Reptile & Amphibian News Blog
Keep up with news and features of interest to the reptile and amphibian community on the kingsnake.com blog. We cover breaking stories from the mainstream and scientific media, user-submitted photos and videos, and feature articles and photos by Jeff Barringer, Richard Bartlett, and other herpetologists and herpetoculturists.
Monday, October 31 2011
You can add pit vipers to the list of species that can reproduce without a male being involved.
From Live Science:
In 2009, this copperhead gave birth to a litter of four offspring that were outwardly normal in appearance, two of which were alive at birth. Analysis of DNA from the mother, one live offspring and one of the stillborn progeny revealed no signs of genes from a father, suggesting a true virgin birth.
"With the availability of DNA fingerprinting technologies, we are now becoming aware that the process of parthenogenesis is in fact more common than we ever imagined," Booth told LiveScience.
Parthenogenesis may have evolved in these snakes as a mechanism to battle a lack of suitable mates.
"Instead of wasting eggs, which are costly to produce and a finite resource, parthenogenesis may represent an alternate means of reproduction to overcome this," Booth said. In light of the loss of habitat these snakes face, virgin births might allow this species to hold on a little longer, he added.
So, ladies, we just need to figure that out totally on the human end of the things and it saves a lot of painful nights out at the bar.
Friday, October 28 2011
Tired of snakes and herpers getting bad press? The Tinley Park Patch bucked that trend with its coverage of the recent North American Reptile Breeders Conference:
Animals ranged in price from $25 to $20,000, Ashley said. Asked what they loved about reptiles, attendees gave a range of answers including, "they're beautiful," "they get a bad rap," and "they're a lot more affectionate than people think."
Some even compared them to dogs or cats.
"If you want them to be affectionate, you have to take them out and 'walk them,' if you will," Browning said. "If you handle a snake, or other reptile, a couple of times a day, it's going to be friendly."
He suggested a bearded dragon as a pet for first-time reptile owners.
"They're so relaxed and they're affectionate," he said. "Mine is one of my favorite pets. He will just hang out on my shoulder for hours."
Robin Johnson came all the way from Augusta, Ga., to check out the conference. She didn't bat an eye while holding a vertical tree branch filled with several snakes—a ball python, an Amazon tree boa and a spotted python, to name a few—near the center's entrance.
"Snakes are calming, very loving and very misunderstood," she said. "People really need to give them a chance. They're remarkably beautiful."
To read the full article, click here. The NARBC in Tinley Park broke records for both attendance and fundraising in the auction. Keep your eyes peeled, because kingsnake will be at the Legal Summit in March at Tinley again.
As if the Deepwater Horizon spill wasn't enough of a threat to sea turtles, conservation groups are now suing over deaths to the animals caused by fishing nets.
The fisheries Service has linked these “strandings” to drowning in shrimp fishing nets. Despite this rise in sea turtle strandings and the devastating impacts of the 2010 Deepwater Horizon oil disaster, the conservation groups say the agency has not fulfilled its duty to protect the imperiled animals from harm.
Recent federal reports show the number of drownings in the Gulf alone likely exceeds the allowable take for the Gulf and Atlantic shrimp fisheries combined, and also indicate significant noncompliance with existing regulations. The lawsuit aims to force the fisheries service to complete the required studies and adopt interim measures to protect turtles.
“Sea turtles in the Gulf of Mexico are still reeling from the impacts of last year’s oil spill, and they simply can’t withstand the chronic threat of drowning in shrimp nets,” said Jacyln Lopez, an attorney at the Center for Biological Diversity. “The government’s own data show that record numbers of sea turtles have perished in the Gulf of Mexico this year, yet the Fisheries Service has not taken protective measures to prevent sea turtles from dying in the shrimp-trawl fishery.”
