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Habitat edge effects decrease litter accumulation and increase litter decomposition in coastal salt marshes

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Abstract

Context

Habitat fragmentation is known to be one of the leading causes of species extinctions, however few studies have explored how habitat fragmentation impacts ecosystem functioning and carbon cycling, especially in wetland ecosystems.

Objectives

We aimed to determine how habitat fragmentation, defined by habitat area and distance from habitat edge, impacts the above-ground carbon cycling and nutrient stoichiometry of a foundation species in a coastal salt marsh.

Methods

We conducted our research in a salt marsh in the Mid-Atlantic United States, where the foundation grass species Spartina patens is being replaced by a more flood-tolerant grass, leading to highly fragmented habitat patches. We quantified decomposition rates, live biomass, and litter accumulation of S. patens at patch edges and interiors. Additionally, we measured relevant characteristics (e.g., habitat area, elevation, microclimate) of S. patens patches.

Results

Habitat edge effects, and not habitat area effects, had distinct impacts on ecosystem functioning. Habitat edges had less litter accumulation, faster decomposition rates, a warmer and drier microclimate, and lower elevations than patch interiors. Patches with low elevation edges had the fastest decomposition rates, while interiors of patches at any elevation had the slowest decomposition rates. Notably, these impacts were not driven by changes in primary production.

Conclusion

Habitat fragmentation impacts the above-ground carbon cycling of S. patens in coastal wetlands by altering litter decomposition, but not primary production, through habitat edge effects. Future research should investigate whether this pattern scales across broader landscapes and if it is observable in other wetland ecosystems.

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References

  • Baltzer JL, Veness T, Chasmer LE, Sniderhan AE, Quinton WL (2014) Forests on thawing permafrost: fragmentation, edge effects, and net forest loss. Glob Chang Biol 20(3):824–834

    PubMed  Google Scholar 

  • Barbier EB, Hacker SD, Kennedy C, Koch EW, Stier AC, Silliman BR (2011) The value of estuarine and coastal ecosystem services. Ecol Monogr 81(2):169–193

    Google Scholar 

  • Barros HS, Fearnside PM (2016) Soil carbon stock changes due to edge effects in central Amazon forest fragments. For Ecol Manag 379:30–36

    Google Scholar 

  • Bertness MD (1991) Zonation of Spartina patens and Spartina alterniflora in New England salt marsh. Ecology 72(1):138–148

    Google Scholar 

  • Bradford MA, Berg B, Maynard DS, Wieder WR, Wood SA (2016) Understanding the dominant controls on litter decomposition. J Ecol 104(1):229–238

    CAS  Google Scholar 

  • Buffam I, Carpenter SR, Yeck W, Hanson PC, Turner MG (2010) Filling holes in regional carbon budgets: Predicting peat depth in a north temperate lake district. J Geophys Res 115(G1)

  • Burke DJ, Hamerlynck EP, Hahn D (2002) Effect of arbuscular mycorrhizae on soil microbial populations and associated plant performance of the salt marsh grass Spartina patens. Plant Soil 239(1):141–154

    CAS  Google Scholar 

  • Carey JC, Raposa KB, Wigand C, Warren RS (2017) Contrasting decadal-scale changes in elevation and vegetation in two long island sound salt marshes. Estuaries Coasts 40(3):651–661.

    CAS  PubMed  Google Scholar 

  • Chen J, Franklin JF, Spies TA (1995) Growing-season microclimatic gradients from clearcut edges into old-growth Douglas-fir forests. Ecol Appl 5(1):74–86.

    Google Scholar 

  • Chmura GL (2013) What do we need to assess the sustainability of the tidal salt marsh carbon sink? Ocean Coast Manag 83:25–31

    Google Scholar 

  • Chmura GL, Hung GA (2004) Controls on salt marsh accretion: a test in salt marshes of Eastern Canada. Estuaries 27(1):70–81

    Google Scholar 

  • Chmura GL, Anisfeld SC, Cahoon DR, Lynch JC (2003) Global carbon sequestration in tidal, saline wetland soils. Glob Biogeochem Cycles 17(4)

  • Crockatt ME, Bebber DP (2015) Edge effects on moisture reduce wood decomposition rate in a temperate forest. Glob Chang Biol 21(2):698–707

    PubMed  Google Scholar 

  • Denno RF (1983) Tracking variable host plants in space and time. Var Plants Herbiv Nat Manag Syst 291–341

  • Denno RF, Roderick GK (1991) Influence of patch size, vegetation texture, and host plant architecture on the diversity, abundance, and life history styles of sapfeeding herbivores. Habitat structure. Springer, Berlin, pp 169–196

