,Page 30: It was too late by the time researchers sounded the alarm about emerald ash borer.

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PHOTO MACROSCOPIC SOLUTIONS CC BY-NC 2.0 5 This Issue A time of rejuvenation. By Caroline Schultz 6 Earth Watch A guide to spiders; counting reptile roadkill; reducing bird strikes; partnership for pollinators; Indigenous perspectives on conservation offsets. 35 Our Member Groups A golden jubilee. By Lisa Richardson 36 Our Community Sydenham River joins Ontario Nature?s nature reserve system. 38 Last Word Hunting turtles is a dangerous game. By David Seburn and Scott Gillingwater ?,0 MIX Fsc respoPnaglefrurces FSC' C103151 On the cover: A lone hiker is dwarfed by the mighty Bruce Peninsula. Photograph by Willy Waterton W Waterless , 1 Printing Process ? Ecology,' Ontario Nature ON THE COVER

18 On the trail of adventure

Hiking the extensive Bruce Trail can be a month-long feat of endurance or a leisurely piecemeal exploration. A few people who trekked the entire trail describe their most memorable experiences and offer advice for novices. By Conor Mihell

24 Here today, gone tomorrow

Each spring, vernal pools serve as nurseries for frogs and salamanders before drying up from the summer heat. But warming temperatures and human activity are shortening the already brief lifespans of such pools, potentially spelling doom for woodland amphibians. By Don Scallen

30 The great invasion

An army of foreign pests, from emerald ash borers to Asian longhorned beetles, is attacking Ontario?s trees. The latest incursion, by an insect that kills hemlocks, could devastate entire ecosystems that depend on these trees ? unless a defense is mounted quickly. By Mike Henry ONNATUREMAGAZINE.COM SPRING 2017 ON NATURE 3

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