Bat Monitoring

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Kristin Henderson and Frank McLaughlin monitoring bats

The bat monitoring project has kicked off in earnest. For more information, contact Barbara E.

Results from Rust Monitoring:

in 45 minutes of monitoring:
187 Total Bats id’d. This is the most id’d in any location so far.
90  Big Brown Bat   Eptesicus fuss
  2  Eastern Red Bats.  Lasiurus borealis
37. Hoary Bats. Lasiurus cinereus
58  Silver-haired bats  Laisonycteris noctivagans

Dates for monitoring:

6/13 – Wednesday – IWLA Field
6/15 – Friday – Rust Sanctuary Pond
6/17 – Sunday- IWLA Pond
6/20 – IWLA Field
6/22 – Rust Sanctuary Pond
6/24 – IWLA Pond
6/27 – IWLA Field
6/29 – Rust Sanctuary Pond
7/1 – IWLA Pond
7/4 – IWLA Field
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Summer 2017 Newsletter published

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You can find the latest newsletter here.

 


Also, don’t forget these important upcoming dates:

August 5th – (Vol) LWC Butterfly count
August 5th (CE) – Bat Program
August 13th – VMN Banshee Reeks picnic
August 15h – Application deadline for new class
Sept 9th – (Vol) Native plant sale
Sept 15-17 – (Lots o’ CE) State VMN Conference

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2016 Annual Meeting – New officers and board

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On November 10th, the VMN Banshee Reeks chapter held an annual meeting.  The election results are:

  • President – Barbara Erlandson
  • Vice President – Frank McLaughlin
  • Secretary – Susan Sims
  • Treasurer – Angie Bommersbach

Board of Director Members:

  • Dave Cazenas
  • Bill Cour
  • Liz Dennison
  • Allison Gallo
  • Thaissa Klimavicz
  • Thomas Letonja

Other Members:

  • Kevin Rose, Chapter Advisor
  • Brian Meyerreicks, Past President & Chapter Agent
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eBird – a handy tool and a help to science

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Lists

Most people as they start birding on a regular basis decide to start keeping lists.  A life list, a state list, a county list – sometimes it seems that birders are more interested in lists than birds.   Did you know that eBird can BE your list?  If you enter your data regularly into eBird, it shows you a breakdown of your history of sightings by all kinds of different measures.

eBird provides life, year, month lists for a variety of locales

eBird provides life, year, month lists for a variety of locales

Hottest hotspots in Loudoun

Hottest hotspots in Loudoun

Checklists

When going to a new park, many folks pick up the copy of the bird checklist for that park – often a paper copy can be found in the visitor’s center.  Sometimes you go to a new park and there is no checklist, even no visitor’s center.  So you have to guess at what birds are likely and at what else you might have seen.  eBird can provide you a good checklist in all kinds of locations.  For a Hotspot (a publicly shared location like Banshee Reeks), it is based upon what has actually been seen at that location at similar times of the year.   And not just by the season (e.g. Winter), but for the week that you are there visiting.  Further, eBird will highlight which birds are rare – the central point of the feature is to keep the data clean, but it can be very helpful to help you choose between two similar species based upon likelihood.  eBird Mobile can be your notebook/checklist in the field – I find it much easier than scribbling notes down on paper.

Bar charts showing likely locations for a hotspot

Bar charts showing likely locations for a hotspot

Hotspot summary

Region summary

 

Planning

eBird has a few features that help with planning birding trips.  You can look at a particular Hotspot (or even a region) and see what birds are likely by looking at the bar charts for that location.  Or if you know you’ll be in a place, you can explore that region (a country, state, county) and find the Hotspots with the biggest number of species seen.   Next, if you want to see a particular bird, you can explore the data by species and see where you could go to see that bird.  Finally, you can look at a list of target species at a location based upon your life lists.

Target species list - clicking map will show where they might be seen

Target species list – clicking map will show where they might be seen

Alerts and Social

eBird provides the capability to subscribe to alerts – both rare birds (anything that would be flagged by eBird) and ‘Need’ birds.  ‘Need’ birds are birds that you haven’t seen that have been seen in a particular area.  These two features really help to ensure that you are more likely to see a wide variety of birds.  Finally, for each area, eBird will show you who has seen the most birds and who has submitted the most checklists – you can even see recently submitted checklists to see who is recently active.  This can help you connect with other active birders in your area.

Alert subscriptions

Alert subscriptions

The Science

eBird captures all this data and from it the researchers at Cornell (and other institutions) produce many papers and tools.  This dataset is one of the largest ever amassed biodiversity data sets.  eBird is being increasingly used to support Breeding Bird Atlas projects which dramatically reduces the amount of manual effort required to collect and compile the data.

To Get Started

 

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What do YOU Know About American Chestnut Tree Restoration?

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By Larry Johnson

Question– Is an American Chestnut tree growing on BRNP property?

Question– Does a wild (native survivor) American Chestnut tree exist in Loudoun County?

Answers at end of article.

Looking for a botanically-focused venture, this past June 2016, I volunteered for a week-long annual inoculation project at The American Chestnut Foundation (TACF) Research Farm through the Roads Scholar Program. Having read numerous articles ranging from newspapers to journals, I arrived in Meadowview, Virginia, naïvely thinking I knew a lot about the plight of the American Chestnut. Not so much, it turned out.

