Matches in SemOpenAlex for { <https://semopenalex.org/work/W2765668500> ?p ?o ?g. }
Showing items 1 to 71 of
71
with 100 items per page.
- W2765668500 abstract "Considered to have a declining world population, concern has been expressed in recent years over the conservation status of the White-Bellied Sea-Eagle (Haliaeetus leucogaster) within Australia. Although widespread, regionally it is thought to be declining in response to human induced disturbance. We used mitochondrial control region sequence data and the Australian Bird Atlas data to investigate the current genetic and spatial distribution of the species at the continental level and within and between specified regional units. At ecological timescales the Atlas Data was used to identify the extent and pattern of change in range and density of the species between three Atlas Periods (1901-1976, 1977-1981, and 1998- 2001) using a new standardized frequency measure, the Occupancy Index (OI). Sequence data were obtained from 128 individuals describing 15 haplotypes. Overall, genetic diversity was low and although there were regional differences, AMOVA results failed to provide any significant level of genetic subdivision. We suggest that the population expanded from a bottleneck approximately 160,000 years ago during the late Pleistocene, and spread throughout the continent through a contiguous range expansion. At the continental scale, there was no significant difference in the spatial extent of occupancy between Atlas Periods. However, there were considerable changes in frequency and range extent between defined regions, and there were distinct differences in the pattern of change in OI between coastal and inland areas over time. The over-riding factor associated with distributional shifts and frequency changes was apparently El Nino driven climatic fluctuation. It is clear from the combined analyses that there are signatures of both historical and contemporary processes effecting the current distribution, and that the high level of genetic exchange between regions bodes well for the long-term survivorship of the species within Australia. This study reinforces the importance of multiscale analyses both temporally and geographically." @default.
- W2765668500 created "2017-11-10" @default.
- W2765668500 creator A5021413077 @default.
- W2765668500 creator A5041749654 @default.
- W2765668500 creator A5062560873 @default.
- W2765668500 creator A5087149823 @default.
- W2765668500 date "2009-01-01" @default.
- W2765668500 modified "2023-09-27" @default.
- W2765668500 title "Contemporary Status of the White-Bellied Sea Eagle in Australia: A Tale of Many Scales" @default.
- W2765668500 hasPublicationYear "2009" @default.
- W2765668500 type Work @default.
- W2765668500 sameAs 2765668500 @default.
- W2765668500 citedByCount "0" @default.
- W2765668500 crossrefType "journal-article" @default.
- W2765668500 hasAuthorship W2765668500A5021413077 @default.
- W2765668500 hasAuthorship W2765668500A5041749654 @default.
- W2765668500 hasAuthorship W2765668500A5062560873 @default.
- W2765668500 hasAuthorship W2765668500A5087149823 @default.
- W2765668500 hasConcept C132124917 @default.
- W2765668500 hasConcept C144024400 @default.
- W2765668500 hasConcept C149923435 @default.
- W2765668500 hasConcept C159985019 @default.
- W2765668500 hasConcept C160331591 @default.
- W2765668500 hasConcept C185933670 @default.
- W2765668500 hasConcept C18903297 @default.
- W2765668500 hasConcept C192562407 @default.
- W2765668500 hasConcept C204323151 @default.
- W2765668500 hasConcept C205649164 @default.
- W2765668500 hasConcept C2780985876 @default.
- W2765668500 hasConcept C2908647359 @default.
- W2765668500 hasConcept C86803240 @default.
- W2765668500 hasConceptScore W2765668500C132124917 @default.
- W2765668500 hasConceptScore W2765668500C144024400 @default.
- W2765668500 hasConceptScore W2765668500C149923435 @default.
- W2765668500 hasConceptScore W2765668500C159985019 @default.
- W2765668500 hasConceptScore W2765668500C160331591 @default.
- W2765668500 hasConceptScore W2765668500C185933670 @default.
- W2765668500 hasConceptScore W2765668500C18903297 @default.
- W2765668500 hasConceptScore W2765668500C192562407 @default.
- W2765668500 hasConceptScore W2765668500C204323151 @default.
- W2765668500 hasConceptScore W2765668500C205649164 @default.
- W2765668500 hasConceptScore W2765668500C2780985876 @default.
- W2765668500 hasConceptScore W2765668500C2908647359 @default.
- W2765668500 hasConceptScore W2765668500C86803240 @default.
- W2765668500 hasLocation W27656685001 @default.
- W2765668500 hasOpenAccess W2765668500 @default.
- W2765668500 hasPrimaryLocation W27656685001 @default.
- W2765668500 hasRelatedWork W1228946097 @default.
- W2765668500 hasRelatedWork W1512997200 @default.
- W2765668500 hasRelatedWork W1574689898 @default.
- W2765668500 hasRelatedWork W1697366935 @default.
- W2765668500 hasRelatedWork W1972775264 @default.
- W2765668500 hasRelatedWork W1985799125 @default.
- W2765668500 hasRelatedWork W2023613094 @default.
- W2765668500 hasRelatedWork W2087008824 @default.
- W2765668500 hasRelatedWork W2087890789 @default.
- W2765668500 hasRelatedWork W2120456067 @default.
- W2765668500 hasRelatedWork W2153162854 @default.
- W2765668500 hasRelatedWork W2164011251 @default.
- W2765668500 hasRelatedWork W2193016126 @default.
- W2765668500 hasRelatedWork W2347453883 @default.
- W2765668500 hasRelatedWork W2442267681 @default.
- W2765668500 hasRelatedWork W2526664128 @default.
- W2765668500 hasRelatedWork W2754011551 @default.
- W2765668500 hasRelatedWork W3084611633 @default.
- W2765668500 hasRelatedWork W3116813171 @default.
- W2765668500 hasRelatedWork W93775251 @default.
- W2765668500 isParatext "false" @default.
- W2765668500 isRetracted "false" @default.
- W2765668500 magId "2765668500" @default.
- W2765668500 workType "article" @default.