U-shaped effect on social isolation-induced aggressive behavior in fruit flies.

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    Energy compensation and received echo level dynamics in constant-frequency bats during active target approaches
    Laura Stidsholt, Rolf Müller, Kristian Beedholm, Hui Ma, Mark Johnson, Peter Teglberg Madsen
    Journal of Experimental Biology 2020 223: jeb217109 doi: 10.1242/jeb.217109 Published 28 January 2020

    Summary: Bats affected by high atmospheric absorption adjust their vocalizations in a non-logarithmic fashion to maximize echo-to-noise ratio at long ranges and to avoid high echo levels when close to a target.

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    Odor coding of nestmate recognition in the eusocial ant Camponotus floridanus
    Stephen T. Ferguson, Kyu Young Park, Alexandra A. Ruff, Isaac Bakis, Laurence J. Zwiebel
    Journal of Experimental Biology 2020 223: jeb215400 doi: 10.1242/jeb.215400 Published 28 January 2020

    Summary: Broad inhibition as well as activation of peripheral odorant receptor signaling decreases aggression between non-nestmate ants consistent with a ‘lock-and-key’ model that requires OR-based detection of unambiguous non-nestmate chemical labels.

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    Extreme blood-boosting capacity of an Antarctic fish represents an adaptation to life in a sub-zero environment
    Jeroen Brijs, Michael Axelsson, Malin Rosengren, Fredrik Jutfelt, Albin Gräns
    Journal of Experimental Biology 2020 223: jeb218164 doi: 10.1242/jeb.218164 Published 27 January 2020

    Editors' Choice: Extreme splenic blood-boosting strategy provides bald notothens with an extraordinary facultative aerobic scope that enables an active lifestyle in sub-zero marine environments.

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    The need for speed: functional specializations of locomotor and feeding muscles in Anolis lizards
    Christopher V. Anderson, Thomas J. Roberts
    Journal of Experimental Biology 2020 223: jeb213397 doi: 10.1242/jeb.213397 Published 27 January 2020

    Summary: Jaw and leg muscles are shown to consistently vary among five species of Anolis lizards, with each muscle expressing higher performance in different measures of muscle speed.

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    Metabolic partitioning of sucrose and seasonal changes in fat turnover rate in ruby-throated hummingbirds (Archilochus colubris)
    Morag F. Dick, Antonio Alcantara-Tangonan, Yazan Shamli Oghli, Kenneth C. Welch
    Journal of Experimental Biology 2020 223: jeb212696 doi: 10.1242/jeb.212696 Published 27 January 2020

    Summary: Hummingbirds alter fat turnover rates seasonally, with faster turnover during the summer, when they are lighter and have high daily energy expenditure. However, the preference for glucose as a substrate for fatty acid synthesis over fructose does not change seasonally.

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    Effects of a titin mutation on force enhancement and force depression in mouse soleus muscles
    Uzma Tahir, Jenna A. Monroy, Nicole A. Rice, Kiisa C. Nishikawa
    Journal of Experimental Biology 2020 223: jeb197038 doi: 10.1242/jeb.197038 Published 27 January 2020

    Summary: Force enhancement and force depression are reduced in muscles from mice with a deletion in N2A titin, suggesting that titin plays a role in history-dependent muscle properties that contribute to natural movements.

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    Mind the gap: natural cleft palates reduce biting performance in bats
    Abigail A. Curtis, Jessica H. Arbour, Sharlene E. Santana
    Journal of Experimental Biology 2020 223: jeb196535 doi: 10.1242/jeb.196535 Published 27 January 2020

    Summary: Naturally occurring, non-pathological cleft palates are common in bats. Cleft dimensions are correlated with skull shape, and clefts reduce bite force, increase stress and increase strain in bat skulls.

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    Variation in limb loading magnitude and timing in tetrapods
    Michael C. Granatosky, Eric J. McElroy, Pierre Lemelin, Stephen M. Reilly, John A. Nyakatura, Emanuel Andrada, Brandon M. Kilbourne, Vivian R. Allen, Michael T. Butcher, Richard W. Blob, Callum F. Ross
    Journal of Experimental Biology 2020 223: jeb201525 doi: 10.1242/jeb.201525 Published 27 January 2020

    Summary: Variation in proprioceptive sensory systems across tetrapods influences loading behaviors of the limbs.

