A Halloween Spiderpalooza

Who could be afraid of this? Juvenile peacock spider (Maratus albus)
(all photos courtesy of Jürgen Otto)

Jürgen Otto is passionate about spiders: not just any spiders, but the tiny Australian creatures known as peacock spiders. Famous for their brilliant colors and intricately patterned courtship dances, their genus, Maratus, includes sixty-seven species and subspecies.

The first peacock spider was described by British arachnologist Octavius Pickard-Cambridge in 1874. In the past decade, Otto and his colleague David Hill have discovered more than half of the currently documented species. One species has been found in China, but the others all live in Australia, primarily in the bushlands on the southern portion of the continent.

Peacock spiders are so small (the one in the photo above is sitting on a pencil) that most people don’t notice them, even in the heart of their territories. Recalling his own first encounter with a peacock spider, Otto says:

I did not know anything about them until I stumbled over one during a walk in nearby bushland [near Sydney] purely by accident. It attracted my attention in the way it jumped — it seemed more nimble than other spiders. The specimen I saw then was one of Maratus volans, and I had no idea at the time what it was or that there were other similar species.
Maratus volans in his full glory, with abdominal flaps extended
A true thumbnail portrait of Maratus volans ~ notice the folded abdominal flaps

For many years, people believed that peacocks (a variety of jumping spider) used the flaps on the sides of their abdomens to glide through the air, but no one actually had seen them use the flaps for any purpose. Eventually, Otto’s research unearthed a suggestion or two that Maratus volans used its flaps in courtship, and his work with the spiders confirmed it.

When a male peacock spider encounters a female, he initiates courtship by waving his legs like semaphore flags. If she seems interested,  he raises the flaps at his sides and displays his brilliantly colored abdomen while dancing back and forth.

If he performs well and the female finds him acceptable, they will mate; occasionally, the female will do her own little dance of acceptance. But color patterns and dance moves are species-specific, meaning that males with atypical dances, or color patterns that resemble those of a different species, can come to a sorry end.

There’s little sentimentality among female peacock spiders. If she doesn’t approve of the dance, or mistakes his abdominal pattern for that of an unfamiliar species, she’ll often have the male for lunch — as the main course.

 
The mating dance of a Maratus personatus (who apparently was refused, but lived to tell the tale)

Watching one of Otto’s  videos, it’s easy to assume the spiders are dancing in the wild. But most videos are shot in his home, where he maintains a “spider room” for studying and documenting the various species in every stage of development.

At one point, he kept a pile of leaves on the dining room table for photo shoots, until his wife objected, and other accomodations had to be made. As for the filming itself, Otto’s techniques are relatively simple:

 When I started to film them, I had no idea about how to go about it. I simply thought one day to explore the video option on my DSLR, a Canon 7D with a 100mm macro lens. So I just kept filming them and added scene after scene to my collection. I had no prior experience in editing video footage.
The equipment that professional documentary makers use is very different from mine, with much larger cameras, big steady tripods etc., and for a while I thought that getting such equipment would be something to strive for.
However, I now realize that the small, simple, and cheap setup I used was almost ideal for the job as it allowed me to follow the spiders on the ground and use natural lighting. Once you find a place where they occur, you simply have to search for specimens and watch them or, better, find a pair that is already engaged in some courtship.

Otto’s affection for his subjects is obvious, as is his hope that people introduced to them will develop the same affection. He often mentions that the spiders are considered cute, even by self-declared arachnophobes, and that he “loves the way they interact with their environment: how they exhibit fear, excitement, and curiosity.” Seen through his eyes, the spiders are less fearful than fascinating: the very opposite of the Halloween horror they’re often portrayed to be.

What’s also clear is that he enjoys their dancing, and sometimes is amused by it. I suspect only someone with a great deal of affection for these creatures and an ability to be amused by them would have come up with this video. It’s a musical tribute with a sly title. For the male peacock spider, staying alive certainly does depend on his ability to dance his tiny little heart out.

Comments always are welcome.
For more videos, see Jürgen Otto’s YouTube channel.  For photos, try his Flickr page.
For a hilarious video of a peacock spider dancing to the Village People’s “YMCA,” click here.
For some serious science, PECKHAMIA, the major publication of the Peckham Society, is a good source. Founded in 1977 as an informal alliance of amateur and professional naturalists or scientists with an interest in jumping spider research, the society was named in honor of George and Elizabeth Peckham, early pioneers in their study.

Me, My Selfie, and I

selfieOn the banks of Fox Creek
(click any photo to enlarge)

After a combination of circumstances and a good bit of cyber-frustration led me to purchase an iPad early in the course of my recent travels, a friend pointed out what she clearly assumed to be a side benefit. “Just think!” she chirped. “Now you can send us selfies while you travel!”

