Global warming changes local bird populations, matching scientists’ predictions

April 3, 2016

Phys.org caption: The American robin, a familiar species across much of continental USA, has declined in some southern states such as Mississippi and Louisiana, but increased in north-central states, such as the Dakotas. Credit: US Fish & Wildlife Service

Phys.org caption: The American robin, a familiar species across much of continental USA, has declined in some southern states such as Mississippi and Louisiana, but increased in north-central states, such as the Dakotas. Credit: US Fish & Wildlife Service Read more at: http://phys.org/news/2016-03-strong-effects-climate-common-bird.html#jCp

Most serious birdwatchers can tell you about global warming and climate change, just from watching the birds at their feeders, and when those birds migrate.

Now comes a study to confirm with data and controlled observation what the birders have been saying all along. Phys.org reported:

Scientists have shown for the first time that common bird populations are responding to climate change in a similar pronounced way in both Europe and the USA.

An international team of researchers led by Durham University, UK, found that populations of bird species expected to do well due to climate change had substantially outperformed those expected to do badly over a 30 year period from 1980 to 2010.

The research, conducted in collaboration with the RSPB and the United States Geological Survey (USGS), is published in the journal Science.

It is the first real demonstration that climate is having a similar, large-scale influence on the abundance of common birds in widely separated parts of the world, the researchers said.

Among the species showing pronounced effects of climate change are common woodland and garden birds such as the wren, in Europe, and the American robin in the USA.

(Read more at: http://phys.org/news/2016-03-strong-effects-climate-common-bird.html#jCp)

Biologists especially work to predict effects of warming on plants and animals, both to help plan changes in activities such as farming and hunting, and to protect species that are endangered now, or are likely to become so due to changing climate factors.

This study shows scientists can predict with accuracy some of the wildlife effects.

These changes are consistent with changing climate suitability within those areas, the researchers said.

Other factors, such as the size of the birds, the habitats they live in and their migratory behaviour, all affect , but did not differ systematically between groups advantaged or disadvantaged by climate change.

Therefore, only climate change could explain the differences between average population trends in advantaged and disadvantaged groups, the researchers said.

The study’s lead authors, Dr Stephen Willis and Dr Philip Stephens, of Durham University’s School of Biological and Biomedical Sciences, said the findings showed there was a large-scale, consistent response by bird populations to climate change on two continents.

The study was published in the April 1, 2016 issue of Science, “Consistent response of bird populations to climate change on two continents.

Science  01 Apr 2016:
Vol. 352, Issue 6281, pp. 84-87
DOI: 10.1126/science.aac4858

Tip of the old scrub brush to Svein T veitdal:


Wildlife refuge photos, early January 2016

January 5, 2016

National Wildlife Refuges. Four days ago, most people were very fuzzy on what they are, except for members of Ducks Unlimited, and conservationists.

Here are a few Tweets to help the rest along.

Moose at the National Elk Refuge, outside Jackson Hole, Wyoming:

Wisdom is a 64-year old albatross who remarkably returns to the Midway National Wildlife Refuge every year, and has raised chicks most of those years. Midway NWR is northwest of Hawaii:

Sparky the lightning catching bull bison, at the Midwest NWR:

Every Kid in a Park shares a photo of an unnamed wild area (threw it in just for the heck of it):

Yellow-rumped warbler at the Sacramento NWR:

USFWS workers conduct a controlled burn at the Okefenokee NWR in Florida:

Hamden Slough NWR, Minnesota, is 26 years old today, January 5:

Great blue heron at Sacramento NWR:

Pied-billed grebe at Sacramento NWR:

Conservatives keep misattributing a famous quote to Thomas Paine, but it was Ed Abbey who said it. Rumor is you can find Abbey at the Caza Prieta NWR in Arizona:

Buenos Aires NWR, Arizona:

Wichita Mountains NWR, Oklahoma:

Bosque del Apache NWR, New Mexico (near Las Vegas, New Mexico, home of the first Owl Cafe and the wonderful Owl Burger):

https//twitter.com/CherylRofer/status/683725871123791872

Back to the Midway Atoll NWR:

1908 photo from Oregon’s Malheur NWR:

Working against extinction of monarch butterflies, at St. Marks NWR:

Lake Klamath NWR in Oregon, critical habitat for ducks along the Pacific flyway:

Loxahatchee NWR:

“Conservatives” want to sell these lands off, or drill for oil or gas, or mine for minerals, on many of these lands. Will these places be preserved for your great grandchildren and America’s future?


Red-breasted sapsucker in Yosemite

May 6, 2015

I really like this close-up of a woodpecker; from Twitter.

