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Population dynamics and prey composition of Tetragnatha spiders(Araneae: Tetragnathidae) in semi-organic rice fields,Songkhla Province, southern Thailand |
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| รหัสดีโอไอ | |
| Creator | 1. Venus Saksongmuang 2. Tadashi Miyashita 3. Tewee Maneerat 4. Sara Bumrungsri |
| Title | Population dynamics and prey composition of Tetragnatha spiders(Araneae: Tetragnathidae) in semi-organic rice fields,Songkhla Province, southern Thailand |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2563 |
| Journal Title | Songklanakarin Journal of Science and Technology |
| Journal Vol. | 42 |
| Journal No. | 4 |
| Page no. | 725-733 |
| Keyword | biological control, long-jawed spider, generalist predator, paddy field, rice growing season |
| URL Website | https://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | Tetragnatha spiders are common predators in rice ecosystems. However, changes in their population numbers andavailability of prey types at each rice growth stage are poorly understood. Therefore, this study assessed the population dynamicsof Tetragnatha spiders and their prey composition during four stages of rice growth, including vegetative, reproductive, ripening,and after-harvesting in semi-organic rice fields in Songkhla Province of southern Thailand. The results showed that speciesrichness and abundance of spiders were significantly higher in the reproductive stage than in other stages. Main prey familiescaptured by Tetragnatha spiders varied with different growth stages. Chironomidae and Corixidae were the main prey in thevegetative and reproductive stages, while Delphacidae was the most common prey in the ripening stage and there was dominantprey in the after-harvesting stage. Overall, the different growth stages provided different rice structures for web attachment anddifferent prey, which influenced both the spider populations and prey composition. |
