Showing posts with label forests. Show all posts
Showing posts with label forests. Show all posts

Thursday, April 24, 2014

Windy names

April showers may bring May flowers, but March’s winds bring April’s windflowers.

At least, that’s what old-timers believed, not only calling our early spring anemones “windflowers” but scientifically naming them after anemos, the Greek word for wind. In fact, in Greek mythology, Anemone was a breezy nymph who hung out with Zephyr, god of the west wind.

Wood Anemone and Rue-Anemone, two white buttercups of our April woods, could thank the wind for more than their names. Lacking much color or scent in a chilly season when few insects are about, they rely on the wind to disperse their pollen.  

However, the naming gurus seem to have gone awry when labeling our common Rue-Anemone. The plant was long called Anemonella thalictroides, which literally means “a little anemone that looks like a thalictrum” – thalictrum being meadow rue, a summertime wildflower. But two decades ago, scientists reclassified the plant, deciding it really is a meadow rue and calling it Thalictrum thalictroides: “A meadow rue that looks like a meadow rue.”

Really!

Wednesday, January 23, 2008

Winter harvest

There’s an old saying that firewood keeps you warm twice: Once when you’re cutting it and once when you’re burning it. But that’s not why winter was the time for woodcutting among the old farmers who lived in town a century or three ago.

Winter was woodcutting time for more practical reasons. First and foremost, farmers had the time – there were no crops that needed tending in January and February.

In winter, it was easier to pull large loads of wood on a sledge or “stoneboat” because the winter woodlands were usually covered with snow or ice and the forest floor did not have much of the thick underbrush that made travel among the trees difficult at other times.

The wood was drier in winter, lacking the sap found in spring, summer and fall. Logs would season more quickly and be safe and ready for the following winter’s home fires.

Good farmers loved the outdoors and always needed something to do. Wood was their winter harvest.

Monday, January 21, 2008

Winter hoods

Along the Atlantic Coast south of Cape Cod, the cold months are the best time to see Hooded Mergansers. They winter along our unfrozen coast, favoring brackish water, and spend the summers inland to the north and west, on wooded lakes, ponds and rivers.

They are famous for the big, white and black head crest that males display when trying to attract females. In his Essential Field Guide Companion, Pete Dunne says it “opens and closes like a Chinese fan.” The female also has a collapsible crest, which is reddish and not nearly as showy.

These birds are excellent at diving and can chase and catch fish with ease. They also eat just about anything else in the water, from crabs and insects to plants.

Hooded Mergansers used to be sort of rare, but their numbers have been improving. One reason for their resurgence is the large number of nesting boxes that have been set up, mostly to attract Wood Ducks. Hooded Mergansers, also cavity nesters, have been appropriating the Wood Duck boxes.

Of course, they will also use sizable holes in trees, and the reforestation of our once agricultural region may also be contributing to the population increases in the Northeast. Not surprisingly, the nesting trees must be near water.

In the spring, a few days after their eight or so offspring hatch, the babies must begin finding their own food. But first they have to get to water. If the nest hole is high in a tree, the parents will probably carry them one at a time down to the ground and nearby water. If the nest is low enough, the ducklings may be encouraged to jump – or tumble – down. The babies can swim, dive and feed themselves long before they are large enough to fly.

In a book called Our Amazing Birds, Robert S. Lemmon wrote in 1951 that “in all the bird world, there is no more charming sight than a pair of hoodeds, convoying their brood of eight or ten wee ducklings on the clear water of a forest lake, often with several of the little ones riding with evident enjoyment on their mother’s back.”

Wednesday, November 28, 2007

Queen of the forests

When our grandparents were children, the Queen of the Eastern Forests still reigned. The spreading chestnut, under which Longfellow's village smithy stood, rose more than 125 feet with a trunk 10 feet in diameter.

The American Chestnut was one of our most valued trees. Whole houses could be built from its fine, hard wood. Its fruit was a relished food – who hasn’t heard “chestnuts roasting on an open fire” and wondered what real chestnuts must have tasted like?

But around 1904, at a Japanese exhibit in New York, an Asiatic tree fungus escaped and during the next two decades wiped out the mighty chestnut from Maine to Mississippi.

