05/31/12

Learning about Nature in the Concrete Jungle

Recently we received an email from Kelly Rypkema, a New York area naturalist who is the producer and host of the video series Nature in a New York Minute. Kelly has just released an episode about the Amphibian Crossing Project in New Jersey, a volunteer-based effort to conserve amphibians in the Northeast.

In the Amphibian Crossing episode, we learn about the manmade obstacles that frogs, toads, and salamanders face each spring as they attempt to migrate, obstacles that threaten their very survival. Kelly joins a team of biologists and volunteers who are working to save these animals by taking matters into their own hands – literally.

If you’re a city dweller with an interest in nature around you, please take a look at Kelly’s site. For nature-oriented news and events, you can follow her on Twitter and Facebook or subscribe to her blog.

05/11/12

Saving Frogs (and a Village) in Ireland

We recently received an e-mail from Laurence Stafford, who lives in a small village called Parteen in County Clare, Ireland. A highway is being proposed that will cut through his village, destroying the habitat of the Irish Common Frog (Rana temporaria).

Photo courtesy www.doeni.gov.uk

Laurence’s e-mail highlights the problem of habitat destruction. What does it matter that frogs are losing their habitat in one small area of Ireland? Unfortunately this type of habitat loss is occurring across the globe: it is one of the reasons for the rapid worldwide amphibian decline. Of course, having a highway cut through a village will have enormous human costs as well.

The story is as follows: there is a joint venture between Limerick County Council and Clare County Council underway to build a highway costing over 352 million euros that will connect Galway to the University of Limerick. The highway will cut through Parteen village.

The Environmental Group of Parteen has warned the emerging preferred route crosses rural farmland, which is home to a protected species, Rana Temporaria. Although this species is fairly plentiful in Ireland, it is protected under an EU directive because of its declining numbers in Europe. The directive aims to protect some 220 habitats and lists approximately 1,000 species, including the frog.

This road will also divide a peaceful and tranquil village in two; the proposed volume of traffic is estimated at 20,000 to 30,000 cars, which calculates at 210,000 a month and 2,520,000 a year passing through a small community.

As reported in the Clare Champion, the group’s concerns are shared by Councillor Pascal Fitzgerald, who is disappointed with the planning of the new road, which he claims will divide settled communities and destroy their living environment: “Even people who have no connections with the area are asking why areas that have been ideal for living in are now to virtually have their heart cut out.”

We hope that the local county councils will rethink this route, both to preserve the frogs’ habitat – so important in this time of declining amphibian populations worldwide – but also to preserve the integrity of the village of Parteen.

Here is more information. Ecoparteen’s Twitter feed is here. Please lend your support!

04/4/12

How Does a Toad Cross the Road? With a lot of Help from their Friends

As the days are getting longer and the sun is getting warmer in the Northern Hemisphere, a young male toad’s thoughts turn to love – it’s mating time for amphibians. Unfortunately this springtime ritual is often fraught with danger for frogs and toads. As we were looking for stories for this week’s post, we noticed a lot of stories about how people in Britain and the U.S. are helping toads make this important but dangerous journey. Here are a few:

Great Britain

Blades of glass rustle as hundreds — if not thousands — of toads spring forth from hibernation, each one a bloated, wart-ridden, writhing mass of arms of legs. Then, wide-eyed and kamikaze-like, they fall from the high kerb [curb] before making a desperate dash across the road, determined to reach their hereditary breeding ground. (As reported by  in the Henley Standard, Henley-on-Thames, England)

Unfortunately the toads in Henley must contend with a human-created challenge — rush-hour. Local toad patrols, however, are helping the toads cross the road. This year they’ve saved 7,500 toads from road death.  The toad patrols can’t stop traffic, but motorists slow down when they see their toad crossing signs and their high-visibility jackets.

Henley Wildlife Group Toad Patrol, courtesy of the Henley Standard, Henley-on-Thames, England

Volunteers spent every night of the past month helping toads by carrying them in buckets. The Toad Patrol happens every year and saves about 80 per cent of the migrating population of toads.

The BBC reports that in Northhampshire, England, hundreds of toads make a yearly one-mile journey from a woodland across a number of roads to an area that is now a housing development in the village of St. Crispins, to the south of Northampton.

Many toads are squashed by cars and dozens more fall into drains as they try to get back to where they were born. But those that do make it alive will find that the pond has been replaced by buildings. Donna Robins, a toad patroller, was quoted in the article as saying: “My house is on the woodland where they used to live, I feel responsible. I see them getting killed every night on the road.”

In Edinburgh, Scotland, the Historic Scotland Rangers are helping out with the toad annual ‘Watch Out, Toads About,‘ which helps toads migrate. Early every morning Rangers carry out patrols to check the nooks, crannies, and drains in Holyrood Park to make sure each toad gets to its destination safely.

In winter the toads live around Arthur’s Seat [the beautiful small mountain right outside the city] and Dunsapie Loch. In order to get to where they spawn, they must cross a public road with high curbs. When the toads are tired and hungry they can become disoriented and may be unable to make that last leap to safety. Volunteers are needed to help the roads cross the road safely.

