Publications by authors named "Douglas Pikacha"

Article Synopsis
  • The paradox of the great speciators describes a conflicting pattern in avian lineages in Oceania that shows broad geographic distributions indicative of strong dispersal, yet also displays significant genetic divergence suggesting limited inter-island movement.
  • A study using genomic sequencing of dwarf kingfishers from northern Melanesia found deep genetic divergence and an absence of gene flow between nearby island populations, highlighting the paradox effectively.
  • The research proposes a framework based on founder effects and changing selection pressures that explains how diverse traits and environmental factors influence dispersal capabilities, shedding light on the evolutionary dynamics of these bird lineages.
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In 2015, the Lancet Commission on Global Surgery (LCoGS) recommended six surgical metrics to enable countries to measure their surgical and anaesthesia care delivery. These indicators have subsequently been accepted by the World Bank for inclusion in the World Development Indicators. With support from the Royal Australasian College of Surgeons and the Pacific Islands Surgical Association, 14 South Pacific countries collaborated to collect the first four of six LCoGS indicators.

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