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Exploring natural history one itsy bitsy spider at a time...

Exploring natural history one itsy bitsy spider at a time...
Showing posts with label herps. Show all posts
Showing posts with label herps. Show all posts

Thursday, November 8, 2012

American Toad

Anaxyrus americanus
Spotted on November 2nd hopping across a hiking trail in slow motion!
Poor little thing must have been freezing!
York, PA

http://amphibiaweb.org: 
 J. Torpor (Hibernation).  During cold winter weather, American toads hibernate terrestrially (Miller, 1909b).  They dig backwards into the soil where they reside or find another hibernation site that permits them to burrow below the frostline (Wright and Wright, 1949; Tester et al., 1965; Ewert, 1969).  American toads are not freeze tolerant (Miller, 1909b; Storey and Storey, 1986) and evidently have no mechanism for freeze tolerance (Holzwart and Hall, 1984).  Hibernation begins as the temperature falls below their normal activity minimum of about 9 ˚C, which is usually October in northern U.S. populations (Oldfield and Moriarty, 1994). 

Monday, October 15, 2012

Fall Salamanders

Long-tailed Salamander, Eurycea longicauda
Shown with pencil for size.

Two-lined Salamander, Eurycea bislineata

Red-backed Salamander, Plethodon cinereas

All three under the same creek-side log at Codorus State Park, PA, October 14, 2012.

Monday, April 2, 2012

Tuesday, May 18, 2010

Spring Babies

Tree Swallow Hatchlings snuggled in their feather bed.

Tiny Spring Peeper leaving the wetland headed for life in the woods.
Young Chorus Frog leaving the wetland.

Wednesday, May 12, 2010

An afternoon at the pond...

This beautiful, warm, muggy spring afternoon is rich with shy sunshine-loving creatures in every nook at Adkins Arboretum.

Painted turtle with her eyes closed paddles through the murky water causing bullfrogs to leap from their basking spots.

Camouflaged to the nines bullfrogs break up the calm surface of the water with their shiny bright green heads.

Red-winged blackbirds acrobatically catch dragonflies in flight and gorge themselves, one after another. I wonder how long the dragonfly population can last at this rate.

A juvenile red-winged blackbird prances through the wetland grasses, not sure whether it's safe to show himself to the crazy photographer lady.

A robin perches on a cattail with a mouthful of meal worms.

Thursday, March 4, 2010

Amphibians on the Move!

It's 40 degrees and rainy outside. That means the first amphibians of the season are beginning to wake from their burrows and head for vernal pools.
Spotted Salamander
New Jersey Chorus Frog

Maryland just launched their Herp Atlas 2010-2014, where volunteers from across the state will record all observations of reptiles and amphibians over the next five years. That data will be used to update distribution maps of these critters in each county of the state. Contact me for more information.

Easton, MD Amphibian Report March 2010:
Chorus Frogs- heard 3/5 and seen 3/3
Spring Peepers- heard 3/5
Green Frog- seen 3/2
Spotted Salamanders- seen 3/3
Painted Turtles- seen 3/5

Thursday, December 4, 2008

Time flies! It’s almost spring again!



Great Horned Owl

Each season miraculous changes take place all around us in nature. Have you watched buds on a tree swell until they burst into tiny leaves? Then watch the leaves grow into one of over forty-three unique leaves found in Maryland? Then weather the summer, change colors, and fall to the ground in autumn? Have you watched your garden be devoured by growing caterpillars, and then decorated with butterflies? Have you found the tiny eggs they've laid on branches and leaves? It's a busy world out there, who's watching?

As the frost subsides in spring and the ground thaws, the forest begins to turn green again from the ground up. Wildflowers break through decaying brown leaves as buds pop on shrubs and vines. Soon the canopy will shade the forest with new leaves. Where sick trees have fallen in a storm, the sun coaxes baby saplings into teenagers. Skinny black bears, raccoons, and squirrels nibble on the freshly grown grasses, leaves and buds.

Wild turkey toms fly down from their roost in the trees and begin calling, "il-obble-obble-obble", early each morning to attract females. If you're lucky you might catch males fighting over females or strutting back and forth trying to look handsome. Male turkeys bite each other in the neck and drag their competitors to the ground. I suggest taking a quiet walk in the early morning to catch a glimpse of turkey mating rituals and feuds.

Listen for male mockingbirds and brown thrashers, two birds in the mimic thrush family. They begin singing their repetitious calls to attract mates and establish territory in March and April. Mockingbirds and brown thrashers alone could sound like an entire forest by mimicking the songs of crickets, frogs, cardinals, flickers, and other birds. Listen very carefully and you might catch them mimicking your squeaky garage door, or wind chime. The mockingbird repeats the same song several times, but the brown thrasher plays a mixed tape singing only two songs of the same tune before moving onto a new one.

If you're up for a treasure hunt in early spring, head outside on a cool night after a rain. Scan the wet roads carefully for moving twigs and hopping rocks. The salamanders and frogs migrating to temporary pools to mate are commonly overlooked. You may find spotted salamanders that get up to 8 inches long and wear large yellow spots down their grey backs or tiny four-toed salamanders that drop their wiggling tails to distract predators. Listen for the wood frogs' call to lead you to the mating grounds.

