Ashland Nature Center

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By Joe Sebastiani, Ashland Nature Center Manager

Delaware Nature Society graduated fourteen “Certified Naturalists” in December, awarding those who successfully completed the year-long Naturalist Certification Series and the associated field journal.  In the past 12 years, over 300 people have taken this class which focuses on gaining a foundation for the study of nature in Delaware.

The Naturalist Certification class visits Teardrop Pond in Blackbird State forest with Jim White, Herpetologist and Delaware Nature Society Director of Land and Biodiversity.

Our graduates this year include: Jen Smyth, Suzanne Blair, Noreen Cambell, Brooke Cherry, Ted Gatanis, Lana Glass, Bea Kaplan, Laurie Linton, Emily Magnani, Christen Majewicz, Diane McGovern, Katie Pollock, Kayla Krenitsky, and Tere Schubert.  Delaware Nature Society congratulates them on their attendance and devotion to completing the field journal!

The first field trip of the year was to Coverdale Farm Preserve to study local mammals.  Register for the 2019 class, which begins on March 21st!  Photo by Noreen Campbell.

Students attend lectures and field trips revolving around 8 topics which include the study of: Mammals, Terrestrial Ecosystems, Reptiles and Amphibians, Birds, Wildflowers, Insects, Trees and Shrubs, and Aquatic Ecosystems.

The 2019 Naturalist Certification Series is ready for registration!  Here is a flyer to review about the class or send to your friends.  If you are a school teacher, by completing the class, you qualify for 60-hours of inservice credit.

A student in the Naturalist Series holds a Northern Pine Snake in the Herpetology lecture. Photo by Jim White

In one year, you will gain experience with tracking mammals, wade into a wetland at night in search of frogs, learn how to compare the ecology of different forests, evaluate stream ecological health, identify trees, shrubs, and wildflowers, understand various insect orders and their role in the environment, and band birds with an ornithologist.  In the process, you’ll make new friends who are interested in the outdoors, botany, wildlife, and the environment.  We hope you can join us for the 2019 Naturalist Certification Series.

In the meantime, here are some “Naturalist Quotes” for you to ponder and enjoy…

“We are all meant to be naturalists, each in his own degree, and it is inexcusable to live in a world so full of the marvels of plant and animal life and to care for none of these things.” ~ Charlotte Mason

“Since we humans have the better brain, isn’t it our responsibility to protect our fellow creatures from, oddly enough, ourselves?” ~ Joy Adamson

“Happy indeed is the naturalist: to him the seasons come round like old friends; to him the birds sing: as he walks along, the flowers stretch out from the hedges, or look up from the ground, and as each year fades away, he looks back on a fresh store of happy memories.” ~ John Lubbock

“Even the lifelong traveler knows but an infinitesimal portion of the Earth’s surface. Those who have written best about the land and its wild inhabitants…have often been stay-at-home naturalists…concentrating their attention and affection on a relatively small area.” ~ Edwin Way Teale

“The clearest way into the Universe is through a forest wilderness.” ~ John Muir

“Delight itself, however, is a weak term to express the feelings of a naturalist.” ~ Charles Darwin

By Jim White: Senior Fellow for Land and Biodiversity

It’s not every day that a new species of animal is found in Delaware. In fact, it is very rare indeed. However, in the summer or 2015 Adam Mitchel, a PhD candidate at the University of Delaware did just that. While collecting insects in a meadow at the Ashland Nature Center for his PhD research project on the effects of invasive alien plants on native insects, Adam found several insect specimens that he could not identify.  After examining them under a microscope in his lab he could only identify them as insects belonging to the Insect Order Thysanoptera commonly called Thrips (both the singular and plural of the noun has an (s). The Order Thysanoptera are minute insects with reduced wings, most species being around 1mm long. All but a few use sucking mouth parts to feed on the stems of plants. Several species are considered pest as they can damage crops and other plants. However, the vast majority of the 6,000 or so species are not pests to humans and are valuable members of the food chain.

This species of Thrips, new to science, was discovered at the Ashland Nature Center by entomologist Adam Mitchel. It has no English common name, but scientifically it is called Konothrips polychaeta.  Photo courtesy of Dr. Mitchel, from Goldarazena et al. (2017).

