Did You Know? The Cicadas Are Here!

by Jim Northrop

Most insects follow an annual cycle of birth, life and then death.  Seasonal changes in temperature often cue these insect life stages. However, a very noticeable exception to that rule is presently occurring.

Cicadas have emerged en masse, after 17 years in the ground. They are clambering into trees and singing a distinctive chorus that can be heard for miles because of their numerous voices. While there are many kinds of cicadas, these 17-year cicadas are a specific genus of cicada, called Periodical Cicadas (genus: Magicicada).

What makes this event so remarkable is that it results from 17 years of preparation. The now emerging army of Periodical Cicadas was born in 1996. Their mothers laid their eggs in the branches of trees. There they developed for a few weeks before hatching and heading for the ground. These larvae then squirmed into the dirt and spent the next 17 years sucking fluid from tree and plant roots.

Millions of cicada nymphs have now climbed from the ground in which they have spent nearly two decades. They will have morphed from wingless to winged creatures, and taken to the trees for their famously noisy courtship. The empty husks of the nymph-stage bugs are seemingly everywhere. Now, the newly emerged animals single-mindedly seek to mate and produce the next generation. And shortly after mating and after the eggs are laid, the adults will die. Surprisingly, cicadas barely eat a thing during their time above ground.

Their time in the sun is short, but their 17-year life span makes them the longest-lived insects known.

Cicadas will not emerge in everyone's back yard.  If there are no deciduous trees—trees that lose their leaves each fall, like maples, oaks and fruit trees—probably no cicadas will be seen. Pesticides, construction, extreme weather conditions, and tree removal are also factors reducing the incidence of cicadas. The overall emergence time for cicadas in a particular location typically is 4 to 6 weeks from the time the first nymph crawls from the ground, until the last adult dies.

Cicadas use a defensive strategy we could call "predator saturation." They reproduce by the millions in order to "fill up" the predators. The idea is that all the squirrels, birds, possums, snakes, lizards, raccoons and other predatory animals will become so full of cicadas that they tire of eating them. Then, just enough cicadas will escape and get to mate and reproduce.

Periodic Cicadas don't bother to escape when confronted, and that is because they do not have to escape. Since they emerge in such HUGE numbers, some members of their species are bound to survive no matter what. They can devote their limited energy and time above ground to calling and mating, rather than running away from each and every possible predator. This strategy may explain how an insect that neither bites nor stings, has managed to thrive.

Are cicadas locusts? No, true locusts belong in the same family of insects as grasshoppers. The confusion stems from the fact that both locusts and cicadas emerge in periodic swarms. But, locusts are far more destructive, destroying all plant life in their path. Cicadas do fly around trees and kill a few weakling branches here and there. They DO NOT kill flowers and would not damage shrubs and trees, unless the latter are young and immature. Cicadas do not damage tree leaves by chewing them as other insects do. Unlike grasshoppers and caterpillars, cicadas do not eat garden vegetables. They lack mouth parts that would enable them to chew.

Probably it is not a good idea to combat cicadas with pesticides. New cicadas will continually fly onto your trees from neighboring yards, making pesticides futile. Also, your pets could become poisoned from ingesting too many treated cicadas. Importantly, you will want to avoid the unintended collateral damage of killing honey bees and butterflies by using pesticides to disable cicadas. 

While cicadas in your back yard are a bit of a nuisance, remember that you are not going to see Periodic Cicadas again until the year 2030.

Did You Know? ...An Owl Adventure

By Jim Northrop, GSWA Volunteer

It was a stormy night in September, a few hours after sunset, and I was feeling hungry. I would need to search for my dinner, so I set forth. This was farm country in northern New Jersey. I did not expect to find my dinner any time soon, but I noticed some lights, and movement to the right, and I went in that direction. Suddenly, I was stopped and fell to the ground ---- I had carelessly struck a glass picture window on the side of a farm house.

Oh, I forgot to tell you.  I am an owl ---- humans call me a great horned owl, and I guess I am bigger than other owls in New Jersey.  I stand about 22 inches tall and have a wingspan of about 55 inches (that's about 4 1/2 feet). I am a bird of prey, so when I look for my dinner, I catch, kill and eat other small animals in order to survive. An owl killing and eating another animal is no different from a robin eating a worm or a gull eating a fish.