Shrimp trawling has for many decades been the primary threat to sea turtle survival in the U.S., and turtles in the Gulf of Mexico may be more vulnerable now to drowning in shrimp nets as a result of the BP spill and cleanup efforts. The shrimp trawl fishery incidentally captures and kills thousands of threatened and endangered sea turtles each year. “Turtle excluder devices” can help prevent turtles from drowning in the nets, but not all shrimpers are required to use them and still others simply don’t comply with existing regulations.
To read the full article, click here.
Wednesday, October 26 2011
Warm fuzzy animals might get most of the attention when it comes to conservation, but that isn't stopping the folks at the Memphis Zoo from efforts to save salamanders, an important species in detecting overall ecosystem health.
"It's really horrible that we're in a situation where hundreds of animals are disappearing," said Kouba, director of conservation and research at the Memphis Zoo. "If the same situation had happened with mammals, the outcry would be tremendous. But we aren't receiving the same attention to the dramatic loss of these amphibians."
The Memphis Zoo has received a $300,000 grant from the Institute of Museum and Library Services to fund conservation research and study reproductive techniques for salamanders.
It's in some ways the second phase of a $120,000 IMLS grant that has helped the zoo become a leader in frog and toad reproduction, Kouba said.
The zoo is working with other institutions, including Henry Doorly Zoo in Omaha, the Cincinnati Zoo & Botanical Gardens and U.S. Fish and Wildlife Service.
Its main partner is Mississippi State University, Kouba said.
To read the full article, click here.
Continue reading "Memphis Zoo works to save salamaders"
Tuesday, October 25 2011
In a program funded by the Canadian Ministry of Natural Resources, Reptiles at Risk reaches out and teaches school children about conservation efforts.
The Reptiles at Risk: On the Road program is an exciting, hands-on program featuring live reptiles.
Did you know that snakes and turtles are at risk in Ontario? Immaculate principal, Louisa Bianchin, said she was excited for the students to experience these reptiles.
“This program teaches students the importance of protecting these reptiles so that they exist for future generations,” Bianchin stated in a press release. “Many snakes in our geographical area are harmless and should not be persecuted, and turtles that often cross busy roads need to be saved and avoided by drivers. This program encourages all of our students to recognize the importance of all living creatures.”
Students were so excited to handle corn snakes, rat snakes and garter snakes which were brought into the school, Bianchin said in the press release. Those who wanted to handle a snake were given this “awesome” experience and learned that it is their responsibility as the future generation to protect all reptiles so that they do not become endangered species.
Kudos to the Canadian government for recognizing this is a valid educational tool. To read the full article, click here.
Monday, October 24 2011
India is the land of a million snake bites, and far too often death results from inability to receive treatment fast enough. That may be changing.
In order to reduce the number of deaths caused by snakebites due to late administration or unavailability of anti-snake venom, a state-owned drugs company, Haffkine Bio-Pharmaceuticals Corporation Limited, has devised a 'medicines for snake bite' box, equipped with bottles of anti-snake venom and other simple, use-friendly paraphernalia that can save a bite victim.
[....]
"Every year, we see at least 500 cases of snakebites in the state of which 60 per cent result in death due to late administration of antivenom.
There have been instances wherein a snakebite victim has been rushed to a primary health centre, but they do not have anti-snake venom stored. Delay in treatment and loss of crucial time can results in death," said, Bharat Joshi, director, Sarpadarshan of India, a non-profit organisation.
To read the full article, click here.
Sunday, October 23 2011
In the wake of the awful tragedy that left dozens of exotics dead, their carcasses piled in the mud by authorities like so many trash bags on the side of the road, awful law proposals against the owners of "exotic" pets have begun.
First out of the gate in Ohio is House Bill No. 352, an emergency exotic law that appears to prevent ownership of most, if not all, pet snakes -- even the lowly pet corn snake.
A wide and sweeping proposal that so lacks details and definition that it essentially encompasses virtually any pet snake, HB 352 outlaws the possession of "A constricting snake."
