Adventure Ausrama Blog

Mercury pollutes both the northern and southern hemisphere. The Australian tropical zone is polluted. ◘1 northern up we mercury at am it aged mercury news mercury an northern ◘1 Australia is getting mercury pollution from the northern hemisphere. Most of the deadly metal stays in the air over the top half of the planet. However, in the south most of it settles over the Australian tropics.    ◙2 northern pollutes a mercury ok hemisphere to or northern australian ◙2 Damage to the environment from quicksilver began with large scale mining, particularly gold. Now levels in the ocean are six times higher than before industrialization. Stopping all emissions of the substance today would cut the present level by half: then it would stay there.  ⦿3 hemisphere up to pollutes hemisphere ⦿3 Contaminated Fish consumed by people is poisonous and damages the body.  The peripheral and nervous systems are mainly affected. Though, contamination can occur by breathing it in. Then is can destroy dige

Bush fires are natural in Australia. Far from being a curse, they benefit the environment and wildlife generally. Of course this has to be qualified by houses being destroyed and injuries to people. Aboriginals have been intentionally lighting fires for thousands of years. Actually, it has a positive impact on kangaroo evolution. A fire promotes an increase in kangaroo numbers. To get the greatest benefit the best time for a burn-off  can be identified. Human subsistence is crucial in managing this. It compliments the ecosystem. Modern farming is detrimental to the way wildlife functions. The system is thrown off-balance. Stopping the burn-off and mono cropping changes everything. Australia needs more burning, not less. Authorities are following the wrong policy. Leaving native trees to grow tall can only lead to eventual disaster as a massive fire results as time passes. Managed fires provide more food for animals as new shoots appear. Animals can also hide

Human impact on native flora and fauna is real. There seems to be no way the detrimental affects can be ameliorated. Aboriginals have been in Australia for 40,000 years. apart from the unanswered question about extinction of mega fauna Aboriginals did not alter the external environment at all. Sedentary agriculture is the major contributing factor to habitat damage. Planting mono-crops seriously changes land features. In Western Australia, for example, water points are located at 50 sq km on average. In its pre-European natural state water holes could be found 2.5 sq km apart. This is serious change with species of native birds declining. Unless we set areas aside as pristine, protected sectors only introduced pest species will remain. Even without the pest birds, the proportion of native birds is altered. Some die out while others increase in number. The ecosystem is no longer in balance. http://www.adventure--australia.blogspot.com/ http://www.tysaustralia.bl

Mankind's actions is affecting the balance of animal life on the planet. Herbivores and their predators are declining in all regions. When a top predator ceases to exist the animal environment is no longer in balance. Focusing on individual animals is faulty research. It is important to examine The way an animal fits into the whole system. The study of top predators such as lions, wolves, and sharks is difficult. How do you test how an ecosystem would function without them? Research to date shows that losing top animals causes damaging effects from the top down. For example too many herbivores creates deforestation because they eat the shoots of young trees sprouting from the ground. Leopards declined in Africa then baboons increased in number moved into town and spread intestinal parasites to humans. Reducing the number of great wales has released carbon into the atmosphere: their feces stored carbon which fell to the ocean floor. In the past animal parks have been created w