Transcript LVS Training Presentation - Florida Department of Environmental

Florida Department of
Environmental Protection
Standards and Assessment
Linear Vegetation Survey (LVS)
Sampling Method
October 2012
Linear Vegetation Survey (LVS)
• The Stream and River Linear Vegetation
Survey (LVS) is a rapid tool to document
the plant community in a 100m stream
reach.
• DEP SOP FS 7320
• Conduct in conjunction with Stream and
River Habitat Assessment (SOP FT 3100)
and Rapid Periphyton Survey (RPS; SOP
FS 7230)
LVS Method Overview
• Establish 100m reach of stream
• Place flags every 10m to create 10 sections
100 90
80 70 60
50 40 30
20 10
10
9
8
7
6
100m
5
4
3
2
1
0
LVS Method Overview
• For each section, record:
– Plant taxa presence. Include submersed,
floating, emergent plants within the
wetted area of stream.
– Note dominant or co-dominant taxa if any
taxon is present with ≥ 1 m2 coverage (can
be in patches).
– Estimate total area of plant coverage (see
back of field sheet).
– Collect unknown taxa for ID by expert.
LVS Datasheet – FD 9000-32
Form FD 9000-32
FDEP Linear Stream Vegetation Survey (DEP SOP FS 7320)
Waterbody:
Date:
County:
Analyst:
Revised 6/12/12
Storet Number:
10% Macrophyte Coverage
Signature:
Comments:
2
Instructions: Note taxa growing in the water with a checkmark if present, "D" if dominant, and "C" if codominant (dominance only if 1 m of taxa present).
Note in the boxes below if no dominant are selected, and note total macrophyte abundance rank for each section. Only the most common taxa are listed,
so use blank spaces for additional taxa names.
Specime
n
collecte
d
(check)
Micranthemum glomeratum
Bacopa caroliniana
Micranthemum umbrosum
Bacopa monneri
Myriophyllum aquaticum
Bidens mitis
Najas guadelupensis
Boehmeria cylindrica
Nuphar luteum
Centella asiatica
Orontium aquaticum
Cephalanthus occidentalis
Panicum hemitomon
Ceratophyllum demersum
Panicum repens
Chara
Panicum rigidulum
Cicuta maculata
Pistia stratioides
Cladium jamaicense
Polygonum glabra
Colocasia esculenta
Polygonum hydropiperoides
Crinum americanum
Polygonum punctatum
Diodia virginiana
Pontedaria cordata
Eichhornia crassipes
Potamogeton illinoensis
Eleocharis (wispy viviparous)
Ruellia simplex
Hydrilla verticillata
Sacciolepis striata
Hydrocotle
Sagittaria kurziana
Hygrophila polysperma
Sagittaria lancifolia
Hymenocallis
Sagittaria latifolia
Itea virginica
Salix caroliniana
Lachnanthes caroliniana
Salvinia minima
Landoltia punctata
Samolus parviflora
Lemna
Saururus cernuus
Limnophila sessiflora
Typha
Ludwigia leptocarpa
Vallisneria americana
Ludwigia palustris
Zizania aquatica
Ludwigia peruviana
Ludwigia repens
Luziola fluitans
If no Dominant or Co-Dominant were
selected, indicate with an "X"
Indicate % cover macrophytes per section
0-5% Macrophyte Coverage
>5 and ≤10% Macrophyte Coverage
>10 and ≤25% Macrophyte Coverage
>25 and ≤50% Macrophyte Coverage
> 50% Macrophyte Coverage
90-100
60-70
80-90
70-80
50-60
40-50
20-30
30-40
HERBACEOUS SPECIES
Alternanthera philoxeroides
10-20
Meter Mark
0-10
90-100
60-70
80-90
70-80
50-60
40-50
20-30
30-40
10-20
HERBACEOUS SPECIES
0-10
Meter Mark
Specim
en
collecte
d
(check)
Backside has tool for estimating
percent cover for section
25% Macrophyte Coverage
50% Macrophyte Coverage
Eichhornia crassipes
Potamogeton illinoensis
Eleocharis (wispy viviparous)
Ruellia simplex
Hydrilla verticillata
Sacciolepis striata
Hydrocotle
Sagittaria kurziana
Hygrophila polysperma
Sagittaria lancifolia
LVS Datasheet – FD 9000-32
Hymenocallis
Sagittaria
latifolia
Form FD 9000-32
FDEP Linear Stream Vegetation Survey (DEP SOP
FS 7320)
Itea virginica
Waterbody:
Date:
Lachnanthes caroliniana
Analyst:
County:
Salvinia minima
Signature:
Landoltia punctata
Comments:
Revised 6/12/12
Salix caroliniana
Lemna
Storet Number:
Samolus parviflora
Saururus cernuus
Instructions: Note taxa growing in the water with a checkmark if present, "D" if dominant, and "C" if codominant (dominance only if 1 m 2 of taxa present).
Limnophila
sessiflora
Typha
Note in the boxes below
if no dominant
are selected, and note total macrophyte abundance rank for each
section. Only the most common taxa are listed,
so use blank spaces
for
additional
taxa
names.
