Journal of Experimental Zoology Part A: Ecological and Integrative Physiology

Cover image for Vol. 327 Issue 2-3

Editor-in-Chief: David Crews, Ph.D.

Impact Factor: 1.28

ISI Journal Citation Reports © Ranking: 2016: 61/162 (Zoology)

Online ISSN: 2471-5646

Associated Title(s): Journal of Experimental Zoology Part B: Molecular and Developmental Evolution

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David Crews - 2017 Howard A. Bern Lecture Award Winner

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David Crews

Recently Published Articles

  1. Distribution and concentration of maternal progesterone in the yolk of Greater Rhea eggs (Rhea americana) (pages 143–148)

    Natalia Soledad Della Costa, Joaquín Luis Navarro, Juan Manuel Busso, Raúl Héctor Marin and Mónica Beatriz Martella

    Version of Record online: 16 AUG 2017 | DOI: 10.1002/jez.2073

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    1. An immunoassay was validated for measuring yolk progesterone in Greater Rhea eggs.
    2. Progesterone distribution in yolk spheres supported a follicular origin.
    3. Yolk progesterone levels did not change during two breeding seasons.
  2. Costs of immune responses are related to host body size and lifespan

    Amber J. Brace, Marc J. Lajeunesse, Daniel R. Ardia, Dana M. Hawley, James S. Adelman, Katherine L. Buchanan, Jeanne M. Fair, Jennifer L. Grindstaff, Kevin D. Matson and Lynn B. Martin

    Version of Record online: 3 AUG 2017 | DOI: 10.1002/jez.2084

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    1. There has been a growing interest in the possibility that the costs of immune activity have influenced the evolution of animal defenses against infection to a comparable degree as the benefits of defense.
    2. Here, we used meta-analysis to probe how salient factors, namely body size and life-history orientation, influence the magnitude of immune costs among animals.
    3. From 236 cost estimates among 39 species spanning nine orders of magnitude in body size, we found appreciable immune costs such that long-lived species pay larger immune activation costs than short-lived species, and small species pay higher immune activation costs than large species.
    4. Our work indicates that costs have indeed influenced the evolution of immune systems, results that have implications for zoonotic disease management as well as animal husbandry.
  3. Developmental corticosterone treatment does not program immune responses in zebra finches (Taeniopygia guttata)

    Jennifer L. Grindstaff and Loren Merrill

    Version of Record online: 1 AUG 2017 | DOI: 10.1002/jez.2086

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    • Juvenile corticosterone (CORT) was elevated to test for short- and long-term effects on immunity.
    • Bactericidal ability, haptoglobin, and specific antibody were not affected by CORT treatment.
    • Bactericidal ability was negatively related to baseline CORT.
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    Detrimental interactions of neonicotinoid pesticide exposure and bumblebee immunity

    Mitchell Andrew Czerwinski and Ben Michael Sadd

    Version of Record online: 1 AUG 2017 | DOI: 10.1002/jez.2087

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    • Field realistic doses of a neonic pesticide compromise bumblebee constitutive and induced humoral immunity, and reduce immune-challenged bee survival.
    • Pesticide–immune interactions may enhance negative outcomes of pesticide–pathogen coexposure.
  5. Correlates of immune defenses in golden eagle nestlings

    Elisabeth MacColl, Kris Vanesky, Jeremy A. Buck, Benjamin M. Dudek, Collin A. Eagles-Smith, Julie A. Heath, Garth Herring, Chris Vennum and Cynthia J. Downs

    Version of Record online: 25 JUL 2017 | DOI: 10.1002/jez.2081

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    Golden eagle nestlings from three regions differed in constitutive immunity, with those in better condition investing less in those defenses. This study of a long-lived raptor informs our understanding of evolutionary and ecological correlates of immunity.