An item in the current edition of Nature pointed towards a recent
report from the US National Research Council, which had some
interesting estimates of avian mortality arising from human
infrastructure and activities. You can read the report a page at a
time at http://books.nap.edu/catalog.php?record_id=11935
The mortality assessment didn't include the number of birds killed as a
result of hunting activities etc, but would appear that humans and
their infrastructure are responsible for 1-4 million bird deaths per
day [or 1-4 bird deaths per capita per year] in the USA.
Regards, Laurie.
Environmental Impacts of Wind-Energy Projects
Committee on Environmental Impacts of Wind Energy Projects, National
Research Council
ISBN: 978-0-309-10830-0, 346 pages, 6 x 9, (2007)
http://books.nap.edu/openbook.php?isbn=0309108349&page=51
97-976 million birds - collisions with buildings
130 million birds - collisions with high tension power lines
5-50 million birds - collisions with communication towers
80 million birds - collisions with cars
72 million birds - toxic chemicals
100s million birds - domestic cats
20-37,000 birds - collisions with wind turbines
Bird deaths due to collisions with wind turbines less than 0.003% of
total anthropogenic bird deaths in the USA during 2003.
===============================
www.birding-aus.org
birding-aus.blogspot.com
To unsubscribe from this mailing list,
send the message:
unsubscribe
(in the body of the message, with no Subject line)
to:
===============================
|
