Extension News: June 2008 Archives

It rained last night. Anytime it rains in early June, we have to search the yard carefully before letting the dogs out, because early summer rain brings fearsome guests: female snapping turtles, intent on finding soft ground for burying their eggs. We’ve identified three separate individuals over the years. Two are huge, one merely large. How do I know they’re snapping turtles? What other turtle is eight to 14 inches long (some grow to 20 inches) and weighs up to 70 pounds, with a massive head and a long sawtooth tail? When you approach many turtles on land, they pull in their heads and legs and hide under their protective shell, but the snapper can’t do that. Instead, she’ll likely turn and snap. Approach with care! Her powerful jaws can sever a finger or toe.

Once I had to move a turtle from an area, because I was afraid she might hurt the dogs. I got a wheelbarrow and a shovel, intending to lift her gently into the wheelbarrow and transport her outside the fenced yard to an area with nice sandy soil. As soon as the shovel came near her, she snapped at it and held on. I actually lifted her up and into the wheelbarrow just through the strength of her jaws on the shovel. Some jaws!

As she drags her heavy body through the mulch, mother snapper leaves a clear trail through the yard. Periodically she’ll stop and dig a test hole. She needs to go deep to bury the 20 to 40 ping-pong-ball-sized eggs she’s carrying. I can’t tell you how many plants I’ve lost when a snapper has bulldozed through the garden, knocking over tomato plants, digging up corn stalks, or disrupting the young cucumbers. I guess she figures her kind were here long before I started vegetable gardening, so if she wants to check out the soil, she can.

Watching any turtle dig a hole is fascinating. Where we need shovels, turtles use powerful hind legs. A leg pivots and goes down, scooping up dirt, depositing it beside the hole. As the hole gets deeper, the female twists, one side down and out then the other, down and out. Half the turtle ends up in the hole before she’s satisfied with the depth.

Slowly she’ll lay the eggs, pulling her head inward as each egg is pushed out. When all the eggs are finally in the hole, she begins covering them up. Now the legs pull the soil back into the hole and tamp down: first one leg, then the other, dumping and tamping, dumping and tamping.
By this point, her energy is nearly gone. She’s traveled quite a distance from the pond or swamp where she lives, searched for the perfect spot, dug the hole, laid the eggs, and filled the hole back up.

Here’s the really amazing part: I’ve watched a snapper dig a hole and noted exactly where it is in relation to a landmark. Once she’s gone, I’ve headed out to the site but couldn’t find even a trace of a disrupted surface. How could she do that?

A snapper mother’s role is finished when the nest is buried. She doesn’t lurk nearby to watch the eggs and protect the young hatchlings, but leaves them entirely on their own. Mammals find many of the nests and relish the nutritious eggs. If the nest isn’t found, the eggs will hatch in August, and the young will either make their way to water or hide out until the following spring. Even when small, snappers are unmistakable­sharp claws on the feet, large head and long tail. Once I counted 18 over a half-hour period as they hatched, dug out of the ground, and made their way down the path.

Mother snapper’s goal now is to get back to the safety of the water. It takes great effort to haul her exhausted body over land so the journey takes her a long, long time. She’ll walk a short distance, then rest a while, then drag herself a little further on before resting again. Many times, she’ll have to cross roads to get back to the body of water she calls home. That’s where she’s most vulnerable. Cars do take the lives of many snappers.

Once back in her element, she’ll recover, feeding on fish, crayfish, reptiles, birds, small mammals, and plant material. When winter comes, she’ll hibernate in the muddy bottom or under a log or some submerged debris and wait until spring comes around again. Then when the early summer rains soften the soil, she’ll haul herself out of the water and start the journey again.

Maybe next year I should set up a sandbox. Do you think she’d use it?

By Susan M. Poirier, Master Gardener

A fist-sized American toad clambered awkwardly up the steep hill from the wetland to my garden, my oversized puppy having prodded the sluggish animal out of its daytime nap. I shooed the dog away and picked up the unhappy toad, which I impulsively called Mikey.

Mikey thanked me for the unwanted attention by relieving himself on me (warning: they do this a lot), but unsurprised and undaunted, I carefully placed him under a large broken clay pot that lay in two pieces near a leaky faucet, hoping I could lure him to work in my garden.

Mikey tried out both rooms of the duplex pot and then snuggled down in the damp soil to wait for the evening hunt, leading me to conclude that, like the '70s cereal commercial, “Mikey likes it!” Pleased with myself, I resumed gardening.

