Showing posts with label eucalyptus. Show all posts
Showing posts with label eucalyptus. Show all posts

Koala Fart Shock

Koala is shocked by farting.
Farting koala
"Oh my gosh, I farted!"
Funny Animal Pictures
Australian Blog
 Tys Country
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Koalas Know What to Eat

Koalas may look dozy and stupid. However, they are really smart. Nature has given them a strong identification for what is good to eat. The nutritional quality of eucalyptus leaves determines the koala population in a given area.

Koalas need nitrogen to make energy, though they move very slowly. Without this valuable mineral they would simply not survive. Eucalyptus trees also contain toxins, a potential death threat to the animal.

Eight species of eucalyptus were tested. It was found that koalas stayed away from trees carrying toxins and were attracted to those high in nitrogen.  They obviously know what is good them.  The search for food dominates their lives.

If this identification of superior food is true for koalas it must be the case for other animals. They are intrinsically guided to sources of higher quality food. Dogs for example do know which type of grass to eat to solve a health problem. It is unusual for dogs to eat grass, but sometimes they do.

If good food is scarce which it is in Australia, it is logical that sensory systems of animals would evolve to identify sources of better nutrition. In the future, environmentalists should examine the quality of food in a habitat before re-introducing endangered animals.  The carrying capacity of the environment affects its carrying capacity.
Science by Ty Buchanan
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     Australian Blog                         

Eucalytus Trees Store Gold in Their Leaves

A way of detecting gold deposits beneath the ground has been right in front of our eyes for years. Eucalyptus trees take up gold particles into their leaves. X-ray imaging could replace test drilling.

Eucalyptus roots go down a very long way in search of water. Some sinker roots reach 40 meters below the surface. If there is gold in the ground it is concentrated in the leaves. It is pushed to extremities of the tree because gold is toxic.

Research has proven the theory. Trees above gold deposits store gold, but in gold-free areas there is no stored gold. It is place specific as well: the amount of gold particles varies with the level of gold deposits in the ground.

There is no threat to the trees as the amount of stored gold is minuscule. All types of plants store minerals besides eucalyptus. However, the overwhelming number of plant species in Australia are eucalyptus.

It is no longer necessary to drill in difficult, rocky places. Taking a few leaves for analysis does not damage the trees. This will make the search for gold much easier and cheaper.
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Society by Ty Buchanan
     Australian Blog                         

Rain Forest in Northern Australia Doing Well

The northern part of Australia is getting hotter, but it is no drier. A comparison of data from the 1950s and the present shows the borders between rain forest and eucalyptus forest remained the same. However, the density of rain forest increased by 732 ha. Neither drainage, geology, topography, aspect or elevation are responsible. The climate has definitely changed. Despite a series of El Nino dry spells since the 1950s, the country is becoming wetter.

This rain forest expansion has slowed over the last 2000 years, with 25 per cent being tall open forest. Eucalyptus forests are spread out in irregular shaped pockets which are very stable. Higher CO2 is responsible for the increasing density of rain forest. The humidity keeps damage from fires low.

Overall, this is good news for the world generally. Brazilian rain forest stores 250-300 C ha–1 (carbon per hectare). Though Australian rain forest stores less, it is still significant. There is a possibility that local factors in Australia are having this effect. Yet indicators do point to global warming.
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