What Is The Bugle Sound On Base

Forests IGAPE Várzea .... color of the water and endemic birds

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Dear Prof. Vittorio Amadio,

With reference to the article published in The New Ecology of February 2011 (pg.35), noted that the distinction she made between the forest and forest IGAPE Várzea is a little confused. I would like to point out that:

a) the forest IGAPE is regularly flooded with water from rivers that originate from dark areas geologically oldest (see Rio Negro basin in the Amazon)
b) Várzea forest is seasonally flooded with water from rivers white (actually beige color ) from the territories, such as the Andes, geologically younger (see Rio Solimões).

The distinction of color of water is essential, as the second, in virtue of the territory from which they originate, are the most rich sediments eroded. Consequently, the forest soil Várzea has a relatively rich in nutrients and is more favorable to agriculture. So is the most threatened by logging practices.

Conversely IGAPE forests generally have few mosquitoes because the larvae can not bear the organic acids that make just dark water.

The same difference in water color that is known in the Amazon basin found in the Orinoco River basin in Venezuela: Puerto Ordaz in the vicinity of the Caroni River, which originates in the Gran Sabana and is a carrier of sewage, flows into the Orinoco, but in fact the waters of different density and temperature, do not mix for a long stretch ... just like in Manaus.

At first glance, also known error: ' Hoatzin is not endemic to Amazonia. If it would mean an endemic species found only there. But I also saw this interesting bird in the Orinoco delta thus out of the Amazonian region. You can instead define endemic to South America .

Overall, the article seems to me without infamy and without praise, not bad but does not say anything of relevance and original sull'Amazonia. New label, will be asked to fill a page the magazine and she did a little online diligently collecting data. I'd give a nice 22/30. I fear that it lacks direct experience with that part of the world, who knows if there's ever been true even in the forest not as a group. The

am attaching a few pictures on the phenomenon of water that "do not mix." Best regards



Marco Zoli

ps Do not worry. His is not an isolated case: one knows how many times I happened to pick up The New Ecology and find errors of various kinds! It 's an old story ... and the Director is an old friend! Very honest, however: has never organized a scam in his life .