These tiny insects are not often studied unless they are considered pests and information on the many non-pest species is limited. Lucky for Adam, a professor from Belgium, Dr. Arturo Goldarazena…an authority on Thrips, was visiting the University of Delaware. Adam approached Dr. Goldarazena and asked if he would look at some of the Thrips specimens that he collected.  It did not take long for the professor to realize that he had never seen some of the specimens and declared that Adam might have discovered a new species. Adam agreed to give Dr. Goldarazena the specimens to study back in Belgium.  After an exhausting investigation the new species was described and published in Goldarazena et al. (2017). Its official scientific name is Konothrips polychaeta which loosely translates to “hairy tenacious woodworms”.  At this time, there is no common English name for this new species of Thrips. However, I propose to call it Mitchell’s Thrips.

Andropogon virginicus is the host plant for the newly discovered Thrips. Is the new species found wherever this plant exists??? Photo courtesy of Dr. Mitchel, from Goldarazena et al. (2017).

Finding a new species of animal or plant is a dream for biologists – finding them right under our noses in places like Ashland is even more exciting. Adam found the new species inside the flowers of the broom-sedge, Andropogon virginicus but he believes that Konothrips polychaeta probably feeds and breeds on other grasses and sedges that are abundant in the meadows and marshes at the Ashland Nature Center and beyond. These meadow and marsh habitats have been restored and maintained at several of Delaware Nature Society sites as part of the land and biodiversity management program. The program is dedicated to the conservation and preservation of native species and their habitats.

Dr. Adam Mitchel is a native Delawarean and discovered the new species of Thrips while he was a PhD candidate at the University of Delaware. Photo courtesy of Dr. Mitchel.

Dr. Adam Mitchel is a native Delawarean. He attended St. Marks High School and received his undergraduate degrees at the University of Delaware in Wildlife Conservation, Entomology, Plant Protection, Agriculture and Natural Resources (quad majored), and earned his master’s degree in Fish and Wildlife Management at Montana State University. Adam returned home to University of Delaware to obtain a PHD in Entomology and Wildlife Ecology (concentration: Entomology) at the time of the discovery of the Thrips. Adam is now employed as an Assistant Professor of Entomology at Tarleton State University in Texas.

Reference:

Goldarazena A, Mitchell AB and T. Hance (2017) Konothrips polychaeta sp.n. from Delaware, North America, with a key to the three species of this genus. Zootaxa 4341: 445-450.

Story and Photos by Joe Sebastiani, Ashland Nature Center Manager

What happens on a Delaware Nature Society Eco-trip? This spring’s adventure to Montana and Yellowstone featured lots of Black Bear, Grizzlies, Bison babies, over 150 species of birds, and world-class scenery. Throw in a few overnights in haunted hotels, cute mountain towns, and great food, and you have the recipe for an eco-trip to remember for a lifetime.
Forrest Rowland from Rockjumper Birding Tours led the trip. Forrest leads groups around the world, but lives in Montana. Joe Sebastiani, Ashland Nature Center Manager, accompanied the Delaware Nature Society group to experience one of America’s most wild and beautiful areas.  Many fans of the Ashland Hawk Watch know Forrest as the first Hawk Watcher during our 2007 inaugural season.  Now he is in charge of New World Operations for Rockjumper, and a highly sought-after guide.

Richardson’s Ground Squirrel looks like a pint-sized Prairie Dog. This one is barking at our group!

Our trip started in the short-grass prairie ecosystem around Billings, and focused on finding the birds of the region.  Many prairie species are declining, and some of the rare ones take inside knowledge of where to find them.  Luckily, Forrest lives in the area, and is tuned-in to where pockets of decent prairie habitat remains that supports birds.

Some of the highlights include watching the breeding displays Sprague’s Pipit, McCown’s and Chestnut-collared Longspurs as well as Long-billed Curlews chasing Golden Eagles.  Curlew disdain for eagles is known right away, as they scold and chase the larger eagles, America’s most powerful predatory bird, across the prairie.  Rare prairie nesting species we encountered included Ferruginous Hawk and Baird’s Sparrow.  A few species I thought I would never see in my life.

