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.
Friday, February 28 2014
It's that time again! Although, truthfully, over most of Florida anytime is "that" time. That time is vocalization time for one of our most abundant anurans, the Florida leopard frog, Rana ( Lithobates) s. sphenocephala.
Unlike the northern leopard frog that wanders so far from water that it is often dubbed the "meadow frog," our Florida form is usually not encountered more than a couple of powerful jumps away from water. But it is not awfully particular about the water source. I see it near swamps, marshes, ponds, lake edges, ditches, canals, even in our little artificial frog and minnow ponds in the backyard.
Oh, and did I mention the little halves of the rain barrels where I grow a few aquatic plants? Yep, they even call from these and are adept at jumping over the 18" walls. In other words, if there is standing water of reasonable quality the leopard frogs are quite apt to be present.
Florida leopard frogs are not bashful about advertising their presence. The chuckles and squeaks of their calls can be heard sporadically during the day and almost incessantly from dusk til midnite. They are most vocal on rainy nights.
The ground color of these profusely spotted frogs may vary from brown to bright green but is often a pale olive. (The frog in the image above is a brighter green than is usual.) All in all they are a pretty and welcome natural addition to our garden herpetofauna.
More photos under the jump...
Continue reading "Florida leopard frogs"
Check out this video "Snack Time," submitted by kingsnake.com user boa2cobras.
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This image of a Kentropyx borckiana, uploaded by kingsnake.com user davemangham, is our herp photo of the day!
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Thursday, February 27 2014
The Eastern mud snake, Farancia a. abacura, remains quite common throughout its range. Unlike the related riverine rainbow snake that feeds almost exclusively on migratory American eels, the mud snake eats resident elongate salamanders of the genera Amphiuma and Siren, as well as an occasional frog.
Mud snakes are a large snake with occasional females exceeding 6.5 feet in length by a few inches. Males are smaller.
This is a primarily aquatic snake that is found in many swamps and marshes from southeastern Virginia and central Georgia to the southern tip of the Florida peninsula. Throughout much of Alabama and the western panhandle of Florida it intergrades with the western subspecies. Where populous, these snakes may often be seen crossing roads on sultry/rainy nights. Heavy vehicular traffic can wreak havoc at such times.
Mudsnakes are beautifully colored. They are shiny black dorsally and primarily red ventrally. There are regularly placed black blotches along the edges of the belly scales on both sides. The tail is tipped with a conical spine.
Occasional examples are anerythristic, the red being replaced by white. Albinism is known.
When in their range and habitat this is a species that you should take the time to look up.
More photos under the jump...
Continue reading "The beauty of mud snakes"
The U.S. Fish and Wildlife Service has announced it's placing the Georgetown and Salado salamanders on the threatened species list, despite ongoing opposition from pro-development forces in Texas.
From the Austin Business Journal:
The salamanders have been a contentious issue for both environmentalists and some community officials, who have struggled over how to protect the animals while preserving development opportunities. The full impact of the decision won't be clear until the Fish and Wildlife service sets rules for how the salamanders will be protected, according to a report in the Austin American-Statesman.
In the case of the Georgetown salamander, the agency may allow local Georgetown's local protections to remain in place. Those regulations prevent development within 80 meters of a salamander site and within 50 meters of a spring as well as limited development up to 300 meters upstream. The city passed those rules in December hoping to fend off federal protection, the Statesman report said. If the federal agency decides the local ordinances are sufficient, local developers won't need a federal permit for building.
Read more...
Photo: Texas Parks and Wildlife
This image of a Mud Turtle, uploaded by kingsnake.com user DirtyTurtle, is our herp photo of the day!
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Wednesday, February 26 2014
This image of a Albino Western Racer, uploaded by kingsnake.com user jpsjungle71, is our herp photo of the day!
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Tuesday, February 25 2014
Was a milk snake discovered in the Galapagos?
Equador's Ministerio del Ambiente (Ministry of the Environment) announced that yesterday, a group of citizens from the island of Santa Cruz in the Galapagos Islands gave the Rangers a snake so far unidentified, possibly a false coral, that was hit on the road Puerto Ayora - Itabaca Channel, off Santa Rosa parish.
After reviewing the photograph published to the ministry's website, kingsnake.com staff members agree that the snake appears to be a member of the Lampropeltis triangulum group, known commonly as milk snakes. Possibly a member of the micropholis subspecies, found natively in Ecuador and known as the Equadoran milk snake, little has been published on the sub-species, and few specimens or even photographs exist.
