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Frogs And Toads Of New York

Most everyone recognizes frogs. Frogs, like salamanders and newts, are amphibians. Unlike salamanders, they have made a major evolutionary detour from the body plan of their ancient ancestors. The hind legs of frogs are much larger than the forelegs and the tail has disappeared. This allows a new mode of locomotion, namely jumping, an effective method to elude their many predators. Because they leave the ground to get around, using scent to communicate with each other is not a viable option, as it is for salamanders. Consequently, frogs are among the most vocal of vertebrate animals (birds fly, so they vocalize a lot as well!). Frogs in New York fall into four major groups (families) linked by anatomy and other features of their biology.

Toads

Toads are frogs that, due to the nature of their coarse dry skin, are adapted to spend most of their life on land. We have three kinds in two different families. The very common American toad is easily recognized by the warts all over its back and sides and by a pair of large bean-shaped glands are located just behind the head. These glands produce a mild poison that the toad stores in its bladder. When handled, toads will produce a copious urine with enough of this foul-tasting toxin to deter most predators. As a consequence, toads do not need to be good leapers to escape their enemies. Toads begin breeding late in April when males begin producing their long, rather musical trill. One can imitate this call by whistling and humming at the same time. Toads use all sorts of water bodies to deposit their long strings of eggs. Since hatching and tadpole development can be completed in as little as four to six weeks, toads often use temporary bodies of water to deposit eggs. This may include large puddles and deep tire tracks that hold water.

The similar Fowler's toad is found in the southeastern part of the state and on Long Island. It has many warts in each of the dark spots on its back and sides, while the American toad has one or two warts per spot.

One representative of the spadefoot toad family reaches New York, although they are restricted to the sandy-soil pine habitats of Long Island and the Pine Bush near Albany. Spadefoots can be recognized by their rather smooth skin, vertical eye pupils, and the dark hard patches of skin on their toes used for digging. They spend much of their time underground and are most active on the surface at night following heavy spring and summer rains.

Treefrogs

The only true tree frog of New York, the gray treefrog, is common over the entire region. It is most often observed in late spring and early summer when the males make their characteristic loud trilling calls. Calling sites are usually in the lower branches of trees near the water's edge. They possess large round toe pads that enable them to maintain their grip even on vertical surfaces. Adults are mostly gray with black splotches but they can change their color pattern to a degree and may appear bright green to silvery. A flash of yellow is found on the undersides of their legs.

The spring peeper is clearly one of the most common vertebrate animals in New York, found in nearly all forested habitats within a few miles of standing water. Although few have actually seen one, nearly everyone has heard the distinct, and very loud, peep these tiny frogs produce. Despite their inclusion in the treefrog family, peepers are rarely found in trees. Outside of the breeding season they may be found leaping along the forest floor in search of insects. And what a leap it is, nearly 50 times their inch and a half length! In the breeding season, male peepers gather in the weedy vegetation at the edge of ponds to call and attract females for mating.

Eggs are attached singly to underwater plants and hatch within a week. After about 45-60 days, depending partly on water temperature, the tadpoles emerge from the water and inhabit the leafy litter of the forest. Other members of the treefrog family include the northern cricket frog, found in a few areas south of the Catskills, and the western chorus frog, which occurs along the western Lake Ontario plain and the Watertown area.

Typical Frogs

The bullfrog is the clear winner in the size department among New York frogs, attaining lengths of 7 inches from snout to tailbone. The low frequency "jug-o-rum" call they produce is familiar to all May and June visitors of the region's lakes and ponds.

Like all amphibians, bullfrogs are carnivorous and they will attempt to eat anything that will fit into their considerable mouths. This includes insects, snakes, other frogs, and even birds and mammals. Like most frogs, bullfrogs are visual predators and will react by orienting their bodies towards any small movements around them. If you see a frog catch an insect, look closely and it seems like it closes its eyes as it swallows. Small muscles attached to the eyeball pull it towards the back of its throat and help force the food down into the stomach.One of the most common mid-sized frogs across New York is the green frog. They can be superabundant in marshes, ponds, lakes, and quiet backwaters of streams if their insect food supplies are also abundant. Male green frogs, like those of bullfrogs, have visible eardrums on the side of their heads that are bigger in diameter than their eye. The eardrum of females is smaller than the eye. Green frogs make at least six vocalizations, but the most often heard is the advertisement call of the male. It has been compared to plucking a banjo string.

