Search results for monarchs migratory
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.
Monarch butterflies help explain why parasites harm hosts
Biology /
May 14, 2008 |
4.8 / 5 (6) |
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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?
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.
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.
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 ...
Researchers find natural section favors parasite fitness over host health
Biology /
May 12, 2008 |
4.3 / 5 (4) |
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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, ...
Probing Question: What are wildlife corridors?
Dec 10, 2009 |
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Imagine that an unknown force hacks your city into two chunks. Because of this new barrier, you can’t get from your home to your office or the grocery store. Suddenly, your access to critical resources is ...
Tree-eating bugs threaten Monarch butterfly in Mexico
Nov 21, 2009 |
4.5 / 5 (2) |
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The mysterious Monarch butterfly, which migrates en masse annually between Canada and Mexico, is now facing a new peril: another insect thriving in Western Mexican forests.
Hind wings help butterflies make swift turns to evade predators, study finds
Biology /
Jan 07, 2009 |
3 / 5 (1) |
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(PhysOrg.com) -- New tires allow race cars to take tight turns at high speeds. Hind wings give moths and butterflies similar advantages: They are not necessary for basic flight but help these creatures take tight turns to ...
Queen bee promiscuity boosts hive health
Biology /
Dec 11, 2006 |
3.2 / 5 (9) |
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Though promiscuity may be risky behavior for humans, it's healthy for honeybees: Queen honeybees who indulge in sexual surfeits with multiple drones produce more disease-resistant colonies than monogamous monarchs. ...
Study confirms classic theory on the origins of biodiversity
Sep 09, 2009 |
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(PhysOrg.com) -- A Cornell study on the diversity of milkweed plants has used new techniques to prove an old theory that explains how the arms race between attacking insects and defended plants led to great ...
Rulers of the world: New book reveals what makes rich and powerful men tick
Apr 16, 2007 |
3.7 / 5 (14) |
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They have been described as 'sacred monsters' by one of their own. Now a new book looks beyond the headlines to reveal that many of the world's most powerful men were shaped by remarkably similar childhood experiences.
Research reveals the secrets of lions locked up in the Tower of London
Oct 20, 2005 |
2.2 / 5 (12) |
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Lions have appeared on the English monarchy’s coat of arms since the reign of Henry II (1133-1189). Now new research published in the International Journal of Osteoarchaeology, shows that the relationship between these early ...
Study shows genetically engineered corn could affect aquatic ecosystems
Oct 08, 2007 |
4.4 / 5 (14) |
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A study by an Indiana University environmental science professor and several colleagues suggests a widely planted variety of genetically engineered corn has the potential to harm aquatic ecosystems. The study is being published ...
