Insect repellents containing picaridin can be lethal to salamanders. So reports a new study published in Biology Letters that investigated how exposure to two common insect repellents influenced the survival of aquatic salamander and mosquito larvae.
Insect repellents are a defense against mosquito bites and mosquito-borne diseases like dengue, chikungunya, Zika, and West Nile virus. Salamanders provide natural mosquito control. During their aquatic juvenile phase, they forage on mosquito larvae, keeping populations of these nuisance insects in check. » Continue Reading.
Every autumn, when the air tastes of apples and leaves crunch underfoot, my thoughts turn to tiny owls – northern saw-whet owls (Aegolius acadicus) to be exact. Just eight inches in length with a round head and bright yellow eyes, the saw-whet is arguably New England’s most endearing owl. Deer mice, I suspect, would beg to differ.
Saw-whets are small, secretive, nocturnal, and very often silent. As a result, until relatively recently, their migration patterns were poorly understood. Project Owlnet, a network of researchers spanning much of North America with a particular concentration in the northeastern U.S., is changing that. » Continue Reading.
When the topic of animal intelligence comes up, we might argue whether a crow or a parrot is the more clever, or if dolphins are smarter than manatees. Seldom do we ascribe smarts to life-forms such as insects, plants or fungi. And it is rare indeed that we question our intellectual primacy among animals. It is true that no other species can point to monumental achievements such as the Colosseum, acid rain, nerve gas and atomic bombs. But that does not mean other species are bird-brained. Metaphorically speaking.
It makes sense that elephants and whales are whiz-kids, given the size of their heads. Depending on species, whale brains weigh between 12 and 18 pounds (5.4-8 kg.), and Dumbo’s cranium would tip the scale at around 11 lbs. (5.1 kg.). Compared to them, our 3-pound (1.3 kg.) brains are small potatoes. What sets mammal brains apart from other classes of animal is the neocortex, the outermost region of the brain responsible for higher functions such as language and abstract thinking. » Continue Reading.
Regular Adirondack Almanack contributor Paul Hetzler is the author of a new book of nature essays, Shady Characters: Plant Vampires, Caterpillar Soup, Leprechaun Trees and Other Hilarities of the Natural World (Lexingford Publishing, 2018).
Paul Hetzler knows all about nature in all its wonders, complexities, and hilarities, and weaves considerable wit with a range of wisdom. » Continue Reading.
My francophone wife is often amused as I commence à apprendre la langue, like the time I said connard when I meant canard. For the monolingual English-speakers out there, canard means duck, while the rough equivalent of connard is a word that rhymes with “spithead,” and that you don’t want your kids to say. But where mallards and other puddle-ducks are concerned, the two are related. The drake (male) can be an absolute connard sometimes.
The Darwinian principle “survival of the fittest” is not always about who wins the antler fight or arm-wresting contest. Fitness means being well-suited to one’s environment so as to live long enough to reproduce and thus pass on one’s DNA. Above all else, it means being adaptable. » Continue Reading.
When my kids were toddlers, they discovered, quite happily, a toad in a damp corner of their sandbox, tucked into the shade beneath the small, triangular piece of wood that served as a seat. The toad seemed to spend most days there, probably waiting until dark to emerge and hunt bugs and slugs.
Thankfully, back then, we had a more mature dog who was wise in the ways of the world – not the goofy pup we have now, who I’m sure will learn the hard way not to eat toads. Many a clueless canine has clamped its mouth around an American toad – the species found most commonly in our region – only to be introduced to bufotoxins, a toad’s best defense against being eaten. » Continue Reading.
On a walk in the woods in early fall, you may see a cluster of waxy, white stems with tiny, scale-like leaves rising out of the leaf litter or pine needles. At the end of each translucent stem is an odd, bell-shaped flower. This is Indian pipe, named for its resemblance to the clay pipes once smoked by Native Americans and early settlers.
Indian pipe, also known as corpse plant and ghost flower, has an unusual strategy for survival. It lacks the green pigment chlorophyll, and therefore cannot make its own food through photosynthesis as most plants do. Indian pipe and its relatives were formerly believed to live off decaying organic matter and were called saprophytes. However, more recent research has revealed that the plant is a parasite, sucking up nutrients from mycorrhizal fungi in the soil. Trees and mycorrhizal fungi have a symbiotic relationship: the fungi absorb nutrients from the trees; the trees benefit by increasing the surface area of their root systems, allowing them to drink in more water and minerals. Indian pipe interjects itself into this relationship, absorbing nutrients from the mycorrhizal fungi but giving nothing back. » Continue Reading.
A total lunar eclipse is likely more common than the swift removal of a novel invasive plant infestation, but fingers are crossed that such a thing happened in St. Lawrence County this summer. The plant eradication, I mean — we all know about the celestial event this past July, the first central lunar eclipse since June 2011. Thanks to the sharp eyes of Dr. Tony Beane, a Professor of Veterinary Science at SUNY Canton who is also an avid naturalist, an exotic vine capable of smothering fields and forests has been eliminated within weeks of its confirmation in the Ogdensburg area. » Continue Reading.