Chestnut-collared Longspurs fly up in the air and parachute back to the ground on wings held high, impressing feathered and human onlookers.

We were lucky to encounter a Plains Hog-nosed Snake which allowed us some close-up looks.

After the prairies, our group ventured into the foothills of the Rocky Mountains in southwest Montana.  Our base was Livingston, and we enjoyed the town and hotel as much as the adventures.  The Murray Hotel, downtown, allowed us to experience an old, western, authentic establishment, that is famously haunted, especially on the third floor, where my room was!  After returning from an old burned-over woods containing Lewis’s Woodpeckers, and visiting a wonderful bird feeding station with Evening Grosbeaks, Cassin’s Finches, Red Crossbills, and many others, the Murray awaited.  The rooms were well-appointed in Western and Native American decor.  Old photos of folks dressed in long-ago outfits decorated the walls.  I did not have a supernatural experience that night, but others in the group might have been in touch with the spirit world.

We visited two fantastic feeding stations, allowing opportunities to view hard to find species such as the Evening Grosbeak, a large finch.

Forrest Rowland, our Guide, enters the Murray Hotel in Livingston, with its famously haunted 3rd floor, where my room was.

Our group eagerly awaited Yellowstone National Park.  Large mammals abound, not to mention otherworldly hot springs and geothermal features.  Our first stop was Mammoth Hot Springs, which bubbles up boiling water, creating a beautiful cascade of dissolved limestone that reforms when in contact with the air at the surface.  Said to look like an inside-out cave, Mammoth Hot Springs is a beautiful sight, combined with sulphury smells, hot steam, and swirling colors.

Mammoth Hot Springs

We took one of the longest hikes of the trip here, partially to find Dusky Grouse and Williamson’s Sapsucker.  We found the Grouse by listening for its soft, low, cooing calls, produced by pinkish air sacs on the side of the male’s neck.  Forrest heard it, located it, and had us making concentric circles around the bird, without making eye contact with it, until we were right on top of it, taking a seat feet from the bird.  It went about its business, unconcerned by our proximity, so it seemed.

This male Dusky Grouse allowed us to sit practically next to it, as it made low, soft cooing sounds from the air sacs on its throat.

Along the walk, a few of us were looking at a butterfly, trying to identify it, when a brown figure was seen walking up a side trail towards us.  EEEEK!  It was a bear!  We noticed it when it was about 25 feet away, which is rather close.  We quickly stumbled away from it, walking at first, then moved with a little more urgency towards Forrest, who had the can of bear spray.  Hearts were racing, and there might have been a little pushing, but it turned out to be a young male cinnamon-colored Black Bear, only interested in getting a drink at the nearby creek, and eating some flowers.

This mild-mannered cinnamon Black Bear certainly startled a few of us on the trail, as we did not notice it until it was very close to us.

After our Bear encounter, we moved on to some of the large, open valleys in the park to seek other large forms of wildlife.  One way to do this is to stop where other people are on the side of the road looking at something.  One of our first “wildlife jams” on the road was caused by a mother Grizzly Bear and her two cubs tearing apart an elk that she had just killed.  As we watched them feed (300 yards away through the scope), you could see them tearing meat off the carcass…a brutal reminder there are animals here that are one step higher up the food chain than you.

For many of us, it was the herds of Bison that made the show at Yellowstone.  These hump-backed, woolly cow-like creatures plod around grasslands, roll in the dirt, walk down roadways, butt heads, and move along with young calves, right in front of you.  The calves are extremely cute, and allowed us fabulous looks.

In early June during our trip, it was “Cute Calf Season” for the Bison.

During our last few days in the park, continued our search for wildlife.  Sightings included Coyote, White-tailed Deer, Mule Deer, Bighorn Sheep, Mountain Goats, Moose, Pronghorn, and many species of birds including Harlequin Ducks and Barrow’s Goldeneye which inhabit the fast-moving rivers in the park.  One thing we missed by 10 minutes, however, was Gray Wolf.  We gave it a good effort, but didn’t end up seeing them.