Since the proposal fails to define what a "constricting snake" is, and since the overwhelming majority of snakes considered non-venomous are known to subdue their prey by "constriction," virtually every pet snake kept in the State of Ohio, which is likely to be in the hundreds of thousands if not millions, would be considered illegal under the ban.
Current Ohio residents who own a "constricting snake" would have 60 days to register if they met the state's criteria. The proposal is unclear as to what happens to people and their animals if they do not meet the state's registration criteria.
I would encourage all residents of Ohio to contact their elected representatives and ask them to clarify the proposal, specifically detailing the animals they intend to restrict, so that their laws allow people to keep their pet corn snakes and other "non-dangerous" snakes, and focus on the truly dangerous animals they really intend to restrict. And for pet owners in other states, be on the look out for more poorly-written laws headed your way, too.
To read the bill in its entirety please look at http://www.legislature.state.oh.us/BillText129/129_HB_352_I_N.html.
(Note. Originally this article referenced Garter Snakes as it's example and it was pointed out to me by a noted wildlife artist that Garter Snakes are not considered "true constrictors" so rather than argue semantics and field observations, the article has been changed to use the ubiquitous Corn Snake, perhaps the most commonly pet snake, equally non-dangerous, and without doubt a "true constrictor". Thank you John for keeping me honest. If I am asking them to be specific I need to be equally specific. And thanks to EricWi for bringing this legislation to my attention.)
Wednesday, October 19 2011
Apparently Khloe and Kourtney needed something to stir up news when they were filming one of their reality shows in New York recently, so they bought a "giant" snake.
Two questions: Why is this big enough news to generate several reports on my news searches, and why exactly are these girls famous?
"EW! [It's] not mine," Khloe, 27, told an observer, indicating that Kourtney, 32, would be taking care of the reptile.
Sources tell Us Weekly the sisters brought the snake back to the Gansevoort Hotel, where the bellhop took it out of the car, placed it on a cart and carried it to their room.
According to a witness, the snake "looked pretty big and vicious" and was "snapping at the glass!"
Just what the reptile community needs: Empty-headed owners using their snakes as a lifestyle accessory.
For most herpers, Australia represents a glorious place of wide biodiversity and well loved species of reptiles. Now they have two more to add to that list.
Two amazing new species of boulder-dwelling frogs have been discovered by researchers exploring remote areas of Cape York Peninsula in North East Australia.
Both frogs have now been named. The first is the called Kutini boulder frog (Cophixalus kulakula). The species name kulakula translates as ‘rocky place', and is a traditional name for the area where the species was discovered.
The species name of the second frog, the golden-capped boulder frog (Cophixalus pakayakulangun, translates as ‘belonging among the boulders'.
Both names are derived from the local Kuuku Ya'u language and were formulated in consultation with indigenous custodians of the lands on which the frogs were discovered.
The frogs are interesting in that they are restricted to piles of massive boulders ‘hidden' in the rainforest. They are adapted to their rocky world in having long arms, long slender fingers and big triangular finger pads. These features enable them to climb among the labyrinth of rocks in which they live.
To read the full article, click here.
Photo of the The newly discovered golden-capped boulder frog.
Authorities near Zanesville, Ohio, have shot and killed 30 of the estimated 48 exotic animals, including lions, bears, camels, and cheetahs, known to have escaped from an Ohio animal sanctuary after the owner's death yesterday. Authorities have yet to release information into the owners cause of death, though they have said it was not "suspicious."
The Humane Society of the United States has already jumped into the fray, urging Ohio to immediately issue emergency restrictions on the sale and possession of "dangerous wild animals."
"How many incidents must we catalogue before the state takes action to crack down on private ownership of dangerous exotic animals," Humane Society Wayne Pacelle said in a statement.
Reptile owners and keepers in Ohio should look for even more regulatory efforts in the coming days, weeks, and months as this will exacerbate an already problematic situation for Ohio exotic pet and reptile hobbyists. For all the latest updates on this developing story check out Google News.
