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"Hill, Geoffrey E., author"
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red bird in a brown bag
The House Finch is among the most mundane birds, so ubiquitous and familiar across the U.S. and Canada that it does not rate a glance from most bird enthusiasts. But males have carotenoid-based plumage coloration that varies markedly among individuals, making the House Finch a model species for studies of the function and evolution of colorful plumage. In more depth and detail than has been attempted for any species of bird, this book takes a tour of the hows and whys of ornamental plumage coloration. The book begins by reviewing the history of the study of colorful plumage, which began in earnest with the debates of Darwin and Wallace but which was largely forgotten by the middle of the 20th century. Documenting the extensive plumage variation among males both within and between populations of House Finches, the book explores the mechanisms behind plumage variation and looks at the fitness consequences of condition-dependent ornament display for both males and females. The book concludes by examining the processes by which carotenoid-based ornamental coloration may have evolved.
eBook
Canadian Annual Review of Politics and Public Affairs, 2005
The Canadian Annual Review of Politics and Public Affairs is an acclaimed series that offers informed commentary on important national events and thoughtfully considers their significance in local and international contexts. This latest instalment reviews the year 2005, a year in which the first minority parliament since Joe Clark's short-lived government struggled to maintain stability.
It was also in 2005 that the Gomery Commission delivered its initial report on the sponsorship scandal, outlining irregularities surrounding the advertising program of the Liberal government. At a historic First Ministers' meeting in Kelowna, premiers and Aboriginal leaders developed a plan to improve the lives of Indigenous peoples. Canada's involvement in Afghanistan continued (albeit in ever-changing roles), and Justice Dennis O'Connor went forward with his investigation into the torture of Maher Arar. In late November 2005, Opposition leader Stephen Harper tabled a motion of non-confidence, setting the stage for the 2006 election.
eBook
Environmental Impact of Power Generation
In today's automated world, the need for economic generation of power is of vital importance. However, the industry is commonly perceived as being responsible for pollution of the atmosphere and contamination of land and water. Encompassing areas as diverse as current performance standards, the use of nuclear fuel and a historical overview of electricity supply, this 11th volume of Issues in Environmental Science and Technology aims to contribute to the public understanding of science in this important area. The emotive issues of air pollution and the ecological effects of overhead power lines are tackled, along with energy efficiency and conservation.
eBook