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Spotted Salamanders Adapt to Salt and other Roadside Toxins

Spotted SalamanderEarly spring is a favorite time for amphibian enthusiasts. Here in the northeastern USA, a spectacular event is unfolding, as Wood Frogs, Tiger and Spotted Salamanders, Spring Peepers and others head en masse for their breeding ponds. I’ve been visiting one pond, first shown to me by herpetologist John Behler, for nearly 30 years.  When luck is with me, I can see 3 amphibian species, along with fairy shrimp and other interesting creatures, in a single evening (please see article below).

The small vernal (temporary) pools used by many amphibians are fragile habitats, and quickly spoiled by pollutants; that many are near roads worsens the situation.  With their highly-permeable skins, amphibians are especially sensitive to changes in water quality.  The recent finding that Spotted Salamanders (Ambystoma maculatum) may be evolving defenses against roadside toxins is a rare light at the end of the rather dismal “amphibian conservation” tunnel. Read More »

Skinks, Sea Snakes and Caecilians – Surprising New Species Discovered

Pygmy Spiny tailed SkinkNew reptiles and amphibians turn up regularly, but, being generally small and inconspicuous, most excite only hard-core herp enthusiasts.  In recent days, however, a string of good-sized, colorful and totally unexpected discoveries have drawn attention from even “regular” people.  The new species include a spiny, brick-red skink, a sea snake with uniquely-raised scales, and a new family of hard-headed caecilians, those oddest of amphibians.

Western Pilbara Spiny-Tailed Skink (Ergenia cygnitos)

The beautiful, deep-red color of this spine-covered skink closely matches the rocks of its desert habitat in Western Australia’s Pilbara region.  You can see its photo and learn more in the article linked below.

Over the past 12 months, 9 other new species – 7 reptiles and 2 frogs – have been found in the same area.  Several related skinks (please see photo) and a “barking” gecko are included among the newly-described creatures.  Mining proposals spurred the surveys in Pilbara.  Hopefully, the discovery so many previously unknown species will limit commercial activities until further studies have been completed. Read More »

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