Diet-dependent survival, development and fecundity of the spider Atypena formosana (Oi) (Araneae: Linyphiidae) -: Implications for biological control in rice
Diet-dependent survival, development and fecundity of the spider Atypena formosana (Oi) (Araneae: Linyphiidae) -: Implications for biological control in rice
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DOI：
10.1080/09583150120035657
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发表时间：
2001-04-01
影响因子：
1.4
通讯作者：
Villareal, S
中科院分区：
文献类型：
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作者：
Sigsgaard, L;Toft, S;Villareal, S
本研究以褐飞虱、绿叶蝉、绿叶蝉、弹尾目昆虫以及弹尾目、跳甲与果蝇混合饲料为饲料，探讨台湾扁尾虫的发育时间。饥饿处理作为对照。我们检验了这样一个假设，即由于食物质量的差异，饮食会对生存和发育产生不同的影响。不同饮食的存活率差异显着。没有蜘蛛存活到成年的饮食GLH，只有一个单独的生活在饮食的BPH，而70%的存活到成年的弹尾目饮食和所有存活的混合饮食。发育时间显着不同的饮食测试。蜘蛛在混合食物和弹尾目食物中发育最快。在48 h内消耗的猎物的生物量和总生物量的猎物消耗完成一个年龄的混合饮食最高。最后，混合饮食导致更高的繁殖力比弹尾目饮食。它的结论是，替代猎物是绝对必要的，BPH和GLH饮食本身将无法增加捕食者的数量，无论数量的跳跃。
The development time of Atypena formosana was assessed on four different diets: (1) brown planthopper (BPH), Nilaparvata lugens; (2) green leafhopper (GLH), Nephotettix virescens; (3) Collembola (Entomobryidae); and (4) a mixed diet of Collembola, hoppers and Drosophila melanogaster. A starvation treatment served as a control. We tested the hypothesis that because of differences in food quality, the diets would affect survival and development differently. Survival differed significantly among the diets. No spiders survived until adult on the diet of GLH, only a single individual survived on the diet of BPH, whereas 70% survived until adult on the Collembola diet and all survived on the mixed diet. Development times were significantly different among the diets tested. Spiders developed fastest on the mixed diet and the Collembola diet. The biomass of prey consumed within 48 h and the total biomass of prey consumed to complete an instar were highest on the mixed diet. Finally the mixed diet resulted in higher fecundity than the Collembola diet. It is concluded that alternative prey are an absolute necessity, as BPH and GLH diets alone would not be able to increase the number of predators, regardless of the number of hoppers present.