Introduction

Rivera‐Monroy, Victor H.; Lee, Joe; Kristensen, Erik; Twilley, Robert R.

doi:10.1007/978-3-319-62206-4_1

Cited by 6 publications

(8 citation statements)

References 47 publications

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“…We then examined the species divergence of the Rhizophoreae clade into four genera: Rhizophora (six species), Bruguiera (five species), Ceriops (five species), and Kandelia (two species; Rivera-Monroy et al 2017 ). The phylogenetic tree was reconstructed using sequences of single-copy gene families, and the divergence time was calibrated with fossils ( supplementary fig.…”

Section: Resultsmentioning

confidence: 99%

“…S33, Supplementary Material online). The most striking feature of intertidal zones distinguishing from other extreme environments is the high fluctuations ( Tomlinson 2016 ; Rivera-Monroy et al 2017 ; Duke et al 2022 ). Some other extreme environments also stress plants, such as hot springs, deep seas, or polar environments.…”

Section: Discussionmentioning

confidence: 99%

“…Individuals of Kandelia obovata in one river system experience annual mean salinity ranging from 10‰ to 30‰ ( Yang et al 2013 ). Two populations of R. apiculata in Thailand grow in conditions with 1‰ and 35‰ salinity, respectively ( Rivera-Monroy et al 2017 ). Furthermore, the complex interaction of multiple environmental factors makes environments more unpredictable.…”

Section: Discussionmentioning

confidence: 99%

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Adaptation in Unstable Environments and Global Gene Losses: Small but Stable Gene Networks by the May–Wigner Theory

Xu,

Shao,

Feng

et al. 2024

Molecular Biology and Evolution

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Although gene loss is common in evolution, it remains unclear whether it is an adaptive process. In a survey of seven major mangrove clades that are woody plants in the intertidal zones of daily environmental perturbations, we noticed that they generally evolved reduced gene numbers. We then focused on the largest clade of Rhizophoreae and observed the continual gene set reduction in each of the eight species. A great majority of gene losses are concentrated on environmental interaction processes, presumably to cope with the constant fluctuations in the tidal environments. Genes of the general processes for woody plants are largely retained. In particular, fewer gene losses are found in physiological traits such as viviparous seeds, high salinity and high tannin content. Given the broad and continual genome reductions, we propose the May-Wigner theory (MWT) of system stability as a possible mechanism. In MWT, the most effective solution for buffering continual perturbations is to reduce the size of the system (or to weaken the total genic interactions). Mangroves are unique as immovable inhabitants of the compound environments in the land-sea interface, where environmental gradients (such as salinity) fluctuate constantly, often drastically. Extending MWT to gene regulatory network (GRN), computer simulations and transcriptome analyses support the stabilizing effects of smaller gene sets in mangroves vis-a-vis inland plants. In summary, we show the adaptive significance of gene losses in mangrove plants, including the specific role of promoting phenotype innovation and a general role in stabilizing GRN in unstable environments as predicted by MWT.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Adaptation in Unstable Environments and Global Gene Losses: Small but Stable Gene Networks by the May–Wigner Theory

Xu,

Shao,

Feng

et al. 2024

Molecular Biology and Evolution

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“…Penanaman mangrove di desa Lebetawi dimaksud untuk menjaga ekosistem mangrove dan kelestarian lingkungan pesisir. Rehabilitasi mangrove didefinisikan sebagai upaya pemulihan ekosistem dari keadaan yang memburuk menjadi keadaan yang mirip dengan habitat sebelum adanya gangguan alam atau gangguan aktivitas manusia (Rivera-Monroy et al 2017).…”

Section: Pendahuluanunclassified

Penyuluhan dan Pelatihan Rehabilitasi Mangrove di Pantai Divur Desa Labetawi Kota