Well, almost. The chestnut blight attacks only the above-ground parts of tree. Thousands of old chestnut roots still survive in the woods, sending up young trees that may rise 20 feet before being attacked and killed by the fungus. The trees are usually too young to produce nuts from which wholly new trees can grow. Thus, these ancient roots are hanging on for dear life, seemingly hoping for a miracle.

And a miracle may be at hand. Scientists are “backcross breeding” the American Chestnut with the Chinese Chestnut, which means they keep taking hybrids of the two and adding more American Chestnut genes by repeated crossbreeding to find the most blight-resistant strains. They hope to get a nearly pure American Chestnut that can withstand the blight and repopulate the eastern forests.

While there's little hope for the village smithy, “backcrossing” may one day return the spreading chestnut to its noble size and full numbers.

Wednesday, September 26, 2007

Nut birds

The season of nuts is upon us, and squirrels are once again being admired for being so industrious. Don't they gather up and bury all those acorns and other nuts? Aren't they responsible for planting forests full of oaks, hickories and beeches?

Not necessarily. Biologist M.R. Chettleburgh has found that during the single month of October, 30 to 40 jays can gather and plant more than 20,000 acorns alone. The jays are caching them for future use, but often forget their whereabouts, allowing the nuts to sprout.

On average, jays carry these acorns a quarter mile from the tree that bore them, but often they fly them a half to three-quarters of a mile away. No lazy, old squirrel is going to haul an acorn a half-mile.

Clearly, jays are the real planters and spreaders of our woodlands. In Siberia, in fact, they are protected by the state because of their forest-expanding abilities.

And maybe that's why Blue Jays are so noisy at this time of year, screeching and squawking seemingly from dawn to dusk: They're whining about all the credit the squirrels get for being hard-working.

Monday, June 25, 2007

Sound of the Veery

I heard a Veery on Sunday. That may not sound like a big deal, but it’s the first one I’ve heard locally in more than five years.

And hearing them is often all you do, for these brown thrushes are somewhat secretive and stick to woodlands where they can be hard to spot.

However, their song is one of the most distinctive and easy to recognize of any of our migrants. It’s a flutelike cascade of notes, seeming to echo as if they were sung through a long open pipe. Once you’ve heard the song, you never forget it.

Time was when the song of the Veery was a sure sign that spring had settled in. It was something to listen for. But Veeries are in what the Cornell Lab of Ornithology calls a “slow decline” throughout their range.

In winter, that range includes a large area of central and northern South America, much of it rain forest, which, as we all know by now, is being cut down. Ornithologists suspect that this “rapid habitat conversion” is reducing the Veery population.

Up north, these birds may also be suffering from the deer overpopulation. Veeries nest on or near the ground and thus prefer woods with dense understory that provides a degree of camouflage and protection. Overpopulating deer have stripped so much of the understory of our woods that Veeries may be having difficulty finding suitable nesting sites. (However, the latest statistics from the state of Connecticut indicate the state’s deer population may be in decline from a peak of 75,000 a few years ago to a current estimate of 62,000.)

Veeries have also suffered from nest parasitism by Brown-headed Cowbirds, but the latest studies on cowbirds are finding that these birds may also in decline. So it’s likely that the habitat destruction, in both winter and summer ranges, have been affecting the Veery numbers in our neighborhood.

Tuesday, April 24, 2007

Vernal Pools

In nature, little is wasted, not even puddles. At this time of year, nature’s puddles – officially known as “vernal pools” – are teeming with life.

Vernal pools form in the winter, last through the spring and dry up in summer. Found throughout our woodlands in sizes large and small, they are hotbeds of early spring activity. Frogs and salamanders crawl out of the forest’s leaf litter and make their way to the water to frolic and mate. Soon the pool is full of eggs, then tadpoles and salamander larvae.

To amphibians, the pool’s benefit is big: There are no fish to eat them or their offspring. The risk, however, is drought. The water must last long enough for the tads to reach adulthood. Clearly, the benefit outweighs the risk, for our woods still ring out each April with choruses of the popular vernal pool patron, Spring Peepers.

A bigger threat, however, is man. Too few know what vernal pools are, much less their importance, and no laws protect them. Many are threatened by development.

Dr. Seuss’s Lorax spoke for the trees. Fortunately, we have a few wise conservationists and savvy zoning commissioners who speak for the pools.

