High Quality Content by WIKIPEDIA articles! The idea of animal territories was first introduced by the British ornithologist Eliot Howard in a book published in 1920. In the 1930s it was developed further by the American ornithologist Margaret Morse Nice through research on the song sparrow. It was widely popularised by Robert Ardrey in his book The Territorial Imperative, and the popularity of this book led to an exaggerated perception of the importance of territory in social ethology. In fact only a minority of species maintain territories with well defined boundaries, within which they live and find all the resources they need. Some territories are shared by the animals around the same area and therefore it increases competition.
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