Seasonal fluctuation of spider population in paddy fields

Hamamura, Tetsuzô

doi:10.2476/asjaa.22.40

Cited by 20 publications

(11 citation statements)

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“…P. pseudoannulata is one of most important predators of leafhoppers and planthoppers in paddies Kiritani et al, 1972). P. subpiraticus may also be an important predator of hoppers in paddies (Hamamura, 1969). The two species commonly inhabit the basements of the rice plant tillers.…”

Section: Methodsmentioning

confidence: 99%

Observational evidence that the diet of wolf spiders (Araneae: Lycosidae) in paddies temporarily depends on dipterous insects

Ishijima

Taguchi

Takagi

et al. 2006

Appl. Entomol. Zool.

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The diets of the wolf spiders Pardosa pseudoannulata and Pirata subpiraticus were elucidated by direct observation in paddies from July to September 2000. In July, dipterous insects were the most numerous prey consumed by P. pseudoannulata and the second numerous prey consumed by P. subpiraticus, comprising over 50% and over 20% of their respective diets. In contrast, in August, the proportion of dipterous insects decreased dramatically and hoppers were the most numerous prey, comprising over 60% and over 70% of all insects and spiders consumed by P. pseudoannulata and P. subpiraticus, respectively. In September, predators such as wolf spiders and aquatic Heteroptera were frequently observed in their diets. Overall, the green rice leafhopper, Nephotettix cincticeps, was the most numerous prey consumed by P. pseudoannulata and P. subpiraticus, followed by chironomids.

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Section: Methodsmentioning

confidence: 99%

Observational evidence that the diet of wolf spiders (Araneae: Lycosidae) in paddies temporarily depends on dipterous insects

Ishijima

Taguchi

Takagi

et al. 2006

Appl. Entomol. Zool.

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“…Similarly, an increasing density from the start of cultivation to midsummer was reported in spiders (Hamamura 1969;Sasanami & Kawahara 1970), zoobenthos (Kurasawa 1956), and in the total biomass of waterbird prey (González-Solís et al 1996). Similarly, an increasing density from the start of cultivation to midsummer was reported in spiders (Hamamura 1969;Sasanami & Kawahara 1970), zoobenthos (Kurasawa 1956), and in the total biomass of waterbird prey (González-Solís et al 1996).…”

Section: T Maedamentioning

confidence: 76%

The First Record of the Cinereous Vulture <i>Aegypius monachus</i> in Iwate Prefecture, Northern Honshu, Japan

Maeda

2017

Journal of the Yamashina Institute for Ornithology

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Rice fields, the most widespread cropland in Japan, provide important habitat for birds, but few studies have examined bird communities that are influenced by agriculture in rice fields. I studied the seasonal pattern of bird abundance and their habitat preferences in terms of agricultural habitats in the rice fields of the central Kanto Plain, central Japan. In total, 19 waterbird species and 31 landbird species were recorded over the study year. Waterbird occurrence was largely restricted to the cultivation season (i.e. the flooded season, May-August), with maximum abundance in August. Rice fields dried up during winter and supported few waterbirds except for irregular occurrences of little egrets (Egretta garzetta) and common snipes (Gallinago gallinago), which selectively used ditches with shallow water. Landbird abundance increased after the start of cultivation (May) to August, but more birds were attracted to the rice fields in midwinter (around January). For both waterbirds and landbirds, most species preferred levees and fallow grass fields, but avoided fields with rice vegetation. Unplowed fields after harvest were preferred by several species including skylarks (Alauda arvensis), while plowed fields were less attractive to most species. These results suggest the need for advanced agricultural practices to include improvement in habitat quality for birds.

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“…The habitats of T. praedonia were reported as follows; near river and pond (YOSHIDA, 1977a;YAGINUNA 1965;KAYASHIMA, 1966), in paddy field (KAIHOTsu, 1973;YAMANO & KIDO, 1975;OKUMA, 1978;HAMAMURA, 1969), in grassland and orchard (KAIHOTSU, 1979;TERADA et al, 1978;SUZUKI & OKUMA. 1975), in forest (HONDA, 1969(HONDA, , 1975, in garden (HONDA, 1974).…”

Section: Discussionmentioning

confidence: 99%

Preliminary Study on the Ecology of Three Horizontal Orb Weavers, Tetragnatha Praedonia, T. Japonica, and T. Pinicola (Araneae: Tetragnathidae)

Yoshida

1981

Acta Arachnologica

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Seasonal fluctuation of spider population in paddy fields

Cited by 20 publications

References 0 publications

Observational evidence that the diet of wolf spiders (Araneae: Lycosidae) in paddies temporarily depends on dipterous insects

Observational evidence that the diet of wolf spiders (Araneae: Lycosidae) in paddies temporarily depends on dipterous insects

The First Record of the Cinereous Vulture <i>Aegypius monachus</i> in Iwate Prefecture, Northern Honshu, Japan

Preliminary Study on the Ecology of Three Horizontal Orb Weavers, Tetragnatha Praedonia, T. Japonica, and T. Pinicola (Araneae: Tetragnathidae)

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