ON Nature Magazine Spring 2009

DEPARTMENTS 5 |  This IssueNature’s Economy: Building on our natural capital is a sound investment.By Caroline Schultz 8 | Earth WatchDangerously low calcium levels in boreal lakes trigger a break in the food chain; native wasps fend off non-native beetle infestations; the last road trip; where cars go to die. 36 | Bird WatchRed-headed Woodpecker—A […]