Archive for February, 2008

On the Fierceness of Shrikes

Friday, February 22, 2008

I found the below story in a post to the Maine Birding List. It is about a small predatory bird called a shrike (a Northern Shrike in this instance).

These little birds are just as tough as nails. The shrike really is not that much larger than a Cardinal. I can’t imagine ordering a Big Mac as big as me…much less chasing one down and then putting it on a spit in the middle of a crowded parking lot for all to see.

It is postulated that these birds actually do this to attract mates–!!sick!!–and she calls it “a pleasure to watch”! (Actually, I guess it works seeing her reaction!)

_____________

Subject: Shrike massacre in Gardiner
From:
Date: Thu, 21 Feb 2008 11:04:04 -0600 (CST)

I just had the great pleasure of watching an adult Northern Shrike catch,
eat(twice), and impail a Northern Cardinal in my neighbor’s multi-floral rose!
The bird took its time fixing the cardinal’s wings in the bush just so, all the
while with two Black-capped Chickadees scolding it from just feet away. Every
other time I have observed a shrike has been a fleeting observation, this has
been an awesome experience! Casey Hynes, Willow St, Gardiner

Accessed February 22, 2008
http://birdingonthe.net/mailinglists/MAIN.html#1203621613

New Monkey Species Found in Remote Amazon

Tuesday, February 5, 2008

Photograph by Italo Mourthe

A new species of uakari monkey, seen above, was recently found in a mountainous region of the Amazon by a New Zealand primatologist. The animal, dubbed Cacajao ayresii, lives outside protected lands and is hunted by locals, prompting the expert to call the newfound creature “quite vulnerable.”

Dave Hansford
for National Geographic News
February 4, 2008

From: http://news.nationalgeographic.com/news/2008/02/080204-new-monkey.html
(accessed February 5, 2008)

A previously unknown species of uakari monkey was found during recent hunting trips in the Amazon, a New Zealand primatologist has announced.

Jean-Phillipe Boubli of the University of Auckland found the animal after following native Yanomamo Indians on their hunts along the Rio Aracá, a tributary of the Rio Negro in Brazil.

New uakari monkey picture

“They told us about this black uakari monkey, which was slightly different to the one we knew from Pico de Neblina National Park, where I’d worked earlier,” Boubli said.

“I searched for that monkey for at least five years. The reason I couldn’t find it was because the place where they were was sort of unexpected.”

Uakaris normally live in flooded river forests, but this one turned up in a mountainous region on the Brazil-Venezuela border, far from its nearest relatives (see map).

“There is another species of primate in that region which is very similar to the uakari,” Boubli said.

The two compete ecologically, he added, “so wherever that monkey occurs, you don’t expect to find uakaris. That’s why I wasn’t really looking in those places.”

Already Vulnerable

Boubli named the new monkey Cacajao ayresii after Brazilian biologist José Márcio Ayres.

As a senior zoologist for the Wildlife Conservation Society, Ayres—who died in 2003—helped create a protected zone in the heart of the Amazon.

But the newfound Ayres uakari, Boubli said, appears confined to a very small area outside any preserve and is hunted by locals.

“We’re going to have to create a park or reserve, because [its habitat is] not a protected area,” he said.

“The population is quite small, so they are quite vulnerable. I’m a bit concerned.”

Little is known about the creature’s habits, but Boubli said it lives in social groups and is likely a seed-eater, based on his observations of other uakaris.

Anthony Rylands, a primatologist at Conservation International, said work such as Boubli’s is vital to wildlife protection.

“Many of these tropical forests are being destroyed now,” Rylands said. (Read about threats to the world’s rain forests.)

“There’s a desperate need to save these animals, but we really need to know what animals we’re trying to save [and] where they live. Otherwise you can’t do anything about it.”

Rylands added that today more new primate species are being described in the wake of advances in DNA technology.

“The sophistication of genetic analysis from just about any material—hair, feces—means we’re able to get a much more precise view of primate diversity.

“Some of them, especially the nocturnal ones, are really quite cryptic—you can never recognize the differences simply by looking.

“Now … we’ve suddenly begun to realize that animals we previously considered to be one species are completely different creatures.”

Defining the Species

A formal description of C. ayresii has been submitted to the International Journal of Primatology.

Meanwhile, some of Boubli’s students will return to Pico de Neblina to study the new monkey’s environment and behavior.

“It’s very important to define what those monkeys are doing there, how big their range is, because we want to make a case for the Brazilian government to create a reserve,” Boubli said.

“Finding a relatively large monkey as a new species these days is pretty cool,” he said. “It shows how little we really know about the biodiversity of the Amazon.”

In 2003 Boubli described another new species from the region, the bearded saki.

And he believes that new types of spider monkeys, squirrel monkeys, and capuchin monkeys await confirmation.

“If we are still finding monkeys, imagine how many invertebrates and things like that are still out there. It’s pretty amazing.”