Hunting at night, I use my extraordinary vision and excellent hearing to locate my prey. My wide wings, lightweight body and unusually soft, fluffy feathers allow me to fly silently. My eating habits might put you off, but when I seize a rodent or other small mammal, I kill it with my powerful feet. If the prey is small enough, I swallow it whole. Otherwise, I tear it apart with my hooked beak.

I am told that my amazing digestive system assimilates the nutritious portions of the prey. Then the undigested parts (hair, claws, teeth, etc.) are regurgitated in the form of pellets and scattered on the ground.

One blessing I have is that all owls are protected by state and Federal regulations. It is illegal to kill or capture an owl. It is also illegal to possess an owl, living or dead, without the proper permits from both the U.S. Fish and Wildlife Service and the State of New Jersey.

I can say with confidence that owls pose no threat to humans. Adult owls will, of course, defend their territory and their young against any intruders, human or otherwise. However, humans do not always return the favor. Humans continue to pose a number of threats to owls:  we sometimes collide with their automobiles and their windows, or we consume the environmental contaminants they leave around.  They also destroy the critical habitat, the fields and forests, where we live and hunt.

But, let me take you back to that September night when I collided with the large glass window.  I fell to the ground because, it turned out, one of my wings was broken.  I felt so vulnerable, lying there helpless on the ground.  It was a very long and scary night for me.  But, at sunrise I heard footsteps. The farmer was outside and about to do his chores, when he noticed me and came over for a closer look.

The farmer, being experienced with animals, saw immediately that my wing was broken ---- perhaps it was the bone fragments poking through the skin of my wing. He knew what to do, and went to the barn to bring back a blanket.  He placed the blanket over me carefully, scooped me up and set me in a large cardboard box, which he placed in the cab of his pick-up truck.  Then he told his wife he was headed to The Raptor Trust in Millington, at the edge of the Great Swamp, to find some help for me.

Fortunately, The Raptor Trust staff were able to accommodate. They began their care by getting an X-ray of my broken wing.  Sure enough, there were breaks in two places, so they pinned the bone fragments back into place. I was encouraged by their kind manner ---- perhaps I would fly again, after all.  The staff also recognized the damage to the soft tissue of my wing (muscles, blood vessels, etc.). Circulation to the wing could well have been compromised, preventing it from healing. Only time would tell. I would need to be patient.

By mid-November the bones were starting to knit together.  It was time to remove the pins that had been put in to hold the bone fragments together.  The staff at The Raptor Trust seemed happy with my progress, but the injured wing was tight, unable to extend fully.  I knew I wouldn't be able to fly like that.

Progress was slow, but by February I was flying short distances. Then they decided to move me to a bigger flight cage to see what I could do. Even though I had flown a bit, it still took time to regain the strength and stamina I had lost while recuperating.  They put me in the largest flight cage at The Raptor Trust, and by mid-April I was flying like an eagle. I was ready to go home.

Before release, I was fitted with a U.S. Fish and Wildlife Service band. The metal band will remain on my leg for the rest of my life. If humans ever encounter me again, it can easily be determined where and when I was banded. I overheard that banding birds is important because it allows for the study of bird movements, survival and life span.

The folks at The Raptor Trust didn't just open the cage and shoo me away. It was decided to transport me back to the farm where I had gotten into trouble because, after all, that is my home. After the drive, they removed me from my transport crate and released me into the air. It was great to take a few powerful flaps and soar over familiar territory. I think I even saw a farewell wave from my Raptor Trust friends as I soared away ----- home again.

Did You Know? About Canada Geese

by Jim Northrop, GSWA Volunteer

Sometimes, fall walks with my dog surprise me. Last October, we walked along the edge of a local golf course. It was a beautiful, sunny day, but there were few golfers about. At a turn in the path, my dog saw something interesting and tried to take me to it. After a few steps, I saw that she had found a Canada goose resting in the long grass ----- the golf course “rough.” I stopped the dog, but the goose looked at us and did not move. Then, I swear, the goose spoke to me!

“I have been in flight for days, coming from mid-Ontario. I am not so young any more, and I don’t seem to have the energy of my youth. My mate was killed by a hunter last year, my goslings (her babies) are grown and doing their own thing, so here I am all alone.”

Who would not feel some pity at this story? The goose explained that she was part of a flight of 30 or 40 birds whose destination was Chesapeake Bay. She was glad they were not aiming to spend the winter in Mexico, as she was sure she did not have that distance in her.