I’m particularly fascinated by toads and become attached to my small amphibian friends like Mikey, who seem friendly (or at least easy to catch), don’t bite, and don’t give you warts. Male American toads like Mikey (Bufo americanus) emit a long, musical trill to attract females for mating. The NH Fish and Game Department posts photos, information and recordings of the American toad (and other native frogs) on its web site. You’ll find some amazing sounds there, sounds you’ll realize you’ve heard many times but didn’t listen to or recognize as frogs and toads.

Closely related to frogs, toads like Mikey live in drier habitats and uplands and have stubbier legs with less webbing on their feet. Female toads lay long egg strings instead of the masses laid by frogs. Toads also condense their cycle of metamorphosis, minimizing the aquatic (egg and tadpole) portion of their lives, with a longer toadlet and juvenile toad stage.

Dogs and many other animals don’t usually bother toads (more than once anyway) because of the glands on the back of their heads that secrete a white milky (sometimes toxic) substance. When that doesn’t work, the toad might suck in air to blow itself into much a larger, more intimidating animal.

Snakes, apparently undaunted by either of these techniques, are said to eat many slow-moving toads, though I wish they’d work on the chipmunks in my garden instead.

The first toads of summer remind me that the cycle of renewal is upon us. I sometimes take the biggest and strongest breeding adults like Mikey from dangerous roadway areas into my garden, where they serve as allies in my annual battle against slugs and nasty bugs. Toads seem to like my garden, because some areas are shady, moist toad havens that grow slug-attracting plants like Hosta. These natural warriors dispatch slugs and other nasties in abundance.

Next to pollinators such as bees, wasps and hummingbirds, toads top my list of favorite garden buddies, coming out at night to hunt. Sometimes I’m lucky, and a female toad lays a long egg string in my water garden, the eggs hatching into tadpoles in a matter of days. The tadpoles then become toadlets, tiny and impossibly cute versions of Mikey, that some damp evenings I see scattering in all directions, each hopping frenetically towards new territory.

I imagine most of the toadlets perish, killed by cars or eaten by snakes and birds, but there are so many. Some will survive and prosper, some will carry on their heritage and become the mature toads that we know and love.

Maybe Mikey will turn out to be Michelle and lay eggs in my water garden again this year. Less than two months later, a toadlet army will be everywhere on rainy nights, making it impossible to navigate a car or even walk in a straight line without squishing some of the diminutive troops.

But some of the toughest and luckiest of summer’s soldiers will survive the journey to new territories, dispersing from the hatch to eventually overwinter by using their strong hind legs like shovels to burrow deep into damp soil. More friends for next year’s garden!

By Eileen Pannetier, Master Gardener

Weather-wise, it was a decidedly unpleasant day. Low clouds blocked all views of the distant mountains, while the chilling wind drove spitting rain through our hair and against our faces. We were at the shore of the lake to introduce a West Coast visitor to the fine art of fishing. We had a container of worms and an old rod and reel, but the wet wind numbed our fingers when we tried to thread a wiggling worm onto a hook.

We persevered. Finally, the worm and hook were dangling in the water, awaiting a hungry mouth. We waited with them, and waited and waited. Nothing seemed to be running except the wind.

Not far off, two ducks came in to land on the water. Unfortunately, they were too far away for me to identify them clearly. It wasn’t easy to pick out their markings. Why hadn’t I thought to bring along the binoculars? There was a quick flash of white. Hooded Mergansers perhaps? These are such lovely ducks. The males have white breasts with two black bars on each side and their black heads have fan-shaped white crests which they raise to entice the females. Add in brown flanks and you have one very attractive creature.

Suddenly from not far away we heard the call of a loon. “Listen!” we cried as the bird once again gave its haunting call. A few minutes later, the loon and a companion came into view. They are such stunning birds with their brilliant red eyes and all-over black and white coloration. Down into a deep dive went one bird, in search of the same fish we were seeking. A few minutes later, it popped up several yards away. The birds seemed to take turns hunting. Apparently they were having the same poor luck fishing that we were.

Suddenly, just off a jutting of land, I noticed a fin going around in circles. We decided to investigate as this was the closest we’d been to seeing a fish in nearly an hour. We scrambled down the rocks to move closer to the still visible fin. Straight down the fish’s head pointed as it swam in circles, and then the fish flipped to one side before moving to a new area. It wasn’t long before we saw a second fish doing the same thing. Our visitor was happy to actually see a couple fish in the water, but we knew that, with spawning in mind, these fish weren’t going to be tempted by any wormy bait. So, we simply watched and enjoyed this glimpse into nature’s way of creating the next generation of fish.

The cold and wet had now become distinctly uncomfortable. It was time to admit defeat and give up on the fishing. We trudged back to the car, consoling our visitor that next time would be better. On the drive home, we decided to take a detour to show him more of our beautiful area. We choose a spot with wide, mown fields and views of the lake and several islands.