Having known me for years, she should have known — but clearly didn’t — that it hasn’t been the lack of a camera phone or its obnoxious accessories that’s excluded me from the ranks of selfie enthusiasts. I simply lack the inclination. The thought of photographing myself when there’s so much else of interest in the world to record seems faintly ridiculous. Continue reading

Sloughing Off at the Slough

(Click image for greater size, clarity)

One of my favorite Texas sayings, common as cornbread, certainly applies to turkey vultures. Hopping along roadsides, guarding their carrion, or awkwardly flapping away to cluster on the branches of dead trees, they’re so common they’re rarely noted, and more rarely remarked.

Vultures tend to feed and roost in small flocks, so this pair, relaxed and sun-saturated atop an old tank, seemed unusual. I stopped the car and stepped out, browsing the landscape for more birds. The skies were empty. So were the fence posts, the windmill, the ditches, and the roof of a small, nondescript shed.

At the time, I didn’t know that turkey vultures often seek solitude during mating season. Foregoing nests, pairs separate themselves from the larger flock in order to lay their eggs in the shelter of rocky ledges, hollow trees, or even deserted buildings. I may have found a mated pair: birds who’d found a cozy, out-of-the way place to raise their family. On the other hand, since it’s hard even for experts to distinguish girl vultures from boy vultures, the birds could have been a couple of hens trading gossip, or two dudes, just hanging out.

Unwilling to disturb them, I lingered at the ditch’s edge, toying with other explanations for their behavior. Maybe they’d found a nice, big carcass, and were indulging in a post-dinner nap. We’d had a stretch of wet, gloomy days; perhaps they’d found the warmth of the metal appealing. Then, it occurred to me. Perhaps they were the lazy ones of the flock: birds who’d decided to spend Sunday afternoon just sloughing off.


All around the sloughs and ponds of the wildlife refuge, it did seem as though sloughing off was the order of the day.

Seemingly captivated by a growing conflict across the water, this plump American coot (Fulica americana) and colorful Northern shoveler (Anas clypeata) could have been watching Netflix.

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In fact, they were watching a determined and quite noisy grackle harass a sleeping white ibis (Eudocimus albus). I watched, too, until the ibis woke with an expression that seemed to say, “Who let this guy into the hotel?”

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Stretching one leg, then the other, the ibis unfolded with a sigh, gave the grackle a look of consummate irritation, and headed for the water. I swear I heard him saying, “Well, as long as I’m up, I might as well get a snack.”

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This little pied-bill grebe (Podilymbus podiceps), was more courteous to his sleeping neighbor. Circling a coot, the grebe caused barely a ripple. Even its dives — for a fish, a crawfish, perhaps for an insect — were neat and tidy.

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Eventually, the coot awoke and began to preen, and the grebe slipped quietly away.

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(Click image for greater size, clarity)

A pied-bill grebe decked out for mating season is a delightful sight. Its thick, silver and black-banded bill is the reason for the pied in its common name. The word comes to us from Middle English, where it referred to the black and white magpie. Later, the word came to mean “decorated or colored in blotches,” as in Gerard Manley Hopkins’s poem, “Pied Beauty”:

Glory be to God for dappled things –
For skies of couple-colour as a brinded cow;
      For rose-moles all in stipple upon trout that swim;
Fresh-firecoal chestnut-falls; finches’ wings;
Landscape plotted and pieced – fold, fallow, and plough
     And áll trádes, their gear and tackle and trim.

The pied-billed aren’t particularly sociable, and rarely flock. Shy and solitary, they’re quick to dive, often hide in vegetation, and sometimes respond to perceived threat by sinking down into the water until only their head remains visible. Water trapped in their feathers gives them a good bit of control over their buoyancy, so they can expose as much or as little as they please.

Like dabbling ducks, (mallards, teal, widgeon, and others) coots also “tip tail” when searching for food.

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More closely related to sandhill cranes than to ducks, coots belong to a family (Rallidae) which includes rails and gallinules. Awkward in flight, they’re even more graceless during take-offs and landings, and the long, running starts necessary to get them airborne are faintly ridiculous. They do migrate, but guidebooks say they travel mostly at night: perhaps to avoid embarassment.

Among their favored foods are the stems, leaves, and seeds of sedges and grasses, and a variety of algae. They’ll often dive down to pull fresh sprouts, and sometimes find themselves tangled in dinner when they resurface. In Cajun country, where coots are known as poule d’eau, or water hens, they may find themselves on the dinner table, served up in a tasty poule d’eau gumbo.

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Like coots, common gallinules (which used to be called moorhens) also dabble and dive. They’re quiet and secretive birds, but those candy-corn-like bills and facial shields tend to give them away. Even in a stand of thick reeds or other vegetation, it’s not hard to see the flashes of red, yellow, and orange that signal their presence.

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(Click image for greater size, clarity)

While vultures snoozed and other water birds dabbled, dove, or waded their way through the afternoon, this pair of Northern shovelers (Anas clypeata) were rousing themselves for an afternoon swim.

