Abstract
The vulnerability of seagrass ecosystems, and the services they provide, to damage and loss from anthropogenic stressors has led to a surge of interest in understanding their resilience . This chapter examines patterns of change in tropical and temperate Australian seagrasses to identify underlying causes of the observed patterns. It then relates seagrass dynamics to ecosystem resilience, and examines how resilience can be measured, managed and enhanced. Seagrasses in tropical waters show strong seasonal patterns in many places, with seagrass extent and cover increasing during the winter dry season and decreasing during the summer wet season. This seasonality is overlaid by a striking longer term trend of increase during El Niño periods and subsequent loss during wetter, stormier La Niña periods. Seasonality is less evident in temperate waters, where mapping of dynamics has generally been used to show longer term patterns, especially large-scale loss after decades of stability, sometimes with partial recovery. Changes in some places have been linear and in others strongly non-linear, possibly indicative of systems breaching a threshold or tipping point in levels of stressors such as pollutants. Resilience theory has become a powerful tool for understanding the dynamics of seagrass change. Seagrass resilience requires several key traits: genetic and species diversity, good water quality , connected ecosystems and continuous habitats, and balanced trophic interactions . These traits are integrated through ecological feedbacks . In Zostera muelleri meadows, for example, the capacity for seagrass to resist decline during pulses of poor water quality depends on its ability to: (1) efficiently remove excessive nutrients from the water, thereby limiting phytoplankton growth and improving water clarity , (2) suppress resuspension of sediment for improved water clarity , and (3) provide habitat for grazing animals that remove epiphytic algae . The increased understanding of resilience is shifting the focus of seagrass ecosystem management towards the management of stressors to optimise key feedbacks, and thus ultimately to enhance resilience. The chapter culminates in descriptions of practical management actions demonstrated to effectively enhance key traits and overall seagrass resilience.
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Ball D, Soto-Berelov M, Young P (2014) Historical seagrass mapping in Port Phillip Bay, Australia. J Coast Conserv 18:257–272
Birch WR, Birch M (1984) Succession and pattern of tropical intertidal seagrasses in Cockle Bay, Queensland, Australia—a decade of observations. Aquat Bot 19:343–367
Blake S, Ball D (2001) Victorian marine habitat database seagrass mapping of Western Port. Marine and Freshwater Resources Institute, Victoria
Bulthuis DA, Axelrad DM, Mickelson MJ (1992) Growth of the seagrass Heterozostera tasmanica limited by nitrogen in Port Phillip Bay, Australia. Mar Eco Prog Ser 89:269–275
Burkholder JM, Tomasko DA, Touchette BW (2007) Seagrasses and eutrophication. J Exp Mar Biol Ecol 350:46–72
Campbell SJ, McKenzie LJ (2004) Flood related loss and recovery of intertidal seagrass meadows in southern Queensland, Australia. Estuar Coast Shelf S 60:477–490
Campbell SJ, McKenzie LJ, Kerville SP, Bite JS (2007) Patterns in tropical seagrass photosynthesis in relation to light, depth and habitat. Estuar Coast Shelf S 73:551–562
