Avalonia
Land Conservancy’s mission statement reads: “…Preserving
natural habitats in southeastern Connecticut by acquiring and
protecting lands and
by communicating the value of these irreplaceable resources”.
In
order to better understand and communicate the value of our
resources, Avalonia promotes educational efforts on our preserves.
By welcoming students and supporting their projects we benefit from
their knowledge and insight as well as make valuable connections to
the extended resources they represent.
Here in
Stonington we have a widely varied offering of habitats and
preserves. Over the last several years we have made some wonderful
academic and scientific connections and offered numerous
opportunities for study. We have had students as young as preschool,
and all the way through college and graduate school, working on
projects on Avalonia properties.
In
2011-12 a student from Brown University studied the presence and
effects of Sesarma (Marsh Crab) on the Cottrell
Preserve. These crabs burrow in the mud
along salt marsh edges, consume the grasses that support the edges,
and seriously erode the marsh when their populations are large.
Holes
used by Sesarma Marsh crabs can cause erosion.
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For
several years, including 2013, University of Connecticut students
have visited several marshes in town, including the Woolworth
Preserve and Paffard
Marsh this year, to study the birds that
make use of the different habitats associated with these areas.
Arriving at dawn, the different teams looked for the uncommon Seaside
Sparrows and Salt Marsh Sparrows as well as other marsh nesters.
Other teams surveyed the areas where the woodlands met the marsh for
birds that use these areas.
Yellow
Warbler is one of many species that use marsh edges.
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On the
Peck and
Callahan Preserves, the USFWS and DEEP,
along with Avalonia volunteers, will begin a long term study of the
wildlife that makes use of the newly created shrub and young forest
habitats. We will especially be looking for the New England
Cottontail and several shrub dependent birds like the Brown Thrasher
and Yellow Breasted Chat.
The
Knox Preserve
has been the focus of many studies over
the years. For two decades, Federal Bird Banding has been conducted
on the preserve and meticulous records kept of observations and
populations and species. This year, with the successful establishment
of a Purple Martin colony, the DEEP conducted a special banding
operation to add to the data being collected about this species,
their migrations, returns and dispersals throughout the area.
Robin
being processed prior to banding.
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Purple Martins at the Knox Preserve are now part of a migration and dispersal study.
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Connecticut College students from the Goodwin Neiring Centerfor Environmental Studies, conducted numerous projects this past
year. They included studying the drainage and plant life of the
brackish pond there. Another group studied the field restoration
effort and introduced native plants; others enhanced the bird housing
availability on the property.
Sandy
Point, our Island just off Stonington
Point, has long been studied. The bird populations are documented
frequently during the nesting season with special attention to Piping
Plovers, Least terns and American Oystercatchers. Horseshoe crabs
are tagged and counted as part of an ongoing study, Project Limulus,
conducted by Sacred Heart University. The island is well renowned for
its population and nesting habitats for these ancient and valuable
animals.
Project
Limulus studies the Horseshoe Crabs at Sandy Point.
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Dodge
Paddock, which has been the subject of
efforts by Avalonia and DEEP to improve the habitat by improving
drainage and removal of the invasive Phragmites, will also now get
its own study group. A doctoral fellow and team from Trinity College
will be monitoring the Phragmites removal efforts, and will
concentrate on regeneration of native plant diversity in the areas
where the Phragmites have been eradicated and the effect the
treatment has on the soils in the area.
A new
team will study the long term treatment of
Phragmites that have taken
over Dodge Paddock.
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Every time we encourage a study effort, we benefit from the knowledge they have gained and in turn are better able to steward the lands entrusted to our care.
Written
by Beth Sullivan. Photography by Beth Sullivan and Rick Newton.
Learn more about the preserves mentioned here at avalonialandconservancy.org.
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