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    Oxygenation properties of hemoglobin and the evolutionary origins of isoform multiplicity in an amphibious air-breathing fish, the blue-spotted mudskipper (Boleophthalmus pectinirostris)
    Jay F. Storz, Chandrasekhar Natarajan, Magnus K. Grouleff, Michael Vandewege, Federico G. Hoffmann, Xinxin You, Byrappa Venkatesh, Angela Fago
    Journal of Experimental Biology 2020 223: jeb217307 doi: 10.1242/jeb.217307 Published 23 January 2020

    Summary: The blue-spotted mudskipper routinely switches between aquatic and aerial respiration. This respiratory versatility is associated with properties of hemoglobin–oxygen transport that are similar to those found in hypoxia-adapted water-breathing fishes.

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    Sexual dimorphism in human arm power and force: implications for sexual selection on fighting ability
    Jeremy S. Morris, Jenna Link, James C. Martin, David R. Carrier
    Journal of Experimental Biology 2020 223: jeb212365 doi: 10.1242/jeb.212365 Published 23 January 2020

    Highlighted Article: Sexual dimorphism in arm cranking power in humans suggests that sexual selection has occurred on males using the fist as a weapon.

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    Pectoral fin kinematics and motor patterns are shaped by fin ray mechanosensation during steady swimming in Scarus quoyi
    Brett R. Aiello, Aaron M. Olsen, Chris E. Mathis, Mark W. Westneat, Melina E. Hale
    Journal of Experimental Biology 2020 223: jeb211466 doi: 10.1242/jeb.211466 Published 23 January 2020

    Summary: In the absence of pectoral fin ray sensation, increased overlap in activity between antagonistic muscles likely acts to stiffen the fin system in order to enhance control and stability.

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    The visual spectral sensitivity of the Chilean recluse spider Loxosceles laeta
    Felipe Tapia, Jesús Olivares, Oliver Schmachtenberg
    Journal of Experimental Biology 2020 223: jeb217133 doi: 10.1242/jeb.217133 Published 22 January 2020

    Summary: Loxosceles laeta has monochromatic vision with a spectral range between the ultraviolet and green and no eye type- or sex-specific spectral specializations, evidenced using electroretinogram and behavioral assays.

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    Reassessing the contribution of the Na+/H+ exchanger Nhe3b to Na+ uptake in zebrafish (Danio rerio) using CRISPR/Cas9 gene editing
    Alex M. Zimmer, Khatereh Shir-Mohammadi, Raymond W. M. Kwong, Steve F. Perry
    Journal of Experimental Biology 2020 223: jeb215111 doi: 10.1242/jeb.215111 Published 22 January 2020

    Summary: CRISPR/Cas9 knockout of the Na+/H+ exchanger Nhe3b has no effect on Na+ uptake in larval zebrafish. H+-ATPase and Na+-Cl−-cotransporter are not responsible for maintaining Na+ uptake in nhe3b knockout mutants.

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    Frogs seek hypoxic microhabitats that accentuate metabolic depression during dormancy
    Giulia S. Rossi, Rebecca L. Cramp, Patricia A. Wright, Craig E. Franklin
    Journal of Experimental Biology 2020 223: jeb218743 doi: 10.1242/jeb.218743 Published 21 January 2020

    Summary: Frogs seek hypoxic microhabitats in response to habitat drying. This behaviour, in turn, accelerates and accentuates metabolic depression during aestivation.

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    Hypoxia-seeking behavior, metabolic depression and skeletal muscle function in an amphibious fish out of water
    Giulia S. Rossi, Patricia A. Wright
    Journal of Experimental Biology 2020 223: jeb213355 doi: 10.1242/jeb.213355 Published 21 January 2020

    Summary: Hypoxia-seeking behavior in an amphibious fish out of water can accentuate metabolic depression, which may consequently protect energy reserves, as well as skeletal muscle structure and function during seasonal droughts.

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    Investigating the relationship between corticosterone and glucose in a reptile
    Lorin A. Neuman-Lee, Spencer B. Hudson, Alison C. Webb, Susannah S. French
    Journal of Experimental Biology 2020 223: jeb203885 doi: 10.1242/jeb.203885 Published 21 January 2020

    Summary: In situ and manipulation experiments in wandering gartersnakes show plasma glucose is elevated during acute stress, but corticosterone concentrations are not tightly correlated with glucose concentrations.

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    Suction adhesion in the gliding joint of a cephalopod
    Andrew M. Smith, Scott M. LaValva, Matthew M. Loiacono, Joseph T. Thompson
    Journal of Experimental Biology 2020 223: jeb211227 doi: 10.1242/jeb.211227 Published 14 January 2020

    Summary: Suction adhesion plays an important role in the function of a gliding joint in squid, preventing the joint surfaces from being disarticulated yet allowing sliding motions with minimal resistance.

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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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