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Prairie Hero Remembered
Dr. Robert
F. Betz, a conservation hero and prairie champion passed away at
84 this spring. Bob Betz was a War World II veteran and biochemist by
training. He was a professor of biology at Northeastern Illinois
University, Chicago, where in addition to biochemistry, he taught
ornithology, plant taxonomy, and plant geography. Many of his students
are now professional biologists in the natural areas field.
Dr.
Betz was the key architect in the establishment and restoration of the
1,200- acre Fermi Lab Prairie at the National Accelerator Laboratory in
Batavia Illinois. Earlier restorations were developed by transplanting
actual prairie plants from threatened sites, a much more laborious
process that has been replaced by direct seeding. Betz developed the
technique of using succession to restore prairie by beginning with
seedings of early successional prairie species, followed by those of
later successional stages. The Fermi- Lab was one of the first to
consider bison as a management tool (http://www.fnal.gov/pub/
about/campus/ecology/prairie/index.html).
Dr. Betz
was equally famous for his remarkable discovery that Pioneer Cemeteries
could be the very best places to look for original, undisturbed prairies
in Illinois and Indiana. Bob conducted an exhaustive inventory to find
these prairie gems. He could often be seen crawling around the back lots
of mowed cemeteries where he coined the phrase looking for “Bonsai
Prairie Plants”. Bob taught many of us how to identify these bonsai
prairie plants even if they were mowed to within an inch of the soil
surface. Bob is credited with finding scores of these pioneer cemeteries
in Illinois and Indiana, many of which are now protected. To protect his
prairie finds, he developed a one-man prairie preservation society
through Northeastern University, including a sign and plaque for each of
the prairies.
“Dr. Betz spent numerous
days seeking out cemetery prairies in Indiana. He told me he
deliberately had at least one of his daughters attend a university
in Indiana so he would have time to spend in Indiana. One time Dr.
Betz made a trip to Lake County to meet the owner of what is now
“Biesecker Prairie Nature Preserve”,
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One-Year Preliminary Analysis of Seagrass
Restoration
in Lignumvitae Key Submerged Land
Managed Area, Florida, USAJanice A. Duquesnel1*
and Henry T. Smith2,3 |
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Lignumvitae
Key Submerged Land Managed Area (LKSLMA) encompasses 4,050 ha
surrounding the islands of Lignumvitae Key Botanical State Park, Indian
Key Historic State Park, and Shell Key Preserve State Park in Florida,
USA (Florida Department of Environmental Protection 2000). LKSLMA is
managed by the Florida Department of Environmental Protection, Florida
Park Service. It covers two management zones, Lignumvitae Key Botanical
State Park and Lignumvitae Key Aquatic Preserve and falls within the
boundaries of the Florida Keys National Marine Sanctuary. Of the 4,050
ha of submerged land, seagrass habitat coverage consists of
approximately 3,400 ha with the remaining 650 ha comprised of hardbottom,
composite, and unconsolidated habitats (FDEP 2000, Engeman et al. in
press). Seagrass beds are an important component of the submerged
habitats in the Florida Keys ranking among the highest in biotic
potential of any natural community worldwide (Zieman and Wetzel 1980).
Seagrasses remove suspended sediment from the water column, stabilize
sediment via their root structure, provide an important ecological
function to the offshore
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coral reef habitat (Ogden and Zieman 1977),
produce oxygen, and provide food and shelter for numerous animals that
rely on the seagrass beds on a seasonal or diurnal cycle (Ogden and
Zieman 1977, Fonseca 1990, Kenworthy and Schwarzschild 1995, Fonseca et
al. 1998, Engeman et al. in press). In addition, many of the species
that utilize the seagrass beds are important to the recreational and
commercial industry of the Florida Keys. In Florida, boating activities
pose the biggest threat to shallow submerged habitats and with over
750,000 registered vessels in Florida (Bell et al. 2000, Engeman et al.
in press) shallow seagrass beds are especially susceptible to boat
damage (Creed and Amado Filho 1999, Engeman et al. in press). Recovery
from boating injuries can be very slow; therefore, continued protection
of these resources is paramount to the protection of the ecological
functions they provide (Engeman et al. in press). Protection includes
proactive resource management; however, where damage has occurred in
seagrass beds, restoration of these resources is necessary. Seagrass
damage is typically caused by vessel groundings, which create several
injury types such as grounding holes, propeller blowouts, and propeller
scarring (NOAA and FDEP
(Continued
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