Realm: Freshwater
Climate: Temperate/Tropical
Biome: Mangroves
Central latitude: 22.085904
Central longitude: 89.494607
Duration: 4 years, from 1986 to 2014

1707 records

25 distinct species

Across the time series Excoecaria agallocha is the most frequently occurring species

Methods

Tree data were collected from the PSP network (Fig. 1) in the Sundarbans during four complete forest censuses: 1986, 1994,1999 and 2014. Every tree with d.b.h (diameter at breast height – 1.3 m from the ground) ?4.6cm was tagged with a unique tree number and identified. The network consists of 110 equal-sized plots (0.2ha,100×20m)and represents the forest types in the ecological zones (seeIftekhar and Saenger, 2008). The hyposaline zone comprises 50 PSPs representing the Heritierafomes, H. fomes – Excoecaria agallocha, and E. agallocha – H. fomesforest types. The mesosaline zone comprises 30 PSPs representing the H.fomes – E.agallocha, and E.agallocha–H. fomes forest types. The hypersaline zone comprises 30 PSPs representing the E.agallocha – Ceriops decandra and the C. decandra –E. agallocha forest types. To derive their zone-wise historical and current abundances, we summed the PSP-level counts of each species of each ecological zone for the first (1986) and the last census (2014). From 110 equal sized plots, tree abundance was aquired by summing the counts of each species within each ecological zone (hypo, meso and hypersaline).

Citation(s)

@Article{BioTIME_cit328, Study_id = {525}, Citation_id = {328}, Author = {Sarker, Swapan Kumar and Matthiopoulos, Jason and Mitchell, Sonia N and Ahmed, Zahir Uddin and Mamun, Md Bashirul Al and Reeve, Richard}, Journal = {Biological Conservation}, Pages = {79-91}, Title = {1980s–2010s: The world's largest mangrove ecosystem is becoming homogeneous}, Volume = {236}, Year = {2019}, Doi = {10.1016/j.biocon.2019.05.011}, Issn = {0006-3207}, Url = {https://www.sciencedirect.com/science/article/pii/S0006320718314186}, Urldate = {2020-01-01} }