Monday, October 17 2011
Over the weekend kingsnake.com launched the first of several planned "Breed Specific" breeder directories, with the initial directory for Ball Python breeders that are currently listed in kingsnake.com's master Reptile & Amphibian Business Directory. Current Reptile & Amphibian Business Directory account holders are listed at no extra charge as the system is based on that directory. The first of a number of planned directories based on the master directory, it is important that Business Directory account holders update their account settings to make sure that the proper search terms, in this case Ball Python, are included in their account listings "Description" or "Key Words" fields to make sure that their listing appears in this and the other directories yet to be launched.
Another important reason for Reptile & Amphibian Business Directory account holders to update their listings is the addition of Facebook, Twitter and Youtube links in your kingsnake.com listing. Make sure you have your social network links appear next to your business listing by updating your account today at http://www.pethobbyist.com/myaccount/bus_dir.php.
If you do not have a Storefront/Business directory account for your business and would like to be in our directories, the cost is for listing is $150.00 and it can be purchased online at http://www.kingsnake.com/breeder.html under the "list a business" tab.
You may have noticed some other new things in the ball python classifieds this weekend as well. Part of the Ball Python Breeder Directory and now part of the classifieds are two new features similar to our Featured Business Listing.
The Featured Ball Python Breeder listing is an extended and enhanced mixed media text/graphics listing that appears not only in the Ball Python Breeders Directory but listings also appear one at a time in the new tabbed Ball Python classified interface. This listing, appearing as part of the Ball Python classifieds, was displayed over 55,000 times just on Saturday and with the launch of the Breeder Directory will only get busier. Listings currently costing a flat rate of $50.00 for 6 months or $100 for 12 months. To purchase a Featured Ball Python Breeder listing please go to http://www.kingsnake.com/featuredbreeder.html We already have a few early adopters so check out their listings.
Similar to our Ball Python Breeder Listing, the Featured Ball Python Products listing is an extended and enhanced mixed media text/graphics listing that allows publishers, dry good and supply manufacturers that have breed specific products to reach our ball python classified audience. The listing appears in the Ball Python Breeders Directory as well as appearing
one at a time in the new tabbed Ball Python classified interface also. Listings currently costing a flat rate of $50.00 for 6 months or $100 for 12 months. To purchase a Featured Ball Python Products listing please go to http://www.kingsnake.com/featuredproduct.html
Both of these listings, appearing as part of the tabbed Ball Python classifieds, were displayed over 55,000 times each just on Saturday and with the launch of the Breeder Directory will only get busier.
So...
Which breeder directory to do next. Carpet Pythons? Hognose Snakes? Crested Geckos? You tell us!
Saturday, October 15 2011
Once the 65-million year old turtle was unearthed, the real challenge began.
The fossil is the shell of a big sea turtle called Taphrosphys sulcatus, which broke into hundreds of pieces during the eons that it lay buried in what is now near Sewell, Gloucester County.
Many of the fragments are smaller than a fingernail. There is no cardboard box with a helpful photo to show what the completed "puzzle" should look like.
And yet, little by little, the graceful curvature of an ancient reptile is emerging, as doctoral students Elena Schroeter, 27, and Paul Ullmann, 25, match up jagged edges and glue them together.
"It's a job for young eyes," said their supervisor, Kenneth Lacovara, an associate professor of biology at Drexel.
The finished product will be a nice display piece, perhaps at Drexel or its new affiliate, the Academy of Natural Sciences. It also may provide insight into various scientific questions, such as how turtles evolved and how they are related to other creatures.
To read the full article, click here.
Friday, October 14 2011
Dugongs and turtles are having major issues in Queensland, but locals have made changes in their hunting practices to help the animals rebound. From Big Pond:
Queensland Environment Minister Vicki Darling on Thursday said the Girrigun Aboriginal Corporation, which covers two clan groups in the Townsville region, had agreed to suspend hunting of both species indefinitely.
The clans are entitled to hunt both species under the Native Title Act but agreed to stop after widespread flooding across Queensland last summer damaged sea grass beds - the major food source for both animals - along the coastline.
