Monarchs and Milkweed PDF
By:Anurag Agrawal
Published on 2017-03-07 by Princeton University Press
Monarch butterflies are one of nature's most recognizable creatures, known for their bright colors and epic annual migration from the United States and Canada to Mexico. Yet there is much more to the monarch than its distinctive presence and mythic journeying. In Monarchs and Milkweed, Anurag Agrawal presents a vivid investigation into how the monarch butterfly has evolved closely alongside the milkweed—a toxic plant named for the sticky white substance emitted when its leaves are damaged—and how this inextricable and intimate relationship has been like an arms race over the millennia, a battle of exploitation and defense between two fascinating species. The monarch life cycle begins each spring when it deposits eggs on milkweed leaves. But this dependency of monarchs on milkweeds as food is not reciprocated, and milkweeds do all they can to poison or thwart the young monarchs. Agrawal delves into major scientific discoveries, including his own pioneering research, and traces how plant poisons have not only shaped monarch-milkweed interactions but have also been culturally important for centuries. Agrawal presents current ideas regarding the recent decline in monarch populations, including habitat destruction, increased winter storms, and lack of milkweed—the last one a theory that the author rejects. He evaluates the current sustainability of monarchs and reveals a novel explanation for their plummeting numbers. Lavishly illustrated with more than eighty color photos and images, Monarchs and Milkweed takes readers on an unforgettable exploration of one of nature's most important and sophisticated evolutionary relationships.
This Book was ranked at 29 by Google Books for keyword Rork.
Book ID of Monarchs and Milkweed's Books is PAhpDQAAQBAJ, Book which was written byAnurag Agrawalhave ETAG "PNC04+cxqvU"
Book which was published by Princeton University Press since 2017-03-07 have ISBNs, ISBN 13 Code is 9781400884766 and ISBN 10 Code is 1400884764
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Book which have "296 Pages" is Printed at BOOK under CategoryScience
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