W L Steffen; CSIRO (Australia); et al's Australia's biodiversity and climate change PDF

By W L Steffen; CSIRO (Australia); et al

ISBN-10: 0643096051

ISBN-13: 9780643096059

ISBN-10: 0643098194

ISBN-13: 9780643098190

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Extra resources for Australia's biodiversity and climate change

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2007). Redistribution of water resources and changes in increasing numbers of stocks that are overfished and/ or subject to overfishing. 1 Changes in Australian vegetation cover due to clearing for agriculture and settlements over the past 220 years. Source: Environmental Resources Information Network. 33 34 Australia’s Biodiversity and Climate Change • • construction of watering points in grazing areas diversion of water for crop irrigation. Increasing the nutrient capital on Australia’s infertile soils, almost always in order to grow crops and fodder, has many unintended consequences for native biodiversity.

528). Australia’s biota is an important dimension of the national character, and particular groups of people, especially Aboriginal Australians, gain additional value from their association with significant aspects of our biotic heritage. Examples include red deserts, coral reefs and rainforests to koalas, kangaroos and wallabies, which are national emblems for various football teams, airlines and other national institutions. 4 Existence and ethical values Many believe that biodiversity has an ‘existence’ value.

The nature of changes occurring simultaneously across the continent, their magnitudes and rates of change are unprecedented. The past is no longer a reliable guide to the future. Thus, understanding and applying ecological principles is essential to maintain or enhance Australia’s biodiversity in this century of rapid environmental change. There are no shortcuts to sound policy and effective management. 1 presents 10 key ecological principles relevant to environmental change, with examples from the past (pre-climate change).

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Australia's biodiversity and climate change by W L Steffen; CSIRO (Australia); et al

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