The Virginia Geological Field Conference

Feature photo: An outcrop showing boudinaged felsic leucosomes and quartzofeldspathic domains. The location is along the south bank of the South Anna River a few yards east of Route 673, Rockville, VA.

Article and photos by FMN Stephen Tzikas

Every autumn the Virginia Geological Field Conference (VGFC) provides geologists, university students, and the public an opportunity to participate in a geologic field excursion within the State. In 2022 the event was held November 11-12 and explored the Goochland Terrane, just west of Richmond, VA. Attendance levels usually necessitate the need for two coach buses to transport the participants to the various locations on the agenda. The event is usually hosted by universities, community colleges, and/or State organizations. The field experience is invaluable. The VGFC website provides the details and should be monitored: https://vgfc.blogs.wm.edu/

These conferences and field trips are not just found in Virginia, but they are not available in every state. Fortunately for Virginia Master Naturalists, our neighboring States have very active programs as well:

I highly recommend these State excursions as learning experiences for Fairfax Master

This is one of the many outcrops at Hidden Rock Park in Goochland, VA. These leucogranite dikes display boudinage structure.

Naturalists, even though only the VGFC excursion is applicable as FMN CE training.*  I have been to several of these and they are excellent, especially the ones found in northern states offering glacial geology exploration opportunities.

There were plenty of boudins at visited locations in the 2022 VGFC site itinerary. A boudin is a geological term for structures formed by extension (stretching), forming sausage-shaped boudins.

Photo: Close-up of the center of the outcrop in the photo to the right, above.

*Fairfax Master Naturalists: Enter CE using All continuing Ed ->Other and then make a note of the trip in the description field.

Help Control Invasive Plants with the Friends of Dyke Marsh, February 4th & 18th and March 4th & 18th

Photo: Courtesy of National Park Service, Dyke Marsh Wildlife Preserve 

Saturdays, February 4 and 18 and March 4 and 18, 2023
10:00 AM

Meet at the Haul Road Trail entrance bulletin board.
GPS coordinates: 38.777739, -77.050540

Directions:
South of Alexandria off the GW Memorial Parkway at
the sign for Dyke Marsh Nature Preserve and Belle Haven Marina,
turn east onto the road toward the Potomac River. Take the first
left and park in the Belle Haven Park lot. Walk back to the marina
road and turn east, toward the river. Walk 30 yards. On your right
is a Dyke Marsh sign and the entrance to the Haul Road trail.

Sign up by sending an email to [email protected]

 

Join the Friends of Dyke Marsh at 10 a.m. on these dates and help tackle invasive plants: February 4 and 18 and March 4 and 18.

Meet at the Haul Road Trail entrance bulletin board. Bring water, gloves, hand clippers and a lopper, if you have one. We will supply instructions, examples of targeted plants and trash bags. We will have a few hand clippers and loppers to share. Wear long sleeves and pants and sturdy shoes.

Sign up by sending an email to [email protected] and put “Invasive Plants” in the subject box. Indicate your preferred date(s). We kindly ask that you not bring pets.

Welcome Fairfax Tree Stewards

Cover photo: Public Domain

In January 2023, the FMN board approved a chapter partnership with Fairfax Tree Stewards (FTS). FTS is an educational, non-profit, volunteer organization providing specialized training and certification focusing on trees. It is a program under the auspices of Trees Virginia, registered with the state as Virginia Urban Forest Council and is a private, non-profit organization whose mission is to enhance the quality of life through the Stewardship of our Commonwealth’s urban and community trees. Founded in September 1990 and incorporated in June 1991, the organization works to promote an awareness of our community forests and the value of trees. Approved chapters, such as FTS, use the newly updated Manual to form the basis of training classes, and FTS will supplement book learning with hands on field classes on tree selection, tree planting, tree pruning and tree ID by season.
The first FTS certification class, scheduled for February 2023, is full and includes a few FMNs. FTS is an approved CE organization and service codes for collaborative projects have been created in BI for use by FMN volunteers as projects develop.

