Butterflies
are insects of the family of the arthropoda of the order of the lepidopteras and
I can simply say that they are flying
insects, thanks to a pair of wings that boast bright colors and that adorn
and fill with joy the environment.
There are nearby
18 000 species worldwide and they can be found
even around the Arctic, although only some few species can survive there,
however usually they are migratory species in this icy area of the planet.
Butterflies
eat basically nectar from flowers where they obtain sugars to get energy,
although some can eat derive nourishment from pollen, sap of trees and rotten
fruit. Adult butterflies drink liquids obtained from damp patches to keep
moisturized through their proboscis, which is a tubular feeding and sucking
organ. Some butterflies require more sodium than nectar can provide, so it is
common that they posen on person’s skin and drink human sweat which is provided
with salt.
Butterflies
use their antennae to detect the movement of wind and aromas that are scattered
around, so they are covered with sensory organelles known as sensilas. Most of butterflies has a very
special sense of taste, actually is up
to 200 times more sensitive to sugars that humans, chemo-receptors located across their body that work only on contact
also used to determine whether the offspring of an insect that lay eggs will be
managed able to feed the leave where they will be deposited before the eggs are put on
it.
Many
butterflies use chemical signals known as pheromones, and specialized scent
scales to determine the location of the receptive females.
Some
species are migratory, implying that they fly long distances, thanks to the
fact that they are able to navigate using solar compasses and their ability to
see polarized light by those who are skilled to navigate even during cloudy
days. Monarch butterflies are the most representative of this group by their
known travels between Mexico and the South of Canada, covering distances
between 2500-3000 miles. Other migratory species include the Painted Lady. It
has been suggested that most migratory butterflies are born in semi-arid areas
where breeding seasons are short.
One of the
reasons why it is worthwhile to study the butterflies is the understanding of
their interaction with plants and pests that allow the balance of the
environment, what scientists have called co-evolution which is part of the
process of organic diversification.
Despite
its beauty and its apparent fragility, they have developed mechanisms of
defense that has allowed them to survive in the environment. One of the methods
is camouflage or cryptic coloration that
allows you to look like a leave or mixed on the bark of a tree to hide from
predators.
Another
method is the Chemical Defense, which has developed for purposes of survival,
secreting chemicals that are toxic to other species.
Butterflies
life cycle consists of 4 different moments, the first one begins with an egg that is a tiny is round to oval-shaped or
cylindrical female between the leaves, stems, or other objects and the ability
to feed the larvae.
The
Caterpillar or larva is considered to be the next stage, in which appears a
worm with streaks or colors that make them distinctive, and emerge on the
sheets was where put the egg, which devour during its growth.
The
chrysalis is the stage of transformation of the worm his way into insect,
during which the caterpillar tissues are rolled back to give passage to the
adult structures of the insect that is already formed inside. In the majority
of species, the chrysalis are brown or green since this color serves as
camouflage in the natural environment.
Once the
chrysalis opens, it exits to the butterfly that is usually colorful and is able
to fly, reproductive stage. In adulthood the butterflies can live from one week
to one year, depending on the species.
There are
theories that suggest that butterflies are actually genetically one, but two
entities because they carry genetic elements of the worm and insect, however
this proposal still under discussion between entomologists.
There are
different periods of life depending of the kind of butterfly around their of
the cycles of life, since it has been found that some remain for months as
larvae, while others can remain as Chrysalis during winter, allowing the colorful
flight during the spring of insects that survive to freezing temperatures.
They may
have one or more cycles of offspring during the year, and some studies show
this variation is due to climatic factors, since it has been found a tendency of
a higher rate in tropical regions than in temperate regions.
There are other
butterflies with nocturnal habits or smaller known as moths, even though they
can have bright colors an a peculiar
beauty, but the fact that they are able to destroy the wood or clothes, make
them less attractive insects.
If you want to see more pics of butterflies, please, feel free to click here: http://www.flickr.com/photos/alma_dzib_goodin/sets/72157624325842948/
If you want to see more pics of butterflies, please, feel free to click here: http://www.flickr.com/photos/alma_dzib_goodin/sets/72157624325842948/