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Monarch Butterflies Coevolution With Milkweed - Paper

Monarch Butterflies Coevolution With Milkweed

Monarch Butterflies (Danaus plexippus) and Butterfly Weed (Asclepias tuberosa)
Monarch Butterflies and Butterfly Weed, a type of milkweed, have coevolved as plant and pollinator. This means that they both rely on one another to survive. Milkweed is the primary source of nutrition for monarchs. Monarchs only eat Asclepias tuberosa a particular species of Milkweed. The monarch relies on toxins in the milkweed to fend off predators such as birds. The toxic tendencies of the milkweed plants caused the government to attempt o eradicated the plant along roadsides and in cow pastures. This has caused a major decline in population of milkweed, which is also endangering monarchs. Milkweed relies on ...

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it has grown to be about 45 millimeters in length. The chrysalis is pale green and spotted with gold. It becomes more transparent as the butterfly gets ready to break free. The adult Monarch has a wingspan of about 4 inches. The male and female can be told apart by a gland on the wings. It is apparent as a black circle on the male, which is not present in the female. The Monarch is native to North and Central America. The plant and its pollinator have grown to depend on each other.
The Monarch has an extensive migration pattern. Every autumn thousands of monarchs in North America migrate southward over winter and begin to return in the spring. Many monarchs go as far south as Mexico. On their journey southward the monarchs lay their eggs on the milkweed plants. There are two distinct geographical locations of Monarchs in North America. The eastern and western populations, one of which is highly endangered. The eastern population breeds east of the Rocky Mountains and migrates ...

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Monarch Butterflies Coevolution With Milkweed. (2006, August 31). Retrieved November 23, 2024, from http://www.essayworld.com/essays/Monarch-Butterflies-Coevolution-With-Milkweed/51615

"Monarch Butterflies Coevolution With Milkweed." Essayworld.com. Essayworld.com, 31 Aug. 2006. Web. 23 Nov. 2024. <http://www.essayworld.com/essays/Monarch-Butterflies-Coevolution-With-Milkweed/51615>

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PAPER DETAILS

Added: 8/31/2006 01:19:52 AM
Category: Science & Nature
Type: Premium Paper
Words: 572
Pages: 3

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