The agreement comes two weeks after traditional owners' groups from Bundaberg to Gladstone agreed to self-imposed bans on hunting both species
On our own shores, fisherman make changes to shrimping to help the turtles in the Gulf:
The study's authors estimate that 4,600 sea turtles die each year in U.S. coastal waters.
Before measures to reduce bycatch were put in place, total sea turtle takes surpassed 300,000 annually. Of these, 70,000 turtles were killed.
The study used data collected from 1990 to 2007 by the National Marine Fisheries Service (NMFS) to determine bycatch rates across more than 20 fisheries operating in Atlantic waters from the Gulf of Mexico to the Canadian border, and in the Pacific Ocean, along the West coast and around Hawaii.
It found that overall turtle bycatch rates, including both fatal and nonfatal run-ins, have fallen about 60 percent since 1990.
Visit Science Daily to read the full article.
Thursday, October 13 2011
Did Titanoboa, the largest known snake from the Paleocene epoch, battle a super-sized freshwater croc for prey and survival in Columbia? That's the question paleontologists are now asking themselves.
The 60-million-year-old freshwater relative to modern crocodiles is the first known land animal from the Paleocene New World tropics specialized for eating fish, meaning it competed with Titanoboa for food. But the giant snake could have consumed its competition, too, researchers say.
"The younger individuals were definitely not safe from Titanoboa, but the biggest of these species would have been a bit much for the 42-foot snake to handle," said lead author Alex Hastings, a graduate student at the Florida Museum of Natural History and UF's department of geological sciences.
The new species is a dyrosaurid, commonly believed to be primarily ocean-dwelling, coastal reptiles. The new adult specimens challenge previous theories the animals only would have entered freshwater environments as babies before returning to sea.
To read the full article, click here.
Wednesday, October 12 2011
Philandering may be the key to raising your kids right, at least in the world of frogs.
Focusing on the African grey foam nest tree frog (Chiromantis xerampelina), the researchers sought to understand why females behave promiscuously, despite the risk of disease, injury and predation.
"One hypothesis for female promiscuity is that females can increase the genetic diversity of their offspring and, in so doing, increase the chance that at least some offspring survive and reproduce," Dr Byrne said.
Dr Byrne said the argument for mating with multiple partners (polyandry) was that it increased genetic diversity cushions against fluctuating selective forces in challenging environments.
"The frog's offspring are developing in an environment that's highly unpredictable in terms of rainfall, food availability and predation risk," said Dr Byrne.
"If the environment is fluctuating, it is very difficult for females to predict which male partner will provide genes that give her offspring the best chance of performing well in the future".
So what happens in the forest, stays in the forest. To read the full article, click here.
Monday, October 10 2011
After strong conservation efforts, 80 sand lizards were released in Hengistbury Head, Dorset.
The last positive sighting of a sand lizard at this site was in the 1960s.
Once commonly found on sand dunes and heathland, the lizards became endangered due to gradual destruction of their habitats.
The captive bred sand lizards, reared at Marwell Zoo, have been released at Hengistbury Head as part of a long-term conservation project to restore the species status.
During the 20th Century a 90% loss of sand lizards was recorded in Dorset.
To read the full article, click here.
Sunday, October 9 2011
The auction was a blast as always, but there were more bittersweet and touching moments. The Russ Gurley original doll of the year was of Todd from Timberline. For those who have been at the auction, you may already know this, but Todd supports all the auctions amazingly. This is his world and as he said, his family, he wants to take care of it as best he can.
You saw the video last night that streamed live from my cell phone of the special Pro Exotics auction to help them rebuild. That portion of the auction raised $22,000.00 for the gang at PE but they turned around and gave some of that back to the primary PIJAC/USARK Auction total. Robyn was very heartfelt in his words and his gratitude. There was a strong family feeling. Russ Gurley donated another doll this year of Robyn and Chad special for that auction.
