News tagged with seed beetles
This beetle uses eggs as shields against wasps
(PhysOrg.com) -- New University of Arizona research has discovered that seed beetles from the desert Southwest shelter their broods from attacking parasitic wasps under a stack of dummy eggs.
Sep 14, 2011 |
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Storing seeds for a rainy day -- or in this case, a fire
As mountain pine beetles march across the forests of western North America, these insects may kill millions of pine trees during a single outbreak. A rise in overall temperatures over the past several years has increased ...
May 31, 2011 |
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Aggressive male mating behavior can endanger species
Aggressive male mating behavior might well be a successful reproductive strategy for the individual but it can drive the species to extinction, an international research team headed by evolutionary biologist Daniel Rankin ...
May 16, 2011 |
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Female choice benefits mothers more than offspring
The great diversity of male sexual traits, ranging from peacock's elaborate train to formidable genitalia of male seed beetles, is the result of female choice. But why do females choose among males? In a new study published ...
Oct 22, 2009 |
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Good males are bad fathers
Contrary to predictions, males of high genetic quality are not very successful when it comes to fertilizing eggs. A new study on seed beetles by Swedish and Danish scientists Göran Arnqvist and Trine Bilde shows that when ...
Jun 25, 2009 |
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Lustful beetles desire water, not sex
(PhysOrg.com) -- Female seed beetles are known for their promiscuity, a surprising fact given that the males of the species have dangerously sharp spikes on their sex organs. Now a U of T Mississauga team ...
Mar 05, 2009 |
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Mating that causes injuries
Researchers at Uppsala University can now show that what is good for one sex is not always good for the other sex. In fact, evolutionary conflicts between the two sexes cause characteristics and behaviors that are downright ...
Biology /
Feb 20, 2009 |
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