کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4386737 1304576 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Conservation puzzle: Endangered hyacinth macaw depends on its nest predator for reproduction
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
Conservation puzzle: Endangered hyacinth macaw depends on its nest predator for reproduction
چکیده انگلیسی

In the Pantanal wetlands of Central Brazil, the endangered hyacinth macaw (Anodorhynchus hyacinthinus), the largest psitacid in the world, makes its nest almost exclusively in natural hollows found in the manduvi tree (Sterculia apetala). The recruitment of manduvis greatly depends on the seed dispersal services provided by the toco toucan (Ramphastos toco), responsible for 83.3% of the seed dispersal. The toco toucan, however, is responsible for about 53% of the preyed eggs, resulting in a case of conflicting ecological pressures in which the reproduction of the hyacinth macaw is indirectly dependent on the seed dispersal services of its nest predator. The case illustrates the intricacies of biotic interactions in species-rich environments where species may be tied by indirect, subtle ecological links which conservationists should be aware of.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biological Conservation - Volume 141, Issue 3, March 2008, Pages 792–796
نویسندگان
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