The total raised for PIJAC/USARK was about $46,000.00 and a record for any of these fundraising auctions. I bid occasionally but only walked away with the one thing I planned to get, " The Complete Carpet Python" book.
Of course there are retics! Retic, while not everywhere are in fact definitely easy to find. The breeding of the dwarf groups is going amazing and there are now carpet python sized retics out there. Yeah there is a limited group of folks selling them here but they are passionate about their big kids and really that is a lot of what this community is about. We all heavily embrace what we love. This is my favorite from the show, but there are some rocking retics. Kevin has his anthrax, head over to the back wall and find Twin City for some and to the right wall and find the breeder of this gem.
Remember to check our Tinley 2011 photo gallery for photo regularly.
Saturday, October 8 2011
The NARBC auction is bringing in some sorely needed re-building dollars for the folks over at Pro Exotics. Cindy was able to upload a bit video from of tonights auction. Check it out!
Morphs, ehhh not so much for this keeper, at least not today. Really there was absolutely NOTHING special about this ball. A small normal baby in a white deli cup, but for me this was the coolest ball python I had seen all weekend. The cool factor however was in the body of the new owner. His first snake ever, he has a pet hermit crab, but this will be the start of his madness. Tinley 2011 is the first time this person ever got a reptile. Sure, he didn't have to pay for it, but I am sure soon down the road he will be able to help his parents care for it. Of course almost everyone who saw this future rock star of the reptile community was asking to take a photo, so he was less than thrilled and couldn't understand everyone fawning all over him. This is our future!
After my happy countdown, the show doors officially opened today. It was the single biggest line I remember seeing and this year they actually tried to really speed things up by creating a wait line and a pay line. Pay, get your wristbands and hit the longest lines I have ever seen at Tinley. Through the lobby, outside and wrapping around the back of the building, when I came back to my room at 10:45, it was still almost to the end of the building. I am about ready to head back down and wade through the sea of people, so if you see me, grab me and say hi!
The biggest thing I hear from anyone about shows is "It was just another ball fest!" While ball pythons will always remain a major staple at reptile shows simply because they are such a great starter pet and their massive genetic puzzle, there is a new kid making a rise at shows. The Morelia complex is starting to become one of the more popular pythons out there. being one of my favorite snakes, I spent a great deal of time with the guys on Morelia Row. Here is one of my favorite shots of the show. I did pick up 4 rescues today as well. 3 Coastal Carpets and a stunning Jungle Carpet will now move into my educational programs. I need to also pick up " The Complete Carpet Python" which is being offered for sale this weekend for the first time. NARBC is now MORELIA FEST!
Friday, October 7 2011
All it took was one person liking a status that well, really had nothing to like about it. When Pro Exotics had it's fire recently, Dwayne liked that status and now a revolution is born.
My very first stop once I got my vendor badge was to find Robyn Marklund from PE. It wasn't hard, he was at the door chatting. As I was walking up, I heard him say "The Boelens are are all gone." Yeah that was the species they had that I coveted. A huge hug later, we hot footed to Ship Your Reptiles booth for me to get my "What The Sh*t Dwayne" shirt. I paid a little extra for my shirt and really I want to ask that anyone who buys one this weekend do the same. Even $5 bucks extra. Yeah they had insurance, but you know what, insurance has a cap. They will never be able to recoup what they lost in the fire. This is a time for us to prove we are a community of friends. I did it, so can you.
We're on the road again! I'm heading out to represent kingsnake.com at the North American Reptile Breeders Conference in Anaheim, CA.
kingsnake.com will be covering NARBC live again, just like we did NARBC Anahei, last month.
If you're there, look for me at set-up on Friday as well as at the show and auction over the rest of the weekend. Stop me and say hi!
We'll be enjoying the chance to bring the show to those not able to be there. And if you are at the show, we will keep in touch with you as well. Live blogs of the talks, photos from the show floor, interviews with vendors and attendees as well as taking you along on any herping trips will all be happening.