    Google Scholar 

  • Denno RF, Gratton C, Peterson MA, Langellotto GA, Finke DL, Huberty AF (2002) Bottom-up forces mediate natural-enemy impact in a phytophagous insect community. Ecology 83(5):1443–1458

    Google Scholar 

  • d’Entremont TW, Lopez-Gutierrez JC, Walker AK (2018) Examining Arbuscular Mycorrhizal Fungi in Saltmarsh Hay (Spartina patens) and Smooth Cordgrass (Spartina alterniflora) in the Minas Basin, Nova Scotia. Northeast Nat 25(1):72–86

    Google Scholar 

  • DiQuinzio DA, Paton PWC, Eddleman WR (2002) Nesting ecology of Saltmarsh Sharp-tailed Sparrows in a tidally restricted salt marsh. Wetlands 22(1):179–185.

    Google Scholar 

  • Donnelly JP, Bertness MD (2001) Rapid shoreward encroachment of salt marsh cordgrass in response to accelerated sea-level rise. Proc Natl Acad Sci 98(25):14218–14223

    CAS  PubMed  Google Scholar 

  • Elsey-Quirk T, Seliskar DM, Sommerfield CK, Gallagher JL (2011) Salt marsh carbon pool distribution in a mid-Atlantic lagoon, USA: sea level rise implications. Wetlands 31(1):87–99

    Google Scholar 

  • Fahrig L (2003) Effects of habitat fragmentation on biodiversity. Annu Rev Ecol Evol Syst 34(1):487–515

    Google Scholar 

  • Fletcher RJ, Ries L, Battin J, Chalfoun AD (2007) The role of habitat area and edge in fragmented landscapes: definitively distinct or inevitably intertwined? Can J Zool 85(10):1017–1030

    Google Scholar 

  • Foote AL, Reynolds KA (1997) Decomposition of saltmeadow cordgrass (Spartina patens) in Louisiana coastal marshes. Estuaries 20(3):579–588.

    Google Scholar 

  • Frasco BA, Good RE (1982) Decomposition dynamics of Spartina alterniflora and Spartina patens in a New Jersey salt marsh. Am J Bot 69(3):402–406

    Google Scholar 

  • Gedan KB, Bertness MD (2010) How will warming affect the salt marsh foundation species Spartina patens and its ecological role? Oecologia 164(2):479–487

    PubMed  Google Scholar 

  • Gittman RK, Fodrie FJ, Baillie CJ, Brodeur MC, Currin CA, Keller DA, Kenworthy MD, Morton JP, Ridge JT, Zhang YS (2018) Living on the edge: increasing patch size enhances the resilience and community development of a restored salt marsh. Estuaries Coast 41(3):884–895.

    Google Scholar 

  • Goyette J-O, Bennett EM, Maranger R (2019) Differential influence of landscape features and climate on nitrogen and phosphorus transport throughout the watershed. Biogeochemistry 142(1):155–174

    CAS  Google Scholar 

  • Halupa PJ, Howes BL (1995) Effects of tidally mediated litter moisture content on decomposition of Spartina alterniflora and S. patens. Mar Biol 123(2):379–391.

    Google Scholar 

  • Harrell FE Jr (2019) Package ‘Hmisc’ CRAN2018:235–236

    Google Scholar 

  • Harper KA, Macdonald SE, Burton PJ, Chen J, Brosofske KD, Saunders SC, Euskirchen ES, Roberts DAR, Jaiteh MS, Esseen P-A (2005) Edge influence on forest structure and composition in fragmented landscapes. Conserv Biol 19(3):768–782

    Google Scholar 

  • Johnson DS, Williams BL (2017) Sea level rise may increase extinction risk of a saltmarsh ontogenetic habitat specialist. Ecol Evol 7(19):7786–7795.

    PubMed  PubMed Central  Google Scholar 

  • Jones JA, Cherry JA, McKee KL (2016) Species and tissue type regulate long-term decomposition of brackish marsh plants grown under elevated CO2 conditions. Estuarine Coast Shelf Sci 169:38–45.

    CAS  Google Scholar 

  • Kennish MJ, Fertig BM, Petruzzelli G (2012) Emergent vegetation: NERR SWMP tier 2 salt marsh monitoring in the Jacques Cousteau National Estuarine Research Reserve. National Estuarine Research Reserve Program (NOAA) Report, Institute of Marine and Coastal Sciences. Rutgers University, New Brunswick

    Google Scholar 

  • Kleinen T, Brovkin V, Schuldt RJ (2012) A dynamic model of wetland extent and peat accumulation: results for the Holocene. Biogeosciences 9(1):235–248

    Google Scholar 

  • Laurance WF (2008) Theory meets reality: how habitat fragmentation research has transcended island biogeographic theory. Biol Conserv 141(7):1731–1744.

