Wildlife And Water Health Feature In Upcoming Environmental Speakers Series

Great Swamp Watershed Association announces four events in its Spring 2013 Breakfast Briefing Series.

The Great Swamp Watershed Association (GSWA) is pleased to announce the schedule of speakers for its Spring 2013 Breakfast Briefing Series.  This season’s highlights will include an in-depth discussion of bats and bat conservation efforts, as well as a wide-ranging report on the cleanliness of water flowing through the Great Swamp and into the Passaic River.

On Tuesday, March 12, GSWA welcomes Jennifer Bohrman, lead biologist for bat research, education, and outreach at the Great Swamp National Wildlife Refuge.  Ms. Bohrman led a wild bat inventory and monitoring effort at the Refuge during the summer of 2012 and frequently presents to local communities on the topic of bat conservation.  In addition to offering some insight into the impact of the infamous White-nose Syndrome on bat populations in Great Swamp, she will provide some proven tips, techniques, and suggestions suitable for protecting bats in the back yard.

Tuesday, April 9, Dr. Meiyin Wu, Associate Professor of Biology and Molecular Biology and Director of the Passaic River Institute at Montclair State University, stops by to offer some perspective on water issues affecting communities downstream of the Great Swamp along the Passaic River.

Dr. Leland Pollock, Professor Emeritus of Biology at Drew University, visits on Tuesday, May 14.  For many years Dr. Pollock has studied macroinvertebrates—a catch-all term for bugs, worms, mollusks and other small, spineless creatures—living in the streams that feed Great Swamp.  Study findings from his annual survey of these wildlife populations adds to an understanding of long-term trends within the local environment and provides clues about the relative cleanliness of water passing through the Great Swamp region.  This event will take place at the Helen Whitney Case Auditorium at the Madison Public Library, 39 Keep Street, Madison, NJ.

On Tuesday, June 11, GSWA’s Director of Water Quality Programs Laura Kelm will present findings from the organization’s recent State of the Streams report on water conditions found throughout the Great Swamp Watershed region.  This extensive scientific research project engaged GSWA staff and volunteers in a year-long analysis of more than five years of chemical, visual, and biological water quality monitoring data taken from the watershed’s five major streams: the Upper Passaic River, Black Brook, Great Brook, Loantaka Brook, and Primrose Brook.  Results from the analysis will be used to establish historic trends for cleanliness of water flowing through local waterways; and help the organization identify emerging environmental conservation and restoration needs.

Most GSWA Breakfast Briefing events take place between 8:00 a.m. and 9:30 a.m. at the organization’s office located at 568 Tempe Wick Road in Morristown, NJ.  Alternate event locations are noted, if applicable.

GSWA created the Breakfast Briefing Series to help area residents stay informed about community environmental issues without taking valuable time away from work or family life.  Presentations are kept brief, focus on current environmental topics, and minimize overlap with most traditional business hours.

Coffee, tea, and a continental breakfast are always served free of charge.

Advanced registration is requested. Please register online at www.GreatSwamp.org or by calling 973-538-3500 x22.

Environmental Curiosities: Getting Acquainted With Climate Change in NJ

Climate change is on our minds. Is it on yours?

GSWA has hosted three informational events about the topic of climate change over the past year. And instead of focusing on melting of polar ice caps or the vagaries of flood or drought conditions in other far-flung parts of the world, we have tried to keep our discussions local.

In the spring of 2012 we invited Professor Anthony Brocolli from Rutgers University to talk about climate change and its effects on weather patterns here in New Jersey.  We learned much more about the upward trend in average temperature in our state, as well as which weather events could and could not be reliably linked to this trend.

Later in the fall, we brought Professor Joseph J. Seneca, also from Rutgers, in to discuss the economic impact of climate change and changing weather patterns in our region. For better or worse, this discussion took place just a few short weeks after Superstorm Sandy—a hurricane that delivered devastation to our own back yards and sounded climate change alarm bells all over the world. That talk helped us better understand the economic rationale for addressing global climate change issues, and how New Jersey's own options for climate intervention might evolve.

