01239nas a2200157   4500008004100000245010700041210006900148260001200217300001400229490000800243520072000251653001100971653000900982100002000991856007001011       2007                        eng d00aGlobal Change tipping points: Above- and below-ground biotic interactions in a low diversity ecosystem0 aGlobal Change tipping points Above and belowground biotic intera  c12/2007  a2291-23060 v3623 a<p><span style="color: rgb(51, 49, 50); font-family: Arial, Helvetica, sans-serif; font-size: 14px; line-height: 26.04px;">Low diversity ecosystems are expected to be more vulnerable to global changes although they have received less attention than high diversity ecosystems. Addressing the present state of the Antarctic Dry Valley region by focusing on the potential global changes that may alter the coupling of above- and below-ground species and ecosystem processes is a realistic and critical need that has value beyond the Antarctic community. Presented here are suggested implications of global change on the Dry Valley terrestrial systems and how these effects might be manifested in the future.</span></p>10aBiggie10asoil1 aWall, Diana, H.  uhttp://rstb.royalsocietypublishing.org/content/362/1488/2291.full