|
|
 |
| 6.
Field Trip: Predatory Bird Research Group |
|
|
2006
14 November 2006. Climate
Change Pushing Bird Species to Oblivion. Excerpt:
NAIROBI, Kenya, Environment News Service
(ENS) - Birds are suffering the escalating
effects of climate change in every part
of the planet, finds a new report released
today by the global conservation group
[World Wildlife Fund] WWF at the United
Nations climate change conference in
Nairobi. The report reveals a trend
towards a major bird extinction due
to global warming. The researchers found
declines of up to 90 percent in some
bird populations, as well as total and
unprecedented reproductive failure in
others. They estimate that bird extinction
rates could be as high as 38 percent
in Europe, and 72 percent in northeastern
Australia, if global warming exceeds
two degrees Celsius above pre-industrial
levels - currently it is 0.8¼C
above those levels. "Robust scientific
evidence shows that climate change is
now affecting birds' behavior," said
Dr. Karl Mallon, scientific director
at Climate Risk Pty. Ltd of Sydney,
Australia, authors of the report. ..."We
are seeing migratory birds failing to
migrate, and climate change pushing
increasing numbers of birds out of synchrony
with key elements of their ecosystems," Mallon
said. The report, "Bird Species
and Climate Change: The Global Status
Report," reviews more than 200
scientific articles on birds in every
continent to build up a global picture
of climate change impacts. "Birds
have long been used as indicators of
environmental change, and with this
report we see they are the quintessential
'canaries in the coal mine' when it
comes to climate change," said
Hans Verolme, director of WWF's Global
Climate Change Program. The report identifies
groups of birds at high risk from climate
change - migratory, mountain, island,
and wetland birds, Arctic and Antarctic
birds, and seabirds. ...Download the
full report, "Bird Species and
Climate Change: The Global Status Report" [75
pages], or a summary at: http://www.panda.org/climate/birds
29 August 2006. Trying
to Export the Success of a Maine Seabird
Program. The New York Times. EASTERN
EGG ROCK, Me. - On a summer day, this
treeless seven-acre island at the seaward
edge of Muscongus Bay attracts visitors
from around the world. The arctic terns
screeching overhead wintered in Antarctica,
the puffins flying in out of the fog
with herring stacked crosswise in their
colorful bills came here to nest from
waters well offshore, and the seabird
biologist Lei Cao traveled more than
6,000 miles from China to work and learn
here. In the last few years, biologists
from developing countries have joined
the seabirds that summer on Maine's
islands to learn the techniques that
Project Puffin of the National Audubon
Society has used to bring seabirds back
to Maine. ...The colony that is the
focus of her research here has an estimated
35,500 breeding pairs of these tree-nesting,
diving seabirds. In 2005, Dr. Cao also
helped organize a survey of water birds
along the lower Yangtze River floodplain,
from Three Gorges Dam to Shanghai, important
wintering grounds for more than a half-million
swans, ducks and geese. ...Stephen W.
Kress began an experiment that has brought
back puffins and terns to this and other
Maine islands. He said his work was
based on restoring the nesting habitat
and controlling predators, especially
the large gulls that had taken over
since other seabirds were hunted out
100 years earlier. His team relocated
puffin chicks from thriving colonies
in Newfoundland to specially constructed
burrows here and fed them by hand. They
used decoys and recorded calls to lure
puffins and terns to the nesting grounds.
And they staffed the island each breeding
season to ensure that the large gulls,
which do not like to nest around people,
would not return.
Eastern Egg Rock now has 70 pairs of
breeding puffins. ...Imperiled seabirds
worldwide have benefited from the restoration
techniques pioneered in Maine, Dr. Kress
said. Biologists have used decoys to
establish new breeding grounds for the
critically endangered short-tailed albatross
on the Japanese island of Torishima
(the primary colony there is threatened
by eruptions from an active volcano)
and have used recorded calls to encourage
cahows (Bermuda petrels) to nest on
higher ground as their nesting islands
disintegrate. ...Jo Hiscock, who spent
the summers of 2004 and 2005 with Project
Puffin, is working for the New Zealand
Department of Conservation protecting
Chatham Island taiko petrels from predators;
once thought to be extinct, fewer than
150 of the birds remain.... |
|
Field
Trip: Predatory Bird Research Group:
Archived Articles
Archives
for Other Chapters
Recent
articles for Field
Trip: Predatory Bird Research Group |
2005
3 May 2005. Found
in Arkansas: Hope on Wings. By
JAMES GORMAN. NY Times. ...On
Thursday, the day that scientists
announced the first confirmed sighting
of an ivory-billed woodpecker in 60
years, I went for a short paddle in
the Cache River National Wildlife
Refuge, where the bird was seen. I
was with four other people, two from
the Cornell Lab of Ornithology, which
had made a major effort to confirm
the sighting, and two from the Nature
Conservancy, which has been buying
land in the area. ...The common wisdom
had been that the ivory bill was gone
for good, not a bird anymore but a
symbol, a reminder of loss. It once
lived in southern swamps and bottom
land and depended on large areas of
old forest, since it needed dead trees
for nesting and for feeding on grubs
and beetles beneath the bark. Logging
squeezed out the ivory bill, turning
it into an accusatory ghost. ...It
was the biggest of its kind, something
Americans always love. It had a 30-inch
wingspan and a jackhammer beak. Audubon
called it the "great chieftain
of the woodpecker tribe" and
others called it the Lord God bird
because when people saw it, they said, "Lord
God!" But it was gone, one of
the natural treasures that a growing
country stepped on and broke. ...Tim
Gallagher, who wrote "The Grail
Bird" about the search and the
sighting of the ivory bill, said that
Bobby Harrison, his partner on the
search, wept when he saw the bird
fly in front of his canoe. I know
of at least one person with no connection
to the search who wept on reading
the news, and I'm sure he was not
alone. Why was the discovery so powerful?
I think it is the reason for the bird's
survival. It wasn't a miracle. It
wasn't luck. And it wasn't simply
the resilience of nature, although
that helped. The reason for the astonishing
re-emergence of a mysterious bird
is as mundane as can be. It is habitat
preservation, achieved by hard, tedious
work, like lobbying, legislating and
fund-raising. ...Think about where
the bird was found, in a national
wildlife refuge, and in an area, the
Big Woods of Arkansas, that conservation
organizations and government agencies
had targeted as crucial for preservation.
Just south of the Cache River refuge
is the White River National Wildlife
Refuge. State refuges are nearby.
And the Nature Conservancy has been
buying up land in that area. ...I
think the reason the discovery is
so moving is that so many people worked
so hard to save and protect land,
telling themselves there may be an
ivory bill out there, and that protecting
the bottomland had to be important.
I'm not sure they all believed it,
but they acted as if they did. ...It
is possible that this is the last
ivory bill, that it won't appear again.
See also information at the Nature
Conservancy.
http://nature.org/ivorybill/
For Falcons as for People, Life in the Big City Has Its Risks
as Well as Its Rewards - By Melissa
Sanford. As
falcons teach their fledglings to
fly in Temple Square, the most popular
tourist site in Salt Lake City, a
cadre of human volunteers act as a
safety net.
|
|
Table
of Contents |
2004
May 2004. Altamont
Pass is the most lethal wind farm
in N. America for raptors. Wind
turbines at the Altamont Pass Wind
Resource Area (APWRA) kill more birds
of prey than any other wind facility
in North America.
TOP
|
|
Table
of Contents |
|
|
|