Structure and regeneration status of mangrove patches along the estuarine and coastal stretches of Kerala, India

George, Grinson; Krishnan, P.; Mini, K G; Salim, Shyam S.; Ragavan, P.; Tenjing, S. Y.; Muruganandam, R.; Dubey, Sourabh Kumar; Gopalakrishnan, A; Purvaja, R.; Ramachandran, Ramesh

doi:10.1007/s11676-018-0600-2

Cited by 28 publications

(16 citation statements)

References 42 publications

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“…Satellite imagery has informed several studies ( Ramirez-Garcia, Lopez-Blanco & Ocana, 1998 ; Murray et al, 2003 ; Matsushita et al, 2007 ; Lee & Yeh, 2009 ; Shih et al, 2011a ; Shih et al, 2011b ; George et al, 2018 ) that have examined the reach of wetland vegetation and have assessed the relationship between mangrove distribution and coastal changes (Allison & Lee, 2004; Fromard et al, 2004; Nakamura et al, 2004; Shih et al, 2011a ; Shih et al, 2011b ; Lonard et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

Effects of mangrove removal on benthic organisms in the Siangshan Wetland in Hsinchu, Taiwan

Chu

Wei

Shih

2018

PeerJ

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Mangrove degradation is a well-documented trend, but the spread of mangroves within the Siangshan Wetland in Hsinchu, Taiwan, runs contrary to that trend. The spread of mangroves changes the structure and functions of habitats for benthic organisms, causes infilling of estuaries and flooding and creates breeding grounds for small black mosquitoes. A large-scale mangrove-removal project was undertaken by the Hsinchu City Government from October 2015 to March 2016. They also investigated the consequences of mangrove removal on benthic organisms and adjacent habitats from October 2015 to September 2016, and the density, species count, Shannon–Wiener index (H′), and Pielou’s evenness index (J′) of the mangrove and non-mangrove regions were compared. In this study, we used satellite telemetry images to monitor fluctuations in mangrove density from 2006 to 2016. The non-mangrove region exhibited more variations than the mangrove region. After mangrove removal, species returned to their original habitats and noteworthy biological values significantly increased in the mangrove regions. This study presents evidence to argue that mangrove removal benefits benthic organisms. The results indicate that mangrove removal can be an appropriate habitat rehabilitation strategy for benthic organisms. The ecological findings of this study can inform coastal managers or other officials who seek to steward mangrove biomass.

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Section: Introductionmentioning

confidence: 99%

Effects of mangrove removal on benthic organisms in the Siangshan Wetland in Hsinchu, Taiwan

Chu

Wei

Shih

2018

PeerJ

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“…The finding of one tree species that dominates IV is not uncommon within the IWP with example of Rhizophora apiculata dominating IV in Klang Island, Malaysia (Norhayati et al 2009), and in Sibuti, Sarawak, Malaysia (Shah et al 2016), and Sonneratia alba dominating IV in East Lombok Regency, West Nusa Tenggara Aminuddin and Sunarto (2019). While in the mangrove forests of Teluk Gong, Malaysia (Rozainah et al 2018); Pulau Ketam, Malaysia (Rozainah et al 2018); and Kerala, India, IV (George et al 2019) is more evenly distributed among two or more tree species. These studies note abiotic, biotic, human disturbance, and nature conservation as key influences that shape the mangroves forest's structure and IV (Norhayati et al 2009;Shah et al 2016;Rozainah et al 2018;George et al 2019;Aminuddin and Sunarto 2019).…”

Section: Discussionmentioning

confidence: 96%

“…While in the mangrove forests of Teluk Gong, Malaysia (Rozainah et al 2018); Pulau Ketam, Malaysia (Rozainah et al 2018); and Kerala, India, IV (George et al 2019) is more evenly distributed among two or more tree species. These studies note abiotic, biotic, human disturbance, and nature conservation as key influences that shape the mangroves forest's structure and IV (Norhayati et al 2009;Shah et al 2016;Rozainah et al 2018;George et al 2019;Aminuddin and Sunarto 2019).…”

Section: Discussionmentioning

confidence: 99%

Impacts of urbanization on mangrove forests and brachyuran crabs in Penang, Malaysia

et al. 2021

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Urban development is driving the loss and subsequent fragmentation of mangrove forests in Penang, Malaysia. However, little research has focused on the implications of urbanization onto the biodiversity within mangrove forests. This study investigates and compares both vegetation and crab assemblages between urban and rural mangrove forests. Collectively, 5853 trees were recorded including 15 species from six families: Acanthaceae, Arecaceae, Lythraceae, Malvaceae, Meliaceae, and Rhizophoraceae. Avicennia marina accounted for 88.6% of all trees in the study and held the highest species importance (IV). Although the total number of mangrove tree species varied significantly between urban (14) and rural (7) mangrove forests, the mangrove forest structure based on IV did not vary significantly. In total, 633 crabs were recorded comprising 13 different species from three superfamilies: Grapsoidea, Ocypodoidea, and Paguroidea. Crab species richness did not vary between urban and rural sites, but the biomasses of five and the densities of four crab species varied significantly. Redundancy analysis (RDA) indicated that land use, salinity, and abundance of Avicennia officinalis can best describe the distribution of crab species (r2 =32.7). This study indicates that smaller fragmented urban mangroves at the east coast of Penang have a relatively high tree and crab diversity and are worth protecting, in addition to the larger mangrove forests on the west coast. The preservation of small yet interconnected mangrove sites could be critical to the recruitment of their flora and fauna and should be considered in decision-making processes.

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“…But in Indian context, studies on mangrove forest structure are very limited. Forest structural studies on Indian mangrove forests at Pichavaram and Muthupet [15][16][17], in Andaman Islands [18][19][20][21][22][23], in Odisha [24,25], in Andhra Pradesh [26][27][28][29], in Kerala [30][31][32][33][34][35], in Gujarat [36] and in Sundarbans [37][38][39][40][41][42][43][44] are noteworthy. Complexity index (Ic) and…”

Section: Mini Reviewmentioning

confidence: 99%

Status of Indian Mangroves

Ragavan

2018

OFOAJ

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Structure and regeneration status of mangrove patches along the estuarine and coastal stretches of Kerala, India

Cited by 28 publications

References 42 publications

Effects of mangrove removal on benthic organisms in the Siangshan Wetland in Hsinchu, Taiwan

Effects of mangrove removal on benthic organisms in the Siangshan Wetland in Hsinchu, Taiwan

Impacts of urbanization on mangrove forests and brachyuran crabs in Penang, Malaysia

Status of Indian Mangroves

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