Mosquitoes Becoming Immune To DEET, Study Suggests


According to a new study, mosquitoes are learning to ignore DEET, the BBC reports.

Researchers at the London School of Hygiene and Tropical Medicine tested the responses to DEET by the Aedes aegypti, a type of mosquito that can carry yellow fever and dengue fever and is thus particularly dangerous to adventure travelers.

In a new study published in the journal PLOS ONE, researchers say that while mosquitoes are at first repelled by DEET’s smell, they soon become accustomed to it and can return bite the wearer. Electrodes attached to the insects’ antennae show that they adjust to the scent of DEET and simply stop smelling it.

This is something I’ve heard campers and hikers comment on for quite some time now. Spending time in mosquito-ridden Missouri, I’ve noticed this trend myself. Missouri has about 55 known types of mosquito, including the Aedes aegypti.

An earlier study has raised questions about DEET being a neurotoxin. It looks like science’s next task is to find a better insect repellent.

I’ve also noticed that mosquito coils, which do not have DEET as an active ingredient, no longer seem to work on Missouri mosquitoes either. I enjoy sitting on the porch swing of my friend’s house reading. It used to be that a burning coil set nearby would keep the bugs away. No more. The last time I tried it the little bastards were attacking me so much I actually put the coil under the porch swing so the smoke rose right onto me. The mosquitoes didn’t seem to care. I soon retreated inside.

[Photo of Aedes aegypti courtesy US Department of Agriculture]

Gadling Gear Review: Bergan’s Osen Down and Wool Jacket

Sometimes, when I look at the price tag on a piece of gear, I think, “Really? It’s made in some factory in Asia, there’s not that much material to it, and really? REALLY?” Other times, I’m lucky to get to try out something super nice and my reaction is different. It’s more along the lines of, “Yeah, it’s expensive and I totally get why. And I really don’t want to send it back now that I’ve seen it.”

Bergan’s of Norway’s Osen jacket fits that category. The wool and down, water resistant jacket (available in both a men’s and a women’s cut) is one of the nicest things to pass through my hands for some time.

This isn’t your typical “poof” layer – it’s a combination of a wool and polyester blend on the sleeves, shoulders and waist with a down torso and collar. It looks great – the women’s cut makes sense; it’s got a bit of shape to it and the bright, contrasting zipper pulls are in a cool neon green on the jacket’s dark blue. Add a rain shell to this and you are set for just about any weather.
Everything about the way this jacket is made speaks of attention to detail. The collar is lined with microfleece so it’s not itchy or cold on your chin when it’s zipped up all the way. The pockets are big and they zip the right way (you’d be surprised how often this is not the case). The finish work is immaculate; the seams are all folded over and sealed and there are no loose edges or threads. And the sizing is right – something that’s increasingly rare in women’s outdoor gear.

The jacket was missing two things I’ve come to appreciate in this kind of gear – pit zips and a two way front zipper – but it’s still nicer than many a jacket that’s been in my test queue.

The wool/poly mix is a nice alternative to the usual slippery nylon shell you get with your typical down jacket. It gives the jacket some alpine formal style. I wore the Osen jacket out and about a few times and always got compliments on it.

The Osen jacket will set you back $329. The line doesn’t seem to have wide distribution in the U.S. yet, but check with your local mountaineering store or use the Bergan’s “Find a Dealer” link provided on the site.

[Image courtesy of Bergan’s of Norway]

Want A National Park All To Yourself? Visit Canyonlands National Park In Winter

It was 12 degrees as we stood before the Mesa Arch in Utah’s Canyonlands National Park early on a Monday morning in January waiting for the sun to rise. But we weren’t complaining because we knew that we had this wild and magnificent place almost all to ourselves.

Photographers have gathered at the Mesa Arch to photograph the early morning light that unfolds into the vast, majestic canyonlands below since the previously obscure area became a national park in 1964. But on this day – the first workday after the New Year – there were but two photographers, Bryan from Denver and Ryan from Cortez, Colorado, and their companions trying their luck.
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We compared notes on our morning drives and hikes and realized that the five of us may have represented the entire human population of the 527-square-mile park at that moment. If you want to commune with nature but hate visiting our national parks out west when the roads and hiking paths are clogged with visitors, go now, in the dead of winter, when you’ll feel like you have some of our greatest natural treasures all to yourself. On a recent five-day road trip, I enjoyed blissful quiet at all three national parks I visited: Mesa Verde, Canyonlands and Arches.


Bryan had tried to photograph the Mesa Arch at sunrise last May but arrived too late and couldn’t get near the vista.

“We got there an hour before sunrise, but it was already too late,” he lamented. “There was a row of about 35 photographers here, all with their tripods spread out, and I couldn’t even get near the arch.”

We had no such problem on this morning but we did have to contend with the cold. As we waited for the sun to rise, Julia and Ryan regaled us with stories about her four years working in the ER of a hospital on an Apache Indian Reservation in Arizona.

“They don’t shoot each other,” Ryan said, when I asked if Julia treated a lot of gunshot wounds. “The Apache are still warriors. Shooting people is considered kind of wimpy. They’d be more likely to attack someone with knives, baseball bats, two-by-fours, you name it.”

