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reproduction

  • RESEARCH ARTICLE
    High-lipid prey reduce juvenile survivorship and delay egg laying in a small linyphiid spider Hylyphantes graminicola
    Lelei Wen, Xiaoguo Jiao, Fengxiang Liu, Shichang Zhang, Daiqin Li
    Journal of Experimental Biology 2020 223: jeb237255 doi: 10.1242/jeb.237255 Published 11 December 2020

    Summary: Feeding on high-lipid prey reduces survival before maturation and delays egg laying among females in a small, sit-and-wait, sheet web-building spider, Hylyphantes graminicola.

  • REVIEW
    Neural and molecular mechanisms underlying female mate choice decisions in vertebrates
    Ross S. DeAngelis, Hans A. Hofmann
    Journal of Experimental Biology 2020 223: jeb207324 doi: 10.1242/jeb.207324 Published 6 September 2020

    Summary: Current knowledge about how female mate choice occurs within the brain is discussed along with future avenues of research that will broaden our current knowledge of this process.

  • SHORT COMMUNICATION
    Variable occurrence of apoptosis in the testes of diploid and sterile allotetraploid Cobitis (Teleostei, Cobitidae) males during the reproductive cycle
    Olga Jablonska, Dorota Juchno, Anna Leska, Karolina Kowalewska, Alicja Boroń
    Journal of Experimental Biology 2020 223: jeb212050 doi: 10.1242/jeb.212050 Published 7 May 2020

    Summary: Caspase-3 immunoexpression in testes of Cobitis taenia and natural tetraploid Cobitis hybrids provides new insights into the reproductive physiology of polyploid fishes, underlining the role of apoptosis during spermatogenesis.

  • RESEARCH ARTICLE
    Shift in worker physiology and gene expression pattern from reproductive to diapause-like with colony age in the bumble bee Bombus impatiens
    Erin D. Treanore, Jacklyn M. Kiner, Mackenzie E. Kerner, Etya Amsalem
    Journal of Experimental Biology 2020 223: jeb218768 doi: 10.1242/jeb.218768 Published 4 May 2020

    Summary: Bumblebee workers exhibit a physiological signature (innate to workers, queen or the colony) corresponding to colony age with a shift towards a diapause-like profile in late-eclosing workers.

  • RESEARCH ARTICLE
    Photoperiodic regulation in a wild-derived mouse strain
    Cristina Sáenz de Miera, Matthew Beymer, Kevin Routledge, Elżbieta Król, Colin Selman, David G. Hazlerigg, Valérie Simonneaux
    Journal of Experimental Biology 2020 223: jeb217687 doi: 10.1242/jeb.217687 Published 25 March 2020

    Summary: Mus musculus molossinus are wild-derived melatonin-proficient mice that display photoperiodic changes in reproductive organs and body mass, enhanced by gestational experience and associated with corresponding changes in pituitary and hypothalamic gene expression.

  • RESEARCH ARTICLE
    Lipid content influences division of labour in a clonal ant
    Abel Bernadou, Elisabeth Hoffacker, Julia Pable, Jürgen Heinze
    Journal of Experimental Biology 2020 223: jeb219238 doi: 10.1242/jeb.219238 Published 19 March 2020

    Highlighted Article: Platythyrea punctata ants show a fat content threshold for triggering foraging and egg-laying behaviour, indicating the co-opting of nutritional status to regulate division of labour in social insect colonies.

  • RESEARCH ARTICLE
    Timing manipulations reveal the lack of a causal link across timing of annual-cycle stages in a long-distance migrant
    Barbara M. Tomotani, Iván de la Hera, Cynthia Y. M. J. G. Lange, Bart van Lith, Simone L. Meddle, Christiaan Both, Marcel E. Visser
    Journal of Experimental Biology 2019 222: jeb201467 doi: 10.1242/jeb.201467 Published 9 September 2019

    Summary: Experimental manipulations show that pied flycatchers do not adjust the timing of their moult and migration to the termination of breeding.

  • COMMENTARY
    Understanding diversity in oxidative status and oxidative stress: the opportunities and challenges ahead
    David Costantini
    Journal of Experimental Biology 2019 222: jeb194688 doi: 10.1242/jeb.194688 Published 2 July 2019

    Summary: This Commentary highlights the distinction between biochemical and biological definitions of oxidative stress, discusses issues to consider when designing experiments to investigate oxidative stress, and proposes the ‘redox signalling hypothesis’ of life history.

  • RESEARCH ARTICLE
    The quantity–quality trade-off: differential effects of daily food availability times on reproductive performance and offspring quality in diurnal zebra finches
    Ila Mishra, Vinod Kumar
    Journal of Experimental Biology 2019 222: jeb196667 doi: 10.1242/jeb.196667 Published 3 April 2019

    Summary: Absence of food in the morning compromises reproductive fecundity but not quality of offspring, whereas food absence in the evening compromises quality (skeletal growth and overall size) of offspring but not reproductive fecundity in continuously breeding diurnal zebra finches.

  • RESEARCH ARTICLE
    Effects of temperature on the timing of breeding and molt transitions in house finches
    Heather E. Watts, Daniela Jimenez, Veronica Pacheco, Tauras P. Vilgalys
    Journal of Experimental Biology 2018 221: jeb185058 doi: 10.1242/jeb.185058 Published 27 September 2018

    Summary: Experimental manipulations in male house finches indicate that elevated temperature has no direct effect on the timing of reproductive preparations, but does influence the transition from breeding to molt.

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