Habitat creation and restoration – E405: Educational Projects Fairfax Tree Stewards – – FTS
Educational project code for Fairfax Tree Stewards (FTS).
Educational Projects could be advising a homeowner or association on proper tree selection and planting, education about maintenance, developing resource lists, or FTS tabling events at selected locations in Fairfax County.
When recording these hours in BI, ‘FTS’ should be entered as the Project Organization.

Habitat creation and restoration – S405: Stewardship Projects Fairfax Tree Stewards – – Department of Forestry (VDoF)
Stewardship project code for Fairfax Tree Stewards (FTS).
Stewardship Projects could be helping a homeowner or association with proper physical design, planting, tree pruning, or maintenance, at selected locations in Fairfax County.
When recording these hours in BI, ‘Department of Forestry (VDoF)’ should be entered as the Project Organization.

To participate in FTS projects, one must be a certified Fairfax Tree Steward along with being an FMN member.

Please see FTS website for more information.

FMN and FTS contact is Jeanne Kadet: [email protected]

5th Annual Prince William Native Plant Symposium, February 11th

Photo: Butterfly Bush Pollinators by FMN Ana Ka’ahanui

Saturday, February 11, 2023
9:00 am – 4:00 pm

This is a hybrid event.
Participants can either choose to join in-person, or online.
Location: Verizon Auditorium 
George Mason University
George Mason Circle
Manassas, VA 20109

Cost:
In-person tickets: $30
Online tickets: $15

Click here for more information and registration details.

Whether you are new to native plants and what they can do for your property or you are looking for alternative landscaping ideas, this event is for you! Native plants can:

  • Create a beautiful yard
  • Save time so you can enjoy other activities
  • Create habitat for birds & pollinators
  • Save money on fertilizer & pesticides
  • Improve water quality
  • Curb Erosion

 

 

UPDATE- new training location: The National Park Service (NPS) Needs Volunteers to Help Save the GWM Parkway’s Trees, January 21st

Photo: FMN J. Quinn

Saturday, January 21, 2023
10:00AM

New Location: Fort Hunt Park
8999 Fort Hunt Rd,
Alexandria, VA 22308

 

To Attend the training please register here.

The National Park Service (NPS) needs volunteers to help remove English ivy from many trees along the south GW Memorial Parkway.

Mireya Stirzaker, NPS Natural Resources Specialist, will hold a volunteer training on January 21 at 10 a.m. at NPS’s Collingwood Park/Picnic Area on the east side of the parkway.

What’s Involved

Mireya will help people learn how to remove ivy, designate safe areas in which to work and supervise at least one session.  NPS can provide some tools and supplies.

To attend the training, register at https://forms.office.com/g/WM8XykN9LG.  On January 21, dress warmly in layers, wear sturdy shoes and bring water. You can volunteer once or multiple times.

Ivy’s Harm

Invasive English ivy is a perennial, aggressive plant that covers the ground, crowds out valuable native plants and climbs up trees.

It can smother a tree’s bark and block the sunlight needed for photosynthesis.

Trees weighed down with ivy vines are more susceptible to toppling during rain, snow and ice storms.

Around 20 percent of the parkway’s plants are not native, according to NPS biologists. Most invasive, introduced from other areas accidentally and deliberately have few controls, form monocultures, impair biodiversity and destroy native habitats.

Why Care about the Parkway’s Trees

Trees sequester carbon, reduce other pollution, stem stormwater runoff, reduce cooling costs and provide habitat for birds and other wildlife.

The parkway is losing trees because of, for example, the invasive emerald ash borer.  The Dyke Marsh Wildlife Preserve alone could lose around 1,000 ash trees.

Many oaks are suffering too.  Over-abundant deer eat young saplings which alters forest succession, prevents regeneration of plants and impairs biodiversity.

