Why in News?
Researchers discovered specimens of Vela carli in the Silent Valley National Park, Kerala, exhibiting gynandromorphy—a rare biological condition where an individual possesses both male and female physical characteristics.
Key Features
- Taxonomy: It belongs to the family Gecarcinucidae, a group of crabs highly adapted to freshwater habitats.
- Habitat:
- Endemism: Strictly endemic to the Central Western Ghats, primarily in Kerala and Tamil Nadu.
- Microhabitat: It is a nocturnal species that lives in damp, shaded areas like rocky streams, wet leaf litter, and waterlogged tree cavities.
- Physical Characteristics:
- Appearance: Features an inflated, box-like shell (carapace) with a brown-yellow top and a paler underside.
- Size: Described as a "tiny" crab, often less than an inch across.
- Ecological Significance:
- Bioindicator: Its presence typically indicates unpolluted and healthy freshwater ecosystems.
- Nutrient Cycling: Plays a vital role in local benthic nutrient recycling and detritus processing.
- Gynandromorphy vs. Hermaphroditism: Unlike hermaphrodites (which have functional organs of both sexes), a gynandromorph is a genetic mosaic where different parts of the body distinctly belong to different sexes due to early developmental anomalies.
Download Pdf
