Naturalists' records dating back more than 100 years may be instrumental in determining the fate of the monarch butterfly in the 21st century.
Ecology
Jan 17, 2018
0
675
A new University of Guelph study reveals that not all milkweed plants are the same for endangered monarch butterflies looking to lay their eggs.
Ecology
Nov 9, 2017
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123
Monarch butterflies, those delicate symbols of spring and summer, should mostly be in Texas by now, winging their way to Mexico for the winter.
Ecology
Oct 26, 2017
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33
A lacy, cloud-like pattern drifting across a Denver-area radar screen turned out to be a 70-mile-wide (110-kilometer) wave of butterflies, forecasters say.
Ecology
Oct 5, 2017
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3
A much greater number of monarch butterflies perished in a snowstorm in March 2016 in Mexico than previously estimated, according to new research. Analysis of damage from the storm—and the ensuing salvage logging—sheds ...
Ecology
Sep 15, 2017
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202
Monarch butterfly populations from western North America have declined far more dramatically than was previously known and face a greater risk of extinction than eastern monarchs, according to a new study in the journal Biological ...
Ecology
Sep 7, 2017
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1101
Monarch butterfly populations have taken a nosedive over the last 20 years, according to researchers who monitor the number of butterflies that spend the winter in Mexico every year. But organizations of citizen scientists ...
Ecology
Aug 3, 2017
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102
Adding milkweeds and other native flowering plants into midwestern agricultural lands is key to restoring monarch butterflies, with milkweed sowers from all sectors of society being critically needed for success.
Ecology
Jun 29, 2017
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11
Every winter, trees on high mountains in a small area northwest of Mexico City turn orange. Close inspection reveals branches filled with brilliantly colorful monarch butterflies, rather than fiery leaves, as the eastern ...
Ecology
May 17, 2017
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3
An analysis of data in Illinois has found a link between higher county-level use of an herbicide called glyphosate and reduced abundance of adult monarch butterflies, especially in areas with concentrated agriculture. This ...
Ecology
May 17, 2017
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4