It was an overcast morning and by 7:40 the sun was two minutes late rising and we started to fret. But a few minutes later, the sun peaked through and gradually blanketed the canyonlands below in a lovely, golden light. We could see for miles and the landscape of colorful canyons, mesas, and buttes was peculiar, wild and unlike anything I’d ever seen before.



The official Canyonlands map boasts that “Canyonlands is wild America” and that is not an exaggeration. Canyonlands is big enough that you can find places to escape the crowds even in the peak season, but in the dead of winter the whole place is blissfully empty. (It gets about half the number of visitors as nearby Arches NP.) The park has five distinct sections and I had time to visit just two, the Island in the Sky and Needles districts, which are both an easy day trip from Moab.




Island in the Sky is often referred to as the park’s observation tower because it provides a view of the canyons with the backdrop of three mountain ranges – the La Sals, the Abajos and the Henrys. I took hikes around Mesa Arch and near the Grand View point overlook and barely scratched the surface of what’s possible in this area.

Needles is a longer drive from Moab, but it’s worth the trek to see the massive sandstone spires that give the place its name. On the way there or back, be sure to visit Newspaper Rock, a remarkable collection of petroglyphs that were carved by Native American peoples between about 700 B.C. and 1300 A.D.




If you want to go way off the beaten track in this area, check out the view at the end of the Needles Overlook road, and on the way back stop off at Rockland Ranch, a unique community of modern day cliff dwellers, some of them polygamists, that is a few miles down a dirt road that forks off the Needles Overlook road.

And while you’re in the Island in the Sky vicinity, definitely check out Dead Horse Point State Park, which has amazing panoramas some 2,000 feet above the Colorado River.

On my last hike in Canyonlands, I sat on a rock and looked out at the Wooden Shoe arch and realized what I loved most about this place: the absolute silence. I live in Chicago, where it’s nearly impossible to find a truly silent place with no chatter, no cars zooming by, nothing. But this place, this place is so blissfully silent that you really do feel at one with nature.




A few caveats about visiting Canyonlands NP in the winter. Daytime high temperatures are typically in the 30s and 40s and you should be prepared for snow. Bring your own water and food – even the vending machines are shut down for the winter at Needles. The roads can be a bit snowy and icy (they were pretty clear when I was there in early January) but there are so few cars that you can drive at your own pace, and stop in the middle of the road to take photos whenever you want. And be extra careful if you’re hiking because no one is going to find you if you get lost in the winter.

I asked Kati Thomas, a park ranger at Canyonlands, if she thought I was on safe ground recommending Canyonlands in the winter and she didn’t hesitate.

“People should be prepared for snow, but it’s pretty unusual for us to have to close the roads for more than a few hours,” she said. “I think winter is a great, great time to be here.”




[Photo/video credits: Dave Seminara]

A Unique Adventure Destination: Siberia’s Altai Mountains

If you’re looking for a colorful and unique adventure vacation, look no further than Siberia’s Altai region. In the Turkic and Mongolic languages, the word Altai means the “Golden Mountain.” Once you see the area up close, you’ll understand why the name is so fitting.

Along with its rare beauty, the destination also presents unique ecology and geology. Located in East-Central Asia, the Altai Mountains are a mountain range where Kazakhstan, Mongolia, China and Russia come together. The natural attraction extends for about 1,200 miles from the Gobi Desert to the West Siberian Plain, and is a UNESCO World Heritage Site, due to the area’s unique geology and rare biodiversity. In fact, this region features the most complete sequence of altitudinal vegetation zones in central Siberia and offers a home to endangered animals like the snow leopard. You’ll find over 1,400 plant species, many of which an endemic, over 70 mammal species and more than 300 types of birds. Moreover, with origins dating back to Caledonian-Hercyninan times, this range has seen five glacial periods, which can be seen through the multitude of lakes and 1,499 glaciers in the region.

When visiting this region, you’ll be able to take in the beauty of this untamed land while white water rafting, horseback riding, hiking and mountain climbing. Moreover, if you’d just like to relax and clear your head, that can be found here, too. Visitors can choose to go camping or stay in one of these rustic accommodations, and also have the option to book a tour.

For a visual idea of this unusual destination, check out the gallery below.

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[all images via Big Stock]

Exploring The Beauty Of Acadia National Park

The United States is home to many beautiful national parks worth exploring. One of these is Maine‘s Acadia National Park, the first national park to have been established east of the Mississippi River. Rugged coastline, granite peaks, historic hiking trails, myriad plant and animal species and Cadillac Mountain, the tallest mountain on the United States’ North Atlantic Coast at 1,532 feet, all help to bring two million visitors to the park each year.

Along with Cadillac Mountain, there are many worthwhile sights to check out at Acadia. First there is the scenic 45-mile carriage road system, which can be explored via a bike or horse-drawn carriage tour. Additionally, the historic Bass Harbor Head Lighthouse, built in 1858 out of brick, stands tall and proud 56 feet above the water. Jordan Pond, Hunter’s Beach, Sand beach, Otter Cliff and Mill Cove are just some of the other must-see features of the park.

To see the allure of Acadia National Park for yourself, check out the gallery below.

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[Images via Big Stock]