Last month, a third Rutgers professor, Dr. Ken Miller, stopped by to help us understand how climate change and progressive sea level rise along New Jersey's coast not only exacerbated the effects of Hurricane Sandy, but also threatens future changes to New Jersey's weather experience and the state's natural geography.

We want to keep this discussion moving forward. That is why this month's Environmental Curiosities is about giving you more climate change information to consider. While the articles listed below may not specifically mention conditions in New Jersey, the ideas and situations they relate could easily apply to us.

Read these articles from Science Daily and tell us what you think. 'Like' our Facebook page—facebook.com/GreatSwamp—and leave a comment on our timeline. Or, send an email message to GSWA Communications Director Steve Reynolds at sreynolds@greatswamp.org.

Articles

• “Climate Change Beliefs of Independent Voters Shift With the Weather” (Science Daily) http://www.sciencedaily.com/releases/2013/01/130124122934.htm
• “Cities Affect Temperatures for Thousands of Miles” (Science Daily) http://www.sciencedaily.com/releases/2013/01/130127134210.htm
• “Climate Change Projected to Alter Indiana Bat Maternity Range” (Science Daily) http://www.sciencedaily.com/releases/2013/01/130128191233.htm. Note: The Indiana bat is native to parts of the Great Swamp and is a federally endangered species.
• “Climate Change Impacts to U.S. Coasts Threaten Public Health, Safety and Economy, Report Finds“ (Science Daily) http://www.sciencedaily.com/releases/2013/01/130128143010.htm
• “Groundwater Depletion Linked to Climate Change“ (Science Daily) http://www.sciencedaily.com/releases/2013/01/130128104747.htm
• “Spring May Come Earlier to North American Forests, Increasing Uptake of Carbon Dioxide“ (Science Daily) http://www.sciencedaily.com/releases/2013/01/130129171427.htm
• “New Study Highlights Impact of Environmental Change On Older People“ (Science Daily) http://www.sciencedaily.com/releases/2013/01/130131084424.htm

Did You Know? About Red-tailed Hawks

by Jim Northrop, GSWA Volunteer

It was a black speck in the sky, gradually coming closer, and then I saw that it was a bird gliding gracefully, effortlessly, circling above me. It was a red-tailed hawk, the most common hawk in North America. Years of observation have shown that red-tailed hawks can easily mold themselves to any surrounding, but these birds prefer a habitat that is open. Hawks usually inhabit places like deserts and fields, perhaps to make it easier to find prey. They also like to have high-perching places nearby from which they can watch for prey.

Red-tails are known as very able hunters. They are widely reputed to have visual acuity several times that of a normal human being. In fact, hawks can see a mouse a half mile away. This is due to the many photoreceptors in the bird’s retina, an exceptional number of nerves connecting these receptors to the brain, and a small indented area of the retina which magnifies the central portion of the visual field. Hawks also see in color.

A fledgling hawk is fed by its parents until it leaves the nest for good. It will leave its parents’ nest as early as six weeks old. As the hawk grows older, it begins to act on its ancestral instinct to hunt for itself.

While other birds of prey like falcons use their mouths to kill their prey, red-tailed hawks both catch and kill prey with their claws, or talons. They also use their talons dismember a kill before swallowing it. A hawk’s preferred time for hunting is usually just before night fall, when daylight begins to lessen.

Even though red-tailed hawks are known as being a violent predator, this bird actually has a peaceful side. The hawk’s main mode of transportation is flight. When it flies, the hawk flaps its wings rapidly, and then uses that momentum to glide smoothly and gracefully through the air. Hawks typically move at 20 to 40 miles per hour.

Red-tails also are known for their unusual mating practices. The method this bird uses to reproduce is different from that of most other birds. The male and female will fly together up into the air in a circular motion. Once the two get to a certain height, the male will dive toward the female and then they will rise back to the height again. The two birds will repeat this until finally the male latches onto the female and they begin to free-fall down to earth.

Red-tailed hawks are monogamous and will keep the same mate their entire lives. In one year, a female hawk will lay about five eggs. Both the male and the female will watch the nest and take care of the eggs for about a month, until they hatch. Males and females also create their nests together, and will improve it together during mating season. One wonders if members of the hawk family may be mimicking some members of the human family.

