Comparative study of virgin and reclaimed islands of Sundarban mangrove ecosystem through network analysis

2008 ◽  
Vol 215 (1-3) ◽  
pp. 207-216 ◽  
Author(s):  
Santanu Ray
2000 ◽  
Vol 08 (03) ◽  
pp. 263-278 ◽  
Author(s):  
SANTANU RAY ◽  
ROBERT E. ULANOWICZ ◽  
N. C. MAJEE ◽  
A. B. ROY

Network analysis is performed on a 14 species food web model of the ecosystem occupying a mudflat on a partly reclaimed island of the Sundarban mangrove ecosystem. The results demonstrate a dramatic difference between this heavily impacted mangrove ecosystem in its modes of primary and secondary production and its diminished role of detritus vis-a-vis its less disturbed counterparts. Unlike most benthic mangrove systems, the Sundarban bottom community receives a large contribution from the phytoplankton populations. In this system herbivory and detritivory are virtually equal, in contrast to the usual herbivory:detritivory ratio of 1:5. Anthropogenic impacts have changed the physiography of this system so as to increase the relative importance of zooplankton and meiobenthos as herbivores. Although a slight degree of omnivory is exhibited by the populations of larger organisms, all flows of each integer of trophic length into a food chain may be aggregated that represents the underlying trophic status of the starting food web. Only a small number of pathways of recycle can be identified (31), and the Finn cycling index for this system is quite low (8.4%). Litterfall comprises only 16% of the total system input, which is very little in comparison with most mangrove systems. Pathway redundancy is rather high in this ecosystem, indicating that the surviving system is probably highly resilient to further perturbations, as one might expect for a highly impacted system.


2009 ◽  
Vol 85 (2) ◽  
pp. 169-186 ◽  
Author(s):  
M. C. Rufino ◽  
P. Tittonell ◽  
P. Reidsma ◽  
S. López-Ridaura ◽  
H. Hengsdijk ◽  
...  

2006 ◽  
Vol 68 (3) ◽  
pp. 338-354 ◽  
Author(s):  
Brij Gopal ◽  
Malavika Chauhan

2019 ◽  
Vol 39 (4) ◽  
pp. 325-332 ◽  
Author(s):  
Ranjana Yadav ◽  
Pratyush Kumar Malla ◽  
Damini Dash ◽  
Gitanjali Bhoi ◽  
Shesdev Patro ◽  
...  

PLoS ONE ◽  
2020 ◽  
Vol 15 (10) ◽  
pp. e0221833
Author(s):  
Aleksandre Gogaladze ◽  
Niels Raes ◽  
Jacobus C. Biesmeijer ◽  
Camelia Ionescu ◽  
Ana-Bianca Pavel ◽  
...  

2019 ◽  
Vol 230 ◽  
pp. 255-265 ◽  
Author(s):  
Enrica Imbert ◽  
Luana Ladu ◽  
Almona Tani ◽  
Piergiuseppe Morone

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