Wonder how long birds live? Red-breasted sapsuckers can live at least 7 years! Photo by Ann & Rob Simpson #Yosemite

Wonder how long birds live? Red-breasted sapsuckers can live at least 7 years! Photo by Ann & Rob Simpson #Yosemite


Snow Friday

February 27, 2015

It was clear this morning, but the snow started just before 9. It’s predicted to warm up enough that the stuff from the skies will be wet, but the ground will be stay frozen. Ice storm.

Businesses and schools shut down about noon.

Two male house finches, probably in their first year, try to eat enough to stay warm on a snowy day in Dallas. Photo by Ed Darrell

Two male house finches, probably in their first year, try to eat enough to stay warm on a snowy day in Dallas. Photo by Ed Darrell

Something about snow makes the birds hungry.  A tube feeder we filled last night emptied by noon.

At home we refill the feeders as best we can.

Rewards are high.  We’ve had six species in the yard at any time, all morning, and at least eight species total.

  • Blue jays

    A sparrow -- a chipping sparrow juvenile? -- acting as scout to find food; it was joined by at least two companions after dusting snow off of seeds in the feeder, and finding them suitable.

    A sparrow — a chipping sparrow juvenile? — acting as scout to find food; it was joined by at least two companions after dusting snow off of seeds in the feeder, and finding them suitable.

  • Cardinals
  • Two species of junco
  • House finches
  • Gold finches
  • White-winged doves
  • A sparrow (juvenile chipping sparrow?)
  • Chickadees
  • Wrens (probably Carolina, but they won’t come close to the house)

It would be nice if our downy woodpecker friends would visit, but they’ve been scarce most of the fall.

Where are the titmice?

As usual, we have some vireo or other (Bell’s, I think), but it knows us well enough to be able to sing to get us excited, but appear only when humans are not looking.

How are things in your yard?

We get the goldfinches in winter, with their winter colors; some of the males may be anticipating spring a bit.

We get the goldfinches in winter, with their winter colors; some of the males may be anticipating spring a bit.

Female cardinal and male house finch await their turn at the small bird feeder.

Female cardinal and male house finch await their turn at the small bird feeder.

 


Vulture surfing crows

September 21, 2014

Frans de Waal posted this on Facebook a while back.

Wouldn’t it be great to be able to join the crows in vulture surfing?  Doesn’t that look like fun?

A crow, surfing on a vulture. Place, time, and photographer unknown to me.  Via Frans de Waal.

A crow, surfing on a vulture. Place, time, and photographer unknown to me. Via Frans de Waal.

You’ll not convince me easily that the crows don’t know what they’re doing, and don’t have loads of fun doing it.


Eye to eye with a black vulture

May 26, 2014

Great photo out of a group at the University of George studying carrion-eating birds.  They capture vultures — black vultures are a current project.

Close up of an eye of a black vulture.  Photo by Megan Winzeler, at a University of Georgia research project.

Close up of an eye of a black vulture. Photo by Megan Winzeler, at a University of Georgia research project. Note the photographer, reflected in the bird’s eye.

This bird has the unromantic name of BLVU202.

“The last thing the old prospector would see . . .”


Night heron in the Ding Darling NWR, by Errickson

May 22, 2014

Love this photo for many reasons.

U. S. Department of Interior on Twitter:  Amazing photo of a night heron in J.N.

U. S. Department of Interior on Twitter: Amazing photo of a night heron in J.N. “Ding” Darling NWR by intern Libby Errickson. @USFWSSoutheast #Florida pic.twitter.com/PA04nE4hhD

Let me count the ways I love it:

  • It’s a great photo, of a beautiful bird — a pose you won’t see often.
  • An intern took it.  Management of our great natural treasures, the Wildlife Refuges, the National Parks, the National Monuments, is flat enough that an intern can get great experience, and spend a lifetime — and score a great picture that the poobahs in Washington like and promote.  It’s a career photo; let’s hope Libby Errickson has (or had) a great internship, and this is just the first of many career photos or studies or whatever.
  • At a time when federal management of public lands is under fire, generally unjustifiably, simply for doing a good job but not having billionaires running their press operations, this is one more small example of something done right, for a long time.  The J. N. “Ding” Darling National Wildlife Refuge is one of the oldest in the U.S.  It was created by Executive Order from President Harry Truman in 1945, and is now one of more than 500 units of National Wildlife Refuges under the management of the U.S. Fish and Wildlife Service, and other federal agencies.
  • Bonus:  Ding Darling was a political cartoonist, and a conservationist.  His pen, in pictures and words, convinced authorities to stop the sale and development of Sanibel Island in the Gulf of Mexico, preserving unique and valuable bird habitat.  This refuge celebrates one of our greatest political cartoonists.  It was renamed from Sanibel to Ding Darling NWR in 1967.  If you ask me, we don’t honor our political cartoonists enough.

More:

Video on the refuge, from the Ding Darling Society:


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