    Google Scholar 

  • Laurance WF, Lovejoy TE, Vasconcelos HL, Bruna EM, Didham RK, Stouffer PC, Gascon C, Bierregaard RO, Laurance SG, Sampaio E (2002) Ecosystem decay of amazonian forest fragments: a 22-year investigation. Conserv Biol 16(3):605–618.

    Google Scholar 

  • Li Q, Chen J, Song B, LaCroix JJ, Bresee MK, Radmacher JA (2007) Areas influenced by multiple edges and their implications in fragmented landscapes. For Ecol Manag 242(2–3):99–107

    Google Scholar 

  • Locky DA, Bayley SE (2007) Effects of logging in the southern boreal peatlands of Manitoba, Canada. Can J For Res 37(3):649–661

    Google Scholar 

  • Maltby E, Acreman MC (2011) Ecosystem services of wetlands: pathfinder for a new paradigm. Hydrol Sci J 56(8):1341–1359.

    Google Scholar 

  • Martinson HM, Fagan WF, Denno RF (2012) Critical patch sizes for food-web modules. Ecology 93(8):1779–1786

    PubMed  Google Scholar 

  • Mcleod E, Chmura GL, Bouillon S, Salm R, Björk M, Duarte CM, Lovelock CE, Schlesinger WH, Silliman BR (2011) A blueprint for blue carbon: toward an improved understanding of the role of vegetated coastal habitats in sequestering CO2. Front Ecol Environ 9(10):552–560

    Google Scholar 

  • Menéndez M, Sanmartí N (2007) Geratology and decomposition of Spartina versicolor in a brackish Mediterranean marsh. Estuarine Coast Shelf Sci 74(1):320–330.

    Google Scholar 

  • Mitchell EA, Gilbert D, Buttler A, Amblard C, Grosvernier P, Gobat J-M (2003) Structure of microbial communities in Sphagnum peatlands and effect of atmospheric carbon dioxide enrichment. Microb Ecol 46(2):187–199

    CAS  PubMed  Google Scholar 

  • Moreno ML, Bernaschini ML, Pérez-Harguindeguy N, Valladares G (2014) Area and edge effects on leaf-litter decomposition in a fragmented subtropical dry forest. Acta Oecol 60:26–29

    Google Scholar 

  • Murphy SM, Battocletti AH, Tinghitella RM, Wimp GM, Ries L (2016) Complex community and evolutionary responses to habitat fragmentation and habitat edges: what can we learn from insect science? Curr Opin Insect Sci 14:61–65

    PubMed  Google Scholar 

  • Nahlik AM, Fennessy MS (2016) Carbon storage in US wetlands. Nat Commun 7:ncomms13835.

    Google Scholar 

  • Nguyen HDD, Nansen C (2018) Edge-biased distributions of insects. A review. Agron Sustain Dev 38(1):11.

    Google Scholar 

  • Palik B, Batzer DP, Kern C (2006) Upland forest linkages to seasonal wetlands: litter flux, processing, and food quality. Ecosystems 9(1):142–151

    Google Scholar 

  • Raghukumar S (2017) Fungi in coastal and oceanic marine ecosystems: marine fungi. Springer, Berlin

    Google Scholar 

  • Ries L, Fletcher RJ Jr, Battin J, Sisk TD (2004) Ecological responses to habitat edges: mechanisms, models, and variability explained. Annu Rev Ecol Evol Syst 35:491–522

    Google Scholar 

  • Riutta T, Slade EM, Bebber DP, Taylor ME, Malhi Y, Riordan P, Macdonald DW, Morecroft MD (2012) Experimental evidence for the interacting effects of forest edge, moisture and soil macrofauna on leaf litter decomposition. Soil Biol Biochem 49:124–131

    CAS  Google Scholar 

  • Rutledge DT, Miller CJ (2006) The use of landscape indices in studies of the effects of habitat loss and fragmentation. Naturschutz Landschaftsplanung 38(10/11):300

    Google Scholar 

  • Rytter L, Šlapokas T, Granhall U (1989) Woody biomass and litter production of fertilized grey alder plantations on a low-humified peat bog. For Ecol Manag 28(3–4):161–176

    Google Scholar 

  • Snedden GA, Cretini K, Patton B (2015) Inundation and salinity impacts to above-and belowground productivity in Spartina patens and Spartina alterniflora in the Mississippi River deltaic plain: Implications for using river diversions as restoration tools. Ecol Eng 81:133–139

