Prioritizing salt marsh restoration - - PDF document

prioritizing salt marsh restoration
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Prioritizing salt marsh restoration - - PDF document

Combining Economic and Ecological Indicators to Prioritize Salt Marsh Restoration Actions Marisa&Mazzo)a& Presented&at&Waquoit&Bay&Saltmarsh&Symposium& January&24,&2013 & &


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SLIDE 1

Combining Economic and Ecological Indicators to Prioritize Salt Marsh Restoration Actions

Marisa&Mazzo)a&

Presented&at&Waquoit&Bay&Saltmarsh&Symposium& January&24,&2013&

&

NSF/EPA(STAR(Grant(study( Marisa(Mazzo8a,(Jim(Opaluch,(Rob(Johnston,(Gisele(Magnusson,(( Frank(Golet,(Pete(August,(University(of(Rhode(Island(

&

Prioritizing salt marsh restoration

QuesAon:&How&should&we&spend&limited& restoraAon&budgets&to&maximize&ecosystem& services&and&benefits?&

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2"

photo:&Save&the&Bay&

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SLIDE 2

What do we need to know?

  • 1. How&do&restoraAon&acAons&

change&wetland&services?&

  • 2. How&do&changes&in&services&

affect&people’s&values?&

3"

Photo:&Save&the&Bay,&RI& Photo:&&John&Repoza&

Question 1: How do restoration actions change wetland services?

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Specific&RestoraAon&AcAons&–&remove& Adal&restricAons,&change&elevaAons,& change&vegetaAon,&add&buffers& Δ Marsh&CondiAon:&Tidal&flow,& vegetaAon,&marsh&size,&salinity,&water& depth,&etc.& Δ&Bird&and&fish&habitat&quality:&fish& passage&and&spawning,&bird&nesAng&and& foraging,&food&sources,&shellfish&beds,& etc.&

Photos&from&Save&the&Bay,&RI&

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SLIDE 3

Expert survey objective

EsAmate&ecological&producAon&funcAon&& habitat&quality&species&=&f(site&and&loca5on&features)& & &using&readily&available&data& &

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Expert survey

6"

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SLIDE 4

Question 2: How do changes in services affect people’s values?

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Δ Catch&rates,&viewing&opportuniAes,& and&nonuse&services&& Δ&Social&Benefits&from&fishing,&bird& watching,&and&nonuse&values& Δ&Bird&and&fish&habitat&quality:&fish& passage&and&spawning,&bird&nesAng&and& foraging,&food&sources,&shellfish&beds,& etc.& Δ PopulaAons&of&birds&and&fish&

Public survey

8" 1.##O N#THIS#PAGE,#CO MPARE#RESTO RATIO N#PLANS#1#AND#2#AND#VO TE# BELO W#FO R#THE#PLAN#YO U#PREFER:

! I"choose" RESTO RATIO N"PLAN"1 ($ 20"per"year) ! I"choose" NEITHER"PLAN ($0"per"year) ! I"choose" RESTO RATIO N"PLAN"2 ($ 20"per"year) ! I"choose" RESTO RATIO N"PLAN"1 ($ 20"per"year) ! I"choose" NEITHER"PLAN ($0"per"year) ! I"choose" RESTO RATIO N"PLAN"2 ($ 20"per"year)

Check#one#box:

Improvement:"gains"from"restoration* (0= no"improvement,"10= highest): Improvement:"gains"from"restoration* (0= no"improvement,"10= highest): Ecological#Improvement#to#RI#

Bird"Populations*

Ecological#Improvement#to#RI#

Bird"Populations*

Ecological#Improvement#to#RI#

Fish"Populations*

Ecological#Improvement#to#RI#

Fish"Populations*

Ecological#Improvement#to#RI#

Shellfish"Populations*

Ecological#Improvement#to#RI#

Shellfish"Populations*

Potential#to#Control#Mosquito" Nuisance* Potential#to#Control#Mosquito" Nuisance* Access#for#Recreation

Size"of#Salt#Marsh

Annual#Cost"of#the#Plan#to YO UR#HO USEHO LD Annual#Cost"of#the#Plan#to YO UR#HO USEHO LD *#As#judged#by#wetland#experts,#compared#to#all#other#potential#salt#marsh# restoration#projects#in#Rhode#Island. *#As#judged#by#wetland#experts,#compared#to#all#other#potential#salt#marsh# restoration#projects#in#Rhode#Island.

$

$20#PER#YEAR#IN HIGHER#STATE TAXES $20#PER#YEAR#IN HIGHER#STATE TAXES

3#Acres 9#Acres Viewing#platforms &#no#trails no#access 1 2 2 7 1 2 4 2 Restoration"Plan"# 1 Restoration"Plan"# 2

X

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SLIDE 5

Combining expert and public survey results to evaluate restoration projects

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Restora2on"Site"1"

widen&Adal&inlet;&restore&creeks;&remove&dredge& spoils;&restore&vegetaAon&

Habitat"Index:" Before" A@er" Birds& 2.1& 3.1& Fish& 2.0& 3.1& Shellfish& 2.5& 2.9& Change"in"Value"Index" 1.4"

Restora2on"Site"2"

create&new&connector&channel&to&exisAng&Adal& channel&

Habitat"Index:" Before" A@er" Birds& 2.7& 3.1& Fish& 1.6& 2.8& Shellfish& 2.3& 2.8& Change"in"Value"Index" 0.75"

Photos(from(Save(the(Bay,(RI(

Ways to use this type of model

EsAmate&greatest&social&benefit&from&a& restoraAon&budget&(economists’& preferred&approach)&

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10"

  • JusAfy&funding&for&

selected&sites&

  • Return&on&investment&
  • Discoursecbased&

decisions& (real&world&approaches)&

& &

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SLIDE 6

Thank you!

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mazzo)a.marisa@epa.gov&