Research and Monitoring Related to Sea Level Rise at the Grand Bay NERR
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Transcript of Research and Monitoring Related to Sea Level Rise at the Grand Bay NERR
Research and Monitoring Related to Sea Level Rise at the Grand Bay NERR
Will UnderwoodStewardship Coordinator
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
• 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
The YSI 6600 EDS Datasonde
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)
Long Term Monitoring• Erosion• Habitat
Mapping/Change• SAV• Invasive Species• Marsh Elevations
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.
Study AreaPercent change
-100 - -75-74 - -50-49 - -25-24 - 0
Irregularly-flooded marsh viability: 2009 to 2025
Study AreaPercent change
-100 - -75-74 - -50-49 - -25-24 - 0
Irregularly-flooded marsh viability: 2009 to 2050
Study AreaPercent change
-100 - -75-74 - -50-49 - -25-24 - 0
Irregularly-flooded marsh viability: 2009 to 2075
Study AreaPercent change
-100 - -75-74 - -50-49 - -25-24 - 0
Irregularly-flooded marsh viability: 2009 to 2100
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
• 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
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
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.
ECOLOGY OF TIDAL MARSH BIRDS ALONG THE MS/AL COAST
Drs. Mark Woodrey, Bob Cooper, Scott Rush
Clapper Rail Response
www.flood.firetree.net
Current
1 m sea-level rise