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doi: 10.1038/7211xiibpmid: N/A
An experiment in which degradable organic carbon was added to Arctic waters has come up with the counterintuitive finding that in certain conditions, the addition of carbon actually reduces total organic carbon in the ecosystem. The outcome depends on the species interactions within the food web and how they are affected by nutrient supply. When mineral nutrients are limiting, organic carbon accumulates in the system, while in a system limited by organic carbon, marine bacteria are able to outcompete phytoplankton, with the net result a reduction in total organic carbon. This result highlight how descriptions of present and future states of the oceanic carbon cycle depend upon an understanding of the stoichiometric coupling between carbon and growth-limiting mineral nutrients within the marine food web.
doi: 10.1038/7211xiiapmid: N/A
Human virus requires common receptor to infect cancer cells.
doi: 10.1038/455263bpmid: 18800078
Ecologists must research how best to intervene in and preserve ecosystems.
doi: 10.1038/455263apmid: 18800079
As Canadian scientists work to maintain their international reputation, a little encouragement from the election candidates would be appreciated.
doi: 10.1038/455264apmid: 18800080
Mapping techniques, used with care, can offer fresh insights into data about the world around us.
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