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26 results on '"Pope, Lisa C."'

10. Unprecedented low levels of genetic variation and inbreeding depression in an island population of the black-footed rock-wallaby

Author

Eldridge, Mark D.B., King, Juliet M., Loupis, Anne K., Spencer, Peter B.S., Taylor, Andrea C., Pope, Lisa C., and Hall, Graham P.

Subjects
Biological diversity conservation -- Research, Island fauna -- Genetic aspects, Extinction (Biology) -- Risk factors, Environmental issues, Zoology and wildlife conservation
Abstract

Unprecedented low levels of genetic variation exist in an Barrow Island population of the black-footed rock-wallaby (Petrogale lateralis (Marsupialia: Macropodidae)) and the species suffers from inbreeding depression in several ways. Levels of genetic variation and fitness in island and mainland populations of the animal have been compared to assess potential negative impact of isolation and small population size. Several other island population of P. lateralis also show extremely low levels of genetic variation. Genetic factors cannot be ruled out as contributors to extinction proneness for small, isolated populations.

Published
1999

11. Lack of multiple paternity in the oceanodromous tiger shark (Galeocerdo cuvier)

Author

Holmes, Bonnie J., Pope, Lisa C., Williams, Samuel M., Tibbetts, Ian R., Bennett, Mike B., Ovenden, Jennifer R., Holmes, Bonnie J., Pope, Lisa C., Williams, Samuel M., Tibbetts, Ian R., Bennett, Mike B., and Ovenden, Jennifer R.

Abstract

Multiple paternity has been documented as a reproductive strategy in both viviparous and ovoviviparous elasmobranchs, leading to the assumption that multiple mating may be ubiquitous in these fishes. However, with the majority of studies conducted on coastal and nearshore elasmobranchs that often form mating aggregations, parallel studies on pelagic, semi-solitary species are lacking. The tiger shark (Galeocerdo cuvier) is a large pelagic shark that has an aplacental viviparous reproductive mode which is unique among the carcharhinids. A total of 112 pups from four pregnant sharks were genotyped at nine microsatellite loci to assess the possibility of multiple paternity or polyandrous behaviour by female tiger sharks. Only a single pup provided evidence of possible multiple paternity, but with only seven of the nine loci amplifying for this individual, results were inconclusive. In summary, it appears that the tiger sharks sampled in this study were genetically monogamous. These findings may have implications for the genetic diversity and future sustainability of this population.

Published
2018

12. Phylogeography of southern brown and golden bandicoots: implications for the taxonomy and distribution of endangered subspecies and species

Author

Cooper, Steven J. B., primary, Ottewell, Kym, additional, MacDonald, Anna J., additional, Adams, Mark, additional, Byrne, Margaret, additional, Carthew, Susan M., additional, Eldridge, Mark D. B., additional, Li, You, additional, Pope, Lisa C., additional, Saint, Kathleen M., additional, and Westerman, Michael, additional

Published
2018
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18. Social group size affectsMycobacterium bovisinfection in European badgers (Meles meles)

Author

Woodroffe, Rosie, primary, Donnelly, Christl A., additional, Wei, Gao, additional, Cox, D.R., additional, Bourne, F. John, additional, Burke, Terry, additional, Butlin, Roger K., additional, Cheeseman, C.L., additional, Gettinby, George, additional, Gilks, Peter, additional, Hedges, Simon, additional, Jenkins, Helen E., additional, Johnston, W. Thomas, additional, McInerney, John P., additional, Morrison, W. Ivan, additional, and Pope, Lisa C., additional

Published
2009
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24. Mating system of the Eurasian badger,Meles meles, in a high density population.

Author

Carpenter, Petra J., Pope, Lisa C., Greig, Carolyn, Dawson, Deborah A., Rogers, Lucy M., Erven, Kristien, Wilson, Gavin J., Delahay, Richard J., Cheeseman, Chris L., and Burke, Terry

Subjects
*BREEDING, *MOTHERHOOD, *PATERNITY, *SOCIAL groups, *SOCIAL status, *SEX (Biology)
Abstract

Badgers are facultatively social, forming large groups at high density. Group-living appears to have high reproductive costs for females, and may lead to increased levels of inbreeding. The extent of female competition for reproduction has been estimated from field data, but knowledge of male reproductive success and the extent of extra-group paternity remains limited. Combining field data with genetic data (16 microsatellite loci), we studied the mating system of 10 badger social groups across 14 years in a high-density population. From 923 badgers, including 425 cubs, we were able to assign maternity to 307 cubs, with both parents assigned to 199 cubs (47%) with 80% confidence, and 14% with 95% confidence. Age had a significant effect on the probability of reproduction, seemingly as a result of a deficit of individuals aged two years and greater than eight years attaining parentage. We estimate that approximately 30% of the female population successfully reproduced in any given year, with a similar proportion of the male population gaining paternity across the same area. While it was known there was a cost to female reproduction in high density populations, it appears that males suffer similar, but not greater, costs. Roughly half of assigned paternity was attributed to extra-group males, the majority of which were from neighbouring social groups. Few successful matings occurred between individuals born in the same social group (22%). The high rate of extra-group mating, previously unquantified, may help reduce inbreeding, potentially making philopatry a less costly strategy. [ABSTRACT FROM AUTHOR]

Published
2005
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