“Why did you stop here?” I asked. They liked the available long grass in the rough, and the nearby water trap which were nicely placed within an easy walk. She felt safe, she said, because the only predators were occasional dogs, but she noted that even my dog was on a leash, as most “golf course dogs” seemed to be. This is a beautiful and peaceful place, she told me, except for the day when I was nearly hit by a golf ball, which brought several old men on golf carts to chase me from my nest. She said she realized they were looking for their golf ball, not for her. They had soon found the ball and moved on to complete their game.

I asked my new friend about her family.  Her male goose had been a wonderful father, she said. He would stand tall and guard her while she sat on a nest of eggs. What I would call the incubation period, in which the female sits on and warms the eggs while the male stands guard, lasts for 24 to 28 days after laying, she told me. She remembered how, after the eggs hatched, she and her mate would lead their goslings in a line, usually with one parent in front, and the other at the back. While protecting their goslings, she recalled, they often had to violently chase away threatening nearby creatures ---- anything from small blackbirds to large humans, who might approach. She and her mate would warn intruders by giving off a hissing sound and then attack with bites and slaps of their wings, if the threat did not retreat or actually seized a gosling. “Happily, that never happened to us,” she said.

She continued, “The goslings enter a ‘fledging’ stage any time from six to nine weeks of age. They do not leave their parents until after the spring migration, when they return to their birth place. Once they reach adulthood, she told me, Canada geese are rarely preyed upon (aside from the threat of humans). But the geese must be on the watch for coyotes, gray wolves, snowy owls, the golden eagle and the bald eagle.”

She surprised me by noting that goslings are able to swim immediately. The male and female geese both accompany their babies during their swims. She was proud to report that goslings can dive and swim for 30 or 40 feet underwater, and they eat almost continuously to attain growth for their first migration flight. The mature goslings, now ready for migration, learn the migration routes from their parents and follow the same route in subsequent years.

My friend stopped talking for a moment, and reflected that she had not heard of predators attacking her goose friends in New Jersey ---- except for the humans!  I had to tell my feathered friend that not all humans are a threat ----- many are friends, and keenly anticipate searching the sky in the spring or autumn at the first sound of honking Canada geese, flying by in their V-shaped formations. She said that was encouraging, and did I know that the front position is rotated among several birds since flying at the front consumes the most energy?

The sun was setting, and my dog and I were ready to return to our “nest” for dinner. We were sorry to leave our new goose friend, but she advised us she would be OK, and probably would resume flying south at sun rise.  We wished her safe travel.

Although often disparaged as a nuisance, we gained from this Canadian goose a new respect for these hearty birds, hoping that as long as they would stay away from airplanes in flight, they would continue to grace our open spaces.

You May Be Living With a Few Energy Thieves!

By Jim Northrop, GSWA Member

Electricity use by power-hungry household consumer electronic devices is rising fast. For example, the very popular, new flat-panel televisions have turned out to consume more electricity than some refrigerators. And then there are personal computers (how many do you already have in your house?). What about iPods, cell phones, game consoles and digital clocks? The New York Times reports that Americans now have as many as 25 consumer electronic products in each household, compared with just three in 1980.

Appliances like refrigerators are covered by mandatory efficiency rules specifying how much power each category of appliance may use. The New York Times claims that today's new refrigerators consume only about 55% of the power consumed when the standards took effect. Further, the Times says that a new clothes washer today is nearly 70% lower in energy consumption than a new unit in 1990. But, don't relax -- now we have a growing, off-setting challenge, which may eventually cancel out the energy savings of appliance standards. Makers of consumer electronic devices have been successful in resisting the application of such energy efficiency standards to their products.

Most Consumer Electronic Devices Never Sleep
One way this is a different kind of challenge, is that many modern consumer electronic devices cannot be entirely turned off. Even when not in use, they draw electricity while they wait for a signal from a remote control, or wait to record a television program.

Of course, a single-minded person can find many of these electronic devices around the house, and turn them off when not in use -- but, in most homes there are so many of them! And some family-member users are particularly difficult to "police." There are some ways to let the problem take care of itself, however, if one takes the time to set it up properly. For example, plug the computers and entertainment devices into "smart" power strips. The strips turn off when the electronics are not in use, cutting power consumption to zero.

