C The TIDE Project www.mbl.edu/tide Whole-ecosystem manipulations - - PDF document

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Aug 21, 2022 186 likes •283 views

Ecosystem Services C The TIDE Project www.mbl.edu/tide Whole-ecosystem manipulations in Plum Island Estuary, MA Target conc. NO 3 - : (70 uM; 1 mg/L) 15x reference creeks May September, Since 2004 Reference Creek System 8 Years after

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C

Ecosystem Services

SLIDE 2

Whole-ecosystem manipulations in Plum Island Estuary, MA Target conc. NO3

: (70 uM; 1 mg/L)

15x reference creeks May – September, Since 2004

The TIDE Project

www.mbl.edu/tide

Reference Creek System – 8 Years after experiment began

SLIDE 3

Peat Fractures P <0.01 Green = Enriched

Deegan et al. 2012 Nature

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Fertilized Creek System – 7 Years after experiment began P = 0.07 E n r i c h e d

Deegan et al. 2012 Nature

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Top 20 cm P = 0.08 Spartina alterniflora Reference

Deegan et al. 2012 Nature

Enriched P = 0.02 Reference Enriched

Deegan et al. 2012 Nature

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Source: Pennings 2012 Nature Toupee Fewer Roots

Reference Fertilized

Low marsh intact

>90% retention

3000 mol NO3

Low marsh intact

55% retention

23,000 mol NO3

Whole marsh nutrient retention

Year 2 of Enrichment >Year 10 of Enrichment Reference Fertilized

Low marsh LOSS

< 55% retention

Low marsh intact

>90% retention

HYPOTHESES Drake et al. 2009 - Ecology

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Nelson and Deegan, in review

(Fert/ref)

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Thank you

Collaborators Linda Deegan, Ph.D. John Fleeger, Ph.D. Scott Warren, Ph.D. Bruce Peterson, Ph.D. Sergio Fagherrazi, Ph.D. 15 others http://www.mbl.edu/tide/ For more information including publications and complete personnel list