A Memorial Parkway

In 1928, Congress authorized the construction of the Mount Vernon Memorial Parkway to honor the bicentennial of George Washington’s birth.  Planners created a design that includes forested areas, minimizes signs and lights and prohibits billboards.  It is intentionally a slow-speed parkway and trail of natural, historic and recreational sites in over 7,000 acres of parkland, our national park.

Healthy, native trees are an integral part of that design and consistent with Congress’s intent.

 

Ducks and Waterfowl Identification with Greg Butcher, February 2nd

Photo: FMN Ana Ka’ahanui

Thursday, February 2, 2023
7 – 8:30 pm
Online
$10 ASNV members/$15 Nonmembers

Register here.

Join Greg Butcher, Audubon Society of Northern Virginia board member and recently retired migratory species coordinator for the U.S. Forest Service International Programs, for an introduction to waterfowl identification. Get to know many of the species that winter in the open waters of our region. You’ll learn how to tell a Bufflehead from a Hooded Merganser, and, you’ll learn the features (and hear the call) of the beautiful Tundra Swans that winter in Northern Virginia. Strategies will include identification by shape and color pattern. After the presentation, test your identification skills with a Kahoot!

This event will be helpful for those participating in the Winter Waterfowl Count on Feb 11-12 but is open to anyone who would like to know how to identify winter waterfowl!

There is an optional field trip for a limited number of participants, but you are encouraged to do your own independent field trips to see winter waterfowl! Some good locations to see waterfowl in NoVa are Huntley Meadows, Dyke Marsh and Mason Neck State Park.

Save a Sapling: Pull Invasives

Photo:  Plant NOVA Trees

Article by Laura Handley

One of the most satisfying moments of invasive plant management comes when you pull the last vine off a struggling native sapling, freeing it to claim its full share of sunlight and grow without restraint.

Volunteers with Fairfax County’s Invasive Management Area (IMA) program get to do just that twice a month at Idylwood Park in Dunn Loring. In a series of workdays, primarily on Saturday mornings, these volunteers have worked to clear invasives from a meadow along the park’s driveway. A wide range of people have participated so far, from scout troops to high-school students seeking service hours to venerable Virginia Master Naturalists. Several have brought family or friends to chat with as they work, taking advantage of the chance to socialize outdoors.

According to Patricia Greenberg and Gloria Medina, the coordinators of the IMA program, several of the saplings the volunteers have uncovered (including black walnuts, multiple species of oaks, and a large Honey Locust) were planted by the park service in the late 2000s. But the area around the saplings was left unmowed and unmonitored, allowing invasive vines to creep in from adjacent areas. By the time the volunteers started working, those invasives dominated the meadow.

The volunteers’ first challenge was to clear a path to the trees, which were blocked not just by the invasives but also by Poison Ivy and thorn-covered blackberry canes (both of which are native plants but which were blocking the way). Next came the delicate operation of untangling the vines from the young trees’ branches. Any vines growing out of reach were left to hang on the trees, where they will eventually die and fall down on their own. The final challenge has been maintenance: keeping the vines from re-growing to cover the trees again. After repeatedly cutting them to the ground failed to do the trick, Greenberg and Medina joined site leader Laura Handley one morning this fall to apply herbicide to the vines’ stumps. This targeted application should hopefully finish off the vines (while leaving the surrounding vegetation unharmed).

The rescued trees are often oddly shaped, their crowns pulled sideways and their trunks wrapped with spiraling vine-scars. But as they grow, now free of obstructions, they should straighten up and fill out. And by rescuing existing trees rather than clear-cutting the area, the volunteers have given the meadow a ten-year head start on the process of returning to a mature forest.

Once the meadow is clear of invasives, the group plans to spread seeds for native wildflowers over the ground they’ve bared — that is, if any of the ground stays bare. In the two years they’ve been working on the site, several native species have reappeared or expanded their footprint, including Common Milkweed, Canada Goldenrod, Wingstem, Foxglove Beardtongue, and New England Aster. This robust layer of herbaceous plants will help keep invasives from returning to the site and will serve as food and habitat for many native insects, birds, and other critters–and as the saplings grow, they’ll start to do the same.

