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dc.contributor.authorNarayan, Edwarden_US
dc.date.accessioned2017-05-03T15:44:19Z
dc.date.available2017-05-03T15:44:19Z
dc.date.issued2013en_US
dc.date.modified2013-11-11T22:49:15Z
dc.identifier.issn2051-1434en_US
dc.identifier.doi10.1093/conphys/cot011en_US
dc.identifier.urihttp://hdl.handle.net/10072/54235
dc.description.abstractNon-invasive endocrinology utilizes non-invasive biological samples (such as feces, urine, hair, aquatic media and saliva) for the quantification of hormones in wildlife. Urinary based enzyme-immunoassay (EIA) and radio-immunoassay (RIA) have enabled the rapid quantification of reproductive and stress hormones in amphibians (Anura: Amphibia). These methods can be used to assess the ovarian and testicular endocrine functions, and physiological stress in captive and free-living populations with minimal disturbances. Non-invasive endocrine monitoring has therefore greatly advanced our knowledge of the functioning of the stress endocrine system - the hypothalamo-pituitary interrenal [HPI] axis and the reproductive endocrine system - the hypothalamo-pituitary gonadal [HPG] axis in amphibian physiological stress response, reproductive ecology, health & welfare and survival. Biological (physiological) validation is necessary for obtaining the excretory lag-time of hormone metabolites. Urinary based EIA for the major reproductive hormones, estradiol and progesterone in females and testosterone in males, can be used to track the reproductive hormone profiles in relation to reproductive behavior and environmental data in free-living anurans. Urinary based corticosterone metabolite EIA can be used to assess the sub-lethal impacts of biological stressors (such as invasive species and pathogenic diseases) as well as anthropogenic induced environmental stressors (e.g. extreme temperatures) on free-living populations. Non-invasive endocrine methods can also assist in the diagnosis of success or failure of captive breeding programmes by measuring the longitudinal patterns of changes in reproductive hormones and corticosterone within captive anurans and comparing the endocrine profiles with health records and reproductive behavior. This review paper focuses on the reproductive and the stress endocrinology of anurans and demonstrates the uses of non-invasive endocrinology for advancing amphibian conservation physiology. It also provides key technical considerations for future research that will increase the data accuracy and reliability, and the value of non-invasive endocrinology within the conceptual framework of conservation physiology.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.format.extent1218518 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.publisherOxford University Pressen_US
dc.publisher.placeUnited Kingdomen_US
dc.relation.ispartofstudentpublicationNen_US
dc.relation.ispartofpagefrom1en_US
dc.relation.ispartofpageto16en_US
dc.relation.ispartofissue1en_US
dc.relation.ispartofjournalConservation Physiologyen_US
dc.relation.ispartofvolume1en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchEcological Impacts of Climate Changeen_US
dc.subject.fieldofresearchConservation and Biodiversityen_US
dc.subject.fieldofresearchBehavioural Ecologyen_US
dc.subject.fieldofresearchcode050101en_US
dc.subject.fieldofresearchcode050202en_US
dc.subject.fieldofresearchcode060201en_US
dc.titleNon-invasive reproductive and stress endocrinology in amphibian conservation physiologyen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
dcterms.licensehttp://creativecommons.org/licenses/by/3.0en_US
gro.facultyGriffith Sciences, Griffith School of Environmenten_US
gro.rights.copyrightThis article has been accepted for publication in Conservation Physiology. Copyright The Author 2013. Published by Oxford University Press on behalf of The Society for Experimental Biology. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.en_US
gro.date.issued2013
gro.hasfulltextFull Text
gro.griffith.authorNarayan, Edward J.


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