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| Terrestrial pest gastropod diversity and spatiotemporal variations in highland agricultural lands of Sri Lanka Thilakarathne, D.; Hirimuthugoda, N.; Ranawana, K.; Kumburegama, S. (2024). Terrestrial pest gastropod diversity and spatiotemporal variations in highland agricultural lands of Sri Lanka. Journal of Ecology and Environment 48: 07. https://dx.doi.org/10.5141/jee.23.042
In: Journal of Ecology and Environment: Cheongui. ISSN 2287-8327
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Results: Out of the 14 species recorded in agricultural lands, nine were identified as exotic pest species. Species abundance (t = 4.69, p < 0.05) and diversity was higher in the rainy period and the dominant species during this period were Bradybaena similaris (t = 2.69, p < 0.05) and Deroceras reticulatum (t = 2. 46, p < 0.05). Eggs and estivating adults were found in soil and under decaying organic matter during the non-rainy period. The exotic species showed broader preferences for the measured environmental factors and showed a wider range in distribution compared to the native species. Variation in pest gastropod composition was significantly accounted for by elevation, relative humidity, soil pH and daily rainfall. Additionally, the species richness and abundance varied across locations due to the combined effects of elevation, crop type and stage, and field type. Conclusions: The study emphasizes the importance of understanding the biology and ecology of gastropod pests to develop effective management strategies. By considering the influence of environmental factors and implementing appropriate soil management techniques, such as targeting specific habitats and crop stages, it is possible to mitigate pest populations and minimize their impact on agricultural lands. Overall, this research contributes valuable insights into the dynamics and interactions of terrestrial gastropods in agricultural ecosystems, supporting sustainable pest management practices. |
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