A few ways to keep up with us this week are listed after the bump.
Continue reading "Join kingsnake.com at NARBC Tinley Park."
Wednesday, October 5 2011
The US Fish and Wildlife moved Ozark Hellbenders into the endangered species column today and has plans to move it to CITIES appendix III listing on October 6, 2011.
Under the ESA, an endangered species is any species which is in danger of extinction throughout all or a significant portion of its range. The Ozark hellbender, which grows to lengths up to 2 feet, inhabits the White River system in southern Missouri and northern Arkansas. Ozark hellbender populations have declined an estimated 75 percent since the 1980s, with only about 590 individuals remaining in the wild.
It is believed numbers have dropped because of degraded water quality, habitat loss resulting from impoundments, ore and gravel mining, sedimentation , and collection for the pet trade.
Also threatening the Ozark hellbender is a fungal disease, chytridiomycosis (chytrid), and severe physical abnormalities (e.g., lesions, digit and appendage loss, epidermal sloughing) which most Ozark hellbenders exhibit.
In addition, the average age of Ozark hellbender populations is increasing and few young are being found, indicating problems with reproduction or juvenile survival. This, and the multiple threats from disease and habitat degradation, could lead to extinction of the Ozark hellbender within 20 years.
“The Ozark hellbender faces extinction without the protection afforded by the Endangered Species Act,” said Tom Melius, the Service’s Midwest Regional Director. “Listing provides tools and an infrastructure within which partners can pool resources and expertise to help save this species.”
To read the full press release, click here.
Tuesday, October 4 2011
When most people think of alligators, very few think, "Wow! What amazing mothers they are!"
Maybe that should change:
Maternal instinct in the wild has rarely been better captured on camera. As Claudia Marlene, the photographer who took this amazing sequence of photos, says it: "Hero Mom!” Couldn't have put it better.
While there isn't much in the way of words, the story told by these photos is purely amazing! To see the full set, click here.
Monday, October 3 2011
As a 13 year old boy scout, Alan Templeton met his first collared lizard in the Ozarks. Fast forward to today, when a colleague mentioned to him he was studying the animals but having a hard time locating them.
In 1987 Templeton transplanted collared lizards to three glades to see if he could repopulate the Ozarks. By 1993 they were still there, but they had not expanded to other glades, even though other rich habitats were no more than 200 feet away. If they remained that isolated, they would probably die out, as others had done before them.
That led to a decade-long "experiment," as Templeton put it, in conservation biology. Every effort to protect, or restore, a critical habitat is an experiment, he said, because not enough facts are known in the beginning, and it's not always clear what the result will be.
One thing did seem clear. Humans had been changing the Ozarks since the first Indians settled in the area, about 10,000 years ago. More recently, some areas had been carved out for ranching, and frequent fires had altered the landscape. And in the 1940s, authorities began controlled burning of forest areas in hopes of reducing the threat of major fires that could wipe out thousands of acres.
But there was something wrong with that picture. That wasn't the way nature had protected the lizard's habitat prior to human occupation. When a fire started, it burned everything. Maybe, Templeton thought, that's the way it should be.
To read the full article, click here.
Sunday, October 2 2011
The very first lizard that has had its DNA sequenced was a Green Anole, and there is hope that this will shed more light on the makeup of vertebrate evolution.
In a paper appearing in Nature, a consortium of scientists share the information they've gleaned from the first sequencing of a reptile’s genome. They believe that A. carolinensis could be important for understanding the evolution of the amniotic egg, and that its genome could help them discover how it has so easily adapted to a number of various habitats, as well as lead them to the common ancestor that all amniotes (species that reproduce via amniotic eggs) share.
Amniotic eggs are eggs that have a shell and can hold water. They're a big evolutionary deal because they allowed species to be able to reproduce on land. Scientists have sequenced the genomes of mammals and birds who reproduce in this way, but A. carolinensis is the first reptile.
To read the full article, click here.
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