Dear all,
I'm in a hurry, as said in the previous message, so I won't be able to exte=
nd in this discussion either.
Despite the benefits that birdwatching and birders may have (already pointe=
d by Paul), there is also the scientific use of playback. Assuming that pla=
yback is only used by birders (and in a way that would stress animals) is a=
very reduced view. Playback can be essential for taxonomic purposes, which=
is the base of conservation of species (look for the texts of Edward Wilso=
n about it), as well as accessing the real distribution of the species. For=
this latter purpose, ornithologist have already had problems with inconsis=
tent and doubtful records, so on must try to be 100% sure on the identity o=
f the records. Assuming that an unknow bird call belong to "species X" when=
you have not identified it for sure is irresponsible, either making people=
and organisations waste time and money in a place where species X does not=
occur (in the case species X is endangered), or overlooking the presence o=
f a rare/endangered/new for science "species Y" (in the case species X is a=
common one).
People can search for "Suiriri islerorum" in google to try to get the paper=
that recently described this overlook species. It is only one of the many =
examples where playback was used to solve taxonomic problems.
Sorry if I have gone too "Off Topic" to this list. Talk to you again when I=
come back in two weeks. Regards,
V=EDtor Piacentini
--------------------------------------------
XIII Congresso Brasileiro de Ornitologia
30 de outubro a 4 de novembro de 2005 - Bel=E9m - PA
www.museu-goeldi.br/hpcongresso
Associe-se =E0 Sociedade Brasileira de Ornitologia - SBO
Veja como em www.ararajuba.org.br
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"Viva todos os dias da sua vida como se fosse o =FAltimo. Um dia voc=EA ace=
rta"
=09=09
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