As far as trees are concerned, root injury is the source of all evil. Well, most of it, anyway; chainsaws and forest fires aren’t so kind to trees, either. But regardless of the worrisome signs a tree may develop, whether early fall leaf color, tip dieback, slow growth, or even some diseases and insect infestations, the problem is below ground in the majority of cases. » Continue Reading.
Posts Tagged ‘science’
There are times when fish appear telepathic. Consider the uncanny way a school of bait fish moves as one to avoid a predator, or the way goldfish in their lighted bowl turn towards the glass when someone walks into a dark room.
Researchers often describe this ability as “touch-from-a-distance.” But fishy sixth sense is closer to hearing than touch. It’s what allows salmon to deftly ply the currents and eddies as they make their spawning runs upstream. They listen to the flow. » Continue Reading.
In spite of deep snow and frigid temps through early 2015, most maple producers in northern New York have been ready for sugaring season since early February, but they had to wait for the right weather to trigger sap flow.
Until this past week, sap runs in the region had for the most part been sporadic and brief, and producers at higher elevations where it is a bit colder have seen very little action until now. » Continue Reading.
Every winter I teach several tree identification classes to biology students. Cold or colder, it’s always outdoors, but if student evaluations are on the level, it’s always fun. Demonstrating how to tell one leaf-bereft hardwood from another is one thing.
Bark is not the best feature for identifying trees. Sure, white bark means birch, but some birches have black, yellow or reddish bark. Typical bark patterns, such as diamond-shaped furrows for ash, can be absent depending on site conditions and tree health. Cherry and ironwood bark have light-colored horizontal dashes called lenticels, but only on young wood. Not all hickories have shaggy bark. Bark may provide a clue, but it’s not to be trusted as a sole, or even a primary, source of information. » Continue Reading.
Two creations of Jefferson County’s Edward Shortt were very successful in the 1880s, but like most inventors, he was always thinking, always innovating. Commercial success was important for funding future projects, but his steam pump and award-winning duplex engine, along with the backing of wealthy men like Charles Emery, ensured Edward of a comfortable living standard.
In the early 1990s, as Shortt’s duplex engines began mass production, he delved into designing a better braking system for trains. Other than for financial profit, there were many reasons to do so. Frequent and horrible rail accidents involved great loss of life, particularly in collision situations. The inability to effectively slow and stop such large, moving vehicles often played a role in catastrophic crashes. » Continue Reading.
For the past 14 years, my Winter Ecology students and I have spent a lot of time outdoors, studying the preferred habitat features and winter foods of snowshoe hares. We’re likely to find hare tracks hopping in and around lowland conifers near wetland edges, and then again at higher elevations, where the forest transitions into fir, birch, and spruce. Where we won’t find them, at least not very often, is in broad bands of open, leafless hardwood. On the rare occasions that we find tracks in this habitat, they have almost always been single strands of widely spaced prints – suggesting an animal that’s really moving! » Continue Reading.
If you live in northern New England, those words can send a chill up your spine. They portend demolition derbies on the roads, power outages and the ominous cracking sound of limbs breaking and trees falling in woods, parks and urban streets.
Snow we’re up for. Ice, not so much. » Continue Reading.
The Department of Environmental Conservation (DEC) is revising its list of Species of Greatest Conservation Need (SGCN), which includes species that are at risk in New York. The list is now in it’s final draft form and DEC is seeking comments. » Continue Reading.
The state Department of Environmental Conservation released three spruce grouse last year and thirty this year, according to Angelena Ross, a biologist with the department.
The three birds released last year were adult females from Ontario. Only one survived the winter, and it was killed by a hawk in the spring.
In August, DEC released twelve adults and eighteen juveniles captured in Maine at three sites in the Adirondacks— two on private land, one in the Forest Preserve— near Tupper Lake and Paul Smiths. » Continue Reading.
We acknowledge this when we compare the giant sequoia groves to a cathedral. When we compile state lists of big old trees. When we give names like Methuselah to the longest-lived specimens.
Most trees are not destined to live long lives. Ninety percent of the trees in a forest will never become very big, or very old. Some will lose the race for sunlight and food. Others will succumb to insects, wind, fire, or logging. » Continue Reading.