Monarch
butterflies go through four stages during one life cycle, and through
four generations in one year. It’s a little confusing but keep reading
and you will understand. The four stages of the
monarch butterfly life cycle
are the egg, the larvae (caterpillar), the pupa (chrysalis), and the
adult butterfly. The four generations are actually four different
butterflies going through these four stages during one year until it is
time to start over again with stage one and generation one.In February and March, the final generation of hibernating monarch butterflies comes out of hibernation to find a mate. They then migrate north and east in order to find a place to lay their eggs. This starts stage one and generation one of the new year for the monarch butterfly.
In March and April the eggs are laid on milkweed plants. They hatch into baby caterpillars, also called the larvae. It takes about four days for the eggs to hatch. Then the baby caterpillar doesn’t do much more than eat the milkweed in order to grow. After about two weeks, the caterpillar will be fully-grown and find a place to attach itself so that it can start the process of metamorphosis. It will attach itself to a stem or a leaf using silk and transform into a chrysalis. Although, from the outside, the 10 days of the chrysalis phase seems to be a time when nothing is happening, it is really a time of rapid change. Within the chrysalis the old body parts of the caterpillar are undergoing a remarkable transformation, called metamorphosis, to become the beautiful parts that make up the butterfly that will emerge. The monarch butterfly will emerge from the pupa and fly away, feeding on flowers and just enjoying the short life it has left, which is only about two to six weeks. This first generation monarch butterfly will then die after laying eggs for generation number two.
The second generation of monarch butterflies is born in May and June, and then the third generation will be born in July and August. These monarch butterflies will go through exactly the same four stage life cycle as the first generation did, dying two to six weeks after it becomes a beautiful monarch butterfly.
The
fourth generation of monarch butterflies is a little bit different than
the first three generations. The fourth generation is born in
September and October and goes through exactly the same process as the
first, second and third generations except for one part. The fourth
generation of monarch butterflies does not die after two to six weeks.
Instead, this generation of
monarch butterflies migrates
to warmer climates like Mexico and California and will live for six to
eight months until it is time to start the whole process over again.It is amazing how the four generations of monarch butterflies works out so that the monarch population can continue to live on throughout the years, but not become overpopulated. Mother Nature sure has some cool ways of doing things, doesn’t she?
- See more at: http://www.monarch-butterfly.com/#sthash.9SJJiTPh.dpuf
Monarch
butterflies go through four stages during one life cycle, and through
four generations in one year. It’s a little confusing but keep reading
and you will understand. The four stages of the
monarch butterfly life cycle
are the egg, the larvae (caterpillar), the pupa (chrysalis), and the
adult butterfly. The four generations are actually four different
butterflies going through these four stages during one year until it is
time to start over again with stage one and generation one.In February and March, the final generation of hibernating monarch butterflies comes out of hibernation to find a mate. They then migrate north and east in order to find a place to lay their eggs. This starts stage one and generation one of the new year for the monarch butterfly.
In March and April the eggs are laid on milkweed plants. They hatch into baby caterpillars, also called the larvae. It takes about four days for the eggs to hatch. Then the baby caterpillar doesn’t do much more than eat the milkweed in order to grow. After about two weeks, the caterpillar will be fully-grown and find a place to attach itself so that it can start the process of metamorphosis. It will attach itself to a stem or a leaf using silk and transform into a chrysalis. Although, from the outside, the 10 days of the chrysalis phase seems to be a time when nothing is happening, it is really a time of rapid change. Within the chrysalis the old body parts of the caterpillar are undergoing a remarkable transformation, called metamorphosis, to become the beautiful parts that make up the butterfly that will emerge. The monarch butterfly will emerge from the pupa and fly away, feeding on flowers and just enjoying the short life it has left, which is only about two to six weeks. This first generation monarch butterfly will then die after laying eggs for generation number two.
The second generation of monarch butterflies is born in May and June, and then the third generation will be born in July and August. These monarch butterflies will go through exactly the same four stage life cycle as the first generation did, dying two to six weeks after it becomes a beautiful monarch butterfly.
The
fourth generation of monarch butterflies is a little bit different than
the first three generations. The fourth generation is born in
September and October and goes through exactly the same process as the
first, second and third generations except for one part. The fourth
generation of monarch butterflies does not die after two to six weeks.