(Click image for greater size, clarity)
(Click image for greater size, clarity)

Among the most elegant of water birds, the shape of the shoveler’s bill makes clear how it received its name. 

According to the Cornell Lab of Ornithology, the shoveler’s bill has about 110 fine projections called lamellae along its edges. It “forages by swimming along with its bill lowered into the water. Seeds of sedges, bulrushes, saw grass, smartweeds, pondweeds, algae and duckweeds, as well as aquatic insects, mollusks and crustaceans, are consumed by filtering the water, which is taken in at the bill tip and expelled from its base.”

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Several guides, including Audubon, note that the shoveler doesn’t commonly tip its head and upper body forward into the water. According to other guides, it seldom dives, and rarely up-ends.

Seldom and doesn’t commonly are ambiguous, of course, and rarely doesn’t mean never.

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Ogden Nash may have been thinking of other dabblers — particularly the mallards — when he wrote his verse, but it applies equally well to this pair of shovelers:

Behold the duck.
It does not cluck.
A cluck it lacks.
It quacks.
It is specially fond
Of a puddle or pond.
When it dines or sups,
It bottoms ups.

Meanwhile, back on land, grackles chattered and chirred.  One, obviously out of sorts, flew over to voice a complaint.

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“You think it’s all sunshine and shrimp dinners around here?” he said. “You think it’s easy, living among these preening water birds? Let me tell you — there are times this isn’t such an easy world.”

“What’s the problem?” I asked. “It can’t be food, since you don’t eat what a duck eats. Is it a territorial squabble?” “Unfortunately, not,” he said, “though I hope to find a girl to fight over. Right now, it’s getting a bath that’s the problem.”

That stopped me. “There’s as much water as land around here,” I said. “Can’t you find a suitable pool?” “I suppose I could,” he said, “but I have a favorite, and I can’t use it. Look.”  He tipped his head, pointing with his beak to the bank across the road.

Following his gaze, I stared at the bank. “I think it’s time for Plan B,” I said. With just the slightest tremor of a wing and a spread of his tail, he said, “I don’t have a Plan B.”  “Well,” I said, “I think you need to make one.”

(Part 1 of 2: to be continued)

As always, comments are welcome.

An End to Autumn Envy

My Iowa Autumn, 1949

Let big people call them leaves. My dollie and I knew them for what they were: piled-up heaps of love, colorful and crisp, raked and arranged, ready for fort-building, rolling, jumping, falling again and again into the safe, soft cushion provided by the trees.

It was a season of falling: falling leaves, windfall apples redolent of cider or sauce, drifts of smoke falling from chimneys and sloping around our ankles. We pressed fallen leaves between sheets of waxed paper, to hang in windows. We carried leaf bouquets to favorite teachers, and decorated supper tables for the pleasure of our families. We named their colors to suit ourselves and reflect our world: bittersweet, cornstalk, snow-fence brown.

And we traveled. Sometimes near and sometimes far, far beyond the boundaries of our maple and elm-filled yards, we gloried in even more dramatic autumn colors along the rivers and hills. Brilliant as sunsets, heart-rending in their beauty, the riotous mixture of oak, hard maple, and ash blinded us to the realities of a winter yet to come.
Continue reading

Midsummer ~ In Massachusetts

The Pond on Moosehorn Road ~ Stephen Gingold (Click image to enlarge)

 

bark-heavy sentry
watches from shadowed sedges
frail lily floats

 

 

The metallic drone of cicadas; desiccated and drooping crops; fish sinking toward cooler water even as rising temperatures slow life’s pace for body and mind: such is the arrival of midsummer on the Texas coast.

It’s a season suited for lighter fare, and so I’m offering a small series of images matched with poetry: tokens of a season I love.

All photos and haiku are mine, with the exception of this photo, taken by one of my favorite nature photographers. Steve Gingold specializes in the landscape of Western New England. His natural world differs significantly from my own, but it’s equally beautiful. You can find more at his Nature Photography blog.


Comments are welcome, always
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Knowledge and Love

The Big Green Guy ~ Photograph by Steve Schwartzman
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This two-inch marvel, munching away on a guara leaf and clearly unwilling to interrupt his meal in order to tidy up for the camera, has been tentatively identified as the larva of a white-lined sphinx moth: Hyles lineata. Scientific classification aside, he’ll forever be known to me as The Big Green Guy, a pet name I gave to him when we were introduced.

The first time I saw the creature, I dissolved into giggles. His vulnerable chubbiness, his tiny, multi-purpose feet, his air of concentration, his apparent lack of embarassment at being revealed as a messy eater: all evoked a response of absurd protectiveness.

Unable to help myself, I emailed his image to friends. Without exception, they reached the same conclusion: “It’s a caterpillar.” “Yes,” I said. “It is a caterpillar. But it’s not just any caterpillar. It’s an Alice-in-Wonderland, let-me-look-you-in-the-eye-and-ask-you-some-questions caterpillar.”
Continue reading