After a brief introductory session, the volunteers were turned over to the Research Farm’s lead scientist, Dr. Laura Georgi. For the next five days Dr. Georgi lectured, instructed, tutored, demonstrated, illustrated—motivating us to learn about almost every aspect of the chestnut species. During the course of the week our learning environments ranged from a class setting to the research farm’s laboratory to the orchard fields. I gained direct knowledge by performing field work in the Meadowview orchards. I learned first-hand how to identify the various symptoms of the blight’s infections; developed a detailed understanding of the pathology of the fungus; and learned to differentiate taxonomically the hybridized tree generations produced in the backbreeding projects. In the Farm’s laboratory, Dr. Georgi provided a rudimentary introduction into the genetics of crossbreeding as practiced by TACF (intrabreeding), and a working level tour through the lab’s procedures and techniques in germinating nuts to grow approximately 5000 seedlings per year.

It is rather common knowledge in botany-centric worlds, that the accidental introduction of the fungus (Cryphonectria parasitica), devastated the American Chestnut tree (Castanea dentata), the penultimate foundation species to grow in the eastern North American forests (1-1.5 billion trees). By the end of WWII, in slightly over 50 years, the great American Chestnut was reduced to a few standing survivors and even now these more immune exotic specimens continue to succumb to the blight. Less known is that although the fungus destroys the aboveground stems, it does not attack the root systems which are protected by the soils. This is a fortunate factor in an otherwise total ecological disaster, as the blight did not cause full extinction of C. dentata. The fungus does however cause the extirpation of the tree’s physiology out of the forest canopy, resulting in the chestnut being functionally extinct.

Recent research,[1] designed around and based on the enhanced version of the U.S. Dept. of Agriculture’s Forest Inventory and Analysis (FIA) program[2] where sampling was compiled by states’ forestry evaluation groups, estimates roughly 431 million (error ±30.2 million) C. dentata stems (stem, sapling, or tree). This population equals less than 10% of pre-blight population in its historical range. Distributed across the 16 core-range states, 70.9 million live trees (>2.5 cm dbh) are estimated to exist. That the vast majority (84%) of the stems inventoried in the FIA are seedlings (< 2.5 cm dbh) illustrates the greatly diminished structure of the surviving stock.

Since the blight was discovered, various groups have attempted either to eradicate the fungus or to develop resistant trees; this latter option considered the most viable in terms of success. Hypovirulence control, inter/intra breeding, and genetic engineering are the three main approaches practiced by restoration efforts. Recently the breeding programs and the genetic engineering techniques are experiencing broader support and probability of success in chestnut tree restoration.

TACF is one of the larger national restoration organizations. See box below. The TACF pursues the traditional inter/intra-breeding approaches to developing an immune hybrid tree that is 95% American. The TACF Research Farm is located in Meadowview, with three large local orchards and another remote orchard at Matthews State Forest near Galax. These properties contain approximately 50,000 trees, sprouts, and seedlings planted as stock for their backbreeding program headquartered and operated in a Virginia Dept. of Forestry certified laboratory. With only four staffed positions, the Meadowview backbreeding programs are highly dependent upon volunteers and citizen scientists to perform hands-on tasks during the critical spring and fall months when the chestnut trees are in their annual growth stages.

source - Wikipedia (creative commons)

American chestnut field trial sapling from the American Chestnut Cooperators Foundation

Meanwhile back on the farm, er, in the orchards that is, with nine other Roads Scholars, we worked up to eight hours per day performing inoculations of over 2000 trees. Yes, we were intentional infecting trees with the fungus! Inoculations are performed on 3- to 5-year-old trees to determine each plant’s susceptibility to the fungus. Of the 2000 tree we treated with the fungus, the survival rate will probably be 5 or 6 trees. American chestnut tree immunity to the fungus is a very low percentage condition enabled by a genetic mutation from cross breeding.

After limited early success, much progress is being achieved in producing a blight resistant tree, especially in the past 10 years. Advances in breeding techniques and procedures have been greatly enhanced through the contributions of biochemical analysis and mapping of the chestnut genome by genetic engineers. Aided by these scientific disciplines, one can perceive within the chestnut groups a change of attitude from one of dogged determination working against an overwhelming foe to one of confidence based on intelligent information. Conservation literature is beginning to address the pragmatic environmental impacts of repopulation dynamics of the chestnut tree on the current forest biome.

After a brief—but intense— indoctrination into the Chestnut tree and its blight I cannot claim to be naïve any longer. But based on my experience in Meadowview, I must humbly admit that even more than before, my level of knowledge remains “Not so much—still.”

However, I more fully comprehend the scope of the task of the TACF and related organizations with their goal of forestland restoration. More importantly, I understand the vital importance of the role and the dedication of volunteers necessary to support the mission of restoring the mighty Chestnut tree.

Answer 1. Unreported; Highly improbable.

Answer 2. Yes, according to USDA Natural Resources Conservation Services, Plant Database

[1] Dalgleish,H.J.; Nelson,C.D.; Scrivani,J.A.; Jacobs,D.F. Consequences of Shifts in Abundance and Distribution of American Chestnut for Restoration of a Foundation Tree. Reprinted from Forests (ISSN 1999-4907) in Chestnut, The Journal of The American Chestnut Foundation, Issue 2, Vol. 30, Spring 2016.

[2] Bechtold,W.A.; Patterson,P.L. The Enhanced Forest Inventory and Analysis Program- National Sampling Design and Estimation Procedures; Gen. Tech. Rep. -80; Department of Agriculture, Forest Service, Southern Research Station; Asheville, NC, USA, 2005; p.85.

 


The mission of The American Chestnut Foundation (TACF) is to restore the American chestnut tree to our eastern woodlands to benefit our environment, our wildlife, and our society.

To learn about TACF and its national breeding program, visit www.acf.org. To join the effort to restore the American chestnut tree, visit www.acf.org/join.php.

The American Chestnut Foundation has a Tree Locator project that encourages identification and verification of native or wild specimens of C. dentata. To assist and standardize the inventory efforts TACF maintains an online reporting site: acf.org/find_a_tree.php.

 

 

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