However , continued changes in the physical environment and a growing krill fisheryin the region are likely to have an influence on penguin prey(猎物)and penguin populationitself. "T ools like this will be important for the management of the Antarctic ecosystem ,which is often considered among ...
According to official government figures, there are more than twice as many kangaroos as people in Australia, and many Australians consider them pests. Landholding farmers say that the country's estimated 50 million kangaroos damage their crops and compete with livestock for scarce resources. ...
S. (1981). Population fluctuations and range community preference of red kangaroos in central Australia. J. Appl. Ecol. 18, 27-36.Low, W. A., Muller W. I., Dudzinski M. L. & Low B. S. (1981b) Population fluctuations and range community preference of red kangaroos in central ...
Man is one of the kangaroos’ worst enemies. The Australian Aborigines hunted kangaroos as a major source of food and skins in the centuries before white Europeans came to Australia, without apparently making any dent in the total population numbers. Arrival of the first Europeans stepped up the...
In fact, Australia’s kangaroo population has almost doubled in the past decade, to 46m. Most scientists agree that state-government quotas(定额) for “harvests” by professional shooters are sustainable. (试译:事实上,澳大利亚的袋鼠数量几乎是10年前的两倍,达到了460万只,很多科学家认为应当人为地...
1: Australia is the world's largest island, is the capital of Canberra 2: Australia is large, but a small population, most concentrated in eastern coastal areas 3: Australia are rich, is famous for sheep, kangaroos 4: Australia there are many places, where the Sydney Opera House is Austra...
Focuses on the risks posed by the increase in kangaroo population in Australia. Density of grey kangaroos at the Tidbinbilla Nature Reserve; Methods used t... Reardon,Mitch - 《Australian Geographic》 被引量: 0发表: 2004年 Namadgi National Park, Australian Capital Territory Explore pristine bush...
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Novel data indicating differential mobility in red kangaroo sex/age classes were collected in western New South Wales. The more mobile (or transient) members of the red kangaroo population were males aged between 1.1 and 10 years and to a lesser extent females aged between 1.1 and 3.6 years. ...
The Aborigines believed that spirits made people animals and plants and that these spirits still live in the earth. For Aborigines no one can own the earth—the earth belongs to the spirits. In 1700 there were many Aboriginal groups with a population of 750 000 all over Australia and there ...