Thursday, March 22, 2007

Spring ephemerals

Ah, spring, the season of new and renewed life! It’s a time when many nature lovers turn their eyes skyward to spot migrating birds as signs of the season. Others, however, head for the woods and look to the ground. They seek the “spring ephemerals,” March and April wildflowers that pop up, bloom, fruit, and disappear before most of the trees have unfurled their leaves.

Ephemerals like bloodroot, trout-lily, trillium, anemone, and spring-beauty have to deal with wintry winds, frosty nights, even snow and ice. But there are benefits to their lifestyle. The ground is wet with snow melt and the trees have not yet begun to compete for the water. Plenty of nutrients from last year’s dead leaves have leached into the soil. And there’s much light because tree leaves have yet to shade the forest floor.

Unfortunately, overpopulating deer, ravenous after a long winter, find most ephemerals irresistible. And a plant eaten soon after it sprouts cannot make and store food in its roots so it can reappear next year, and cannot produce seeds for future generations.

Thus, in many woods, ephemerals have become invisibles.

Tuesday, February 06, 2007

Cool sweets

If you have a sweet tooth, the cold snap is a boon. At least two weeks of freezing nights are needed for our maples to produce a good flow of late-winter sap, the source of America’s oldest breakfast condiment.

The warmth of first month of winter was beginning to make the sap tappers nervous. And there are plenty of maple harvesters around: little Connecticut ranks 10th in the United States in its maple syrup production – some 11,000 gallons annually.

The American Indians were the first to recognize the treat offered by maple sap, boiled down to its syrupy or solid essences. But it is only recently that scientists have found that this sweetener is actually good for you. A single teaspoon contains nearly a quarter of your daily need of manganese and plus a good dose of zinc to boot. Both minerals are important ingredients in the body’s antioxidant defenses.

So our maples not only provide sweet treats, plus shade, oxygen, and terrific fall colors, they also contribute to our good health.

Thursday, April 27, 2006

Dead meat

Some of our simplest-looking wildflowers offer some of the most sophisticated tricks for survival. Take the Red Trillium, for instance.

A handsome plant found in our open woods, Red Trillium bears big, three-petaled purple flowers in spring. The flowers are pretty, but they don’t mean to be. In fact, they mimic dead meat. The petals wear the color of carrion and the flower itself reeks with an odor among the most foul in nature.

The fakery is the trillium’s way of drawing flies. Unlike the many bee-oriented flowers, trillium uses flies for pollination. These are the same flies that explore the recently thawed forest floor, feeding on the carcasses of creatures that died over the winter. To a fly, a trillium looks and smells just like another spring corpse.

Unfortunately for trillium, the burgeoning numbers of White-tailed Deer have significantly cut its numbers in many areas.

It takes more than bad breath to offend a hungry deer.

Tuesday, April 04, 2006

A pink potato

Some wildflowers, like hepatica, anemone, and trillium, wear fancy Greek or Latin names. Others, like cohosh and poke, bear colorful American Indian labels. However, often the prettiest and most appropriate names are simple American English.

Such is Spring-beauty, whose name tells its story. In early spring groves of these small, pink flowers welcome the winter-weary, who head for the woods in search of the season of new life. The flowers seem so delicate – and in a sense, are, since they will quickly wilt if picked. Yet they are able to withstand freezing nights and raw days.

The Indians’ interest in Spring-beauty was more practical than esthetic. They knew that down below, the plant’s little round corm offered food, sweet and a bit nutlike, and wearing a skin like a potato. Indeed, they have been called wild potatoes. But an even better name, so typical of wonderful old English-language folk names for wildflowers, is fairy-spuds.

Tuesday, February 14, 2006

Hard times for squirrels

It’s been a tough week for squirrels. The tree-loving rodents can’t handle a foot and a half of snow, and had to pretty much hunker down till a melt – or a crust – makes terrestrial travel safe.

Gray squirrels often have it tough. Back in 2004, the acorn crop crashed, and the squirrels had a hard time surviving last winter. Those that did were often weak and more susceptible to predators – including the automobile tire. They produced smaller families, and their population declined markedly.

The 2005 acorn crop was reportedly a bit better, and until now, the winter of 2005-06 has been mild, so nature may be giving the Gray Squirrel a break.

That may not please folks who battle “tree rats” at the bird feeder or in their attics, but a healthy squirrel population helps keep forests healthy by planting oaks, hickories and other nut-bearing trees. Squirrels also provide food for hawks and owls, and, when they don’t cross at the green, for vultures and crows.

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