Observations of Natural Recruitment and Human Attempts at Mangrove Rehabilitation After Seismic (Tsunami and Earthquake) Events in Simeulue Island and Singkil Lagoon, Aceh, Indonesia

Brown, Ben; Yuniati, Woro; Ahmad, Rio; Soulsby, Iona

doi:10.1007/978-3-319-10202-3_19

Cited by 16 publications

(12 citation statements)

References 2 publications

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“…This is compounded by a number of socio-political issues, such as land tenure arrangements constraining where mangrove rehabilitation can or cannot be conducted. However, largescale successes have occurred and are now increasingly documented in the published and grey literature (Rey et al, 2012;Brown et al, 2014a, b). Rey et al (2012), for example, report successful restoration of 12,000 ha of mangroves and tidal marshes in the IRL, Florida, USA, over 25 years.…”

Section: Mangrove Gains Due To Rehabilitation and Natural Regenerationmentioning

confidence: 99%

“…In both examples, mangrove planting was a secondary concern; instead, these schemes focused on hydrologic restoration methods (Lewis, 2009;Lewis & Brown, 2014;Lewis et al, 2017) using the Ecological Mangrove Rehabilitation (EMR) model first outlined by Lewis (2005) and later modified as a Community Based Ecological Mangrove Rehabilitation (CBEMR) model by Brown et al (2014a, b) and Lewis & Brown (2014). The future success of restoration attempts over hundreds of thousands of hectares of abandoned fish and shrimp aquaculture ponds around the world may be possible if the basic principles outlined in Brown & Lewis (2006), Brown et al (2014a), Lewis & Brown (2014), and Lewis et al (2017) are followed. Cautionary notes are, however, outlined in Lewis et al (2017) and Oh et al (2017) regarding the importance of good engineering to achieve these successes.…”

Section: Mangrove Gains Due To Rehabilitation and Natural Regenerationmentioning

confidence: 99%

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The state of the world’s mangroves in the 21st century under climate change

et al. 2017

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Concerted mangrove research and rehabilitation efforts over the last several decades have prompted a better understanding of the important ecosystem attributes worthy of protection and a better conservation ethic toward mangrove wetlands globally. While mangroves continue to be degraded and lost in specific regions, conservation initiatives, rehabilitation efforts, natural regeneration, and climate range expansion have promoted gains in other areas, ultimately serving to curb the high mangrove habitat loss statistics from the doom and gloom of the 1980s. We highlight those trends in this article and introduce this special issue of Hydrobiologia dedicated to the important and recurring Mangrove and Macrobenthos Meeting. This collection of papers represents studies presented at the fourth such meeting (MMM4) held in St. Augustine, Florida, USA, on July 18-22, 2016. Our intent is to provide a balanced message about the global state of mangrove wetlands by describing recent reductions in net mangrove area losses and highlighting primary research studies presented at MMM4 through a collection of papers. These papers serve not only to highlight on-going global research advancements, but also provide an overview of the vast amount of data on mangrove ecosystem ecology, biology and rehabilitation that emphasizes the uniqueness of the mangrove community.

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Section: Mangrove Gains Due To Rehabilitation and Natural Regenerationmentioning

confidence: 99%

Section: Mangrove Gains Due To Rehabilitation and Natural Regenerationmentioning

confidence: 99%

The state of the world’s mangroves in the 21st century under climate change

et al. 2017

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“…In these studies, different aspects of mangrove restoration, e.g. topography of mangrove planting (Primavera & Esteban ; Samson & Rollon ), causes for mangrove restoration failure (Samson & Rollon ; Brown et al ), technical guidance, that is, Ecological Mangrove Restoration/Rehabilitation (EMR) methodology (Lewis ) and recommendations (Lewis , ; Primavera & Esteban ; Lewis & Brown ; Asaeda et al ), and socioeconomic aspects of mangrove restoration (Stevenson et al ) have been discussed. Therefore, we intended to carry out our study to provide an extensive, country‐wide investigation of the many dimensions of mangrove planting (e.g.…”

