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The accurate identification of fish 'ear-bones', known as otoliths, is essential to determine the fish prey of marine and terrestrial predators. Fish otoliths are species-specific when combining size, shape and surface features, and can remain undigested for long periods. As a result, they can indicate which fish make up the diet of various predators, including cephalopod, seabird, marine mammal and fish species. Such studies are crucial for understanding marine ecosystems, and trophodynamics in particular. Increasingly, these methods are being used to understand the diet of some terrestrial predators, also extending to that of humans in archaelogical studies.
The tropical north of Australia covers almost half of the countrys total land area, is occupied by no more than about 5% of the total population, and yet has been estimated to account for close to 70% of the countrys potential freshwater resources. The region experiences strong climatic variability, both spatially and seasonally, with large areas subject to long dry periods interspersed by short periods of torrential rain. This book presents an overview of the freshwater resources of a region that has undergone a period of intense development (agricultural, industrial and social) over recent decades and for which is predicted a continuing period of development into the future. The author describes how the availability of surface, groundwater and stored freshwater, in terms of both quantity and quality, will continue to be the major factor influencing such development. It will also highlight how the emphasis on ensuring year-round water supply has, in recent decades, shifted to one of management to ensure sustainability of this vital resource and maintenance of the ecological health of what is known to be a fragile ecosystem. This book draws on the authors 25+ years of experience as a professional biologist living and working (as a teacher/researcher) in the tropical north of Australia, a region which in light of strengthening trade and other links between Australia and its neighbouring south-east Asian countries, is likely to become of increasing international significance in the future.
Essay from the year 2003 in the subject History - Australia, Oceania, grade: HD-, James Cook University (James Cook University), course: Effective Writing, language: English, abstract: In the seventeenth and eighteenth centuries, explorers from several European nations discovered various parts of Australia, but initially no nation put forward concrete proposals for either the use or the settlement of the land. Dutch explorers first discovered Australia in 1606, but they considered it as being of no economic value to their mother country. British explorers were more fortunate when, in 1768, Lieutenant James Cook, the appointed Commander of His Majesty's ship Endeavour, discovered the more inhabitable east coast of Australia. In 1770, the British government claimed the eastern half of Australia for the British realm and King George III named it New South Wales. At this time, no plans were put forward for the settlement of British people in Australia, or for any other use of the land - it became just another part of the Empire. However, in the years following Captain Cook's discovery, the idea of the newly found land in the far distance began to attract the British government, including the possible use of Australia for convict deportation. Eventually, the first settlement was a penal one and this is now generally considered to be the main reason for settlement, but the analysis of other factors such as non-convict settlers, economic exploitation of the land, empire building, and the use for strategic military purposes, suggests that convict deportation might have been initially just a convenient solution for a social problem: the disposal of the growing number of convicts that were crowded in hulks along the River Thames. Subsequent naval explorations came to suggest substantial benefits for safeguarding British interests: advantages in the competition for trade with Asia and, most importantly, the strengthening of the British Empire.
This collection of literature attempts to compile many of the classic works that have stood the test of time and offer them at a reduced, affordable price, in an attractive volume so that everyone can enjoy them.
"Are You Wanting To Learn About Australian Shepherds?" "Need To Know How To Proper Care For Your Australian Shepherd?" "Ready To Understand & Properly Care For Your Aussie Shepherd?" This Practical Guide Is Designed For Those That Might Not Really Know How To Care For Their Australian Shepherd & May Not Understand Its Needs. Believe it or not, there are efficient and effective strategies on how to care for this delicate creature, for they are not created the same as other dogs. And I give them all to you within this guide. You will finally learn how to: Understand the needs of your Australian Shepherd & how to properly care for him. Let's face it, if we don't understand the needs and how to care for this type of dog then how can we expect to raise a happy and healthy australian shepherd. Discover effective methods to raise your australian shepherd the right way. The secret to your success will be how well you apply what you discover in this guide. Learn these strategies and methods, apply them and be well on your way to having a happy, healthy dog that you relate to and understand. Here is just a bit of what You'll Learn about caring for your australian shepherd. * The aussies family tree. * Housebreaking and training your australian shepherd. * How to effectively puppy-proof your home. * How to meet your aussies nutritional needs. * Grooming your aussie properly. * Understanding your australian shepherds health needs. * Effective methods of keeping your aussie active and healthy. * And much more.... Being prepared with the right information on taking care of your australian shepherd doesn't have to be a daunting task. It should be fun, exciting and easy. Gaining the knowledge of caring for your aussie will have you on your way to a having a happy, healthy and properly trained australian shepherd!
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