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VOL. 11, ISSUE 3 (2026)
Ecosystem engineering by the freshwater crab Barytelphusa cunicularis: Implications for nutrient cycling, habitat modification, and biodiversity conservation
Authors
Sharda N Padghane, Rahul R Kajalkar, Dilip H Dudhmal, Rupali S Babare
Abstract
Freshwater crabs play an important ecological role in maintaining the
structure and functioning of aquatic and terrestrial ecosystems. Among these, Barytelphusa
cunicularis is an ecologically significant freshwater crab distributed
across parts of the Indian subcontinent. Through its burrowing, feeding, and
sediment-disturbing activities, this species functions as an ecosystem engineer
by modifying physical habitats and influencing important ecological processes.
Burrowing and bioturbation enhance soil aeration, water infiltration, sediment
turnover, and the decomposition of organic matter. Its feeding activities
contribute to nutrient transformation and recycling, facilitating the
availability of essential nutrients within the ecosystem. Crab burrows and
modified substrates also provide shelter, breeding sites, and microhabitats for
various aquatic and terrestrial organisms, thereby contributing to habitat
heterogeneity and biodiversity. Despite these ecological functions, the
ecosystem-engineering role of B. cunicularis remains comparatively
understudied. This chapter reviews the available knowledge on the ecological
significance of B. cunicularis, with particular emphasis on habitat
modification, nutrient cycling, decomposition, soil and sediment processes, and
biodiversity enhancement. It further highlights the threats faced by freshwater
crabs, including habitat degradation, water pollution, overexploitation, and
environmental changes. Understanding and conserving B. cunicularis and
other freshwater crabs is therefore essential for maintaining ecosystem health,
ecological stability, and biodiversity in freshwater and associated terrestrial
habitats. statistical analyses were performed using the measurements of 12
burrow openings of Barytelphusa cunicularis. Major diameter, minor
diameter and surface area of each burrow opening were summarized using mean,
standard deviation, median, minimum and maximum values. Pearson's correlation
coefficient (r) was calculated to determine the relationships among major
diameter, minor diameter and burrow-opening surface area.
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Pages:558-563
How to cite this article:
Sharda N Padghane, Rahul R Kajalkar, Dilip H Dudhmal, Rupali S Babare "Ecosystem engineering by the freshwater crab <i>Barytelphusa cunicularis</i>: Implications for nutrient cycling, habitat modification, and biodiversity conservation". International Journal of Entomology Research, Vol 11, Issue 3, 2026, Pages 558-563
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