Mangrove rehabilitation in high erosion areas: Assessment using bioindicators

Thornton, Stephen Ryan; Johnstone, Ron

doi:10.1016/j.ecss.2015.05.013

Cited by 16 publications

(8 citation statements)

References 38 publications

(79 reference statements)

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“…Objectives of mangrove restoration may thus vary depending on sources of damage to mangroves that includes knowing the diagnosis of the causes of the deterioration and setting a baseline [13]. Bioindicators are among the proposed tools for assessing mangroves ecological state according to the types of pressures and the levels of deterioration but they differ with the ecosystems specificities [14,15]. The bioindicators approach has highlighted recently the needs to develop integrated studies of the mangroves ecosystem in preparation of its successful management [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

First Assessment of the Benthic Meiofauna Sensitivity to Low Human-Impacted Mangroves in French Guiana

Michelet

Zeppilli

Hubas

et al. 2021

Forests

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Bioindicators assess the mangroves ecological state according to the types of pressures but they differ with the ecosystem’s specificities. We investigated benthic meiofauna diversity and structure within the low human-impacted mangroves in French Guiana (South America) in response to sediment variables with various distances to the main city. Contaminant’s concentrations differed among the stations, but they remained below toxicity guidelines. Meiofauna structure (Foraminifera, Kinorhyncha, Nematoda) however varied accordingly. Nematode’s identification brought details on the sediment’s quality. The opportunistic genus Paraethmolaimus (Jensen, 1994) strongly correlated to the higher concentrations of Hg, Pb. Anoxic sediments were marked by organic enrichment in pesticides, PCB, and mangrove litter products and dominance of two tolerant genus, Terschellingia (de Man, 1888) and Spirinia (Gerlach, 1963). In each of these two stations, we found many Desmodora individuals (de Man, 1889) with the presence of epibionts highlighting the nematodes decreased fitness and defenses. Oxic sediments without contaminants were distinguished by the sensitive genera Pseudocella (Filipjev, 1927) and a higher diversity of trophic groups. Our results suggested a nematodes sensitivity to low contaminants concentrations. Further investigations at different spatio-temporal scales and levels of deterioration, would be necessary to use of this group as bioindicator of the mangroves’ ecological status.

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Section: Introductionmentioning

confidence: 99%

First Assessment of the Benthic Meiofauna Sensitivity to Low Human-Impacted Mangroves in French Guiana

Michelet

Zeppilli

Hubas

et al. 2021

Forests

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“…Hence, the success of ecological restoration can be assessed through a system of indicators that generate information about the recovery of wetland functions. Such a system might include landscape features, biogeochemical processes (Cvetkovic & Chow-Fraser, 2011; Zhang et al, 2012), ecosystem services, and the composition of biological assemblages (e.g., vegetation, crustaceans, mollusk, and vertebrates) (Thornton & Johnstone, 2015; Salmo, Tibbetts & Duke, 2016). Therefore, species richness, abundance, and community structure can be used to evaluate the biological outcomes of restoration efforts (Zhao et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

The effect of mangrove restoration on avian assemblages of a coastal lagoon in southern Mexico

Canales-Delgadillo

Pérez-Ceballos

Zaldívar-Jiménez³

et al. 2019

PeerJ

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Background Mangrove forests provide many ecosystem services, including the provision of habitat that supports avian biodiversity. However, hurricanes can knock down trees, alter hydrologic connectivity, and affect avian habitat. In 1995, Hurricanes Opal and Roxanne destroyed approximately 1,700 ha of mangrove forest in Laguna de Términos, Mexico. Since then, hydrological restoration has been implemented to protect the mangrove forest and its biodiversity. Methods Since avian communities are often considered biological indicators of ecosystem quality, avian diversity and species relative abundance were evaluated as indicators of mangrove restoration success by comparing undisturbed mangrove patches with those affected by the hurricanes. Using bird surveys, similarity analyses, and generalized linear models, we evaluated the effects of water quality variables and forest structure on the relative abundance and diversity of the avian community in disturbed, restored, and undisturbed mangrove patches. Results Higher bird species richness and relative abundances were found in disturbed and restored sites compared to the undisturbed site. After restoration, values of frequency of flooding, water temperature, tree density, and the number of tree species were more similar to that of the undisturbed site than to the values of the disturbed one. Such variables influenced the relative abundance of bird guilds in the different habitat conditions. Furthermore, some insectivorous bird species, such as the Yellow Warbler and Tropical Kingbird, were found to be similarly abundant in both undisturbed and restored sites, but absent or very low in occurrence at the disturbed site. Conclusions Collectively, our results strongly suggest that hydrologic restoration helps to enhance niche availability for different bird guilds, including water and canopy bird species. Our work can help inform management strategies that benefit avian communities in mangrove forests and wetland systems.

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“…Benthem et al. (1999), Thornton and Johnstone (2015), and Schmitt and Duke (2016) studied mangrove rehabilitation, and Binh (1997), Ha et al. (2012), and Nguyen et al.…”

Section: Introductionmentioning

confidence: 99%

Coastal land use planning in Ben Tre, Vietnam: constraints and recommendations

Nguyễn

Parnell

2019

Heliyon

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There have been few reviews of the effectiveness of the management of coastal mangrove protected areas and coastal land use planning at all levels in the Mekong Delta, Vietnam. Ben Tre province provides a good case study to enable the assessment of typical management practices in the provinces of the Delta. The study aims to critically review the current strategies for managing the Ben Tre coast and to consider what changes are required to ensure effective coastal management. The current coastal management strategies only dealt with symptoms and worked temporarily. There has been insufficient coordination in land use planning and coastal management among the Ben Tre government agencies, substantially contributing to mangrove loss and degradation. Natural regeneration of local mangrove species and secondary succession, although having been practically effective for protecting from coastal erosion, have not been used as coastal management measures. Three strategies, hold the existing defence line, managed realignment, and no active intervention , are recommended to assist in managing the Ben Tre coast for adaptation to climate change and sea level rise, and livelihood improvement.

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Mangrove rehabilitation in high erosion areas: Assessment using bioindicators

Cited by 16 publications

References 38 publications

First Assessment of the Benthic Meiofauna Sensitivity to Low Human-Impacted Mangroves in French Guiana

First Assessment of the Benthic Meiofauna Sensitivity to Low Human-Impacted Mangroves in French Guiana

The effect of mangrove restoration on avian assemblages of a coastal lagoon in southern Mexico

Coastal land use planning in Ben Tre, Vietnam: constraints and recommendations

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