Instead, this generation of
monarch butterflies migrates
to warmer climates like Mexico and California and will live for six to
eight months until it is time to start the whole process over again.It is amazing how the four generations of monarch butterflies works out so that the monarch population can continue to live on throughout the years, but not become overpopulated. Mother Nature sure has some cool ways of doing things, doesn’t she?
- See more at: http://www.monarch-butterfly.com/#sthash.9SJJiTPh.dpuf
Basic Facts About Monarch Butterflies
The monarch butterfly may be the most widely recognized of all American butterflies with its distinct orange, black, and white wings. While beautiful, this coloring actually sends a warning to predators that the monarch is foul tasting and poisonous. Found throughout the United States, as well as Mexico and Canada, one of the most notable characteristics about the monarch is the astonishing 3000 mile journey some will make in the fall to their wintering grounds in the Sierra Nevada Mountains of Mexico or to southern California, depending on which part of the United States or Canada they migrate.
Diet
In their larval stage monarch caterpillars feed almost exclusively on milkweed and as adults get their nutrients from the nectar of flowers. The monarch will always return to areas rich in milkweed to lay their eggs upon the plant. The milkweed they feed on as a caterpillar is actually a poisonous toxin and is stored in their bodies. This is what makes the monarch butterfly taste so terrible to predators.Population
Millions of monarch butterflies make the trip down to Mexico to roost for the winter. During the migration tens of thousands will land on a single tree in certain areas along their migratory path.Range
Did You Know?
Monarchs can travel between 50 - 100 miles a day; it can take up to two months to complete their journey to winter habitats.
Wherever there is milkweed there will be Monarch butterflies. The
monarch is widely distributed across North America, from Central America
northwards to southern Canada, and from the Atlantic to the Pacific
coasts. Three geographically distinct populations make up the total
North American range of the species, one each both east and west of the
Rocky Mountains, and one Central American. Each of these populations has
a distinct migratory pattern. Monarchs that live west of the Rocky
Mountains will migrate to southern California for winter while monarchs
that live east of the Rockies will migrate to Mexico.Monarchs can travel between 50 - 100 miles a day; it can take up to two months to complete their journey to winter habitats.
Behavior
Monarchs can produce four generations during one summer. The first three generations will have life spans from 2 - 6 weeks and will continue moving north. During this time they will mate and have the next generation that will continue the northward migration. The fourth generation is different and can live up to nine months. These are the butterflies that will migrate south for winter to either Mexico or southern California.Threats to Monarch Butterflies
It is predicted that one of the many effects of climate change will be wetter and colder winters. If they are dry, monarchs can survive below freezing temperatures, but if they get wet and the temperature drops they will freeze to death. Because hundreds of millions of monarchs are located in such a small area in the Sierra Nevada of Mexico during the winter, a cold snap there could be devastating.
Did You Know?
Monarch butterflies cannot fly if their body temperature is less than 86 degrees. They will sit in the sun or "shiver" their wings to warm up.
As the world warms, suitable habitat will begin to move northward
resulting in a longer migration. This means the monarchs may be forced
to adapt and produce another generation to reach further north. It is
uncertain whether they will be able to do so. Therefore, few monarchs
may be able to make the longer trip back to Mexico for winter.Monarch butterflies cannot fly if their body temperature is less than 86 degrees. They will sit in the sun or "shiver" their wings to warm up.
Other threats to the monarch include habitat loss and loss of milkweed which they depend upon as larva to survive. Illegal logging remains a problem today in Mexico in protected areas and is devastating monarch winter habitat.
Reasons For Hope
IUCN has designated the monarch migration a threatened phenomenon. In 1986, the Mexican government created the Monarch Butterfly Biosphere Reserve which protects 62 square miles of forests in the Sierra Madres where hundreds of million of monarchs spend each winter. The Biosphere Reserve was expanded to include 217 square miles in 2000. Local organizations are also working to stop the illegal harvesting of trees on the reserve to protect wintering habitat.
:o)
Don't ya love 'em?
ReplyDeleteYes, I do Gorges - such beautiful, delicate creatures! Mother Nature is wonderful! :o)
DeleteOooo!! I love this!
ReplyDeleteThey must like it here - we have a lot of them in the summer! So relaxing just to sit and watch them flutter about. :o)
Delete