Coles RG, Rasheed MA, McKenzie LJ, Grech A, York PH, Sheaves M, McKenna S, Bryant C (2015) The Great Barrier Reef World Heritage Area seagrasses: Managing this iconic Australian ecosystem resource for the future. Estuar Coast Shelf Sci 153:A1–A12
Connolly RM (2012) Seagrass. In: Poloczanska ES, Hobday AJ, Richardson AJ (eds) A marine climate change impacts and adaptation report card for Australia. NCCARF Publication, Canberra
Cunha AH, Santos RP (2009) The use of fractal geometry to determine the impact of inlet migration on the dynamics of a seagrass landscape. Estuar Coast Shelf S 84:584–590
Duarte CM, Conley DJ, Carstensen J, Sanchez-Camacho M (2009) Return to Neverland: shifting baselines affect eutrophication restoration targets. Estuar Coast 32:29–36
Duarte CM, Borja A, Carstensen J, Elliott D, Krause-Jensen D, Marbà N (2014) Paradigms in the recovery of estuarine and coastal ecosystems. Estuar Coast 1–11
Eklöf JS, McMahon K, Lavery PS (2010) Effects of multiple disturbances in seagrass meadows: shading decreases resilience to grazing. Mar Freshwater Res 60:1317–1327
Folke C, Carpenter S, Walker B, Scheffer M, Elmqvist T, Gunderson L, Holling CS (2004) Regime shifts, resilience, and biodiversity in ecosystem management. Annu Rev Ecol Evol Syst 35:557–581
Fonseca MS, Bell SS (1998) Influence of physical setting on seagrass landscapes near Beaufort, North Carolina, USA. Mar Eco Prog Ser 171:109–121
Fraser MW, Kendrick GA, Statton J, Hovey RK, Zavala-Perez A, Walker DI (2014) Extreme climate events lower resilience of foundation seagrass at edge of biogeographical range. J Ecol 102:1528–1536
Gilby BL, Olds AD, Connolly RM, Stevens T, Henderson CJ, Maxwell PS, Tibbetts IR, Schoeman DS, Rissik D, Schlacher TA (2016) Optimising land-sea management for inshore coral reefs. PLoS ONE 11:e0164934
Grech A, Coles R, Marsh H (2011) A broad-scale assessment of the risk to coastal seagrasses from cumulative threats. Mar Policy 35:560–567
Gunderson LH (2000) Ecological resilience—in theory and application. Annu Rev Ecol Syst 31:425–439
Henderson CJ, Olds AD, Lee SY, Gilby BL, Maxwell PS, Connolly RM, Stevens T (2017) Marine reserves and seascape context shape fish assemblages in seagrass ecosystems. Mar Ecol Prog Ser 566:135–144
Hirst AJ, Longmore AR, Ball D, Cook PLM, Jenkins GP (2016) Linking nitrogen sources utilised by seagrass in a temperate marine embayment to patterns of seagrass change during drought. Mar Ecol Prog Ser 549:79–88
Hughes TP, Bellwood DR, Folke C, Steneck RS, Wilson J (2005) New paradigms for supporting the resilience of marine ecosystems. Trends Ecol Evol 20:380–386
Hughes TP, Linares C, Dakos V, van de Leemput IA, van Nes EH (2013) Living dangerously on borrowed time during slow, unrecognized regime shifts. Trends Ecol Evol 28:149–155
Jenkins GP, Syme A, Macreadie PI (2011) Feeding ecology of King George whiting Sillaginodes punctatus (Perciformes) recruits in seagrass and unvegetated habitats. Does diet reflect habitat utilization? J Fish Biol 78:1561–1573
Jenkins G, Keough M, Ball D, Cook P, Ferguson A, Gay J, Hirst A, Lee R, Longmore A, Macreadie P, Nayar S, Sherman C, Smith T, Ross J, York P (2015) Seagrass resilience in Port Phillip Bay. Final report to the eagrass and reefs program for Port Phillip Bay, Victoria
Kendrick GA, Hegge BJ, Wyllie A, Davidson A, Lord DA (2000) Changes in seagrass cover on Success and Parmelia Banks, Western Australia between 1965 and 1995. Estuar Coast Shelf Sci 50:341–353
Kendrick GA, Waycott M, Carruthers TJB, Cambridge ML, Hovey R, Krauss SL, Lavery PS, Les DH, Lowe RJ, Vidal OMI, Ooi JLS, Orth RJ, Rivers DO, Ruiz-Montoya L, Sinclair EA, Statton J, van Dijk JK, Verduin JJ (2012) The central role of dispersal in the maintenance and persistence of seagrass populations. Bioscience 62:56–65
