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Winners, losers and who cares?

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T o be successful is to be able to retain enthusiasm between the failures (Churchill probably said so).  Philosophy that explains how important failures are in one's ability to grow may apply to humans as  well as to any organisms on Earth. Last week I had a chance to help one of the graduate students Dr-to-be Stephen Formel in the field element of his PhD project. While collecting mud for his glasshouse experiment we also ventured into one of the island ecosystems of Bay Jimmy - oil contaminated part of the Gulf of Mexico .  To our surprise oil-contaminated soil did not stop mangroves from establishing but what managed to kill them was the very short period of freeze that happened last winter in Louisiana . Apparently, the xylem vessel that transport water into mangroves canopy are of weak design ( broad vessels with thin walls ), just like pipes in the whole of New Orleans - they burst open while temperature fall below 0C (32F). The mangroves do not give up t...