Research and Monitoring Related to Sea Level Rise at the Grand Bay NERR
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Research and Monitoring Related to Sea Level Rise at the Grand Bay NERR
Will UnderwoodStewardship Coordinator
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Practice and Promote the stewardship of coasts and estuaries through innovative research, education, and training using a placed based system of protected areas.
Water Quality
Habitat Protection
Climate Change
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• NERRS System Wide Monitoring Program
• Graduate Research Fellowship (GRF) Program
• Grand Bay NERR site profile (ecological characterization)
• Coordinate research with DMR, universities, NOAA, and NERRS
• Applied research to local & regional issues
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The YSI 6600 EDS Datasonde
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Bangs Lake
06-02-0505-18-0505-03-0504-18-0504-03-0503-19-0503-04-05
pH
8.00
7.00
6.00
5.00
4.00
MS Phosphates Spill(April 2005)
TS Lee(Sep 2011)
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Long Term Monitoring• Erosion• Habitat
Mapping/Change• SAV• Invasive Species• Marsh Elevations
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What is SLAMM?• Sea Level Rise Affecting Marshes Model• SLAMM simulates the dominant processes
involved in wetland conversions and shoreline modifications during long-term sea level rise.
• A complex decision tree incorporating geometric and qualitative relationships is used to represent transfers among coastal classes.
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Study AreaPercent change
-100 - -75-74 - -50-49 - -25-24 - 0
Irregularly-flooded marsh viability: 2009 to 2025
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Study AreaPercent change
-100 - -75-74 - -50-49 - -25-24 - 0
Irregularly-flooded marsh viability: 2009 to 2050
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Study AreaPercent change
-100 - -75-74 - -50-49 - -25-24 - 0
Irregularly-flooded marsh viability: 2009 to 2075
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Study AreaPercent change
-100 - -75-74 - -50-49 - -25-24 - 0
Irregularly-flooded marsh viability: 2009 to 2100
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Effects of fire on water quality, plant production, and accretion in a Juncus roemerianus marsh
Primary Research Question: What are the effects of prescribed burning on a salt marsh
ecosystem?
How does fire affect:
• Primary productivity • Accretion processes
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• Transect[Treatment] : NS• Treatment: NS• Location: F(2,63) = 5.59, P=<.0001• Treatment*Location: NS
Means (mm ± 1 SE)Control Plots:Low =15.17 ± 2.9Mid =7.81 ± 1.11High =5.41 ±2.00
Burn Plots:Low =13.42 ± 0.94Mid =7.38 ± 2.58High =4.26 ± 1.06
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Burn Plots:Low =686.52 ± 50.04Mid =363.3 ± 94.75
High =356.18 ± 187.5
• Transect[Treatment] : NS• Treatment: : F(1,8) = 1.86, P=
0.005• Location: F(2,8) = 1.24, P= 0.04• Treatment*Location: NS
MeansControl Plots:Low =911.09 ±175.38Mid =838.37 ±159.58High = 673.3 ± 237.8
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GRAND BAY FIRE EFFECTS STUDY:Results
Variable Low Marsh Mid Marsh High Marsh pH 6.22±0.02 6.21±0.08 6.46±0.06Salinity (ppt) 24.58±0.98 22.80±1.29 20.10±0.99Vertical accretion (mm) 15.4±2.5 5.2±1.8 2.4±0.4Juncus Density (no/m2) 706.7±75.2 701.7±89.6 511.7±55.4
Juncus Biomass (g/m2) 988.6±122.5 718.2±83.0 557.18±55.4
Juncus community proportion 98.7% 100% 97.5%
Table 1: Edaphic and biological variables at low, mid, and high marsh plots following Hurricanes Gustav and Ike in 2008 (n=6 for each). Data are means ± 1SE.
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ECOLOGY OF TIDAL MARSH BIRDS ALONG THE MS/AL COAST
Drs. Mark Woodrey, Bob Cooper, Scott Rush
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Clapper Rail Response
www.flood.firetree.net
Current
1 m sea-level rise