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Monarch Butterfly Effect

Monarch Butterfly illustration

Re: “The Monarch Butterfly Effect” [Winter 2019] About 33 percent of Monarch Watch recoveries in Mexico are from reared monarchs. Lab rearing conditions (12 hours replicating day and night, 27 C constant temperatures) failed to provide environmental cues that lead to reproductive diapause or migration. Induction of a non-reproductive state and migration is complicated and […]

ON Nature Summer 2014

ON Nature Summer 2014

DEPARTMENTS 5 | This issueRemembering Lorne Almack.By Caroline Schultz 7 | LettersWoodpeckers revisited; cats and birds. 8 | Earth WatchClimate change wreaks havoc; Year of the Salamander; Midhurst residents oppose development; photographer Robert McCaw; birding abroad; pollinator campaign; help us grow the Lost Bay Nature Reserve. 36 | Our Member Groups  Niagara Falls Nature Club readies […]

Seasons Winter 1999

Seasons Winter 1999

DEPARTMENTS 5 | View from Locke House Who knew we had reserves? By Nancy Clark 6 | Earth Watch A deadly harvest for monarch butterflies?; kids interact with nature at the ROM; group advocates better wolf protection; coalition fights for Richmond Hill Moraine; naturalists rescue rare praire. 17 | This Season Veteran activist Bruce Hyer […]

Seasons Autumn 1996

Seasons Autumn 1996

DEPARTMENTS 8 | Earth Watch Ontario guts more environmental laws; faster action needed for species at risk; the sorry saga or Monarchs and Milkweed; municipality stands up for the Escarpment; Ontario’s new Planning Act in effect; wildlife is more than “game and fish”; update on blear-bear hunting; manage your woodlot for wildlife. 38 | Insider […]