Books > Earth & environment > Geography > Physical geography > Arid zones, deserts
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Nomadic Desert Birds (Hardcover, 2004 ed.)
Loot Price: R4,406
Discovery Miles 44 060
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Nomadic Desert Birds (Hardcover, 2004 ed.)
Series: Adaptations of Desert Organisms
Expected to ship within 12 - 17 working days
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My interest in the behaviour and movements of birds of arid and
semi-arid ecosystems began when my wife, Sue Milton, and I were Roy
Siegfried, Director, at that time, of the Percy approached by Prof.
FitzPatrick Institute of African Ornithology, to set up a project
to investigate granivory in the South African Karoo. Sue and I
spent some time finding a suitable study site, setting up
accommodations and an automatic weather station at Tierberg, in the
southern Karoo near the village of Prince Albert, and planning
projects. Among our first projects was a transect where we noted
plant phe nology, measured seed densities on the soil surface,
counted birds, observed ant activity, measured soil surface
temperatures and col lected whatever climate data we could at 40
sites along a 200-km oval route. Along the way, we became
interested in the marked presence and absence of birds at certain
sites - abundant birds one day, and very few birds at the same site
a month later. Subsequent counts along fixed transects through
shrublands confirmed that a number of bird species were highly
nomadic over short and long distances, locally and regionally,
leading to speculation on how widespread these movements were in
the arid ecosystems of the world."
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