Winter is a great time to rescue trees, since it is easier to get at them and cold temperatures are good for working. The winter workdays for this site will soon be posted to the IMA program calendar, and similar volunteer events in locations throughout Northern Virginia can be found on the Plant NOVA Trees website. https://www.plantnovatrees.org/rescuing-trees

SPARROW IDENTIFICATION WITH BILL YOUNG, February 15th

Photo: Courtesy of ASNV Savannah Sparrow, Jon Boeckenstedt/Audubon Photography Awards

Wednesday, February 15, 2023
7:00 – 8:00 PM

This is a virtual event

ASNV Members-$15.00 (Non-members $25.00)

Click here for registration details.

Sparrows can be difficult to identify. They are small birds that often skulk in the underbrush, and their plumage shows a very limited palette of colors. This class will help you to tell apart the sparrows you might see in Northern Virginia and to separate them from other small brown sparrow-like birds.

Bill Young is a writer who lives in Arlington. He is the co-creator (with Ashley Bradford) of the MPNature.com website, and he has taught numerous classes for ASNV.

Winter Animal Tracking with Ranger Emily Jones, January 24th

Photo: Courtesy of the Audubon Society of Northern Virginia, inset – Ranger Emily Jones

Tuesday, January 24, 2023
7:00 – 8:00 PM

Virtual Program

ASNV Members-$15.00 (Non-members $25.00)

Click here for registration details.

Winter is a great time to practice your detective skills. While many mammals are nocturnal, they do leave behind evidence of their activities such as footprints and scat. Join this informative webinar to learn how to identify tracks and scat of our common Virginia wildlife. Ranger Emily will also lead the class through some interactive tracking mysteries to help you practice your observation and naturalist skills. Do you have a photo of some mystery tracks? Email it to [email protected] and iy may be covered during the presentation!

 

Emily Jones is a Natural Resource Specialist at the U.S. Army Corps of Engineers’ John H. Kerr Dam and Reservoir with over 2.5 years’ experience as an Outreach Park Ranger managing partnerships, coordinating the water safety program, and facilitating educational programs for groups of all ages with a range of topics including animal track ID, watersheds, hydropower, wildlife, forestry, and water safety. Emily also is a Virginia Master Naturalist with the Southern Piedmont Master Naturalist Chapter. By focusing on connecting people with nature Emily has been able to put her MA in Natural Resources and Sustainable Development (American University and University for Peace), BS in Environmental Studies, and BA in Civic Innovation (Emory and Henry College) to good use. Over the years, Emily has garnered recognition as an outreach park ranger earning the 2021 South Atlantic Division (SAD) Water Safety Employee of the Year Award and multiple SAD Quarter Environmental Education Awards. When not working as a park ranger or volunteering as a Master Naturalist, Emily enjoys traveling with her friends, gardening, stand-up paddle boarding, and spending time with her cats.

 

Birding the Blue Ridge Center, January 28th

Photo: Luke High

Saturday, January 28, 2023
8:00 AM

Where: Blue Ridge Center for Environmental Stewardship Education Center; 11661 Harpers Ferry Road Purcellville, VA 20132 United States
Members:
FREE
Non-members:
FREE

Click here for Registration.

The Blue Ridge Center for Environmental Stewardship (BRCES) is a beautiful 900-acre preserve in northwestern Loudoun County. With its diverse wildlife habitats, including meadows, streams and heavily forested slopes, BRCES draws a wide variety of birds and other creatures. Join Loudoun Wildlife Conservancy on their monthly walk and see what’s there! Meet at the Education Center; bring binoculars if you have them. BRCES is located just north of Neersville at 11661 Harpers Ferry Road (Rte 671).