Coyote are apparently more difficult to see in Yellowstone that Gray Wolves. We missed the wolves, but had this Coyote walk right past us.

Finally, although it was early June, we couldn’t leave the Rocky Mountains without at least one shot of snow.  Beartooth Pass, at nearly 11,000 feet in elevation, was closed to vehicular traffic up until the day we needed to cross it.  Finally, on June 3rd, hours after it opened, we ascended to the top.  Snow was falling, as was the thermometer in the car as we climbed.  At the top, the temperature was 31 degrees, the wind howled, and we dressed in every layer we brought.  We drove through canyons of snow 20 feet deep, as the road snaked its way over the barren top of the pass.  Considered one of the most scenic roads in the Lower 48,  it was a perfect way to cap off the adventure to the Montana and Yellowstone National Park.

The weather at Beartooth Pass finally allowed for some blue sky and clouds, after 31 degrees, snow, and high winds earlier in the day.

The next Delaware Nature Society Eco-trip is to Ecuador to see hundreds of species of birds in the Andes Mountains, where you will have the opportunity to surpass the elevation on the Yellowstone trip.  From 13,000 feet down to about 5,000 feet, sample the best of birding, eco-lodges, food, and natural beauty in one of the world’s most bio-diverse countries.  Sign up today!!!

By Ian Stewart

Delaware Nature Society has over 200 nest boxes spread around the properties we own or help manage which we installed to provide nest sites for a variety of birds. Every summer these boxes are monitored by a team of volunteers who track over 100 nesting attempts by 5-6 bird species (and we are always looking for more people to help with this – please get in touch if you’d like to get involved!). You’d be wrong to think the boxes stand idle throughout the winter however – it’s just that most of the action now takes place at night!

Several birds often roost in them during the winter, including Screech Owls, Eastern Bluebirds and some woodpeckers, which they probably do to protect them from the elements such as wind and rain. It is likely several degrees warmer inside a nest box than outside of it and for a small bird on a very cold night this could be the difference between life and death. Bluebirds take this a little further and are famous for ‘bundling’, where several birds squeeze into the same box for the night, probably keeping each other warm with their body heat.

A male bluebird entering a nest box

A male bluebird entering a nest box in winter

This year we’re making a special effort to check our boxes during the winter too. Sometimes it’s obvious that birds have been roosting in our boxes as they leave their droppings behind. The droppings in the photo below were almost certainly from a bluebird that has been eating Oriental Bittersweet. Bluebirds usually eat insects but at this time of year these are hard to find so they switch their diet to berries, and this exotic invasive vine is one of the few local plants that still has berries on it in February. You can help bluebirds in winter by planting berry-producing native bushes and shrubs such as Winterberry, Viburnums and Hollies. We will be following these boxes all through the year to see if bluebirds end up nesting in the same boxes that were used in winter.

Bluebird droppings inside a nest box

Bluebird droppings show they have been using this nest box

It’s also worth checking nest boxes in winter for less-desirable occupants. About 10% of our nest boxes are occupied by white-footed or deer mice during the winter. These nocturnal mice build fluffy nests inside boxes and sleep in them during the day. We always dump out mice and their nests during the winter, which may seem unkind but if left in place their urine and feces can damage boxes or carry disease, and birds won’t use boxes already occupied by mice. If you do this yourself, don’t use your hands to dislodge mice and their nests in case you pick up any disease or get bitten, but instead gently ease out the box contents with a stout stick.

Two deer mice fast asleep in this box

Two deer mice fast asleep in this box

This box at Coverdale Farm Preserve contained a furry nest with no fewer than 15 uneaten hickory nuts, which was interesting as this is not a common tree at the Preserve. These had probably been stored in the box by a Flying Squirrel, a nocturnal mammal which does not hibernate and requires food all winter. The squirrel cached the nuts here to provide a food supply for later in the winter, so to be sure the little guy wouldn’t go hungry we left the nuts below the box.

Hickory nuts cached in this nest box by a flying squirrel

Hickory nuts cached in this nest box by a flying squirrel

So just because you never see anything going inside your nest boxes in winter, don’t assume they aren’t being used!