Ludwigia leptocarpa
Vallisneria americana
Ludwigia repens
Alternanthera philoxeroides
Micranthemum glomeratum
Luziola fluitans
Bacopa caroliniana
Micranthemum umbrosum
Bacopa monneri
Myriophyllum aquaticum
Bidens mitis
Najas guadelupensis
Boehmeria cylindrica
Nuphar luteum
Centella asiatica
Orontium aquaticum
Cephalanthus occidentalis
Panicum hemitomon
Ceratophyllum demersum
If no Dominant or Co-Dominant were
Panicum repens
Chara
selected, indicate with an "X"
Panicum rigidulum
Indicate % cover macrophytes per section
Pistia stratioides
Cicuta maculata
0-5% Macrophyte Coverage
Cladium jamaicense
Polygonum glabra
>5 and ≤10% Macrophyte Coverage
Colocasia esculenta
Polygonum hydropiperoides
>10 and ≤25% Macrophyte Coverage
Crinum americanum
>25 and ≤50% Macrophyte Coverage
Polygonum punctatum
Diodia virginiana
> 50% Macrophyte Coverage
Pontedaria cordata
Eichhornia crassipes
Potamogeton illinoensis
Eleocharis (wispy viviparous)
Ruellia simplex
80-90
70-80
60-70
50-60
40-50
30-40
20-30
HERBACEOUS SPECIES
90-100
Meter Mark
Zizania aquatica
10-20
Specime
n
collecte
d
(check)
0-10
80-90
60-70
70-80
50-60
40-50
20-30
30-40
10-20
0-10
Ludwigia peruviana
HERBACEOUS SPECIES
90-100
Meter Mark
Ludwigia palustris
Specim
en
collecte
d
(check)
Include
submersed,
emergent
and floating
plants
Include Macroalgae in LVS
Macroalgae:
Nitella
Chara
Ok to note mosses, liverworts, but they do not have C of C scores
Liverworts
Sphagnum moss
Fontinalis
Use for Numeric Nutrient Criteria
• When used to determine floral health
associated with Ch. 62-302.531, F.A.C.:
– Perform the method only when the total
area of macrophytes equals or exceeds two
square meters within the wetted area of the
100 m sampling reach.
– Do not include trees or shrubs
– Calculate the mean Coefficient of
Conservatism (C of C) and % FLEPPC taxa
occurrences
Coefficient of Conservatism (C of C)
• Score of 0-10 assigned to a plant species based
on its ecological tolerances/fidelity to presettlement condition
• Subjective assignment of scores by regional
botanists with many years of experience with
plants in their habitats
• Establishment of scores creates an objective,
repeatable tool to assess the floristic condition;
works to compare sites or monitor over time
Use for Numeric Nutrient Criteria
Mean Coefficient of Conservatism (C of C)
• Mean C of C for LVS is weighted by taxon occurrence
• Presence of a taxon in a 10m segment is one
occurrence; max. # of occurrences for a taxon within
the 100m reach is ten
• For each taxon, multiply the C of C score by the
number of occurrences
• Calculate the Mean C of C as the sum of these
products divided by the total number of taxa
occurrences in the 100 m reach.
• C of C scores found in Table LT 7600
Use for Numeric Nutrient Criteria
FLEPPC Exotics
• FLEPPC is the Florida Exotic Pest Plant
Council
• Track and manage invasive exotic plants
• Keep lists of invasives that are displacing
native species, and changing community
structure and ecological function
• Categories 1 and 2 reflect the extent of the
ecological damage caused
Use for Numeric Nutrient Criteria
Percent FLEPPC exotics
• Calculate the percent invasive exotics as the
number of occurrences of FLEPPC Category
1 or 2 in the 100 m reach divided by the
total number of taxa occurrences in the 100
m reach.
• LT 7600 table contains nativity status;
FLEPPC website has Cat 1 and 2 lists:
http://www.fleppc.org/list/11list.html
Example Calculations
C of C
FLEPPC?
0
yes
X
4
4.5
no
3
0
yes
10
7
no
HERBACEOUS SPECIES
Alternanthera philoxeroides
X
X
Bacopa caroliniana
X
X
Colocasia esculenta
X
X
X
X
# obs/taxon
3
90-100
X
80-90
70-80
60-70
50-60
40-50
30-40
20-30
10-20
0-10
Meter Mark
Vallisneria americana
X
X
X
X
X
X
X
X
X
X
Observations per section
2
3
2
3
1
2
1
2
3
1
Total observations = 20
Mean C of C = ((3*0 + 4*4.5 + 3*0 + 10*7)/20) = 4.4
% FLEPPC = (3+3)/20 = 30%
Linear Vegetation Survey
• Use in support of numeric nutrient criteria
implementation described in Section 2.7 of
the Stream Condition Index Primer.
http://www.dep.state.fl.us/water/bioassess/docs/sci-primer.pdf
• Datasheet available on DEP website in pdf and
Excel versions (change taxa list for ease of use)
–
Thickness
http://www.dep.state.fl.us/water/sas/qa/forms.htm
Rank?