Anwar,

Serang,

Tanjaya

et al. 2023

Creat J. Cumn Enga

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ABSTRAK Ekosistem mangrove memiliki fungsi ekologis yang sangat bermanfaat bagi organisme-organisme di lingkungan pesisir termasuk manusia. Dengan sistem perakaran dan kanopi yang rapat serta kokoh, vegetasi mangrove juga berfungsi sebagai pelindung daratan dari aksi gelombang, tsunami, angin topan, dan perembesan air laut. Selain itu, mangrove juga berfungsi sebagai penyedia unsur hara, ekosistemnya merupakan tempat pemijahan (spawning grounds), tempat pengasuhan (nursery grounds) dan tempat mencari makan (feeding grounds) berbagai jenis ikan, udang, dan biota laut lainnya. Permasalahan yang dihadapi masyarakat Desa Labetawi adalah kurangnya informasi dan pengetahuan tentang arti pentingnya ekosistem mangrove bagi sumberdaya perikanan dan kelautan. Penyebab utama kerusakan hutan mangrove di adalah karena tindakan manusia, berupa alih fungsi lahan menjadi tempat pemukiman masyarakat dan penebangan liar. Hutan mangrove ini dapat melindungi terumbu karang, padang lamun dari gempuran sendimentasi daratan, mengurangi erosi di daerah pesisir dan melindungi pantai dari dampak gelombang, angin dan ombak. Pelaksanaan kegiatan pengabdian masyarakat yang berfokus dalam rehabilitasi mangrove ini diharapkan mampu memberikan kontribusi dalam melestarikan lingkungan di Desa Lebetawi Kota Tual serta memupuk kesadaran masyarakat akan pentingnya menjaga ekosistem mangrove. Kata Kunci: Mangrove, Pesisir ABSTRACT Mangrove ecosystems have ecological functions that are very beneficial for organisms in the coastal environment, including humans. With a dense and sturdy root system and canopy, mangrove vegetation also functions as a land protector from wave action, tsunamis, hurricanes and seawater seepage. In addition, mangroves also function as nutrient providers, their ecosystems are spawning grounds, nursery grounds and feeding grounds for various types of fish, shrimp and other marine biota. The problem faced by the people of Labetawi Village is the lack of information and knowledge about the importance of mangrove ecosystems for fisheries and marine resources. The main cause of damage to mangrove forests in Indonesia is due to human actions, in the form of land conversion into community settlements and illegal logging. These mangrove forests can protect coral reefs, seagrass beds from the onslaught of land sedimentation, reduce erosion in coastal areas and protect beaches from the effects of waves, wind and waves. The implementation of community service activities that focus on mangrove rehabilitation is expected to be able to contribute to environmental restoration in Lebetawi Village, Tual City and increase public awareness of the importance of protecting mangrove ecosystems. Keywords: Mangroves, Coastal

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“…Dari ketiga spesies mangrove yang paling banyak ditemukan di lokasi penelitian dan yang dimanfaatkan oleh masyarakat pesisir, secara keseluruhan memiliki kategori indeks signifikansi budaya (ICS) yang sangat tinggi ditinjau dari pemanfaatannya (Table 2). Mangrove menyediakan berbagai manfaat bagi ekosistem dan bagi masyarakat, namun yang harus diperhatikan selain pemanfaatannya juga dampak terhadap ekosistem pesisir secara antropogenik (Rivera-Monroy et al, 2017). Adapun nilai ICS dapat dikategorikan sebagai berikut: nilai 1-10 adalah sangat ren-dah, 10-20 dikategorikan rendah, 20-50 adalah sedang, 50-100 dikategorikan sebagai tinggi dan > 100 dikategorikan sangat tinggi (Silalahi et al, 2018).…”

Section: Tumbuhan Mangrove Yang Dimanfaatkanunclassified

Studi Etnobotani Tumbuhan Mangrove Di Kupang

Rupidara

Tisera

Ledo

2020

J. Ilmu dan Teknologi Kelautan Tropis

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Studi etnobotani berguna untuk menganalisis pemanfaatan jenis dan bagian tumbuhan mangrove secara kuantitatif berdasarkan indeks signifikansi budaya (Index of Cultural Significance) masyarakat pesisir. Penelitian dilakukan di area mangrove Taman Wisata Mangrove Kelurahan Oesapa, Pantai Manikin, Pantai Sulamanda Desa Mata Air, Desa Kelapa Tinggi di Kelurahan Tarus, Desa Oebelo dan Desa Pariti. Pengumpulan data menggunakan metode survei lapangan, observasi dan teknik wawancara semi-terstruktur tentang tumbuhan, bagian tumbuhan yang digunakan dan cara pengolahan terhadap masyarakat yang ada di sekitar hutan mangrove. Hasil wawancara diperoleh bahwa terdapat 6 (enam) spesies mangrove major, yakni: Avicennia marina, Sonneratia alba, Bruguiera parviflora, Ceriops tagal, Rhizophora apiculata, dan R. mucronata, dan 1 (satu) spesies mangrove asosiasi, yakni Nypa fruticans. Berdasarkan nilai Indeks Signifikansi Budaya (ICS), R. mucronata memiliki nilai ICS tertinggi (708), yaitu sebagai indikator lingkungan (340) dan bahan bangunan (320). A. marina, nilai ICS 114, terutama pemanfaatannya untuk bahan obat (108), dan S. alba bernilai ICS 54, terutama sebagai pengganti sirih (12). Mangrove digunakan sebagai indikator lingkungan, kayu bakar, bahan bangunan, bahan obat, kegiatan pertanian, berkaitan dengan mitos, pengganti sirih, pembuatan garam, bahan perahu, pembuatan sirup dan pakan ternak.

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Introduction

Cited by 6 publications

References 47 publications

Adaptation in Unstable Environments and Global Gene Losses: Small but Stable Gene Networks by the May–Wigner Theory

Adaptation in Unstable Environments and Global Gene Losses: Small but Stable Gene Networks by the May–Wigner Theory

Penyuluhan dan Pelatihan Rehabilitasi Mangrove di Pantai Divur Desa Labetawi Kota

Studi Etnobotani Tumbuhan Mangrove Di Kupang

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