News tagged with monarch
Female monarch butterflies on 30-year decline in eastern North America
Sep 23, 2009 |
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(PhysOrg.com) -- Female monarch butterflies in eastern North America have significantly declined over the past 30 years, a new study by a University of Georgia researcher reveals.
Monarch butterflies with a heavy load
Jul 24, 2009 |
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(PhysOrg.com) -- Scientists have succeeded for the first time in fitting monarch butterflies with a radio transmitter and in tracking them from an aircraft over a long distance on their flight northwards during ...
Genetic basis for migration
Mar 31, 2009 |
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Scientists studying Eastern North American monarch butterflies (Danaus plexippus) have uncovered a suite of genes that may be involved in driving the butterflies to migrate towards Mexico for the winter. Their research, publis ...
Continental plan to protect the monarch's migratory journey
Jun 28, 2008 |
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Canada, Mexico and the United States are joining forces to protect and conserve the Monarch butterfly, which has become a symbol of North America's shared environment.
Search results for monarch
Booming Monarch Butterfly Population Faces Obstacles, Expert Says
Biology /
Sep 06, 2006 |
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Monarch butterfly followers can expect an unusually large population of the winged insects this season they make their way to their winter home in Mexico, but a University of Kansas professor says there may be trouble ahead.
Monarch system-on-a-chip excels in early testing
Technology / Computer Sciences
Mar 23, 2007 |
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A revolutionary processor package that changes its architecture to adapt to the demands of different computing tasks more than met design expectations in recent trials.
Scientists discover molecular basis of monarch butterfly migration
Biology /
Jan 08, 2008 |
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Since its discovery, the annual migration of eastern North American monarch butterflies has captivated the human imagination and spirit. That millions of butterflies annually fly a few thousand miles to reach a cluster of ...
Migrating monarch butterflies 'nose' their way to Mexico
Sep 24, 2009 |
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The annual migration of monarch butterflies from across eastern North America to a specific grove of fir trees in Mexico has long fascinated scientists who have sought to understand just how these delicate ...
Butterfly payload to launch Nov. 16 on space shuttle
Space & Earth / Space Exploration
Nov 10, 2009 |
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When NASA's space shuttle Atlantis launches for the International Space Station on Nov. 16 it will carry a University of Colorado at Boulder butterfly experiment that will be monitored by thousands of K-12 ...
Researchers find natural section favors parasite fitness over host health
Biology /
May 12, 2008 |
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Why do parasites harm their hosts? Classic evolutionary theory predicts that parasites become more virulent because they must transmit themselves between hosts, yet scientists have found little data to support this idea, ...
Monarch butterflies help explain why parasites harm hosts
Biology /
May 14, 2008 |
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It’s a paradox that has confounded evolutionary biologists since Charles Darwin published On the Origin of Species in 1859: Since parasites depend on their hosts for survival, why do they harm them?
Monarchs fly south for the winter
Sep 12, 2005 |
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As many as 300 million monarch butterflies are now flying south from Canada and the northern United States to winter in Mexico and Southern California.
Milkweed's evolutionary approach to caterpillars: Counter appetite with fast repair
Biology /
Jul 22, 2008 |
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The adage that your enemies know your weaknesses best is especially true in the case of plants and predators that have co-evolved: As the predators evolve new strategies for attack, plants counter with their own unique defenses.
Researcher shows evolution of milkweed defense system
Biology /
Jul 22, 2008 |
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(PhysOrg.com) -- The adage that your enemies know your weaknesses best is especially true in the case of plants and predators that have co-evolved: As the predators evolve new strategies for attack, plants ...
List of search results for monarch
