Ecological influences on regeneration dynamics in the sundarbans, Bangladesh: Exploring biotic and abiotic factors across time and space
Natural regeneration is critical for sustaining mangrove ecosystems, particularly the Sundarbans, the world's largest mangrove forest. This study assessed the impacts of biotic and abiotic factors on regeneration dynamics, examining spatial variations across salinity zones and temporal changes...
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| Language: | English |
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Elsevier
2025-01-01
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| Series: | Global Ecology and Conservation |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2351989425000046 |
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| author | MD. Najmus Sayadat Pitol Mominul Islam Nahid MD. Akramul Islam SK. MD. Mehedi Hasan Sheikh Mohammed Rabiul Alam |
| author_facet | MD. Najmus Sayadat Pitol Mominul Islam Nahid MD. Akramul Islam SK. MD. Mehedi Hasan Sheikh Mohammed Rabiul Alam |
| author_sort | MD. Najmus Sayadat Pitol |
| collection | DOAJ |
| description | Natural regeneration is critical for sustaining mangrove ecosystems, particularly the Sundarbans, the world's largest mangrove forest. This study assessed the impacts of biotic and abiotic factors on regeneration dynamics, examining spatial variations across salinity zones and temporal changes (2010–2020) using data from 30 permanent sample plots (PSPs) established by the Mangrove Silviculture Division, Bangladesh Forest Research Institute. We found that the biodiversity of the Sundarbans remained relatively stable over time, with a high Müeller-Dombois Similarity Index and low Bray-Curtis Dissimilarity Index across years and zones. However, salinity variations influenced species composition. The study also revealed a decline in the dominance of Heritiera fomes and an increase in the abundance of Excoecaria agallocha (showed habitat expansion) over time while both species maintained a high importance value. The total biomass growth from living (77.84 Mg/ha) and newly established trees (14.39 Mg/ha) was low, while the biomass loss (81.79 Mg/ha) from the dead trees was significant. Furthermore, our analysis indicated that abiotic factors, including salinity, siltation, and soil pH, had minimal influence on plant functional traits, but changes in basal area notably affected biomass dynamics. These findings provide insights into the regeneration trends of the Sundarbans and guide the formulation of policies to manage this unique ecosystem sustainably. |
| format | Article |
| id | doaj-art-1329dd3dbb204f428fac1981bc21deb7 |
| institution | Kabale University |
| issn | 2351-9894 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Global Ecology and Conservation |
| spelling | doaj-art-1329dd3dbb204f428fac1981bc21deb72025-01-23T05:27:03ZengElsevierGlobal Ecology and Conservation2351-98942025-01-0157e03403Ecological influences on regeneration dynamics in the sundarbans, Bangladesh: Exploring biotic and abiotic factors across time and spaceMD. Najmus Sayadat Pitol0Mominul Islam Nahid1MD. Akramul Islam2SK. MD. Mehedi Hasan3Sheikh Mohammed Rabiul Alam4Mangrove Silviculture Division, Bangladesh Forest Research Institute, Ministry of Environment, Forest and Climate Change, Bangladesh; Institute of Marine Sciences (LABOMAR), Federal University of Ceará (UFC), Fortaleza, Brazil; Corresponding author at: Mangrove Silviculture Division, Bangladesh Forest Research Institute, Ministry of Environment, Forest and Climate Change, Bangladesh.Mangrove Silviculture Division, Bangladesh Forest Research Institute, Ministry of Environment, Forest and Climate Change, BangladeshMangrove Silviculture Division, Bangladesh Forest Research Institute, Ministry of Environment, Forest and Climate Change, BangladeshMangrove Silviculture Division, Bangladesh Forest Research Institute, Ministry of Environment, Forest and Climate Change, BangladeshMangrove Silviculture Division, Bangladesh Forest Research Institute, Ministry of Environment, Forest and Climate Change, BangladeshNatural regeneration is critical for sustaining mangrove ecosystems, particularly the Sundarbans, the world's largest mangrove forest. This study assessed the impacts of biotic and abiotic factors on regeneration dynamics, examining spatial variations across salinity zones and temporal changes (2010–2020) using data from 30 permanent sample plots (PSPs) established by the Mangrove Silviculture Division, Bangladesh Forest Research Institute. We found that the biodiversity of the Sundarbans remained relatively stable over time, with a high Müeller-Dombois Similarity Index and low Bray-Curtis Dissimilarity Index across years and zones. However, salinity variations influenced species composition. The study also revealed a decline in the dominance of Heritiera fomes and an increase in the abundance of Excoecaria agallocha (showed habitat expansion) over time while both species maintained a high importance value. The total biomass growth from living (77.84 Mg/ha) and newly established trees (14.39 Mg/ha) was low, while the biomass loss (81.79 Mg/ha) from the dead trees was significant. Furthermore, our analysis indicated that abiotic factors, including salinity, siltation, and soil pH, had minimal influence on plant functional traits, but changes in basal area notably affected biomass dynamics. These findings provide insights into the regeneration trends of the Sundarbans and guide the formulation of policies to manage this unique ecosystem sustainably.http://www.sciencedirect.com/science/article/pii/S2351989425000046BiomassCarbon stockDiversityMangrovesPermanent sample plot (PSP)Temporal change |
| spellingShingle | MD. Najmus Sayadat Pitol Mominul Islam Nahid MD. Akramul Islam SK. MD. Mehedi Hasan Sheikh Mohammed Rabiul Alam Ecological influences on regeneration dynamics in the sundarbans, Bangladesh: Exploring biotic and abiotic factors across time and space Global Ecology and Conservation Biomass Carbon stock Diversity Mangroves Permanent sample plot (PSP) Temporal change |
| title | Ecological influences on regeneration dynamics in the sundarbans, Bangladesh: Exploring biotic and abiotic factors across time and space |
| title_full | Ecological influences on regeneration dynamics in the sundarbans, Bangladesh: Exploring biotic and abiotic factors across time and space |
| title_fullStr | Ecological influences on regeneration dynamics in the sundarbans, Bangladesh: Exploring biotic and abiotic factors across time and space |
| title_full_unstemmed | Ecological influences on regeneration dynamics in the sundarbans, Bangladesh: Exploring biotic and abiotic factors across time and space |
| title_short | Ecological influences on regeneration dynamics in the sundarbans, Bangladesh: Exploring biotic and abiotic factors across time and space |
| title_sort | ecological influences on regeneration dynamics in the sundarbans bangladesh exploring biotic and abiotic factors across time and space |
| topic | Biomass Carbon stock Diversity Mangroves Permanent sample plot (PSP) Temporal change |
| url | http://www.sciencedirect.com/science/article/pii/S2351989425000046 |
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