Life cycle and food availability indices in Notiophilus biguttatus (Coleoptera, Carabidae)
Life cycle and food availability indices in Notiophilus biguttatus (Coleoptera, Carabidae)
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Notiophilus biguttatus（鞘翅目、步甲科）的生命周期和食物供应指数
DOI：
10.1111/j.1365-2311.1992.tb01036.x
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发表时间：
1992
影响因子：
2.2
通讯作者：
M. Berg
中科院分区：
文献类型：
--
作者：
G. Ernsting;J. A. Isaaks;M. Berg
抽象的。1捕食性步甲Notiophilus biguttatus F.并在实验室和现场研究了它们的实现。2在实验室条件下，研究了不同温度和食物条件下，花跳虫Orchesella cincta幼虫的摄食、生长、成虫的体长和产卵量。3温度对幼虫和成虫的取食率影响很大，进而影响其生长和产卵率。因此，生长率和ovi-位置率增加与猎物供应。4猎物供给对脂肪含量也有影响，但卵巢中成熟卵的数量与温度和猎物供给无关。5幼虫期成虫的大小受温度的影响，但受食物供应的影响更大。6对野外新鲜雌性的解剖表明，除冬末/早春和7月外，它们全年都产卵。7脂肪含量在春季较低，从7月开始，在夏季和秋季较高。饥饿期间的存活率在样品之间差异很大，似乎与生殖状态有关，而不是脂肪含量。从11个松树人工林采集的8个甲虫和跳虫样品显示，甲虫的脂肪含量和身体大小存在显著差异，后者介于实验室获得的最大值和最小值之间。9基于体型和脂肪含量的食物限制的结论并没有得到这些指数与弹尾虫密度之间关系的证实。
Abstract. 1 Food demands of the predatory carabid Notiophilus biguttatus F. and their fulfilment were studied in the laboratory and field. 2 In the laboratory, larval consumption, growth, adult body size and egg production were established for different regimes of temperature and food, the springtail Orchesella cincta. 3 Temperature strongly influenced feeding rate of larvae and adults and consequently growth and oviposition rates. Accordingly, growth rate and ovi‐position rate increased with prey supply. 4 Prey supply also had an effect on fat content, but the number of ripe eggs in the ovaries was related neither to temperature nor to prey supply. 5 Adult body size was affected by temperature during the larval period but more so by food supply. 6 Dissection of field fresh females showed them to bear eggs for the whole year, except in late winter/early spring and in July. 7 Fat content was low in spring and, from July on, high in summer and autumn. Survivorship during starvation differed widely between samples and seemed to be related to reproductive status rather than to fat content. 8 Samples of beetles and springtails from eleven pine plantations revealed for the beetles significant differences in fat content and body size, the latter ranging between the maximum and minimum value obtained in the laboratory. 9 Conclusions about food limitation based on body size and fat content were not corroborated by a relationship of these indices with springtail density.