Motorists should be alert for moose on roadways in the Adirondacks and surrounding areas at this time of year during peak moose activity, advises the New York State Department of Environmental Conservation (DEC).
Early fall is the breeding season for moose in northern New York. During this time moose are wandering looking for mates, leading them to areas where they are not typically seen. While this improves the opportunities for people to enjoy sighting of a moose, it also increases the danger of colliding with one on the roadway. » Continue Reading.
The loon is such an iconic symbol of wilderness with its haunting call, red eyes, and distinctive markings. With all wildlife, we need to understand how to respect its boundaries while admiring it in its natural habitat. Thanks to the Adirondack Loon Center for Loon Conservation, there is a place to learn more about this aquatic bird.
The annual Adirondack Loon Celebration takes place at the Paul Smith’s VIC, October 7 from 1 to 5 pm, with a schedule of activities emphasizing the importance of loons to the Adirondack ecosystem. Live music with Celia Evans, Green Goddess food, silent auction, children’s activities, and other loon related activities are just part of the fun-filled day. » Continue Reading.
Planting a tree isn’t rocket science, which is good thing. If it were that complex, I’d wager we’d have a lot fewer trees lining our streets. It may not take a scientist to plant a tree correctly, but a lot of money is spent each year to buy and plant trees which may as well be leased, because they will only live a fraction of their expected lifespan.
When trees decline and die after 15, 20, or even 30 years, the last thing we probably suspect is shoddy planting. Although landscape trees like mountain-ash and birch have naturally short lives, a sugar maple or red oak should easily last a hundred or more years. Yet all too often, a long-lived species will expire at twenty because it was planted “fast and dirty.” You can find examples of trees declining as an age-class in housing developments, and especially along NYS routes where DOT low-bid contractors replaced trees cut down for road improvements. One may as well consider such trees rentals, not purchases. » Continue Reading.
As a boy, I was exploring the loft of my grandmother’s barn when I disturbed a bumblebee nest among the moldering hay bales. In my memory, I leap stuntman-like from the haymow and hit the ground 10 feet below running flat out, rounding the corner of the barn then glancing back to see if anyone is in pursuit. There is an angry bumbler coming up fast. I vault the rusty ornamental fence and am steps from the screen door and safety when … I get nailed in the neck. Ow!
When we lived in Louisiana, I scalped a fire-ant nest while mowing the lawn and got stung a few hundred times as the ants swarmed up my legs. Vivid memory. I’ve been stung by several varieties of wasps and, as a beekeeper, I periodically get stung by my honey bees. Yes, it still hurts. » Continue Reading.
Researchers have confirmed the presence of fishhook waterflea (Cercopagis pengoi) in Lake Champlain, bringing the known number of nonnative and aquatic invasive species in Lake Champlain to 51.
The discovery increases the likelihood of the invasive’s spread by recreationists into the Adirondack Park, which currently has at least 12 known aquatic invasive species in interior lakes where spiny waterflea has been spreading.
The fishhook waterflea is similar to the spiny waterflea, which was confirmed in Lake Champlain in 2014; they are both small crustaceans that are aggressive predators of zooplankton and are known to foul fishing lines. The Finger Lakes and Lake Ontario were the closest lakes known to host fishhook waterflea. Like the spiny waterflea, the fishhook waterflea likely arrived in Lake Champlain by hitchhiking over land on recreational boats, trailers, or equipment. » Continue Reading.
New York State Department of Environmental Conservation (DEC) has announced that an innovative project that is relocating freshwater mussels in the Grasse River during an ongoing river remediation project is showing early signs of success and reporting a 98 percent survival rate.
As part of an U.S. Environmental Protection Agency (EPA)-led cleanup project to remove polychlorinated biphenyls (PCBs) from river sediments, a seven-mile stretch of the lower Grasse River in northern New York in being dredged and capped starting next year. Before dredging begins, DEC is collecting mussels from the river bottom and temporarily placing them in areas that won’t be subject to capping or dredging. The New York State Museum, St. Regis Mohawk Tribe, and SUNY Cobleskill are collaborating with DEC on the project. » Continue Reading.
“What’s this shiny black beetle with four eyes?” asked Erin Hayes-Pontius, a visiting UVM student, from her microscope. Without glancing up from my own scope I answered, “that’s a whirligig beetle.” Erin’s answer came back: “err, cute … but what’s it really called?”
I will grant you that the name whirligig is a bit odd – particularly when applied to an inert pickled beetle – but there are excellent reasons it. In life, whirligig beetles weave and whirl on pond and river surfaces amongst dozens of their peers. They move like miniature motor boats that appear to lack rudder function. There’s method to this seeming madness. The mesmerizing movement confuses predators, who find it difficult to focus on any one individual. Ecologists call this phenomenon predator dilution. It’s like the old joke about the two friends and the tiger: “I don’t need to outrun the tiger, I just need to outrun you!” » Continue Reading.
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