The practice of hydrological restoration to rehabilitate abandoned shrimp ponds in Bunaken National Park, North Sulawesi, Indonesia

Djamaluddin, Rignolda; Brown, Benjamin; Lewis, Roy R.

doi:10.13057/biodiv/d200119

Cited by 19 publications

(16 citation statements)

References 26 publications

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“…14–16 years prior to the vegetation sampling undertaken here). Both sites had relatively undisturbed forests that have not been logged, serving as our reference forests (Djamaluddin et al 2019). Detailed site descriptions in Supplement S1.…”

Section: Methodsmentioning

confidence: 99%

Assessing mangrove restoration practices using species‐interaction networks

O’Connell

Fusi

Djamaluddin

et al. 2021

Restoration Ecology

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Mangroves are uniquely important ecosystems, for preserving biodiversity, sustaining livelihoods, and mitigating against climate change. However, they are degraded globally and are therefore a priority for ecosystem restoration. To date, the assessment of mangrove restoration outcomes is generally poor, and the limited studies that do exist are focused largely on forest area. Thus, more holistic ways of assessing the outcomes of mangrove restoration projects on biodiversity and associated ecological processes are urgently needed. Ecological networks are a useful tool for simultaneously examining both. Here, we assessed the utility of using species‐interaction networks for evaluating mangrove restoration outcomes for the first time. We compared the structure and complexity of mangrove ecological networks in replicated “monoculture reforestation,” “mixed species regeneration” and “reference forest” plots in two study areas in Sulawesi, Indonesia, an estuarine, and a coastal fringe mangrove system. We also combined and evaluated sampling methods, utilizing traditional plant–animal sampling while also integrating video recording data in a novel way. We found significant differences in the structure and complexity of mangrove networks between restored and natural plots, with contrasting effects between the two sites. Our results show differences in the complex ways in which taxa interact in mangrove restoration projects, which would be overlooked if common biodiversity metrics, such as species richness, were used alone, with consequences for the restoration of ecosystem functioning. We also highlight the utility of video recording data collection for constructing species‐interaction networks, overcoming the detrimental impacts of observer presence for some key species.

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Section: Methodsmentioning

confidence: 99%

Assessing mangrove restoration practices using species‐interaction networks

O’Connell

Fusi

Djamaluddin

et al. 2021

Restoration Ecology

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“…Therefore, the most important factor when designing a successful mangrove restoration project is to determine the normal hydrology (depth, duration and frequency, and tidal flooding) of the natural mangrove plants present at the restoration site (Lewis 2005;Lewis 2009). Hydrological restoration has been carried out to rehabilitate an abandoned shrimp pond in Bunaken National Park, North Sulawesi, Indonesia in which all the procedures applied were simple and cost-effective, and the results were significantly successful (Djamaluddin et al 2019).…”

Section: Structure and Diversity Of Tree Standsmentioning

confidence: 99%

Floristic composition and stand structure of mangrove forests with varying vegetation conditions in Sungai Apit, Siak, Riau, Indonesia

et al. 2021

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Abstract. Fatonah, Hamidy R, Mulyadi A, Efriyeldi. 2021. Floristic composition and stand structure of mangrove forests with varying vegetation conditions in Sungai Apit, Siak, Riau, Indonesia. Biodiversitas 22: 3972-3983. Mangrove forest in Sungai Apit Sub-district, Siak District, Riau is one of mangrove ecosystems that is still partly natural with some parts being damaged or rehabilitated. Degraded mangrove forest is a mangrove forest that has been disturbed by human activities and natural factors. This study aimed to investigate the floristic composition and stand structure of trees and seedlings in mangrove forests in Sungai Apit, Siak District, Riau Province, Indonesia in three vegetation conditions, i.e., natural, degraded, and rehabilitated forests. Line Transect Plot Method was used to collect data in three stations (i.e., Rawa Mekar Jaya, Sungai Rawa and Mengkapan villages) where each station consisted of three transects with a size of 10 x 100 m. A total of 20 species belonging 11 families were recorded in the studied sites with Rhizophora apiculata was the most dominant species in all forest conditions. The natural forest had the highest number of species followed by rehabilitated forest and the degraded forest. Stand structure in terms of tree density, mean diameter of mangrove trunks, and basal area differed significantly across the three vegetation conditions with the natural forest had the highest values followed by the rehabilitated forest, while the degraded forest was the lowest. For the seedling, the lowest number of species was observed in the degraded forest while the highest was in the rehabilitated forest, indicating the result of rehabilitation activities. Yet, seedling density in natural forests was lower than that in rehabilitated and degraded forests. This study provides information that differences in structure, species composition and recruitment of seedlings in mangrove forests in the three conditions and locations can be related to differences in recovery time and degradation levels which may be important for developing mangrove forest management and conservation strategies.

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“…Kondisi hidrologi lahan sangat penting bagi keberhasilan rehabilitasi mangrove. Upaya rehabilitasi akan sangat memuaskan apabila hidrologi lingkungan sangat cocok untuk pertumbuhan mangrove (Lewis, 2005;Howard et al, 2017;Djamaluddin, 2019).…”

Section: B Penanaman DI Desa Pinolantungan -2unclassified

An Assessment of Mangrove Rehabilitation Programs in Bolaang Mongondow Selatan Regency, North Sulawesi

Djamaluddin¹

2020

PLATAX

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While the results of many mangrove rehabilitation efforts have not been optimal due to various factors, the rate of mangrove forest deforestation remains high in Indonesia. This research was designed to test the principle “planting certain mangrove seedlings on suitable habitat would be survived”. The test was based on an assessment of six locations in Bolaang Mongondow Selatan Regency where mangrove rehabilitation programs were implemented. This assessment was conducted by using a spot check method to analyze any variables associated with plantation area feasibility, and the use of a participative approach to collect additional information. Results from this study confirmed that mangrove seedlings have to be planted on the right habitat and that the implemented rehabilitation programs have followed a try and error or speculative approach, and have not been supported by sufficient technical and theoretical competencies. Keywords: artificial plantation, natural regeneration, mangrove, rehabilitation Deforestasi hutan mangrove di Indonesia berlangsung cepat, sementara itu banyak upaya rehabilitasi belum memberikan hasil yang optimal karena berbagai faktor. Penelitian ini menguji secara khusus prinsip “benih yang ditanam di tempat yang cocok akan tumbuh”, melalui penilaian enam lokasi program rehabilitasi mangrove di Kabupaten Bolaang Mongondow Selatan. Penilaian dilakukan menggunakan metode pengecekan lapangan (on spot check) untuk menganalisis variabel-variabel yang berkaitan dengan kelayakan lahan tanam, dan pengumpulan informasi melalui pendekatan partisipatif. Hasil penelitian menegaskan bahwa “jenis bibit yang ditanam harus sesuai dengan lahan tanam”. Upaya penanaman yang dilakukan masih menggunakan pendekatan coba-coba atau spekulatif, dan tidak didukung pemahaman teknis maupun teoritis yang memadai.Kata kunci: mangrove, penanaman artifisial, regenerasi alami, rehabilitasi

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The practice of hydrological restoration to rehabilitate abandoned shrimp ponds in Bunaken National Park, North Sulawesi, Indonesia

Cited by 19 publications

References 26 publications

Assessing mangrove restoration practices using species‐interaction networks

Assessing mangrove restoration practices using species‐interaction networks

Floristic composition and stand structure of mangrove forests with varying vegetation conditions in Sungai Apit, Siak, Riau, Indonesia

An Assessment of Mangrove Rehabilitation Programs in Bolaang Mongondow Selatan Regency, North Sulawesi

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