As milk snakes are not known to be native to the Galapagos, it is most likely that the snake arrived as a stowaway and slipped through the Galapagos quarantine programs. If so, according to historical record, this would be the first confirmed case of snake introduction to the Galapagos Islands. But there is also the slim chance that the snakes are native to the island, their presence being unknown and unrecorded for all these years.
The Ministry of Environment, through the Galapagos National Park (GNP) and the Agency for the Regulation and Control of Biosecurity and Quarantine for Galapagos (ABG), has established an action plan to monitor the area finding and determine the possible origin.
To read the original press release in Spanish, click here. To read a Google translation, click here.
A Missouri car accident involved some unusal cargo: Four alligators.
From KMBC.com:
KFVS-TV reports two crashes happened in the southbound lanes of Interstate 55 in the southeast Missouri community around 7 p.m. Saturday.
Four alligators ranging from 3 feet to 5 feet long were being hauled in a small trailer behind one of the cars.
A man and his wife who were in the car pulling the alligators were injured in the wreck. Police say the animals remained inside.
Read more...
Based on a small series of specimens that he collected (total of 3 in the late 40s and early 50s), Wilfred T. Neill described the Southern Florida Rainbow Snake, Farancia erytrogramma seminola, in 1964.
Found by Neill in a fairly large (but not always flowing) creek in southern Florida, Neill based his diagnosis on the greater amount of black pigment on the venter and lower sides of this subspecies when compared with the more northerly common rainbow snake. Reportedly an obligate eel-eater, the perceived or actual rarity (this snake was declared extinct by US Fish and Wildlife Service biologists on October 5, 2011) might be due to a reduced number of eels in the waterway.
Despite the edict issued by USFWS, several attempts have been since made by private individual and conservation organizations to find this subspecies. Although all efforts have failed, rewards for verified sightings have been offered and hope that this snake will again be found continues.
More photos under the jump...
Continue reading "Gone in Our Time? The Plight of the Southern Florida Rainbow Snake"
This image of a North Mexican Pine, uploaded by kingsnake.com user viandy, is our herp photo of the day!
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Monday, February 24 2014
Danville, Virg., fisherman Morris Lawson took photos of dead turtles on the banks of the Dan River, and shared them online. They've raised a lot of attention to the possible impact of the coal ash spill on wildlife in the area.
From WGHP Fox 8:
“One turtle was at the dam up on the bank about two feet out of the water. And the other turtle was located about where that tree is [by the boat ramp] about two feet up out of the water on the bank. And he was on his back. The other one was on his belly,” explained Lawson.
Jenny Edwards is a program manager with the Dan River Basin Association.
“We have heard some reports that turtles appear to be crawling up on the banks and dying,” she told FOX8.
Edwards added, “Turtles should be hibernating this time of year. It’s cold. They hibernate down in the mud. The fact that they’re crawling up on the bank and dying, even if it’s not in mass numbers… It’s highly unusual.”
She emphasized, “Even though we can’t directly link it to coal ash, this is exactly the sort of thing we expected to start seeing.”
Read more...
Residents can report dead wildlife in and near the river at this link; more information here.
Photo: Morris Lawson
This image of a Newt, uploaded by kingsnake.com user Eugeny, is our herp photo of the day!
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Friday, February 21 2014
Check out this video "Arizona Field Herping," submitted by kingsnake.com user smetlogik.
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This image of a Garter Snake, uploaded by kingsnake.com user BryanD, is our herp photo of the day!
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Thursday, February 20 2014
Peru’s treasured Manu National Park is the world’s top biodiversity hotspot for reptiles and amphibians, according to a new survey published last week by biologists from the University of California, Berkeley, Southern Illinois University in Carbondale (SIU-Carbondale) and Illinois Wesleyan University.
The park, which encompasses lowland Amazonian rain forest, high-altitude cloud forest and Andean grassland east of Cuzco, is well known for its huge variety of bird life, which attracts ecotourists from around the globe. More than 1,000 species of birds, about 10 percent of the world’s bird species; more than 1,200 species of butterflies; and now 287 reptiles and amphibians have been recorded in the park.
“For reptiles and amphibians, Manu and its buffer zone now stands out as the most diverse protected area anywhere,” said study coauthor Rudolf von May, a postdoctoral researcher in UC Berkeley’s Museum of Vertebrate Zoology.
Despite the park’s abundant and diverse animal life, von May said, not all is well in the preserve. The devastating chytrid fungus has caused a decline in the number of frogs there, as it has elsewhere around the world, while deforestation for subsistence living, gold mining and oil and gas drilling are encroaching on the buffer zones around the park.