A red-tailed hawk’s diet is very predictable, in that it includes a variety of small animals. However, most hawks are opportunistic feeders and they feed on anything they can catch. Some of these small animals may include snakes, lizards, mice, rabbits, squirrels, and any other type of small game that is found on the ground. More specifically, hawks like to eat smaller birds like doves, and bugs like grasshoppers and crickets.

The red-tailed hawk is protected under the Migratory Treaty Bird Act. This covers their residence in the United States, Canada, and Mexico. They do not have low population numbers at this point, but many people believe that without such protection their numbers would be low.

Hawks also provide us with a metaphor for our political life. When talking about politics, some people use the term “war hawk,” or simply “hawk” for short. This refers to someone favoring war in a debate over military action. “War hawks” are the opposite of “war doves.” The terms derive from the fact that hawks are predators which attack and feed on other animals, whereas doves mostly eat seeds and fruit, and are historically a symbol of peace.

Primrose Farm Saved!

After five years of intense negotiation and advocacy, the 113-acre Primrose Farm in Harding Township has been preserved as open space.  Ownership of the land was officially transferred to the Harding Land Trust on December 27, 2012.  The Great Swamp Watershed Association (GSWA) and other Primrose project partners were on hand for the final closing.

In 2008, GSWA was the first community stakeholder to recognize the intrinsic natural value of Primrose Farm.  Upon learning that the entire property was slated to become a large residential subdivision, GSWA Executive Director Sally Rubin quickly approached The Trust for Public Land and recommended Harding Land Trust as the ultimate land owner.

The new conservation acquisition will spare Primrose Farm from the bulldozer and work to maintain the ecological balance of the wetlands, forest, meadows, and steep slopes it encompasses.  This is good news for native plants and wildlife like the endangered Indiana bat, which relies on Primrose’s mix of woods and fields to provide summertime roosting and feeding grounds.  It’s also good news for all those who believe that clean water is an essential community resource.  Open spaces like Primrose Farm play a critical role in filtering and retaining the water that falls to Earth during storms.  Our communities rely on them for everything from maintaining clean drinking water supplies, to mitigating floods and droughts.

GSWA contributed $200,000 toward the purchase of Primrose Farm through a grant from the New Jersey Department of Environmental Protection’s Green Acres Program.  The organization will fulfill its responsibilities as a co-owner by identifying and organizing environmental stewardship activities on the property, and by using the entire site as teaching tool for its many environmental education programs.

Primrose Farm is now free and open for public use.  The Township of Harding has retained 16 acres of preserved land adjacent to Barrett Field for future expansion of that park.  Over time, the remaining 97 acres will be made available for hiking, cross-country skiing, bird watching, horseback riding, and other passive recreational activities.

Read the press release issued by The Trust for Public Land. [release no longer available]

Congratulation to GSWA’s members and the people of Harding for wholeheartedly supporting the conservation of Primrose Farm!

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.

Did You Know? ...About Spruce Trees

by Jim Northrop

For many American homes, the centerpiece of Christmas decoration is the Christmas tree, often a spruce tree, cut locally. Year-round, spruces are trees ornamentally popular with landscapers. They are admired for their all-seasons green color, and their tidy symmetrical growth profile. They have dense branches, but they are easy to decorate.

We should know that the spruce tree has more talents than just looking pretty. Spruce is very useful as a construction wood. It has many uses as lumber, ranging from general construction work, to crates, to highly specialized uses in wooden aircraft and as a "tonewood" in many musical instruments (including guitars, mandolins, cellos, violins and the soundboard at the heart of a piano, and the harp. The Wright Brothers' first aircraft was built of spruce.

Spruce is one of the most important woods for paper making, as it has long wooden fibers which bind together to make strong paper. Spruces are commonly used in mechanical pulping as they are easily bleached. Spruces are cultivated over large areas as pulpwood.

Interestingly, the fresh shoots of many spruces are a natural source of vitamin C. Captain Cook made alcoholic sugar-based spruce beer during his sea voyages in order to prevent scurvy in his crew. The leaves and branches, or the essential oils, can be used to brew spruce beer.

