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Welcome to Riverswind notes

I hope you will join in my adventures here in Humboldt County and elsewhere as I explore nature & people.



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Showing posts with label Humboldt State University. Show all posts
Showing posts with label Humboldt State University. Show all posts

Wednesday, March 2, 2011

Watching Snowy Plovers

Western Snowy Plover and Sanderling

On some days while walking along Clam Beach and Little River State Beach I am fortunate to see the tiny Snowy Plover crouched low and motionless among the beach debris or in a shallow depression such as a human footprint in the sand.


When I walk past them they will often move away slowly walking as though they are stiff from sitting like an old man who has been glued to his chair for hours. During the winter months they can often be seen in loose flocks.


I watched 25 Snowy Plovers recently fly before me in synchrony flashing their wing markings along the surfs edge first south then turning abruptly in unison and flying back the other way.

They all landed abruptly like leaves dropping from a tree and instantly became invisible to the untrained eye.
The above is a photo just after landing showing how well they blend in with their background appearing as beach debris.
The majority of the individuals that I see have been banded by local biologists Mark Colwell, Matt Johnson and their students at Humboldt State University who are studying them to learn more about their biology, behavior, and movements.

The Pacific Coast population of the Western Snowy Plover has been listed as threatened since 1993 by the Federal Government due to declining numbers and decreased habitat as a result of introduced invasive vegetation such as European Beach grass. The Plover lays its eggs in depressions in the sand or river rock in open areas along the coast from Washington to Northern Baja, Mexico.

The threats to this “cute” sparrow sized plover are many and include natural predators like falcons, raccoons, coyotes, owls, fox, crows and ravens. The later has been determined to be the cause of most nest failures due to predation of the eggs when the parent has been disturbed.

However one of the major threats to the plover is human disturbance including Horses, bikes, vehicles, kite flying, and dogs running loose in the plovers nesting habitat.

Each time the tiny plover takes flight when disturbed they use valuable energy and often abandon their nest site making the eggs more vulnerable by increasing the opportunity for nest failure due to predation.

Much effort in cooperation with USFW and other Government agencies has been given to protect and improve the plover’s habitat.


The California Conservation Corps has been working on invasive
 European Beach grass removal west of the highway 101 Vista Point overlook by digging the grass up and burning it.



The above photo looking north toward the mouth of the Little River shows the roped off area that has been restored by mechanical removal of the European Beach Grass and then restoration with native plants.
.

This work allows native plants to compete and provides a more open
foredune habitat for the Snowy Plover.
The signs at the perimeter of the roped off area at Little River State Beach
do not keep unleashed dogs from running into their habitat.

Recently my wife and I were out photographing and observing Snowy Plovers.
We observed a middle aged woman and her unleashed dog walking along the roped off area.  The dog took off into the Snowy Plover protected habitat and I waved to the lady to indicate that her dog should not be there.

Her pace quickened as she approached me and she shouted "you better have a badge!"   Then before I could explain why we were concerned  she blurted out "I'm tired of this shit, and I'm calling 911." As she walked past us we heard her say pointing to the restoration area, "look what they've done already!"

She phoned someone while we watched her looking back at us as if we had ruined her day.

This is the challenge those of us concerned about protecting this tiny plover have when trying to educate people who simply don't care or refuse to listen to the facts.  I personally feel that most people are willing to listen and learn and hopefully change.

There are volunteers who often hand out educational material but I doubt that it changes those who just don't care.
Anyone reading who would like to volunteer go here.http://www.westernsnowyplover.org/volunteering.html
I would like to hear your ideas on how best we can protect this beautiful tiny plover whose numbers are declining.  Should people who ignore signs and allow their unleashed dogs to run through Snowy Plover habitat be ticketed? 

Monday, February 2, 2009

Exploring the Redwoods

My wife and I are taking advantage of our time together before she starts her new position at Humboldt State University by exploring the coast and redwoods. We recently spent the day exploring the beach near Redwood Creek at the Redwood National Park information center and then drove to Lady Bird Johnson Grove Nature Trail.
It was a crisp clear day and the sea was moderately calm.

We walked along a beach strewn with weathered drift wood as well as some recently uprooted deciduous trees, and numerous mussel shells and crab carapice. Our short walk takes us north along the beach to the mouth of Redwood Creek where we observed a Harbor Seal foraging. The seals head rises above the surface of the water then abruptly disappears for over 2 minutes before appearing again. The water is clear and the seal is lingering where the sea meets the river. Gulls line the mouth of the river's bank where tons of tiny polished rocks glisten in the sun, remnants of years of tidal wave and sand scouring action.

Next we drive north to Lady bird Johnson Grove Nature trail in Redwood National and State Park.
Lady bird Johnson's campaign to preserve America's natural beauty led to the dedication of this 300 acre grove in 1969 in her name by the then President Nixon. It was enlarged in 1978 and included more of the Redwood creek watershed much of which had been clear cut. This area underwent much needed restoration in the coming years to preserve less than 4% of the remaining old growth forest.

As we walk through this magnificent forest of giant trees some 600 to 800 years old we are struck by the silence on a windless day when we stop and listen.
Only the faint sound of a Kinglet high in the canopy or the distant tapping of a woodpecker is heard by the discerning ear.


Today crystal blue skies peer through tiny windows in the canopy high above these majestic and ancient giants
which humble us by their incredible size and dimensions as we gaze up from their base. We both feel privileged to be here and look forward to "scratching the surface" in further explorations of these incredible forests along the northern California coast.