United States

As reported in the Roxborough (PA) Patch.com, frogs and toads are on the move and in an annual tradition,the Schuylkill Center for Environmental Education has helped them along.

photo courtesy The Schuylkill Environmental Center

The environmental group coordinates volunteer shifts to aid the toads crossing roads. There’s lots of information about volunteering on their site. After the toads breed, the toadlets, about the size of a fingernail, make their move from May 15 to June 30 and hop back to the woods, so volunteers can pitch in later, too.

Recently, according to the Provincetown (MA) Journal, the Cape Cod National Seashore issue an announcement that beginning this spring and continuing through October, certain local roads will  be closed at times, particularly on rainy nights, to protect the spadefoot toad, which is listed by the state as a threatened species.

These unusual toads, one of 12 species of amphibians found within the Seashore, use shallow, temporary ponds for breeding, and the surrounding uplands to feed. They migrate to and from these ponds on rainy nights, especially when the water table is high and temperatures are above 48 degrees.

The toads must cross paved roads, and during such crossings many of these well-camouflaged creatures are unfortunately killed by moving vehicles. Thus there is a need for carefully timed, strategic, temporary detours.

The Province Lands area of Cape Cod is one of the last strongholds for the eastern spadefoot toad in Massachusetts, and the public’s cooperation — and forbearance — is urged in the effort to ensure their survival.

As reported in the article [and mentioned as a difficult issue in some of the other articles cite above], sometimes the public isn’t very enthusiastic about the measures to help amphibians:

A related challenge to protecting these elusive creatures is raising the public’s consciousness about their importance environmentally. By their very nature, spadefoot toads do not attract the throngs of admirers that, say, whales do. Because of their size, habits and habitat, the toads are hard to find and quantify, and are challenging to study. Further, by most standards, they are not very glamorous — except perhaps to herpetologists.

While their tiny, almost invisible close “cousins” the spring peepers can claim status for their joyful, lilting songs that herald the arrival of spring on the Cape, the pained dyspeptic croaking of a spadefoot induces no similar elation. However, in the larger environmental scheme of things they are important marvels of adaptation….

The public can listen in on recordings of frog and toad calls, as well as discussions on amphibian ecology, via links to podcasts and videos on the Seashore’s website. At Frog are Green, we’d like to wish these toads “safe travels” and applaud all  the Toad Patrols in the US and the UK who are helping them along on their journeys.

03/11/12

Become a FrogWatch USA Volunteer: Listen to your Local Frogs

In the U.S., frogs and toads are beginning to wake up from their winter hibernation and soon we’ll be hearing the calls of spring as the amphibian breeding season begins. This a great time to become a Frog Watch USA volunteer, where you will make a commitment to monitor a local site for 3 minutes at least twice a week throughout the breeding season.

You don’t have to be an expert to become a volunteer, but you might find it helpful to attend a Frog Watch training session hosted by zoos, aquariums, and conservation organizations nationwide. Here’s a list of the upcoming training sessions:

Connecticut
Yale Peabody Museum of Natural History
March 16, 2012; 6:00-8:00 pm
March 20, 2012; 6:00-8:00 pm

Florida
Brevard Zoo
April 11, 2012; 4:30-8:30 pm
April 14, 2012; 4:30-8:30 pm
May 23, 2012; 4:30-8:30 pm
June 20, 2012; 4:30-8:30 pm
July 25, 2012; 4:30-8:30 pm
August 22, 2012; 4:30-8:30 pm
August 25, 2012; 4:30-8:30 pm

Santa Fe College Teaching Zoo, Gainesville, FL
March 17, 2012

Tampa’s Lowry Park Zoo
April 5, 2012; 6:30-8:30 pm (volunteer training)
May 3, 2012; 6:30-8:30 pm (call identification and certification)
June 7, 2012; 6:30-8:30 pm (volunteer training)
July 5, 2012; 6:30-8:30 pm (call identification and certification)
August 2, 2012; 6:30-8:30 pm (end-of-season wrap up/pot luck)

Indiana
Fort Wayne Children’s Zoo
March 13, 2012; 5:30-9:30 pm
March 17, 2012; 1:00-5:30 pm

Monroe County Parks and Rec
March 22, 2012; 6:00-9:00 pm

Michigan
Detroit Zoo
March 11, 2012; 1:00-4:00 pm
March 18, 2012; 1:00-4:00 pm

Missouri
Saint Louis Zoo
March 24, 2012; 10:00 am-12:30 pm
March 28, 2012; 7:00-9:00 pm (certification)

New Jersey
Jenkinson’s Aquarium
March 21, 2012; 6:00-8:00 pm

Rhode Island
Roger Williams Park Zoo
March 24, 2012; 10:00am-12:00 pm
April 12, 2012; 6:00-8:00 pm

Tennessee
Chatanooga Zoo
March 31, 2012

Utah
Utah’s Hogle Zoo
March 17, 2012; 2:00-4:00pm

Virginia
Virginia Zoo, March 18, 2012; 5:00pm

At a recent training session at the Lynchburg (VA) Public Library, for example, volunteers listened to the calls and then tried to connect them to a recognizable sound. Here’s one of the frog calls these volunteers tried to identify. Does the call of this Pickerel frog sound to you like a squeaky door – or like a snore?