“All of this is threatening the biodiversity in the park and the native peoples who live in settlements in the park,” von May said. At least four Amazonian tribes and a nomadic group of hunter-gatherers known as Mashco-Piro live within the confines of Manu National Park and its buffer zone.
Von May, a native of Peru, and coauthor Alessandro Catenazzi, an assistant professor of zoology at SIU-Carbondale, have spent more than 15 years each scouring the park and its surrounding areas for frogs, toads, salamanders and caecilians – all amphibians – as well as for reptiles such as snakes, lizards, turtles and caimans. The field work in the park and its buffer zone, augmented by other, more limited surveys published previously, allowed the team to compile a list of 155 amphibian and 132 reptile species, including a handful of species new to science. Taxonomist and coauthor Edgar Lehr, assistant professor of biology at Illinois Wesleyan University, collaborates frequently with von May and Catenazzi on frog taxonomy and studies of amphibian declines and conservation.
Continue reading "Peru's Manu National Park is herp diversity hotspot"
This image of a Tortoise, uploaded by kingsnake.com user emysbreeder, is our herp photo of the day!
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Wednesday, February 19 2014
New research at the University of Sydney may give conservation of crocodiles a boost by examining how their tough lives have given their immune systems an evolutionary advantage.
From Phys.org:
The MHC is a group of genes that help the immune system identify microbes and parasites. They play an important role in disease resistance, as diverse genes allow animals to resist a wider range of diseases. The research published this week in the journals PLOS ONE and Immunogenetics shows that some of the genes involved in the fight against viruses, bacteria and parasites have remained the same across all crocodilian species while other immune genes seem to have diversified in crocodiles.
"The diverse environments occupied by many crocodilians, whether saltwater crocs in the Northern Territory or alligators in Florida, appear to have exposed crocodilians immune genes to a wide range of germs," Dr Gongora said.
Researchers found multiple instances of crocodilians losing and/or duplicating genes showing that their immune system is still responsive to evolutionary changes.
"We now have a genetic resource to understand the immune system in crocodilians, thanks to this research. It will enable genetic investigations of how these animals respond to local conditions including susceptibility to disease," said lead author of the article Weerachai Jaratlerdsiri, who recently completed his PhD at the University of Sydney.
Read more...
This image of Dart Frogs, uploaded by kingsnake.com user stefan31, is our herp photo of the day!
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Tuesday, February 18 2014
A large "highway under construction" sign lay mostly submerged in the South Carolina slough, but the top corner was exposed and propped up by the road shoulder.
Gordy Johnston and I were hoping to find an eastern kingsnake on the grassy shoulder. Of course, we knew when we saw the nearly submerged sign that we would have to check beneath it for a water snake or two. We lifted the sign and the watery mud on which it lay harbored a snake all right, but one that was totally different from what had been expected.
Beneath the sign was a magnificent rainbow snake, Farancia e. erytrogramma. I stared in disbelief at the black and red linear pattern and spine-tipped tail of this beautiful denizen of marshland, riverine, and estuarine habitats, the first rainbow snake I had ever seen.
That first sighting was back in the early 1950s, a time when both the rainbow snakes and their prey-fish, the American eel, were actually common. Now, 60 years later, because of detrimental habitat modifications, both the snake and its food fish are quite uncommon. In fact, there are many field herpers of today who, despite searching diligently through habitat in locales known to have once supported these secretive snakes have failed to find them.
But while the populations of the common rainbow snake have undeniably declined, those of its more newly described southernmore relative, the southern Florida rainbow snake, seem to have been entirely extirpated. But that is another story.
More photos under the jump...
Continue reading "Notes on the Common Rainbow Snake"
Looks like ancient reptiles got deliveries from the stork. That's an amazingly inaccurate paraphrase of a recent study published on the journal PLOS ONE, which analyzed an ichthyosaur fossil.
From National Geographic:
The 248-million-year-old fossil from the Mesozoic era (252 to 66 million years ago) reveals an ichthyosaur baby inside its mother (orange) and another stuck in her pelvis (yellow). A third embryo discovered nearby suggests it was stillborn; scientists believe the mother died during a difficult labor.
The narrow, eel-like ichthyosaur belongs to the genus Chaohusaurus and is the oldest known species of the group.
[...]
It's not just the age of the Mesozoic-era discovery that is surprising; it's the shattering of the belief that ichthyosaurs—also dubbed sea monsters—gave birth in water, not on land.
The scientists reached their conclusion because the fossil showed the offspring emerging head-first—a behavior found only in animals that give birth on land.
