Steve Connor is the Science Editor of The Independent. He has won many awards for his journalism, including five-times winner of the prestigious British science writers’ award; the David Perlman Award of the American Geophysical Union; twice commended as specialist journalist of the year in the UK Press Awards; UK health journalist of the year and a special merit award of the European School of Oncology for his investigative journalism. He has a degree in zoology from the University of Oxford and has a special interest in genetics and medical science, human evolution and origins, climate change and the environment.
Friday 21 August 1998
BEES USUALLY come to mind when it comes to pollinating flowers, but scientists in South Africa have found an unusual relationship between a member of the milkweed family of plants and the lesser double-collared sunbird, Nectarina chalybea. Although many plants are pollinated by birds, the mechanism tends to rely simply on pollen getting stuck to the feathers as the birds feed on the nectar. But in the case of the milkweed plant, Microloma sagittatum, the pollen is precisely clipped on to the ends of the bird's tongue. According to research published in the journal Nature, by Anton Pauw of the University of Cape Town, the plant's tightly closed flowers are finely adapted to make it difficult for insects to sip nectar, but provide welcome access for the sharp beaks of the birds.
SCIENTISTS HAVE launched a campaign to save some viruses, bacteria and fungi that risk being eliminated without people realising how important they can be to a balanced ecosystem. Though these microbes can cause disease in plants and animals, the microbiologists attending the seventh International Congress on Plant Pathology want them to be treated with the same respect as rare animals and plants. David Ingram, president of the British Society for Plant Pathology and Regius Keeper for the Royal Botanic Garden in Edinburgh, is spearheading the campaign to ``preserve the pathogen''. He says: ``For every plant that becomes extinct, 30 other species go with it, and many of these will be plant pathogens. With the rapid loss of habitats and ecosystems world-wide, the increased use of fungicides, pesticides and herbicides in agriculture, and the release of genetically modified organisms, the threats to pathogen diversity in the wild are immense.''
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