TEMPERATURE-DEPENDENT FUNCTIONAL-RESPONSE OF THE PARASITOID CEPHALONOMIA-WATERSTONI (GAHAN) (HYMENOPTERA, BETHYLIDAE) ATTACKING RUSTY GRAIN BEETLE LARVAE (COLEOPTERA, CUCUJIDAE)
TEMPERATURE-DEPENDENT FUNCTIONAL-RESPONSE OF THE PARASITOID CEPHALONOMIA-WATERSTONI (GAHAN) (HYMENOPTERA, BETHYLIDAE) ATTACKING RUSTY GRAIN BEETLE LARVAE (COLEOPTERA, CUCUJIDAE)
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DOI：
10.1093/ee/20.3.872
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发表时间：
1991-06-01
影响因子：
1.7
通讯作者：
FLINN, PW
中科院分区：
文献类型：
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作者：
FLINN, PW
研究了寄主密度和温度对稻褐扁谷盗Cephalonomia waterstoni（Gahan）捕食4龄锈谷盗Cryptolestes ferrugineus（Stephens）功能反应的影响。 五个温度和六个主机密度使用。 将II型功能反应模型分别拟合到每个温度。 最大攻击率从25 ℃时的7.5头/12小时到38 ℃时的2.9头/12小时不等。 处理时间和瞬时搜索率随温度变化。 提出了一个新的函数响应方程，其中处理时间是温度的二次函数。 这个方程解释了83%的发病率变化。 虽然瞬时搜索率也受温度的影响，它是足够的，使只有处理时间的温度的函数，因为这两个参数是高度相关的。
The effects of host density and temperature on the functional response of the bethylid parasitoid Cephalonomia waterstoni (Gahan) attacking fourth-instar rusty grain beetle, Cryptolestes ferrugineus (Stephens) were examined. Five temperatures and six host densities were used. A type II functional response model was fit separately to each temperature. The maximum attack rate ranged from 7.5 larvae/12 h at 25-degrees-C, to 2.9 larvae/12 h at 38-degrees-C. Handling time and instantaneous search rate varied with temperature. A new functional response equation was developed in which handling time is a quadratic function of temperature. This equation explained 83% of the variation in attack rate. Although instantaneous search rate was also affected by temperature, it was sufficient to make only handling time a function of temperature because the two parameters were highly correlated.