    Google Scholar 

  • Sottocornola M, Laine A, Kiely G, Byrne KA, Tuittila E-S (2009) Vegetation and environmental variation in an Atlantic blanket bog in South-western Ireland. Plant Ecol 203(1):69

    Google Scholar 

  • Treplin M, Pennings SC, Zimmer M (2013) Decomposition of leaf litter in a US Saltmarsh is driven by dominant species. Not Species Complement Wetl 33(1):83–89

    Google Scholar 

  • Valiela I, Teal JM (1979) The nitrogen budget of a salt marsh ecosystem. Nature 280(5724):652–656

    CAS  Google Scholar 

  • Valiela I, Teal JM, Allen SD, Van Etten R, Goehringer D, Volkmann S (1985) Decomposition in salt marsh ecosystems: the phases and major factors affecting disappearance of above-ground organic matter. J Exp Mar Biol Ecol 89(1):29–54.

    CAS  Google Scholar 

  • Ward SE, Ostle NJ, Oakley S, Quirk H, Henrys PA, Bardgett RD (2013) Warming effects on greenhouse gas fluxes in peatlands are modulated by vegetation composition. Ecol Lett 16(10):1285–1293

    PubMed  Google Scholar 

  • Warren RS, Niering WA (1993) Vegetation change on a northeast tidal marsh: interaction of sea-level rise and marsh accretion. Ecology 74(1):96–103.

    Google Scholar 

  • Watson EB, Szura K, Wigand C, Raposa KB, Blount K, Cencer M (2016) Sea level rise, drought and the decline of Spartina patens in New England marshes. Biol Conserv 196:173–181

    Google Scholar 

  • Watts AC (2013) Organic soil combustion in cypress swamps: moisture effects and landscape implications for carbon release. For Ecol Manag 294:178–187.

    Google Scholar 

  • Watts AC, Kobziar LN, Snyder JR (2012) Fire reinforces structure of pondcypress. Domes Wetl Landsc Wetl 32(3):439–448.

    Google Scholar 

  • West BT, Welch KB, Galecki AT (2014) Linear mixed models: a practical guide using statistical software. Chapman and Hall, London

    Google Scholar 

  • White DA, Trapani JM (1982) Factors incluencing disappearances of Spartina Alterniflora from litterbags. Ecology 242–245

  • Williams B, Silcock D, Young M (1999) Seasonal dynamics of N in two Sphagnum moss species and the underlying peat treated with 15NH415NO3. Biogeochemistry 45(3):285–302

    Google Scholar 

  • Williams BL, Silcock DJ (1997) Nutrient and microbial changes in the peat profile beneath sphagnum magellanicum in response to additions of ammonium nitrate. J Appl Ecol 34(4):961

    CAS  Google Scholar 

  • Wilson JO (1985) Decomposition of [14C] lignocelluloses of Spartina alterniflora and a comparison with field experiments. Appl Environ Microbiol 49(3):478–484

    CAS  PubMed  PubMed Central  Google Scholar 

  • Wimp GM, Murphy SM, Lewis D, Ries L (2011) Do edge responses cascade up or down a multi-trophic food web? Ecol Lett 14(9):863–870

    PubMed  Google Scholar 

  • Wimp GM, Ries L, Lewis D, Murphy SM (2019) Habitat edge responses of generalist predators are predicted by prey and structural resources. Ecology 100(6):e02662

    PubMed  Google Scholar 

  • Windham L (2001) Comparison of biomass production and decomposition between Phragmites australis (common reed) and Spartina patens (salt hay grass) in brackish tidal marshes of New Jersey, USA. Wetlands 21(2):179–188

    Google Scholar 

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Acknowledgements

We thank the students and research technicians that aided in the fieldwork and lab work of this project. We also thank Georgetown University’s Ecology, Evolution, and Behavior Group and the anonymous reviewers for comments on previous versions of this manuscript that greatly improved it. Research was supported by Georgetown University’s Raines Fellowship to EOM.

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  1. Tyler M. Rippel and Eric Q. Mooring have contributed equally.

Authors and Affiliations

  1. Department of Biology, Georgetown University, 3700 O St NW, Washington, DC, 20057, USA

    Tyler M. Rippel, Eric Q. Mooring, Jewel Tomasula & Gina M. Wimp

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  1. Tyler M. Rippel
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Rippel, T.M., Mooring, E.Q., Tomasula, J. et al. Habitat edge effects decrease litter accumulation and increase litter decomposition in coastal salt marshes. Landscape Ecol 35, 2179–2190 (2020). https://doi.org/10.1007/s10980-020-01108-3

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