Spider fauna of soybean crops in south-east Queensland and their potential as predators of Helicoverpa spp. (Lepidoptera: Noctuidae)

Spiders are among the most abundant predators recorded in grain crops in Australia. They are voracious predators, and combined with their high abundance, may play an important role in the reduction of pest populations. The significance of spider assemblages as biological control agents of key pests such as Helicoverpa spp. in Australian agroecosystems is largely unknown. A thorough inventory was made of the spider fauna inhabiting unsprayed soybean fields at Gatton, south-east Queensland. One-hundred-and-two morphospecies from 28 families were collected using vacuum sampling and pitfall traps across two summer seasons (2000-01, 2001-02). No-choice feeding tests in the laboratory, using eggs and larvae of Helicoverpa armigera (Hubner) as prey, were used to ascertain the predatory potential of each spider group. The field-collected spider assemblage ate on average 2.4 (+/-0.7 standard error) to 5.0 (+/-0.8) eggs per 24 h per spider (10-25% of those available), depending on level of starvation. Clubionidae were the only spiders to readily consume eggs in the laboratory (mean of 18.4 +/- 1.5 eggs per starved spider and 8.2 +/- 3.9 per non-starved spider after 24 h). Starved spiders consumed 9.4 (+/- 0.1) first-instar larvae per 24 h per spider (90% of those available). This information was combined with field observations and literature from Australian and overseas studies to assess the potential of spider groups as predators of Helicoverpa spp. Lycosidae, Clubionidae, Oxyopidae, Salticidae and Thomisidae have the capacity to contribute to control of Helicoverpa spp.

Women, violence and nonviolent resistance in east Timor

A growing literature in peace and conflict studies assesses the relationship between women and nonviolence. Numerous national liberation fronts and academic critiques assess how women participate in nonviolent resistance from Tibet and West Papua to Palestine and Eritrea. However, many liberation struggles that include female nonviolent resistance remain undocumented, and this article aims to delve into one case study in particular. The article examines the nonviolent roles adopted by women in the East Timorese liberation struggle, a national liberation movement in which the participation of female combatants was low but nonviolent participation by women in the resistance movement overall was high. However, the consequences for such women was, and remains, shaped by the overarching patriarchal structures of both the Indonesian occupiers and East Timorese society itself Female nonviolent resistance was met with highly violent responses from Indonesian troops, especially in the form of rape and sexual exploitation. Yet, this study also found that women acting under religious auspices faced less violent responses overall. Interviews with East Timorese women are used to reveal some of the sexual dynamics of nonviolent action and reprisal. This material is placed in the context of theoretical work on gender, violence and nonviolence.