Read more...
This image of a Motley Cornsnake X Nelson's Milksnake, uploaded by kingsnake.com user mesozoic, is our herp photo of the day!
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Monday, February 17 2014
Developers or snakes? You decide.
From the Kansas City Star:
Barely a half-foot long without a drop of venom, the redbelly snake hardly seems a threat.
Unless you’re a developer or public official in Johnson County.
Listed by Kansas as a threatened species, the reddish brown reptile with the orange belly is complicating growth in Johnson County.
County leaders are reluctant to dip into taxpayers’ wallets to preserve a snake habitat disrupted by new development. So they are waging a battle with the seldom-seen snake that’s not much longer than a typical worm.
They’re asking the Kansas Legislature to remove the redbelly and the comparable smooth earth snake from the state’s threatened species list.
Read more...
Photo: Suzanne L. Collins/Kansas City Star
This image of a Gila, uploaded by kingsnake.com user Kevin Earley, is our herp photo of the day!
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Friday, February 14 2014
The southeastern two-toed amphiuma and its more westerly three-toed relative were no strangers to me. But it was not for more than three decades after Wilfred T. Neill found and described the one-toed amphiuma, Amphiuma pholeter, in 1950 that I became acquainted with the little salamander.
In fact, it was not until researcher Paul Moler took a bit of time to describe the habitat of this third species that I finally succeeded in finding a few. It was, it turned out, a mud dweller, but rather being an inhabitant of mud-bottomed ponds and ditches as reported in most mentions, the one-toed amphiuma dwelt in the soupy mud of creek side and swampy seepeages. Small wonder my earlier searches had been futile.
Unlike the two and the three-toed amphiumas, both of which attain adult lengths of about 3 feet, the average size of the one-toed amphiuma is between 9 and 12 inches long. It is very slender; has reduced, lidless, eyes; and its legs, each bearing a single digit, are comparatively tiny. What a wonderfully adapted caudatan.
More photos under the jump...
Continue reading "One-toed amphiuma"
Check out this video "Honduran Milk Snakes," submitted by kingsnake.com user boa2cobras.
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This image of a Happy Valentine's Day, uploaded by kingsnake.com user Thera, is our herp photo of the day!
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Thursday, February 13 2014
When the male túngara frog whispers sweet nothings into his loved one's ear, it's not a private conversation.
From Wired:
Male túngara frogs, native to Central and South America, gather at night in shallow ponds and call to attract females. They space themselves out carefully, each male defending a small calling site. Competition for females is serious business, and males will fight if one horns in on another’s chosen calling site.
A new study shows how the male túngara frog’s call inadvertently creates a multisensory message that can be exploited by both rivals and predators.
[...]
But these courtship signals meant for females aren’t just overheard by rival male frogs. They also provide frog-eating bats (Trachops cirrhosus) with a way to pinpoint the location of their next meal. The frog-eating bat specializes in túngara frogs, using a combination of echolocation and eavesdropping to detect them. A frog will stop calling if it sees a bat flying overhead, but ripples continue to move through the water for several seconds after the call ceases, leaving a “footprint” of the frog’s presence.
Read more...
Photo: Ryan Taylor/Salisbury University
Chickens, at least our ornamental chickens, are not overly bright. They either totally ignore the occasional yellow rat snake that finds its way among them or, if the snake happens to be small, they may gather around to peck at it.
Fortunately they are big chickens and the snakes usually just pass through the coop with no harm occurring to either party. Yellow rat snakes (I'll continue to refer to them as Pantherophis obsoletus quadrivittatus even though they are formally known now as Eastern rat snakes, Pantherophis alleghaniensis) are one of the more common backyard snakes here.
Not only are we alerted to their presence by cackling chickens, but I occasionally turn them up beneath coverboards in the yard, amidst plants in the small greenhouse, and we are made aware of those in the big oaks (including ones hiding in clumps of Spanish moss) by the hordes of busybody birds that gather to harass them.
As yellow rat snakes go, the adults of the local ones are not particularly pretty, being of a decided yellow-green hue. They bear four broad and distinct dark lines. The juveniles lack the striping and are strongly blotched. Since we live in an area that has plenty of cotton rats and cotton mice, the rat snakes we do see always look well fed. It's a pleasure to be able to coexist peacefully with these interesting colubrines.
More photos under the jump...
Continue reading "Our backyard yellows"
This image of a Nuu Ana Leachianus Gecko, uploaded by kingsnake.com user MikeRusso, is our herp photo of the day!
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