Bats .
Due to activity on the prowl at night bats difficult to use eyesight and bats use radar waves to be ultarsonik . Mechanism fruit bat radar to monitor the environment more sophisticated than previously thought by scientists .In an article in ScienceDaily , a research team led by Nachum Ulanovsky of the Weizmann Institute of Israel and Cynthia Moss of the University of Maryland reported that Egyptian fruit bats ( Rousettus aegyptiacus ) adapt to the complex environment using two tactics .
That is, changing the beam width of the sound waves, similar to the mechanism of human vision eyes adjust the focal point to see specific things, and change the emission intensity of the sound waves.
It is obtained Ulanovsky and the team after testing five Egyptian fruit bats to locate and land on a mango-shaped plastic that is placed in various locations, dark conditions, given a snag in the form of nets, and supported 20 voice recorder microphone.
A recent study also conducted a biologist at the University of Southern Denmark called the bat as the first mammal known to have a super-fast muscle. The muscles that often makes the creature known in Indonesia as the 'bat' that can hunt down meal.
Super fast muscle is located in the throat and make it able to generate bat echolocation. Echolocation is a process in which
issued bat sound waves and the waves bounce back after hitting her prey.
When bats are closer to the prey, he will issue a 160 'calls' per second. This phenomenon is called 'terminal buzz'. The discovery of super-fast muscle is so explanation of why bats can issue a call that much in a very short time.
This is remarkable because the muscular part of the group (animals) are very rare. However, super-fast muscle it only allows calls only within certain limits. However, it is enough for bats to gather information about prospective prey.
To be able to produce this conclusion, Elemans and several colleagues conducted an experiment with a type of Daubenton's bat. Bats were released in a large cage filled with worms that have been hanging on a thin wire.
From there it can be seen how the pattern of the bat in catching prey. Including the resulting sound waves to determine the exact location of the prey.
In addition, bats are one of the mammalian order that acts as a biological control of malaria spread of livestock diseases and arthropods spreader.
"The tail can bat more than 500 fish prey on insects in one night, so it is conceivable that a bat colony consists of 10,000 head could take five million heads of insects every night," said Bat experts from LIPI Biology Research Center, Prof. Dr. Ibn Maryanto Ris , in Bogor, West Java, on Monday.
Bats catch prey.
Ibn said , the loss of bat populations can threaten the outbreak of malaria . Given the presence of bats is very important for the balance of the ecosystem and useful for human life .The current condition of Indonesian population numbers dwindling bat habitat destruction due to bat.
In Indonesia there are 225 kinds of bats which consists of 77 types of fruit eaters and play a role in pollination, the remaining 148 types of insect eaters that are not directly help people in eradicating pests and diseases.
Bats with the main feed insects majority live in the cave, foraging at night to use his echolocation, so as to catch prey such as insects slightest very easily.
Continued increase in the population of Indonesia resulted in increased pressure on natural resources.
"Forest area causing dwindling bat population from Megachiroptera group also decreased," Ibnu said.
Habitat destruction and limestone karst area that is habitat for bats has threatened extinction of the creatures of the night.
"Karst became prime bat habitat. Exploitation for purposes of industrial limestone caves which destroys almost all karst in Indonesia led to the extinction of the types of bats, "Ibnu said.
In addition, the conversion of forests to plantations and agricultural areas are also the cause of declining bat populations in the wild, due to the loss of food resources and perch.
Large-scale use of insecticides in agriculture threatens the existence of insectivorous bats food sources and can also indirectly cause a decrease in population.
"Maintaining habitat is essential for maintenance of the animal population. Disruption to the ecosystem of the cave will cause ecological balance of the process is interrupted so that the impact on humans, "he said.
According to Ibn, the government must prevent the destruction of biota mining limestone cave due to industrial use.
Due to the impact of the extinction of cave fauna can affect a wider area outside the cave. Insect pests such as rising population, declining production of commercial fruit bats and services that are indirectly supported limestone cave bat habitat.
"Efforts to conserve the types of bats are very important, and should be done in earnest, given the role of bats is very valuable for ecological processes that are beneficial to humans," said Ibnu.
Bats are the only mammals that can fly. Looks like a little monkey with wings when flying. Bats can be very powerful in the air. Their wings are thin can make them fly.
Brown bat can catch 1,200 mosquito size within one hour. In Bracken Cave, Texas, there are 20 million mexico without a tail bats that live there and eat about 200 tons of insects .. every night.
Vampire bats that suck blood. Relax, there are only three species of vampire bats in the world. If you are traveling in parts of Central and South America, you might see a vampire bat bite a cow and then sucking the blood from the bite wound.
Bats do not get fat. They can digest a banana, mango, and other fruits in about 20 minutes.
At least 10 people in the last 50 years have contracted rabies from bats of North America. Bats use echo in the dark to see anything around him. Bats have poor eyesight and do more activities at night, so they rely on other ways to see. Bats send out beep sound and listen to the sound reflections from wandering. Bats are more active at night, because it's easier to hunt insects and avoid predators.
Bat to secure a quarter of all mammals amount. This means that a quarter of all mammals are bats. There are over 1000 species of bats worldwide.
More than 50 percent of bat species in the United States has decreased and endangered. Due to the industry, deforestation, pollution, and hunting can remove a lot of bats and their habitats.
Resistant to cold night. They are like many in the windy cave, but the bats kept warm by covering the body with their wings.
Anticoagulant found in the saliva of vampire bats that may soon be used to treat heart disease patients. The scientists in several countries are trying to filter enzymes contained in vampire bat saliva used to treat heart disease and stroke patients.
Bats only have cypress pups a year. Most small-bodied mammals have more offspring than bats. Such as cats, rabbits, and rats.
Bats can live longer than your pet. Age of bats varies, but some species of brown bat can live up to 30 years. Compared to other small mammals that live only a year or two more, it was impressive.
Bat clean up behind their ears. Bats spend more time cleaning them. They wash themselves and each other carefully to lick and scratching for hours.
Image ;
Thank you for reading this article. Written and posted by Bambang Sunarno.
sunarnobambang86@gmail.com
author:
http://schema.org/Personal.
https://plus.google.com/105319704331231770941.
name: Bambang Sunarno.
http://primadonablog.blogspot.com/2014/02/did-you-know-about-bats.html
DatePublished: February 15, 2014 at 16:29
7MHPNPADAEFW
Tag ; Bats.
