This article isn't specifically about biodiversity but it does show that there are many discoveries of new antibiotics needed as our current antibiotics start losing their effectiveness. Many of these new antibiotics are in natural sources but as we wipe out biodiversity everywhere from rain forest to the bottom of the ocean those drugs could be lost before we've even had a chance to find them. http://news.msn.com/science-technology/extreme-medicine-the-search-for-new-antibiotics Extreme medicine: The search for new antibiotics NORWICH England (Reuters) - Pampering leafcutter ants with fragrant rose petals and fresh oranges may seem an unlikely way to rescue modern medicine, but scientists at a lab in eastern England think it's well worth trying. As the world cries out for new antibiotics, researchers at the John Innes Centre (JIC) in Norwich are also taking a bet on bacteria extracted from the stomachs of giant stick insects and cinnabar caterpillars with a taste for highly toxic plants. Their work is part of a new way of thinking in the search for superbug-killing drugs - turning back to nature in the hope that places as extreme as insects' insides, the depths of the oceans, or the driest of deserts may throw up chemical novelties and lead to new drugs. "Natural products fell out of favor in the pharmaceutical sphere, but now is the time to look again," says Mervyn Bibb, a professor of molecular microbiology at JIC who collaborates with many other geneticists and chemists. "We need to think ecologically, which traditionally people haven't been doing." The quest is urgent. Africa provides a glimpse of what the world looks like when the drugs we rely on to fight disease and prevent infections after operations stop working. In South Africa, patients with tuberculosis that has developed resistance to all known antibiotics are already simply sent home to die, while West Africa's Ebola outbreak shows what can happen when there are no medicines to fight a deadly infection - in this case due to a virus rather than bacteria. Scant financial rewards and lack of progress with conventional drug discovery have prompted many Big Pharma companies to abandon the search for new bacteria-fighting medicines. Yet for academic microbiologists these are exciting times in antibiotic research - thanks to a push into extreme environments and advances in genomics. "It's a good time to be researching antibiotics because there are a lot of new avenues to explore," said Christophe Corre, a Royal Society research fellow in the department of chemistry at the University of Warwick. More at link.
