William B. Sherwin

2Marianne Frommer
2Deborah CA Shearman
2Kathryn A Raphael
2John A Sved
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This article highlights advantages of entropy-based genetic diversity measures, at levels from gene expression to landscapes. Shannon's entropy-based diversity is the standard for ecological communities. The exponentials of Shannon's and the related " mutual information " excel in their ability to express diversity intuitively, and provide a generalised(More)
  • Lee A Rollins, Angela T Moles, Serena Lam, Robert Buitenwerf, Joanna M Buswell, Claire R Brandenburger +8 others
  • 2013
Some introduced populations thrive and evolve despite the presumed loss of diversity at introduction. We aimed to quantify the amount of genetic diversity retained at introduction in species that have shown evidence of adaptation to their introduced environments. Samples were taken from native and introduced ranges of Arctotheca populifolia and Petrorhagia(More)
  • Anthony Stuart Gilchrist, Deborah CA Shearman, Marianne Frommer, Kathryn A Raphael, Nandan P Deshpande, Marc R Wilkins +2 others
  • 2014
The tephritid fruit flies include a number of economically important pests of horticulture, with a large accumulated body of research on their biology and control. Amongst the Tephritidae, the genus Bactrocera, containing over 400 species, presents various species groups of potential utility for genetic studies of speciation, behaviour or pest control. In(More)
Among Australian endemic tephritid fruit flies, the sibling species Bactrocera tryoni and Bactrocera neohumeralis have been serious horticultural pests since the introduction of horticulture in the nineteenth century. More recently, Bactrocera jarvisi has also been declared a pest in northern Australia. After several decades of genetic research there is now(More)
The effective population size (N e ) is a key parameter in evolutionary and population genetics. Single-sample N e estimation provides an alternative to traditional approaches requiring two or more samples. Single-sample methods assume that the study population has no genetic sub-structure, which is unlikely to be true in wild populations. Here we(More)
Quantifying the spatial scale of population connectivity is important for understanding the evolutionary potential of ecologically divergent populations and for designing conservation strategies to preserve those populations. For marine organisms like fish, the spatial scale of connectivity is generally set by a pelagic larval phase. This has complicated(More)
Speciation is central to evolutionary biology, and to elucidate it, we need to catch the early genetic changes that set nascent taxa on their path to species status (Via 2009). That challenge is difficult, of course, for two chief reasons: (i) serendipity is required to catch speciation in the act; and (ii) after a short time span with lingering gene flow,(More)
Shannon entropy H and related measures are increasingly used in molecular ecology and population genetics because (1) unlike measures based on heterozygosity or allele number, these measures weigh alleles in proportion to their population fraction, thus capturing a previously-ignored aspect of allele frequency distributions that may be important in many(More)
Eastern king prawn, Penaeus (Melicertus) plebejus, is an endemic Australian species which is heavily exploited both commercially and recreationally in estuaries and in offshore trawl fisheries across several jurisdictions. P. plebejus shows extensive movement throughout the known distribution range during various life history stages (Montgomery et al. in(More)
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