Section: Introductionmentioning

confidence: 99%

Have mangrove restoration projects worked? An in‐depth study in Sri Lanka

Kodikara

Mukherjee

Jayatissa

et al. 2017

Restoration Ecology

195

144

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This study investigated the effectiveness of mangrove planting initiatives in Sri Lanka. All the lagoons and estuaries in Sri Lanka were included in the study. We documented all agencies and locations, involved in mangrove planting efforts, along with the major drivers of these planting initiatives, their extents, and the possible causes of the success or failure of planting. An adapted three‐step framework and a field survey consisting of vegetation and soil surveys and questionnaires were used to evaluate the objectives. We found that about 1,000–1,200 ha of mangroves, representing 23 project sites with 67 planting efforts, have been under restoration with the participation of several governmental and nongovernmental organizations. However, about 200–220 ha showed successful mangrove restoration. Nine out of 23 project sites (i.e. 36/67 planting efforts) showed no surviving plants. The level of survival of the restoration project sites ranged from 0 to 78% and only three sites, that is, Kalpitiya, Pambala, and Negombo, showed a level of survival higher than 50%. Survival rates were significantly correlated with post‐care. Planting mangrove seedlings at the incorrect topography often entails inappropriate soil conditions for mangroves. Survival rates showed significant correlations with a range of soil parameters except soil pH. Disturbance and stress caused by cattle trampling, browsing, algal accumulation, and insect attacks, factors that may themselves relate to choosing sites with inappropriate topography and hydrology, were common to most sites. The findings are a stark illustration of the frequent mismatch between the purported aims of restoration initiatives and the realities on the ground.

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“…In many cases, mangrove planting practitioners tend to establish mangrove plantations out of intertidal range (i.e. natural mangrove growing area) of lagoon which is commonly known as "inappropriate tidal positioning" in mangrove planting (Samson and Rollon 2008;Brown et al 2014a). This often brings about inappropriate ecological conditions, for example hard soil, low water content, high salinity and hypoxia which are detrimental for the survival of mangrove plants (Brown et al 2014a).…”

mentioning

confidence: 99%

“…natural mangrove growing area) of lagoon which is commonly known as "inappropriate tidal positioning" in mangrove planting (Samson and Rollon 2008;Brown et al 2014a). This often brings about inappropriate ecological conditions, for example hard soil, low water content, high salinity and hypoxia which are detrimental for the survival of mangrove plants (Brown et al 2014a). Therefore, planted mangrove propagules/seedlings are vulnerable for drought stress (also known as physical water stress) and salt stress (also known as physiological water stress), in case of planting beyond intertidal zone (supralittoral) where soil water content is low (particularly in dry zone and dry season) and more deeper areas in lagoon water (infra-littoral) where high salinity (during dry season) and hypoxic (prolonged submergence) conditions are applied, respectively (Hoppe-Speer et al 2011).…”

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confidence: 99%

Structural and functional responses of xylem in <em>Rhizophora mucronata</em> Lam. seedlings under drought and hypersaline conditions

et al. 2018

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Abstract. Water translocation in mangrove seedlings is often affected by water stress conditions such as drought, hyper-salinities and their frequent variations. This study was therefore aimed at studying the wood anatomical responses of xylem tissue and hydraulic conductivity of Rhizophora mucronata Lam., a common species in mangrove planting, under different levels of drought [25%, ~50% and ~100% of water holding capacity (WHC)] and soil salinity [high salinity (35 psu), moderate salinity (15 psu) and freshwater (0 psu)]. As wood anatomical responses, significantly higher vessel density, vessel grouping (P<0.001) along with narrow vessel elements (P<0.001) were observed in plants grown in the 25% and 50% WHCs and high salinity treatments. All these anatomical responses are more directed towards avoidance of vessel cavitation which is commonly found under water deficit conditions. The results showed that R. mucronata plants failed to maintain efficient transportation of water when the field capacity was 50% of WHC or lower and the level of salinity was 35 psu or greater, as evident by the reduction of water conductive areas, vessel areas and hydraulic conductivity (P<0.05). Overall, water use efficiency of R. mucronata seedlings under the imposed water stress conditions has remarkably reduced and it further indicated that such imposed stress conditions directly affect the survival of planted seedlings as depicted by the significantly low survival in 25% and 50% of WHCs and high salinity. Therefore, in-depth study on lagoon hydrology including inundation levels, water depth, salinity and the selection of correct tidal positioning is highly recommended as prerequisites in mangrove planting.

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Observations of Natural Recruitment and Human Attempts at Mangrove Rehabilitation After Seismic (Tsunami and Earthquake) Events in Simeulue Island and Singkil Lagoon, Aceh, Indonesia

Cited by 16 publications

References 2 publications

The state of the world’s mangroves in the 21st century under climate change

The state of the world’s mangroves in the 21st century under climate change

Have mangrove restoration projects worked? An in‐depth study in Sri Lanka

Structural and functional responses of xylem in <em>Rhizophora mucronata</em> Lam. seedlings under drought and hypersaline conditions

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