monarchs and milkweed a migrating butterfly a poisonous plant and their remarkable story of coevolution

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Monarchs And Milkweed

Author : Anurag Agrawal
ISBN : 9781400884766
Genre : Science
File Size : 36. 68 MB
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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.

Monarchs And Milkweed

Author : Anurag Agrawal
ISBN : 0691166358
Genre : Business & Economics
File Size : 35. 3 MB
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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.

Milkweed Monarchs And More

Author : Ba Rea
ISBN : CORNELL:31924100505985
Genre : Science
File Size : 88. 26 MB
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A field guide to the insects and spiders living in milkweed communities in North america north of the Mexican border.

Four Wings And A Prayer

Author : Sue Halpern
ISBN : 9780307363800
Genre : Nature
File Size : 81. 17 MB
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Monarch butterflies abound in Canada. We marvel at their beauty and the magic of their metamorphosis. Familiar as they are to us, these tiny creatures nevertheless harbour many secrets. Perhaps the deepest mystery is the monarchs' annual migration. Each autumn, they travel unimaginably long distances, something no other butterflies do. How do they know when to migrate? How, unguided by memory, do they navigate to their destination in the heart of the threatened Mexican jungle? Sue Halpern recounts the mesmerizing story of these mysteries, and the race to solve them. She describes the discoveries of Canadian biologist Fred Urquhart and his wife, who first encouraged amateur lepidopterists to tag butterflies. We follow her to Mexico, where she searches for butterflies. She introduces us to Don Davis, an enthusiast who has tagged an estimated 20,000 monarchs since 1985. And though terrified of flying, she takes us on a flight with University of Toronto biologist David Gibo, as they attempt to predict the flight vectors of butterflies. Astonishing, fascinating, Four Wings and a Prayer, like our encounters with these delicate winged creatures, is a rare gem. From the Hardcover edition.

The Evolution Of Insect Mating Systems

Author : David M. Shuker
ISBN : 9780199678020
Genre : Science
File Size : 48. 12 MB
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Updated version of: The evolution of insect mating systems / Randy Thornhill and John Alcock. Cambridge, Massachusetts: Harvard University Press, 1983. (Preface).

Remarkable Plants Of Texas

Author : Matt Warnock Turner
ISBN : 9780292773714
Genre : Nature
File Size : 37. 85 MB
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With some 6,000 species of plants, Texas has extraordinary botanical wealth and diversity. Learning to identify plants is the first step in understanding their vital role in nature, and many field guides have been published for that purpose. But to fully appreciate how Texas's native plants have sustained people and animals from prehistoric times to the present, you need Remarkable Plants of Texas. In this intriguing book, Matt Warnock Turner explores the little-known facts—be they archaeological, historical, material, medicinal, culinary, or cultural—behind our familiar botanical landscape. In sixty-five entries that cover over eighty of our most common native plants from trees, shrubs, and wildflowers to grasses, cacti, vines, and aquatics, he traces our vast array of connections with plants. Turner looks at how people have used plants for food, shelter, medicine, and economic subsistence; how plants have figured in the historical record and in Texas folklore; how plants nourish wildlife; and how some plants have unusual ecological or biological characteristics. Illustrated with over one hundred color photos and organized for easy reference, Remarkable Plants of Texas can function as a guide to individual species as well as an enjoyable natural history of our most fascinating native plants.

The Amazing Monarch

Author : Windle Turley
ISBN : 0989220109
Genre : Nature
File Size : 31. 80 MB
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Author and photographer Windle Turley chronicles the lifecycle of the monarch butterfly. Replete with page after page of full-colour photographs, the book shows the monarchs rarely captured wintering grounds. The contrast of the orange and black pops off the page as the reader goes on a visual tour in the high mountains of Mexico. The multifaceted work also contains poems and quotations focusing on the beauty of these tiny animals that weigh only .02 of an ounce. This book tracks the monarchs migration and interesting life span. The handful of roosting sites, located at an altitude of about 10,000 feet and only a few acres in size, may each contain 20 to 30 million monarchs. Granted almost unprecedented access by Mexican wildlife officials, Turley photographed the insects in their natural habitats at their sanctuaries in Los Saucos and at the Sierra Chincua Sanctuary -- areas unknown to outsiders until 1975.

Monarchs In A Changing World

Author : Karen S. Oberhauser
ISBN : 9780801455599
Genre : Science
File Size : 89. 80 MB
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Monarch butterflies are among the most popular insect species in the world and are an icon for conservation groups and environmental education programs. Monarch caterpillars and adults are easily recognizable as welcome visitors to gardens in North America and beyond, and their spectacular migration in eastern North America (from breeding locations in Canada and the United States to overwintering sites in Mexico) has captured the imagination of the public. Monarch migration, behavior, and chemical ecology have been studied for decades. Yet many aspects of monarch biology have come to light in only the past few years. These aspects include questions regarding large-scale trends in monarch population sizes, monarch interactions with pathogens and insect predators, and monarch molecular genetics and large-scale evolution. A growing number of current research findings build on the observations of citizen scientists, who monitor monarch migration, reproduction, survival, and disease. Monarchs face new threats from humans as they navigate a changing landscape marked by deforestation, pesticides, genetically modified crops, and a changing climate, all of which place the future of monarchs and their amazing migration in peril. To meet the demand for a timely synthesis of monarch biology, conservation and outreach, Monarchs in a Changing World summarizes recent developments in scientific research, highlights challenges and responses to threats to monarch conservation, and showcases the many ways that monarchs are used in citizen science programs, outreach, and education. It examines issues pertaining to the eastern and western North American migratory populations, as well as to monarchs in South America, the Pacific and Caribbean Islands, and Europe. The target audience includes entomologists, population biologists, conservation policymakers, and K–12 teachers.

New Mexico S Reptiles And Amphibians

Author : R. D. Bartlett
ISBN : 9780826352088
Genre : Science
File Size : 30. 46 MB
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New Mexico is home to 165 species and subspecies of snakes, lizards, turtles, frogs, toads, and salamanders. Some are ubiquitous and others are localized. If you want basic and reliable information on the lizard in your backyard or the snake you encountered on a hike in the mountains, this handy field guide is invaluable. Both complete and concise, it includes species accounts, maps, photographs, and black-and-white drawings to help you identify the species you have encountered. In addition to basic taxonomy and a glossary, the authors have included suggestions on field protocol and legalities, as well as useful information about the various herpetofauna habitats in the state.

The Life Cycles Of Butterflies

Author : Judy Burris
ISBN : 9781612122670
Genre : Nature
File Size : 43. 86 MB
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This stunning photographic guide will have butterfly enthusiasts of all ages aflutter. Judy Burris and Wayne Richards include more than 400 full-color, up-close images that present the life cycles of 23 common North American butterflies in amazing detail. Watch caterpillars hatch from eggs, eat and grow, form into chrysalides, emerge as colorful butterflies, and fly through the air. You’ll also learn which plants butterflies avoid and which native species they’re attracted to, so you can create your own backyard butterfly haven.

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