Mink frogs may be found in the colder waters of northern New York, primarily in the Adirondacks. They are small frogs that at first glance are easily confused with the much more common green frog. Careful examination of the spotting pattern across the folded hind limbs, which appears random in mink frogs and continuous in green frogs, will distinguish the two. The presence of a strong musky odor on your hands after you release one will clinch the identification as a mink frog.

Before winter is officially over, and often while there is still ice on the ponds, a sound like quacking ducks may be heard in forest ponds and beaver flows. This is the wood frog, the first of the New York amphibians to make an appearance each year.

Wood frogs hibernate in the leaf litter of the forest floor, usually just a few inches below the surface. Scientists have learned that these frogs, as well as the spring peeper and gray treefrog, can tolerate partial freezing of their body tissues, a condition that is lethal to most animals. They accomplish this through two methods. The first entails the use of antifreeze compounds, including the same ethylene glycol we put in our automobiles, that circulates in their blood and lowers the freezing point. The second mechanism involves removing much of the water from their cells so it doesn't freeze inside the cells. When water freezes, it expands and the resulting ice could easily break apart cell membranes.

Wood frogs possess a distinctive black patch around the eyes on an otherwise brown body. Wood frogs are found throughout the forested parts of New York and may be observed quite far from water. There are two species of common dark-spotted frogs found across New York, often side by side at pond edges. The northern leopard frog is light brown to bright green with dark round spots, each with a light border, found irregularly on its back and legs. The pickerel frog has a lighter background color and squarish spots with no light border which occur in two rows down its back. There is often a distinct flash of yellow coloration on the thighs of pickerel frogs. Both are fond of the grassy and weedy borders of ponds, and are often found quite some distance from the water. Their early spring staccato calls sound like a particularly loud snore and the two species may be distinguished by the pitch of their call.

Ecological Roles

Like most organisms, frogs are vital links between food web feeding levels because they are important food sources for many other organisms. Frogs, however, play a unique role in connecting aquatic and terrestrial food webs, due to their two lifestyles. All New York frogs start life as aquatic tadpoles, feeding on plant and animal material in water. When they metamorphose into air-breathing adults, they carry some of this aquatic energy stored in their bodies and export it onto land, where it can enter new food chains.

Checklist of Frog Species Found Within New York
  • Eastern Spadefoot
  • Eastern American Toad
  • Fowler's Toad
  • Northern Cricket Frog (Threatened)
  • Northern Gray Treefrog
  • Cope's Gray Treefrog
  • Northern Spring Peeper
  • Upland Chorus Frog
  • Western Chorus Frog
  • Bullfrog
  • Green Frog
  • Mink Frog
  • Wood Frog
  • Northern Leopard Frog
  • Southern Leopard Frog (Special Concern)
  • Pickerel Frog
  • Recommended Reading:

    Conant, Roger and Joseph T. Collins. 1991. A Field Guide to Reptiles and Amphibians: Eastern and Central North America. Houghton Mifflin Co., Boston, MA. 450 p.

    Tyning, Thomas F. 1990. A Guide to Amphibians and Reptiles: A Stokes Nature Guide. Little, Brown and Co., Boston. 400 p.

    Credits:

    Written by Glenn Johnson, Environmental and Forest Biology, SUNY-ESF. Illustrated by Melinda Gray Ardia and Liza Corbett.


    Everyone Can See The Leaves But You Have A High IQ If You Can Spot The Hidden Frog Camouflaged By Reeds In 10 Seconds

    NATURE provides the best camouflage one stealthy frog has found in a bush of reeds. 

    His disguise is so strong that those who spot him in this puzzling photo quickly may just have a high IQ. 

    Can you see the hidden bullfrog in the reeds?

    4

    Can you see the hidden bullfrog in the reeds?Credit: Alamy

    The American Bullfrog is known for living in permanent bodies of water like lakes, ponds and swamps throughout eastern North America. 

    However, in this puzzling photo, the bullfrog is found out of its normal habitat, hiding in a bush of reeds. 

    At first glance, the image appears to just show Iris leaves and Horsetail reeds in a garden located in Salem Lakes, Wisconsin. 

