Diversity of spiders (Araneae: Arachnida) in selected mangrove ecosystems of Northmalabar, Kerala, India
VP Vineetha, Jerin George
A preliminary study was conducted to document the spider diversity in mangrove ecosystem, Kannur District, Kerala State in southern India. The study was conducted from January to July 2016. A total of 63 species of spider belonging to 30 genera of 13 families were recorded during the study. Araneidae was the dominant family corresponding to 21 species from 9 genera constituting 33% of the total spider population followed by Salticidae, Theridiidae and Thomisidae (11% each). Shannon’s index was used to calculate the spider diversity in each site. Highest diversity was observed at Mathikavu. The spiders collected during the study were classified into six ecological guilds based on their foraging mode. These are orb web weavers, stalkers, ground runners, foliage hunters, scattered line weavers and ambushers. Orb web weavers constituted the dominant feeding guild representing 48% of the total collection. They are followed by stalkers and foliage hunters constituting 19% and 3% respectively of the total catch.
VP Vineetha, Jerin George. Diversity of spiders (Araneae: Arachnida) in selected mangrove ecosystems of Northmalabar, Kerala, India. International Journal of Entomology Research, Volume 6, Issue 2, 2021, Pages 170-174