Another difficulty in controlling power wasted by consumer electronics devices is that many products now require large amounts of power to run. Flat-screen TV is perhaps the biggest offender. As liquid crystal displays and plasma technologies replace the old cathode ray tubes, and as screen sizes increase, the new televisions need more power than older models did. How often is the TV left operating when the viewers have all left the room?

Until energy usage by consumer electronic devices is better regulated, each of us must be more vigilant. While energy waste per device may seem trivial, it adds up fast.

Inspired By the Great Swamp, Marcellus Hartley Dodge Became the Quiet Leader Who Saved It

By Jim Northrop, GSWA Member

The Dilemma: Nature or Technology?
In 1959, it was discovered that the Port Authority of New York and New Jersey was developing plans to acquire the land we call “The Great Swamp,” and there to construct a "jetport." Their aims were ambitious, and their jetport would be one of the largest in the world. Many residents of the area were up in arms, but they were opposed by powerful pro-business interests.

In time, however, a defensive strategy emerged -- transfer as much land as possible from strategic places in the middle of the Great Swamp, to the Federal Government, for use as a wildlife sanctuary. It was believed this would keep the land out of the reach of the Port Authority, and thus defeat the jetport plan.

A Captain of Industry Becomes Engaged In Open Space Issues
After 1907, when M. Hartley Dodge married Geraldine Stillman Rockefeller, youngest daughter of William Rockefeller, brother of John D. Rockefeller and a founder of Standard Oil Company (NJ), the young couple became among the largest landowners in the Great Swamp area. It was known that Dodge was a generous donor of land to the newly-formed Morris County Park Commission. In 1957, Mr. Dodge and others donated over 50 acres to the Morris County Park Commission for Loantaka Park, the first link in the Loantaka Brook Reservation. But the actual extent of his concern for saving the Great Swamp was not revealed until later.

Dodge was the retired Chairman of the Board of the Remington Arms Company and had served for many years as a Director of the Equitable Life Assurance Society, and the Delaware, Lackawanna & Western Railroad. He was also a member of various other boards. He lived in Madison Borough and made substantial contributions (usually anonymously) to local causes. Born in 1881, “Marcy” Dodge was a friend of the rich and famous, and was descended from a founder of the Phelps-Dodge Corporation.

How to Recognize a Truly “Green” Home

By Jim Northrop, GSWA Member

I find it hard to go to a hardware or home improvement store without being almost overwhelmed by the many products and new materials competing for attention as a “must have” step toward becoming environmentally “correct.” How to make my home into a “greener” place has become an ongoing learning process for me.

Having a “green” home is not just a fad. A “green” home uses less energy, water and natural resources, creates less waste, reduces greenhouse gases, and is healthier for the people living inside, compared to a standard home.

A home can be built “green,” or one can make it “green” later. A “green” make-over can happen all at once, or it can be a gradual process. But what it all comes down to, I think, is a new way of thinking and a new way of living. Commercial developers and building owners are perhaps the most important part of the equation. Architects and engineers have traditionally taken their cue from clients regarding a building’s environmental performance. The standard practice has been to focus more on construction costs than long-term operational costs. With a typical building lifespan of 75 years, however, maintenance and other ongoing expenditures often prove to be much greater than the initial costs. This makes energy efficiency, for example, an excellent investment over time.

What Shade of “Green?”
With so many voices advocating different ways to get to “green,” I started looking for some standards. I found that the U.S. Green Building Council, a non-profit trade organization, has been a pioneer in defining standards for “green” building design, construction, operation and maintenance, by offering a LEED certification for those building projects which qualify. “LEED” stands for “Leadership in Energy and Environmental Design.” Importantly, it is homes and other building PROJECTS which may be certified, not builders; but any builder is eligible to register a project with LEED. This is a voluntary rating system, with inspections by qualified third parties, and is appropriate for a wide range of “green” situations, including “green” homes, affordable housing, mass-production homes, custom designs, stand-alone single-family homes, duplexes and townhouses, suburban and urban apartments and condominiums and lofts in historic buildings.

Apparently, I was not the only one doing some learning! This year the latest version of the U.S. Green Building Council’s LEED building performance certification system will begin requiring the submission of building operation performance data on a recurring basis and as a pre-condition to certification. USGBC had found too often a performance gap between the energy modeling done during the design phase and what actually happens during daily operation after the building is constructed. So, ongoing monitoring and reporting of data will be required. It is thought that this will improve building performance by bringing to light external issues such as occupant behavior or unanticipated building energy use and water consumption patterns.