As the temperatures warm to above freezing, reptiles start to come out of their winter hiding spots for a springtime feast. Box turtles dig out of their tunnel below the frost line and garter snakes scurry from their neighborly winter gathering. Reptiles will spend hours basking in the warmth of the sun, allowing their buffet of young insects, migrating amphibians, and baby rodents to digest.

Keep your eyes and ears peeled for baby grey squirrels scurrying about. Litters of up to six are born as early as February and are weaned from their mom after two months. If you have squirrels in your yard, you're likely seeing the same few squirrels over and over. Grey squirrels usually stay within a single acre their entire lives if there is enough food. Just for fun, can you differentiate the squirrels in your yard from one another? In spring they guzzle buds, oak and maple flowers, mushrooms and grains left on fields.

Great horned owls are already fledging the nest by the time spring rolls around. They learn to hunt while the young of small mammals, reptiles, amphibians, ducks, and raptors are abundant and easy prey. They call very little in spring, since mating has already occurred, but you can still look for evidence of owls. Since owls consume their entire prey, bones, fur, claws, and exoskeletons included, they later regurgitate a pellet of the indigestible material. These castings can be found at the base of trees where owls roost or feed. If you are lucky enough to find one, gently pulling the puzzle of bones and fur apart will reveal what your owl neighbor has been eating!

One of our true hibernators, the only flying mammal, survives the winter by slowly burning its fat preserves. In spring, bats wake once their insect prey is abundant again. There are ten species of bats in Maryland. Each species dines on thousands of insects each night, protecting us from stinging and crop damaging pests. At dusk, you can hear them or spot them against the dull sky.

As the seasons change, watch the flora and fauna for the best show on earth! Let every moment with nature bring a refreshing curiosity to your mind and spirit.

Saturday, April 5, 2008

Herp Atlas!


Greetings fellow reptile and amphibian enthusiasts!!!

If you haven't discovered the online Pennsylvania Herpetological Atlas yet, here it is!!!
http://webspace.ship.edu/tjmare/herp.htm
You can learn all about reptile and amphibian species in PA that are currently deemed "species of concern". The atlas is looking for amateur herpetologists like you to send them photos and gps coordinates where they find these 14 amphibian species and 22 reptile species. These aren't obscure animals you will never see, they're previously common animals like the box turtle and four-toed salamander. Once you submit a finding to the atlas, you can watch for a dot on the PA map showing your finding. If enough people participate, the online herpetological atlas will be able to give us an up-to-date idea of how our PA herps are doing. YAY! Enjoy browsing the great herp links, photo gallery, and distribution maps on the PA herp atlas!

Happy Herping Pennsylvanians!

Thursday, March 27, 2008

Salamanders!


It's spring!! Among other delightful changes (skunk cabbage growing, phoebes singing, tundra swans migrating, wood frogs laying eggs) that also means it's time for woodland salamanders to migrate to vernal pools to breed! I hope you had your eyes peeled these past rainy weeks above 40F across PA! They've been on the move!! These aren't just any ordinary salamanders either. These babies are longer than my hand and just about as long as my boots! That's around 8 inches long!! They're the spotted and Jefferson's salamanders.

Were you aware there are 22 species of salamanders in PA? (http://www.fish.state.pa.us/salamander.htm) Many live under rocks near water, some live in fast flowing streams, some larger salamanders live in large rivers, and some, like the Jeffersons and Spotted live in the woods deep in the ground. These fascinating creatures don't come out of their burrows often other than to mate. It's that time of year! If you're out on a hike keep your ears open for wood frogs which are also dependent on vernal pools. Wood frog calls should lead you in the right direction (listen here: http://www.enature.com/fieldguides/detail.asp?recnum=AR0033). Once you find a pool look for migrating spotted salamanders and softball size egg masses! Lastly, if you're driving near a woody area on a rainy evening, watch out for crossing amphibians!

Happy Spring Peepers!

Sunday, November 11, 2007

Frog Watch USA


After my boyscout program (Reptile and Amphibian Study Merit Badge) yesterday, I am super motivated to continue learning about herps. The boy scouts were a great audience! They asked tons of compelling questions and stayed after the program talking to me and interacting with the animals until their parents dragged them away. I'm eager to learn more and have more intriguing stories so I have more to share with kids when I teach. I was introduced to Frogwatch USA at Powershift 2007 (www.powershift07.org), and finally found time to explore their site. I'm hoping it gives me more interesting points to bring up about amphibian conservation and also another exciting way kids can help in their town.

I am so excited! I just signed up. I can't wait to study frog calls and contribute to a national frog and toad survey! Check it out for yourself! www.frogwatch.org. I'll keep you updated on my progress.

To myself: smiles to remember this week: "why don't snakes suffocate with such large food in their mouth?", getting love nipped by a baby anaconda, laminating snake sheds, welcoming baby gecko #20, feeling the keeled scales of USA's largest snake, the gopher snake, struggling to gracefully hold the 50lb+ red tail boa, positive feedback from parents, sushi Tuesday, Interview, Zeno's birthdays and new friends Wednesday, center for sustainability inspiring tour on Thursday. I am lucky!