More information:

The FrogWatch site includes a Frogs and Toads by State list and a link to the U.S. Geological Survey Frog Quiz of frog calls.

02/28/12

Leap Day the Frog Way

We’re happy to feature this guest post by Meghan Bartels from the Panama Amphibian Rescue and Conservation Project in celebration of leaping frogs. Don’t miss the wonderful song below by Alex Culbreth.

The real purpose of leap day may be to keep the calendar aligned with the seasons, but here at the Panama Amphibian Conservation and Rescue Project, we’d like to believe the day is designed to honor our favorite leapers. To celebrate, we’ve put together some fun facts about frog leaping.

Frog Leaping courtesy Brian Gratwicke

Frog Leaping courtesy Brian Gratwicke & Panama Amphibian Rescue and Conservation Project

  • Not all frogs can leap, or even hop. The desert rain frog (Breviceps macrops) has legs that are too short to hop. Instead, it walks.
  • Male frogs of the genus Pipa are known to defend their territory by jumping at and then wrestling other males.
  • The New Guinea bush frog (Asterophrys turpicola) takes jump attacks one step further: before it jumps at a strange frog, it inflates itself and shows off its blue tongue.
  • Stumpffia tridactyla are normally slow-moving critters, but when they’re startled they can abruptly jump up to 8 inches. That doesn’t sound very far, but these little guys are less than half an inch long!
  • The Fuji tree frog (Platymantis vitiensis) may be the leaping stuntman of the frog world. Each time it leaps, it twists in the air—sometimes even 180 degrees—to throw predators off its trail.
  • The Larut torrent frog (Amolops larutensis) gets its name from a nifty leaping trick: it can jump into a fast-moving stream and back to its usual perch, the underside of a rock, without being affected by the current.
  • Similarly, the parachuting red-eyed leaf frog (Agalychnis saltator) gets its name because it speeds to mating opportunities by jumping from trees with finger-and toe-webbing spread wide.
  • The record for longest jump by an American bullfrog (Rana catesbeiana) recorded in a scientific paper is a little over 4 feet. But scientists who went to the Calaveras County Fair, which Mark Twain’s short story made famous for frog jumping, found that more than half the competitors bested that record—and one jumped more than 7 feet in one leap!
  • The Guinness Book of World Records doesn’t include any frogs for their leaping ability. But it does track human performance in frog jumping (jumping while holding one’s toes). There are records listed for the longest frog jump and the fastest frog jumping over 10 and 100 meters.

 

In honor of leap day celebrations being coordinated globally by Amphibian Ark, the Panama Amphibian Rescue and Conservation Project made this video for a frog song written by Alex Culbreth.

02/5/12

Good news for endangered California frogs

We were happy to learn that a few days ago the California Fish and Game Commission voted unanimously to designate two species of native yellow legged frogs inhabiting high-elevation lakes in the Sierra Nevada and Southern California mountain ranges as threatened and endangered species under the state’s Endangered Species Act. The commission acted after the Center for Biological Diversity filed a petition outlining the decline.

photo courtesy National Park Service. Department of the Interior

According to the Center, the population of Sierra Yellow legged frogs has decreased by 75% in recent decades. Reading about these frogs, we were struck by how they are a symbol of the challenges that frogs face worldwide. But they aren’t facing one challenge—they seem to be facing almost all of them:

Introduction of nonnative species: Stocking of nonnative trout in high-elevation Sierra lakes has been the main cause of the species’ decline. The trout eat tadpoles and juvenile frogs and alter the food web of the aquatic ecosystems on which the native frogs depend. The Department is recommending no trout stocking in the state without a fish management plan, and no further stocking of trout in areas that would conflict with protecting yellow-legged frogs.

Pesticides: Recent research has linked pesticides that drift from agricultural areas in the Central Valley to declines of native amphibians in the Sierra Nevada. Pesticides and other pollutants can directly kill frogs and also act as environmental stressors that render amphibians more susceptible to diseases, including a chytrid fungus that has recently ravaged many yellow-legged frog populations.

Loss and degradation of habitat: Grazing, logging, water diversions, off-road vehicles and recreational activity are allowed in frog habitat.

Climate change: Climate change has brought warmer temperatures, decreases in runoff, shifts in winter precipitation in the Sierra from snow to rain, and habitat changes that are rendering frog populations more vulnerable to drought-related extinction events.

A recent settlement agreement with the Center for Biological Diversity, which will also speed protection decisions for 756 other species, requires the U.S. Fish and Wildlife Service in 2013 to make a decision about whether to add the Sierra frog to the federal endangered list.

See the Center for Biological Diversity for more information about these frogs and about the other endangered species they are working to protect.