Dataset Information

A novel gammapolyomavirus in a great cormorant (Phalacrocorax carbo).

ABSTRACT: In this study, the complete genome of a novel polyomavirus detected in a great cormorant (Phalacrocorax carbo) was characterized. The 5133-bp-long genome of the cormorant polyomavirus has a genomic structure typical of members of the genus Gammapolyomavirus, family Polyomaviridae, containing open reading frames encoding the large and small tumor antigens, viral proteins 1, 2, and 3, and the X protein. The large tumor antigen of the cormorant polyomavirus shares 45.6-50.4% amino acid sequence identity with the homologous sequences of other gammapolyomaviruses. These data, together with results of phylogenetic analysis, suggest that this cormorant polyomavirus should be considered the first member of a new species within the genus Gammapolyomavirus, for which we propose the name "Phalacrocorax carbo polyomavirus 1".

SUBMITTER: Feher E

PROVIDER: S-EPMC9234025 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature

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A novel gammapolyomavirus in a great cormorant (Phalacrocorax carbo).

Fehér Enikő E Kaszab Eszter E Bali Krisztina K Hoitsy Márton M Sós Endre E Bányai Krisztián K

Archives of virology 20220528 8

In this study, the complete genome of a novel polyomavirus detected in a great cormorant (Phalacrocorax carbo) was characterized. The 5133-bp-long genome of the cormorant polyomavirus has a genomic structure typical of members of the genus Gammapolyomavirus, family Polyomaviridae, containing open reading frames encoding the large and small tumor antigens, viral proteins 1, 2, and 3, and the X protein. The large tumor antigen of the cormorant polyomavirus shares 45.6-50.4% amino acid sequence ide ...[more]

PMID: 35633392

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Project description:Managing wildlife populations for conservation, control or harvesting involves uncertainty. Nevertheless, decisions need to be made based on the available evidence. The two main sources of uncertainty in population modelling are parameter estimates and structural uncertainty. Structural uncertainty in models is not included as often as parameter uncertainty.We present an approach where parameter and structural uncertainty (strength of density dependence) is included within a model, using the over-wintering English population of cormorants Phalacrocorax carbo L. Because of the damage caused to inland fishery interests by cormorants, there was a change in UK government policy in autumn 2004, increasing the numbers of birds that can be shot under licence.A stochastic Monte Carlo annual population model was produced to examine the effect of changes to the numbers of birds shot each year. Indices of annual population size were converted to population estimates and used to determine annual growth rates and strength of density dependence.There is strong evidence for density dependence in the data, which suggests the population is currently slightly above carrying capacity, with a mean growth rate of 4-6% per annum. The 1300 birds shot under licence in 2004/05 represent about 4.5% of the English population, and if this level of culling continues, the population would be expected to decline by 9% by 2007, compared to the long-term average. The a priori preferred model, which included all uncertainty, gave predictions for 2004/05 and 2005/06 in close agreement with field data.The model was used to produce short-term population projections, with the understanding that Adaptive Resource Management (ARM) will be adopted to iteratively update the parameters and model each year, feeding back into the numbers of available licences.Synthesis and applications. We recommend the approach used in this study of including parameter and structural uncertainty within a single model, where possible, with the proportion of iterations that utilize a particular structure dependent on the weight of evidence for that structure. This will produce results with wider confidence intervals, but ensures that the evidence for any particular model is not over-interpreted.

Dataset Information

A novel gammapolyomavirus in a great cormorant (Phalacrocorax carbo).

Publications

A novel gammapolyomavirus in a great cormorant (Phalacrocorax carbo).

Similar Datasets

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