Abstract
The feeding activity of soil animals was measured by using bait lamina test in three main ecosystems, i.e. the teak forest, home garden and rainfed paddy field. Two additional ecosystems in rainfed paddy field, i.e. the old (permanently established bund around paddy fields) and new bunds were examined as well. Three blocks of bait-lamina sticks (each block consisting of 16 individual sticks) were exposed at each location. The bait lamina were retrieved from the soil after two days and visually assessed. Each hole is designated as “fed” (perforated) or “non-fed” hole. The feeding rate is measured as the absolute number of “fed” holes. Soil animals in the old bunds showed the highest feeding activity (55.20%), followed by home garden (39.10%), rainfed paddy field (16.50%), teak forest (15.60%), and new bund (7.80%). The frequency of animals attack to the bait strips also indicated the similar pattern as their feeding activity, i.e. high in the old bunds (0.90), followed by home garden (0.70), teak forest (0.40), new bunds (0.40) and rainfed paddy field (0.30), respectively.
Highlights
The feeding activity of soil animals was measured by using bait lamina test in three main ecosystems, i.e. the teak forest, home garden and rainfed paddy field
The bait-lamina test system, modified by Terra Protecta GmbH, Berlin, had wide application using a variant of PVC-stripes and a standard substrate mixture containing cellulose and bran flakes powder (70:30, m/m) and traces of active coal
The soil animals fed from the upper part (0-4 cm), in the old bund, which showed the highest reduction from the 1st up to the 16th hole of the bait lamina (Figure 4)
Summary
The feeding activity of soil animals was measured by using bait lamina test in three main ecosystems, i.e. the teak forest, home garden and rainfed paddy field. Soil animals in the old bunds showed the highest feeding activity (55.20%), followed by home garden (39.10%), rainfed paddy field (16.50%), teak forest (15.60%), and new bund (7.80%). This study was conducted to evaluate the feeding activity of soil animals in the three main ecosystems, i.e. teak forest, home garden and rainfed paddy field ecosystems in Pati, Indonesia. In addition to the soil animals feeding activity, their abundance and biomass in the three main ecosystems (teak forest, home garden and rainfed paddy field) were evaluated using a soil corer of 20 cm diameter to the depth of 15 cm (Meyer 1996) from five randomized points in the above ecosystems.
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