Seabird stress and breeding: Endocrine and hematological stress biomarkers differ between gray-faced petrel (Pterodroma gouldi) colonies.

Show simple item record Whitehead, Edin A Russell, James C Hickey, Anthony J Taylor, Graeme A O'Reilly, Katie M Della Penna, Alice Dunphy, Brendon J
dc.coverage.spatial United States 2022-05-06T04:00:20Z 2022-05-06T04:00:20Z 2022-02-15
dc.identifier.citation (2022). Journal of Experimental Zoology Part A-Ecological and Integrative Physiology.
dc.identifier.issn 2471-5638
dc.description.abstract Seabird breeding success is known to reflect oceanic conditions. Gray-faced petrels (Pterodroma gouldi) breeding on the east coast of Auckland, New Zealand, exhibit poor reproductive success and slow chick development compared to west coast conspecifics. This study mapped changes in physiological traits (corticosterone [CORT] and hematological parameters) indicative of sublethal stress in this Procellariiform species between the west coast (Ihumoana) and east coast (Hāwere) island colonies. We found adult gray-faced petrels on the east coast to be lighter and, unlike west coast birds, exhibited an attenuation of response CORT levels between incubation and chick-rearing phases. Such responses were also reflected in east coast chicks that were lighter and had higher feather CORT titers than west coast chicks. Measures of adult hematology and plasma biochemistry revealed significantly lower glucose levels in east coast birds and indicated that chick rearing is the most stressful phase of breeding for this species Combined; these results suggest that east coast birds are under greater nutritional stress and that parents appear to transfer the costs of poor foraging to their chicks to preserve their own condition, consequently increasing chick developmental stress. Our results suggest that any long-term decrease in ocean conditions and/or climatic shifts would be more acutely felt by east coast chicks and potentially their parents, resulting in years of poor breeding success rates on a local scale.
dc.format.medium Print-Electronic
dc.language eng
dc.publisher Wiley
dc.relation.ispartofseries Journal of experimental zoology. Part A, Ecological and integrative physiology
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher.
dc.subject Procellariiformes
dc.subject SST
dc.subject corticosterone
dc.subject hemoglobin
dc.subject nutrients
dc.subject prudent parent
dc.subject Science & Technology
dc.subject Life Sciences & Biomedicine
dc.subject Zoology
dc.subject INCUBATION
dc.subject PLASMA
dc.subject CHICKS
dc.subject COSTS
dc.subject MASS
dc.title Seabird stress and breeding: Endocrine and hematological stress biomarkers differ between gray-faced petrel (Pterodroma gouldi) colonies.
dc.type Journal Article
dc.identifier.doi 10.1002/jez.2576 2022-04-14T07:52:09Z
dc.rights.holder Copyright: The author en
dc.identifier.pmid 35167183 (pubmed)
pubs.publication-status Published
dc.rights.accessrights en
pubs.subtype Journal Article
pubs.elements-id 883363 Science Marine Science Biological Sciences Science Research Maurice Wilkins Centre (2010-2014)
dc.identifier.eissn 2471-5646
pubs.record-created-at-source-date 2022-04-14 2022-02-15

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