Diversity of snail communities (Mollusca: Gastropoda) in the riparian zone of the temporary Krčić River

Dorić, Valentina (2016) Diversity of snail communities (Mollusca: Gastropoda) in the riparian zone of the temporary Krčić River. Diploma thesis, Faculty of Science > Department of Biology.

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Abstract

Snail (Mollusca: Gastropoda) assemblages were studied in riparian and karstic habitats along the temporary Krčić River, situated beneath the Dinara Mountain. Snails were sampled by pitfall traps at 36 sites along the Krčić River from April until the end of November 2014. In total 4,346 individuals belonging to 49 species were collected. Five dominant species were recorded in riparian and three species in karstic habitats. Different seasonal activity patterns among sampled species were probably a result of species biology differences. Species richness, abundance and diversity are significantly higher in riparian habitats than in the karstic habitats. Non-metric multidimensional scaling analysis showed that there is no complete separation between riparian and karstic habitats, implying that the snail assemblages of these habitats are not mutually isolated. The same analysis showed greater similarity between riparian snail assemblages. Spatial distribution of snails was highly likely determined by the vegetation structure and abiotic factors which are more favourable for this group of animals in the riparian habitats.Air humidity was significantly higher, whereas air and soil temperatures were significantly lower in riparian habitats than the in karstic habitats.

Item Type: Thesis (Diploma thesis)
Keywords: Gastropoda, riparian, karstic habitats, abiotic factors
Supervisor: Lajtner, Jasna
Co-supervisor: Brigić, Andreja
Date: 2016
Number of Pages: 55
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 25 Mar 2016 09:23
Last Modified: 25 Mar 2016 09:23
URI: http://digre.pmf.unizg.hr/id/eprint/4652

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