    But eye-eyed animal lovers should be able to spot the frog in the strange surroundings. 

    If you can find the hidden frog in just ten seconds, you may be extremely smart. 

    The green and brown environment provides the perfect camouflage for the small amphibian.

    How quickly did you find him? 

    If you are struggling to spot the bullfrog, be sure to look towards the center of the photo. 

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    Still can't find the frog? 

    Here's a hint: 

    Spot the Letter Fish and Cat with Backend

    Look at the gaps between the green leaves and brown soil. 

    If you still can't spot the stealthy frog, keep reading for a spoiler below! 

    But first, test your brain again with this tricky optical illusion. 

    In the mind boggling image, puzzle lovers are asked to find a solo rabbit in a sea of cats. 

    The cats can be seen wearing different hats and scarves, making the rabbit blend seamlessly into the background. 

    But if you can find the rabbit in just eight seconds, you may have 20/20 vision. 

    If you are struggling to find the cuddly animal, keep your attention to the right side of the photo. 

    How fast can you find the rabbit?

    If that was easy, test your eyesight again by finding the cat in this busy photo. 

    While the image might appear to be a messy desk, somewhere in the room a cat is hidden nearby. 

    Can you spot its pointy ears? 

    Those with top tier vision may be able to find right away that the friendly feline is looking directly at the camera. 

    If you need some help, here's a hint: 

    Read more on the Irish Sun

    Look underneath the messy desk. 

    Check your answer below! 

    The hidden bullfrog is circled in red

    4

    The hidden bullfrog is circled in redCredit: Alamy There is a hidden cat in this messy study

    4

    There is a hidden cat in this messy study How quickly did you find the cat?

    4

    How quickly did you find the cat?

    Cinnamon Frog Species In 'perilous State' Successfully Bred In UK

    A frog species that is in a "perilous state" due to an infectious disease has been successfully bred at a wildlife park in Oxfordshire.

    Keepers at the Cotswold wildlife park in Burford have again bred the near-threatened cinnamon frog, four years after it became only the second zoological collection in Europe to breed the species.

    Reptile keepers have paid homage to the name and called the froglets after different coloured spices including paprika, cayenne, saffron, chipotle and chilli, and they are being looked after in a specialist amphibian breeding room.

    Jamie Craig, general manager of Cotswold wildlife park, said the species is in a "perilous state" due to the chytrid fungus, an infectious disease in frogs.

    He said: "Our dedicated reptile team have been working hard to perfect breeding techniques in our Amphibian Room.

    "Many frog species have incredibly specific requirements, and it is a testament to their hard work that they have now managed to replicate our previous success with the cinnamon frogs.

    "With the perilous state of many amphibian species in the world due to the Chytrid fungus, any expertise garnered from the captive populations may well be important tools for the future of these fascinating creatures."

    Cinnamon frogs are native to parts of south-east Asia including Thailand, Malaysia, Singapore and Sumatra. Photograph: Cotswold Wildlife Park/PA

    Only five other zoos in Europe keep the species with one other successfully breeding the frogs in the last 12 months, according to the wildlife park.

    The amphibians, known for their distinctive reddish-brown colour, similar to cinnamon, and black-and-white spots across their bodies, are native to parts of south-east Asia including Thailand, Malaysia, Singapore and Sumatra.

    The cinnamon frog is also known for its unique call, which was described by reptile keeper Megan Howard as "delicate, beautiful and unusual" after filming the wildlife park's new froglets calling to each other.

    A worldwide campaign known as Save The Frogs Day takes place annually on 28 April to raise awareness about their declining numbers and aims to protect amphibians from extinction.

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    In December 2018, cinnamon frogs and tentacled snakes were among the animals that died in a fire at Chester zoo.

    Visitors were evacuated and keepers were able to move all the zoo's mammal species to safety – including a group of critically endangered Sumatran orangutans, Sulawesi macaques and endangered silvery gibbons – and birds such as rhinoceros hornbills.

    The Guardian reported in October that some frogs handle unwanted male attention by appearing to feign death, a study found.

    Researchers in Berlin said the findings shed new light on the European common frog, suggesting females do not simply put up with the male scramble for mates – a situation in which several males can end up clinging to a female, sometimes fatally.






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