Matches in SemOpenAlex for { <https://semopenalex.org/work/W2000276411> ?p ?o ?g. }
Showing items 1 to 83 of
83
with 100 items per page.
- W2000276411 endingPage "48" @default.
- W2000276411 startingPage "38" @default.
- W2000276411 abstract "White-winged crossbills (Loxia leucoptera) are opportunistic breeders that can nest at almost any time of year if there is sufficient food. Other cardueline finches that have been shown to breed on a strictly seasonal schedule become absolutely refractory to the stimulatory effects of long-day photoperiod, dramatically down-regulate hypothalamic gonadotropin-releasing hormone (GnRH), and reduce the volume of several song-control nuclei in autumn. This study examined whether changes in photoperiod modify the GnRH and song-control systems in white-winged crossbills. Adult male and female crossbills were captured and held on a naturally changing photoperiod. Brains of male and female birds were collected in May, October, and January. GnRH content was assessed by immunocytochemistry and the volumes of Nissl-defined song-control nuclei (HVc, Area X, and the robust nucleus of the archistriatum) were reconstructed. In contrast to other cardueline finches, GnRH immunoreactivity was relatively stable across the year, exhibiting only modest seasonal variation. The song control system, on the other hand, exhibited large seasonal changes as well as sex differences. Thus, crossbills appear to maintain hypothalamic GnRH content year round, perhaps to facilitate a rapid response to favorable breeding conditions, even on short days. However, song control nuclei are dramatically affected by photoperiod. Future work should examine these systems in crossbills breeding on short days to compare photoperiod-dependent and -independent effects on neural plasticity." @default.
- W2000276411 created "2016-06-24" @default.
- W2000276411 creator A5021958021 @default.
- W2000276411 creator A5021972695 @default.
- W2000276411 creator A5025594460 @default.
- W2000276411 creator A5080795548 @default.
- W2000276411 creator A5080953604 @default.
- W2000276411 date "2001-01-01" @default.
- W2000276411 modified "2023-09-29" @default.
- W2000276411 title "Seasonal Changes in Brain GnRH Immunoreactivity and Song-Control Nuclei Volumes in an Opportunistically Breeding Songbird" @default.
- W2000276411 cites W1987865123 @default.
- W2000276411 cites W2051145240 @default.
- W2000276411 cites W2052016494 @default.
- W2000276411 cites W2053592401 @default.
- W2000276411 cites W2063580453 @default.
- W2000276411 cites W2075956377 @default.
- W2000276411 cites W4229520375 @default.
- W2000276411 cites W4250628537 @default.
- W2000276411 doi "https://doi.org/10.1159/000047260" @default.
- W2000276411 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/11799277" @default.
- W2000276411 hasPublicationYear "2001" @default.
- W2000276411 type Work @default.
- W2000276411 sameAs 2000276411 @default.
- W2000276411 citedByCount "46" @default.
- W2000276411 countsByYear W20002764112012 @default.
- W2000276411 countsByYear W20002764112013 @default.
- W2000276411 countsByYear W20002764112014 @default.
- W2000276411 countsByYear W20002764112015 @default.
- W2000276411 countsByYear W20002764112017 @default.
- W2000276411 countsByYear W20002764112020 @default.
- W2000276411 countsByYear W20002764112022 @default.
- W2000276411 crossrefType "journal-article" @default.
- W2000276411 hasAuthorship W2000276411A5021958021 @default.
- W2000276411 hasAuthorship W2000276411A5021972695 @default.
- W2000276411 hasAuthorship W2000276411A5025594460 @default.
- W2000276411 hasAuthorship W2000276411A5080795548 @default.
- W2000276411 hasAuthorship W2000276411A5080953604 @default.
- W2000276411 hasConcept C126322002 @default.
- W2000276411 hasConcept C134018914 @default.
- W2000276411 hasConcept C144027150 @default.
- W2000276411 hasConcept C152630561 @default.
- W2000276411 hasConcept C18903297 @default.
- W2000276411 hasConcept C2776482104 @default.
- W2000276411 hasConcept C2779600091 @default.
- W2000276411 hasConcept C55493867 @default.
- W2000276411 hasConcept C55969652 @default.
- W2000276411 hasConcept C71924100 @default.
- W2000276411 hasConcept C86803240 @default.
- W2000276411 hasConcept C90856448 @default.
- W2000276411 hasConceptScore W2000276411C126322002 @default.
- W2000276411 hasConceptScore W2000276411C134018914 @default.
- W2000276411 hasConceptScore W2000276411C144027150 @default.
- W2000276411 hasConceptScore W2000276411C152630561 @default.
- W2000276411 hasConceptScore W2000276411C18903297 @default.
- W2000276411 hasConceptScore W2000276411C2776482104 @default.
- W2000276411 hasConceptScore W2000276411C2779600091 @default.
- W2000276411 hasConceptScore W2000276411C55493867 @default.
- W2000276411 hasConceptScore W2000276411C55969652 @default.
- W2000276411 hasConceptScore W2000276411C71924100 @default.
- W2000276411 hasConceptScore W2000276411C86803240 @default.
- W2000276411 hasConceptScore W2000276411C90856448 @default.
- W2000276411 hasIssue "1" @default.
- W2000276411 hasLocation W20002764111 @default.
- W2000276411 hasLocation W20002764112 @default.
- W2000276411 hasOpenAccess W2000276411 @default.
- W2000276411 hasPrimaryLocation W20002764111 @default.
- W2000276411 hasRelatedWork W1766059194 @default.
- W2000276411 hasRelatedWork W1974536738 @default.
- W2000276411 hasRelatedWork W1974725979 @default.
- W2000276411 hasRelatedWork W1979139803 @default.
- W2000276411 hasRelatedWork W1983328506 @default.
- W2000276411 hasRelatedWork W2028810827 @default.
- W2000276411 hasRelatedWork W2037126054 @default.
- W2000276411 hasRelatedWork W2133072077 @default.
- W2000276411 hasRelatedWork W2141489507 @default.
- W2000276411 hasRelatedWork W3130033876 @default.
- W2000276411 hasVolume "58" @default.
- W2000276411 isParatext "false" @default.
- W2000276411 isRetracted "false" @default.
- W2000276411 magId "2000276411" @default.
- W2000276411 workType "article" @default.