A Survey on Land Snail Species Composition Based on Their Microhabitat in Sukolilo Karst Area, Central Java, Indonesia

Fitri Jatmika Purnama Sari¹, Tri Cahyanto¹, Ayu Savitri Nurinsiyah²*

¹Jurusan Biologi, UIN Sunan Gunung Djati, Jalan A. H. Nasution No. 105, Bandung, Jawa Barat 40614, Indonesia

²Centrum für Naturkunde (CeNak) - Center of Natural History, Universität Hamburg, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany *(ayu.savitri.nurinsiyah@studium.uni-hamburg.de)

Abstract

Karst region is an area where contains high calcium carbonate, therefore it tends to have endemic biodiversity, such as land snail. One of these areas in Indonesia is Sukolio Karst Area. We investigated the land snail composition in Sukolilo karst area, District Grobogan and Pati, Central Java, and recorded its microhabitat. Twenty plots of 10m x 10m were explored by applying time search method (2 hours/person/plot) and 100L soil and leaf litter samples were sorted and sieved. The land snails were categorised by microhabitat type i.e, on the soil surface (H1), beneath the soil (H2), on leaf litter (H3), on low vegetation or herbaceous (H4), on the rock with moss (H5), on the rock without moss (H6), and on deadwood (H7). In the total of 1157 specimens from 13 families, 33 species and two subspecies were recorded. Most specimens were recorded on the soil surface (H1) and inside the soil or below the surface (H2) with 552 and 440 specimens respectively. The least specimens were found on deadwood where only a single specimen was recorded. On the other hand, H2 inhabits more species richness compared to H1, with 27 and 24 species respectively. There were more species recorded on a rock without moss (16 species) compare to rock with moss (5 species). Also, more species were recorded on leaf litter (8 species) in comparison to low vegetation or herbaceous (5 species). More thoroughly study on land snails as well as other taxa in Sukolilo karst area is highly recommended. The karst area had suffered massive limestone quarry. Fortunately, the Sukolilo karst is supported by environment-aware local people and community. This data is hopefully useful for Sukolilo karst’s conservation management.

Key words: Land snail, Sukolilo Karst, microhabitat.

Sari, F. J. P., Cahyanto, T., and Ayu S. Nurinsyiah. 2016. A Survey on Land Snail Species Composition Based on Their Microhabitat in Sukolilo Karst Area, Central Java, Indonesia. World Congress of Malacology. Penang, Malaysia, 18th—26th July 2016: Pg. 247

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