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| Examples of Current Projects
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Hurricane
Charley Canopy Study
Under a grant from the Florida Division of Forestry,
Wildlands Conservation has completed an assessment of
the impact Hurricane Charley had to the tree canopy cover
of forested areas of Charlotte County. This project
was funded by a grant from the Urban and Community Forestry
Grant Program the Charlotte County Government, Information
Technology-GIS Department.
The Urban and Community Forestry
Program grant funds are provided by the U.S. Department
of Agriculture Forest Service and administered by the
Florida Division of Forestry. The purpose of
the program is to provide assistance to local governments,
nonprofit organizations, educational institutions,
and volunteer groups to develop or enhance local urban
and community forestry programs, and improve the urban
environment. The goal is not simply beautification
through tree planting, but to develop and enhance forestry
programs. In 2005, an Emergency Hurricane Supplemental
was issued by the program, and it was under a grant
from this supplemental to the program that our project
was completed.
Hurricane Charley struck Charlotte
County in August 2004, causing widespread destruction
in Port Charlotte and the City of Punta Gorda. In
our research study, we utilized photointerpretation
of aerial photography, ground-truthing, and a geographic
information system to assess and quantify canopy damage
to forested areas throughout the County that resulted
from the hurricane.
Our results revealed that an estimated
4,651 acres of forests were severely damaged (63% of
which were mangrove forest) with 40-100% mortality,
and 6,720 acres were moderately damaged (nearly 100%
of which were mangrove forest). An additional
15,172 acres (89% of which were upland forest types)
received some discernable canopy damage; most of these
forests have since recovered. Mangrove forests
along the eastern shoreline of Charlotte Harbor—subjected
to the windward side of the hurricane—received
the most widespread severe to moderate damage, extending
inland by more than 1,000 meters from open water in
some locations. Conversely, mangrove forests
along the western shoreline had severe to moderate
damage for only 150 meters inland, on average.
We hope that the results of our
study will prove useful, and will be shared between interested
organizations. We also hope that it may serve as
impetus for long-term monitoring of the recovery and
status of the impacted mangrove communities around Charlotte
Harbor. |
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ANNUTTELIGA HAMMOCK ACQUISITION
Wildlands Conservation is
working with landowners and the Southwest Florida Water
Management Disrict to link the Chassahowitzka State Forest
along the gulf coast of Hernando County to the Withlacoochee
State Forest in Citrus County through the Annutteliga
Hammock. This geologically and biotically unique region,
which extends across northwest and central Hernando County,
is characterized by a combination of rolling long-leaf
pine and turkey oak sandhills and hardwood forest covering
steep sided hills and small valleys. This region hosts
many rare plants and animals, including the Florida black
bear, Sherman’s fox squirrel, and gopher tortoise.
This population of black bear is the smallest in Florida
and is critically dependent on the maintenance and restoration
of biological connections to other bear populations.
Much of the region known as the Annutteliga Hammock
site has been platted out in single family lots that
are collectively known as the Royal Highlands, which
was subdivided into thousands of ½ acre lots
in the 1950’s. Fortunately for our efforts, most
of the Royal Highlands subdivision has remained undeveloped,
with just a few rural residents dotting the landscape.
Unfortunately, however, many of the 1000’s of
lots are owned by individual owners worldwide. Ideally,
when the linkage is completed there will be an 80,000
acre block of contiguous protected native lands that
not only provide refuge for wide ranging species, but
provide great passive recreation potential. We will
continue to improve upon this new corridor and to protect
the highest quality remaining native habitat in this
fast developing and fragmenting area.
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Brooker Creek Augmentation
Study
Over the past 10 years,
Pinellas County has been involved in the process
of re-hydrating wetlands that were de-watered due
to their close proximity to an active wellfield.
The purpose was to see if wetlands that had been
significantly degraded could be biotically restored
with groundwater re-hydration. In conjunction with
this re-hydration, we have been evaluating the response
of the flora and fauna to this hydrological restoration
in order to determine if surficially isolated wetlands
could be effectively restored biotically. More specifically,
we compared three sites augmented with ground water
to two control wetlands outside the influence of
groundwater withdrawal. We did this by evaluating:
Hydrology
Monthly water levels were collected in all of the
augmented and control wetlands.
Vegetation
We quantitatively surveying the vegetation using
point count intercepts and quadrats extending from
the edge of each of the augmented and control wetlands
to the center
Herpetofauna
We positioned several survey stations around each
of the augmented sites and the control wetlands.
Each survey station included:
- A drift fence with pit
fall traps and funnel traps to collect, mark, and
recapture reptiles and amphibians.
- Two widths of pvc positioned
vertically. These are used as refuge by treefrogs.
All treefrogs were marked.
- Traps were opened for four
8-day survey periods centered around the growing
season.
Birds
Bi-monthly timed surveys were conducted at each of
the study sites (the augmented sites) and the reference
sites (the control sites).
We are in the process of evaluating the data; to
date we have observed several changes that are encouraging.
First, as water levels rise, vegetation has succeeded
from a community dominated by upland transitional
species to a community dominated by wetland species.
We observed that wetland "obligate" birds,
such as herons and their allies, were the first to
re-colonize the sites. Their return was timed with
the presence of standing water - visible aerially.
Wetland herpetofauna returned with the presence of
standing water coupled with the sheet flows that
accompany summer storms.
Stay tuned for more information regarding this
study when we publish our final results.
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