Despite the low clouds, he could see enough to recognize that the surroundings were truly spectacular. The wind drove the lake water into small waves, while mist and fog alternately shrouded then revealed the islands. We sat in the car and talked about how special the lake is in all the seasons of the year: reflecting the beauty of the fall foliage, white with snow and dotted with bobhouses in winter, glinting with sunlight in spring and summer.

Suddenly, one of us noticed a movement over near the woods. Out walked two wild turkeys, a hen and a jake. Heads jerking out and in as they walked, they seemed totally unaware of us. What a treat to watch them.

The turkeys poked around in the short grass, searching for seeds and insects. They’ll eat just about anything. They’re so ugly that they are actually beautiful. I look for them whenever I pass a field, especially one where corn had been grown for they love to search there for food.

Sometimes in the summer when you are driving down a road, you’ll see a hen followed by a dozen or more young, then another hen. The little ones scurry to keep up, while a hen will cluck to them, “Hurry! Hurry!” Our two moved off over a rise and out of view.

It was time to head home. On the way, we counted up our haul:

Fish taken: none
Fish seen: two
Ducks seen: two
Loons seen: two
Turkeys seen: two
        
All in all, not a bad day of fishing.

By Susan Poirier, Master Gardener

The room was pitch black as I lay in bed searching the darkness outside my window for the momentary flash of light. As a child, my excitement at seeing the first fireflies of the summer rivaled the anticipation of waiting for Santa or the thrill of waking up to the first snow of the season.

Now, each year I am transported back to my childhood when I first spy lightning bugs gracefully dancing in the darkness of the backyard.

It never ceases to amaze me, that split-second burst of brilliance in which I think my eyes are playing tricks on me. I stop, stand stock-still, and wait for the next twinkle, then another over by the edge of the lawn and yet another higher up near the first flash.

My heart soars, and I run inside to alert my family and insist that, they too, come to watch the show. To me it’s as impressive as the Perseid meteor showers that we watch from our roof, because these lights are alive and that seems even more special.

As children, we spent most of June and July with our maternal grandparents. It was our favorite time of year, filled with the freedom that only comes when you’re young and the summer promises to last forever.

My two older sisters took special delight in the pursuit of fireflies on balmy June evenings, carefully capturing them in a jar with tiny holes poked in the lid. Once they’d collected enough flies, they would silently sneak upstairs to my grandparent’s bedroom. Gently they would slip their jars under the light summer sheets and unscrew the tops, releasing the bugs. Then they would turn off the lights and watch as the sheets lit up in a beautiful ever-changing light pattern.

Racing back to their own bed, they would huddle together and attempt to stifle their giggles when my grandparents discovered the “gift” my sisters had left them. Leaving their windows open usually meant that more mosquitoes entered than fireflies escaped.

Bioluminescence is the name scientists give to the ability of living creatures to use body chemistry to produce and emit light. There are two critical purposes behind the firefly light show. Fireflies (actually beetles in one of several genera) use their tail lights, or lanterns, to attract mates and to lure prey. Flashing in their society isn't only encouraged, but necessary for survival.

Males and females identify each other by the timing of their flashes. The pattern of the flash differs for each species, allowing members of that species to recognize each other. However, the females of the genus Photurus have evolved the ability to imitate the flash patterns of female Photinus (another genus of firefly), to attract Photinus males, whereupon she attacks and eats them. Because of this deceptive ability, Photurus females are often described as the femme fatales of the firefly domain.

By consuming a male Photinus, the female Photurus firefly gains both the nutrition from her prey's body and certain compounds (lucibufagins) it contains, which make her unappealing to certain predators such as the Phidippus jumping spider.

With such great survival mechanisms, you’d think that lightning bugs would outlast us all, but I’ve noticed fewer and fewer lightning bugs in my yard over the years. Scientists are concerned about this, too, and their research reveals light pollution as one reason behind their disappearance.

It seems that the artificial light we produce outside our homes at night confuses the fireflies and shuts them down. When they can’t tell day from night they tend to keep their lanterns off. When they stop flashing, the beetles aren’t attracting mates or their much-needed food sources.

Sadly, scientists predict that in certain parts of the country, lightning bugs may be gone in as little as a decade. One simple solution is to cut down on light pollution-but urban sprawl shows no signs of reversing itself.

Still, if you’re fortunate enough to live away from urban bright lights, try turning off your own outdoor lights. You’ll save money and reduce your carbon footprint. Then, when the weather turns warm, turn off your indoor lights, too, take a seat by the window and be patient. With luck, you’ll be rewarded with a beautiful light show that may transport you back.

By Susan Ferber, Master Gardener