FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2022830058> ?p ?o ?g. }

• W2022830058 abstract "Most vertebrates living in seasonal environments show seasonal reproductive cycles and diel rhythms. The rhythmicity in behavior and morphology is accompanied by diel and seasonal patterns of hormone secretions. In small animals, the investigation of diel patterns of hormones has been hampered because repeated blood sampling is difficult and may influence subsequent measurements. A possibility to avoid these caveats is to investigate excreted hormone metabolites instead. Here, we describe the diel excretion patterns of testosterone and corticosterone metabolites in a small captive songbird during 4 seasons: winter, early spring ( Zugunruhe), summer, and autumn molt. Our approach is quite unique, because the diel patterns of steroids have rarely—if at all—been investigated in the same individuals within several seasons. Small birds should be ideal to investigate diel patterns of hormone metabolites, because they defecate frequently enough to establish a diel profile. However, concentration measurements of hormone metabolites rely on the assumptions that hormone metabolites are placed into droppings of similar mass (the “dropping amount assumption”) and are excreted in constant time intervals (the “constant interval assumption”). These assumptions were clearly violated in our study, as the dropping mass per time interval and the defecation intervals varied depending on the time of day and season. We thus used the rate of hormone metabolite excretion as an alternative measure to concentration. Both testosterone and corticosterone metabolites showed diel and seasonal rhythmicity. Furthermore, the diel pattern varied depending on season. Concentration and rate measurements gave similar results when the differences between hormone metabolite levels were large—for example, when testosterone metabolites were compared across seasons. When the differences were more subtle, though, the 2 measures did not always correspond well, indicating that the violation of the 2 basic assumptions affected the comparability of concentration measurements. We conclude that diel and seasonal comparisons of hormone metabolites potentially give biologically meaningful results, especially when rates instead of concentrations are measured. However, such studies require awareness of the limitations and pitfalls of noninvasive hormone measurements, a carefully designed experiment, and very cautious interpretation of the data." @default.
• W2022830058 created "2016-06-24" @default.
• W2022830058 creator A5048441687 @default.
• W2022830058 creator A5090797660 @default.
• W2022830058 date "2011-01-20" @default.
• W2022830058 modified "2023-09-27" @default.
• W2022830058 title "Seasonal and Diel Variation of Hormone Metabolites in European Stonechats: On the Importance of High Signal-to-Noise Ratios in Noninvasive Hormone Studies" @default.
• W2022830058 cites W1517194603 @default.
• W2022830058 cites W1967986372 @default.
• W2022830058 cites W1968572572 @default.
• W2022830058 cites W1977552772 @default.
• W2022830058 cites W1978059032 @default.
• W2022830058 cites W1978562057 @default.
• W2022830058 cites W1983921213 @default.
• W2022830058 cites W1985312217 @default.
• W2022830058 cites W1986795772 @default.
• W2022830058 cites W1992127518 @default.
• W2022830058 cites W1992329601 @default.
• W2022830058 cites W1993524862 @default.
• W2022830058 cites W1998893341 @default.
• W2022830058 cites W2003635685 @default.
• W2022830058 cites W2011027148 @default.
• W2022830058 cites W2011902457 @default.
• W2022830058 cites W2014693747 @default.
• W2022830058 cites W2016427286 @default.
• W2022830058 cites W2019056329 @default.
• W2022830058 cites W2021092915 @default.
• W2022830058 cites W2021114007 @default.
• W2022830058 cites W2023763565 @default.
• W2022830058 cites W2024351440 @default.
• W2022830058 cites W2024832981 @default.
• W2022830058 cites W2029438768 @default.
• W2022830058 cites W2034312165 @default.
• W2022830058 cites W2036008621 @default.
• W2022830058 cites W2036031897 @default.
• W2022830058 cites W2038202625 @default.
• W2022830058 cites W2049812688 @default.
• W2022830058 cites W2051127398 @default.
• W2022830058 cites W2067030694 @default.
• W2022830058 cites W2069788351 @default.
• W2022830058 cites W2071553463 @default.
• W2022830058 cites W2075153490 @default.
• W2022830058 cites W2080150164 @default.
• W2022830058 cites W2082356227 @default.
• W2022830058 cites W2090523451 @default.
• W2022830058 cites W2091596296 @default.
• W2022830058 cites W2099033729 @default.
• W2022830058 cites W2100848067 @default.
• W2022830058 cites W2104289701 @default.
• W2022830058 cites W2131709320 @default.
• W2022830058 cites W2135098245 @default.
• W2022830058 cites W2138485680 @default.
• W2022830058 cites W2139372059 @default.
• W2022830058 cites W2160474542 @default.
• W2022830058 cites W4250152181 @default.
• W2022830058 cites W4251192978 @default.
• W2022830058 cites W629205790 @default.
• W2022830058 doi "https://doi.org/10.1177/0748730410388394" @default.
• W2022830058 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/21252365" @default.
• W2022830058 hasPublicationYear "2011" @default.
• W2022830058 type Work @default.
• W2022830058 sameAs 2022830058 @default.
• W2022830058 citedByCount "21" @default.
• W2022830058 countsByYear W20228300582012 @default.
• W2022830058 countsByYear W20228300582013 @default.
• W2022830058 countsByYear W20228300582014 @default.
• W2022830058 countsByYear W20228300582015 @default.
• W2022830058 countsByYear W20228300582016 @default.
• W2022830058 countsByYear W20228300582017 @default.
• W2022830058 countsByYear W20228300582018 @default.
• W2022830058 countsByYear W20228300582019 @default.
• W2022830058 countsByYear W20228300582020 @default.
• W2022830058 countsByYear W20228300582021 @default.
• W2022830058 crossrefType "journal-article" @default.
• W2022830058 hasAuthorship W2022830058A5048441687 @default.
• W2022830058 hasAuthorship W2022830058A5090797660 @default.
• W2022830058 hasConcept C121446783 @default.
• W2022830058 hasConcept C134018914 @default.
• W2022830058 hasConcept C153102810 @default.
• W2022830058 hasConcept C18903297 @default.
• W2022830058 hasConcept C2779600091 @default.
• W2022830058 hasConcept C71315377 @default.
• W2022830058 hasConcept C86803240 @default.
• W2022830058 hasConcept C90856448 @default.
• W2022830058 hasConceptScore W2022830058C121446783 @default.
• W2022830058 hasConceptScore W2022830058C134018914 @default.
• W2022830058 hasConceptScore W2022830058C153102810 @default.
• W2022830058 hasConceptScore W2022830058C18903297 @default.
• W2022830058 hasConceptScore W2022830058C2779600091 @default.
• W2022830058 hasConceptScore W2022830058C71315377 @default.
• W2022830058 hasConceptScore W2022830058C86803240 @default.
• W2022830058 hasConceptScore W2022830058C90856448 @default.
• W2022830058 hasLocation W20228300581 @default.
• W2022830058 hasLocation W20228300582 @default.
• W2022830058 hasOpenAccess W2022830058 @default.
• W2022830058 hasPrimaryLocation W20228300581 @default.
• W2022830058 hasRelatedWork W1508203481 @default.
• W2022830058 hasRelatedWork W1968125722 @default.
• W2022830058 hasRelatedWork W1971569064 @default.
• W2022830058 hasRelatedWork W1984523811 @default.

• next