Kilminster K, McMahon K, Waycott M, Kendrick GA, Scanes P, McKenzie L, O’Brien KR, Lyons M, Ferguson A, Maxwell P, Glasby T, Udy J (2015) Unravelling complexity in seagrass systems for management: Australia as a microcosm. Sci Total Environ 534:97–109
Kirkman HUGH (2014) Impact of proposed Port of Hastings expansion on seagrass, mangroves and salt marsh. Victorian National Parks Association, Victoria
Lanyon JM, Marsh H (1995) Temporal changes in the abundance of some tropical intertidal seagrasses in North Queensland. Aquat Bot 49:217–237
Larkum AWD, West RJ (1990) Long-term changes of seagrass meadows in Botany-Bay, Australia. Aquat Bot 37:55–70
Lee RS, Black KP, Bosserel C, Greer D (2012) Present and future prolonged drought impacts on a large temperate embayment: Port Phillip Bay, Australia. Ocean Dynam 62:907–922
Macreadie PI, Hindell JS, Keough MJ, Jenkins GP, Connolly RM (2010) Resource distribution influences positive edge effects in a seagrass fish. Ecology 91:2013–2021
Macreadie PI, York PH, Sherman CD (2014a) Resilience of Zostera muelleri seagrass to small-scale disturbances: the relative importance of asexual versus sexual recovery. Ecol Evol 4:450–461
Macreadie PI, York PH, Sherman CDH, Keough MJ, Ross DJ, Ricart AM, Smith TM (2014b) No detectable impact of small-scale disturbances on ‘blue carbon’ within seagrass beds. Mar Biol 161:2939–2944
Maxwell PS, Pitt KA, Burfeind DD, Olds AD, Babcock RC, Connolly RM (2014) Phenotypic plasticity promotes persistence following severe events: physiological and morphological responses of seagrass to flooding. J Ecol 102:54–64
Maxwell PS, Pitt KA, Olds AD, Rissik D, Connolly RM (2015) Identifying habitats at risk: simple models can reveal complex ecosystem dynamics. Ecol Appl 25:573–587
Maxwell PS, Eklof JS, van Katwijk MM, O’Brien KR, de la Torre-Castro M, Bostrom C, Bouma TJ, Krause-Jensen D, Unsworth RK, van Tussenbroek BI, van der Heide T (2017) The fundamental role of ecological feedback mechanisms for the adaptive management of seagrass ecosystems—a review. Biol Rev 92:1521–1538
McKenna S, Jarvis J, Sankey T, Reason C, Coles R, Rasheed M (2015) Declines of seagrasses in a tropical harbour, North Queensland, Australia, are not the result of a single event. J Biosciences 40:389–398
McKenzie LJ, Unsworth RKF (2009) Reef rescue marine monitoring program: intertidal seagrass, final report 2008/2009. Fisheries Queensland, Cairns
McMahon K, van Dijk KJ, Ruiz-Montoya L, Kendrick GA, Krauss SL, Waycott M, Verduin J, Lowe R, Statton J, Brown E, Duarte C (2014) The movement ecology of seagrasses. Proc Biol Sci 281:20140878
Mellors JE, Marsh H, Coles R (1993) Intra-annual changes in seagrass standing crop, Green Island, Northern Queensland. Mar Freshw Res 44:33–41
Nyström M, Norstrom AV, Blenckner T, de la Torre-Castro M, Eklof JS, Folke C, Osterblom H, Steneck RS, Thyresson M, Troell M (2012) Confronting feedbacks of degraded marine ecosystems. Ecosystems 15:695–710
Poiner I, Walker D, Coles R (1989) Regional studies—seagrasses of tropical Australia. In: Larkum AWD, McComb AJ, Shepherd SA (eds) Biology of seagrasses: a treatise on the biology of seagrasses with special reference to the Australian region. Elsevier, Amsterdam, pp 279–303
Preen AR, Long WJL, Coles RG (1995) Flood and cyclone related loss, and partial recovery, of more than 1000 km2 of seagrass in Hervey-Bay, Queensland, Australia. Aquat Bot 52:3–17