Native Americans in New England took the sap to make a gum which was used for various purposes, and which was the basis of the first commercial production of chewing gum. Also, the resin of spruce trees was used in the manufacture of pitch, at least until petrochemicals were found to be better for this purpose.

We have many varieties of spruce trees in the Great Swamp Watershed. Sadly, many of them were damaged or destroyed recently by Hurricane Sandy. The root systems of spruce trees are often quite shallow, making them quite susceptible to high winds. Their graceful presences will be missed for a long time, as it will take decades for new growth to fully replace them.

Editor's note: Some spruce trees, like the Norway spruce (Picea abies), were introduced to North America from Europe, and are now considered invasive species. As they invade an area, the Norway creates a new habitat that few native plants can tolerate. The soil surrounding stand of Norway spruce often becomes acidic and devoid of many important nutrients. Shade canopy also becomes very dense, preventing light from reaching native plants close to the forest floor.

Thankfully, homeowners and landscapers can avoid perpetuating the spread of invasive spruces by choosing to plant native spruce species instead. The red spruce (Picea rubens) is one of these native species. Its natural range stretches from the Canadian Maritimes through the Appalachian Mountains to western North Carolina. The red spruce thrives on moist, sandy loam, and also on dry rocky slopes. These trees can reach heights of 60 to 80 ft.

Volunteer Use Thanksgiving Weekend to Give Back to GSWA

by Hazel England, Land Steward and Director of Education and Outreach, GSWA

Some came to connect with family and give back to the watershed by working together.  Some came to catch a break from family after the long Thanksgiving holiday; others because they are longtime members and volunteers, or because they were offered extra credit by savvy Environmental Science high school teachers.  Some even came for the coffee, hot chocolate, and donuts!  Whatever reason, a lot of volunteers  turned out on Sunday, November 25 for an outdoor workday at the Great Swamp Watershed Association’s Conservation Management Area.

Check out photos from our workday event on Flickr!

Once again our volunteers re-created a one-mile trail first laid out in early 2011.  It’s been repaired three times now; once after Hurricane Irene flooding devastated it, again after the losses from the 2011 Halloween snowstorm blocked it, and now following Superstorm Sandy.

More than 30 adults, teenagers, and kids spent a cold Sunday working in crews.  Each crew was headed by a chainsaw expert, and included some strong muscles for moving large chain-sawed logs.  The rest of each team was composed of support workers who raked trails free of downed sticks, branches, and fallen leaves.    Many of the logs the crew cut up were used to edge and delineate our CMA trails, or piled to make giant brush piles which other volunteers will clear away at future workdays.

A few volunteer groups worked to remove felled trees from multiple points along the 7,500-foot deer fence that encloses 28 acres of the CMA.  Blow-downs from Sandy breached the seven-year-old fence in several places, and both temporary and permanent fence repairs were required after much of the wood was removed.  Some truly giant trees subsumed stretches of fence more than thirty feet long.  In these spots, where volunteers could not venutre and the fence remains pinned to the ground, hungry deer now have free reign to decimate all of the protected native vegetation GSWA has been trying to restore.  Scores of fresh hoof prints inside our fence perimeter testify to this particular problem.

There were a few other places where our ruined fence could only be pulled up off the ground and onto temporary supports.  GSWA will need an emergency infusion of cash to purchase new permanent support posts, and entirely new fencing that is not riddled with large, deer-sized holes.

Many of our most faithful volunteers showed up to work.  There were also many new faces joining us thanks to a last-minute appeal for volunteers distributed by local media outlets.  Regulars and first-timers worked side by side, and it was truly humbling for me as GSWA’s land manager to see so many people giving back to an open-space property that serves so many local communities.

Now that much of the damage wrought by Superstorm Sandy has been repaired, we hope that you and many others will visit and take a walk along our newly restored and opened trail system.  As you stroll along, check out all the fresh sawdust—a clear sign of all the busy beavers who worked so hard Thanksgiving weekend to the benefit of all.  Words cannot express how grateful I am for all our committed volunteers!