Rasheed MA, Unsworth RKF (2011) Long-term climate-associated dynamics of a tropical seagrass meadow: implications for the future. Mar Ecol Prog Ser 422:93–103
Rasheed MA, McKenna SA, Carter AB, Coles RG (2014) Contrasting recovery of shallow and deep water seagrass communities following climate associated losses in tropical north Queensland, Australia. Mar Pollut Bull 83:491–499
Saunders MI, Bayraktarov E, Roelfsema CM, Leon JX, Samper-Villarreal J, Phinn SR, Lovelock CE, Mumby PJ (2015) Spatial and temporal variability of seagrass at Lizard Island, Great Barrier Reef. Bot Mar 58:35–49
Smith TM, Hindell JS, Jenkins GP, Connolly RM, Keough MJ (2011) Edge effects in patchy seagrass landscapes: the role of predation in determining fish distribution. J Exp Mar Biol Ecol 399:8–16
Soissons LM, Han Q, Li B, van Katwijk MM, Ysebaert T, Herman PM, Bouma TJ (2014) Cover versus recovery: contrasting responses of two indicators in seagrass beds. Mar Pollut Bull 87:211–219
Stafford-Bell RE, Chariton AA, Robinson RW (2015) Prolonged buoyancy and viability of Zostera muelleri Irmisch ex Asch vegetative fragments indicate a strong dispersal potential. J Exp Mar Biol Ecol 464:52–57
Standish RJ, Hobbs RJ, Mayfield MM, Bestelmeyer BT, Suding KN, Battaglia LL, Eviner V, Hawkes CV, Temperton VM, Cramer VA, Harris JA, Funk JL, Thomas PA (2014) Resilience in ecology: abstraction, distraction, or where the action is? Biol Conserv 177:43–51
Suykerbuyk W, Bouma TJ, van der Heide T, Faust C, Govers LL, Giesen WB, de Jong DJ, van Katwijk MM (2012) Suppressing antagonistic bioengineering feedbacks doubles restoration success. Ecol Appl 22:1224–1231
Thrush SF, Hewitt JE, Dayton PK, Coco G, Lohrer AM, Norkko A, Norkko J, Chiantore M (2009) Forecasting the limits of resilience: integrating empirical research with theory. Proc Biol Sci 276:3209–3217
Unsworth RK, Collier CJ, Waycott M, McKenzie LJ, Cullen-Unsworth LC (2015) A framework for the resilience of seagrass ecosystems. Mar Pollut Bull 100:34–46
Visser ME (2008) Keeping up with a warming world; assessing the rate of adaptation to climate change. Proc Biol Sci 275:649–659
Walker BH, Salt D (2012) Resilience practice: building capacity to absorb disturbance and maintain function. Island Press, Sydney
Warry FY, Hindell JS, Macreadie PI, Jenkins GP, Connolly RM (2009) Integrating edge effects into studies of habitat fragmentation: a test using meiofauna in seagrass. Oecologia 159:883–892
York PH, Carter AB, Chartrand K, Sankey T, Wells L, Rasheed MA (2015) Dynamics of a deep-water seagrass population on the Great Barrier Reef: annual occurrence and response to a major dredging program. Sci Rep 5:13167
York PH, Smith TM, Coles RG, McKenna SA, Connolly RM, Irving AD, Jackson EL, McMahon K, Runcie JW, Sherman CDH, Sullivan BK, Trevathan-Tackett SM, Brodersen KE, Carter AB, Ewers CJ, Lavery PS, Roelfsema CM, Sinclair EA, Strydom S, Tanner JE, van Dijk KJ, Warry FY, Waycott M, Whitehead S (2017) Identifying knowledge gaps in seagrass research and management: an Australian perspective. Mar Environ Res 127:163–172
Young P, Kirkman H (1975) The seagrass communities of Moreton Bay, Queensland. Aquat Bot 1:191–202
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Connolly, R.M., Jackson, E.L., Macreadie, P.I., Maxwell, P.S., O’Brien, K.R. (2018). Seagrass Dynamics and Resilience. In: Larkum, A., Kendrick, G., Ralph, P. (eds) Seagrasses of Australia. Springer, Cham. https://doi.org/10.1007/978-3-319-71354-0_7
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