Population dynamics of red flour beetles, Tribolium castaneum (Herbst), was determined using three different sizes of grain patch (bulk) at different temperature profiles. Grain patches were 0.03 kg, 2 kg, and 14 kg of wheat with 14.5% moisture content (wb). The temperature profiles tested were constant temperatures of 21, 25, 30, 35 °C, and incrementally decreased or increased temperatures (T-decrease (Td) and T-increase (Ti)). Every 28 d up to 168 d, the live and dead adults were separated from the wheat and their numbers counted. At Td, adults were separated and counted every 28 d during the first 140 d, then one last time 70 d later. After separating and counting, these adults were discarded and the wheat, which contained immature stages, was incubated at 30 °C. Four weeks later the emerged adults (referred to as “offspring”) were counted. The number of both adults and offspring showed great variation among temperatures at the same storage time and the same patch size. The peak number and density of insects also showed variation among different temperatures and patch sizes. Peak live adult density was the highest in the small patches. The peak live adult densities were 300 ± 50 at 21 °C, 673 ± 118 at 25 °C, 689 ± 48 at 30 °C, 1100 ± 150 at 35 °C, 1150 ± 150 at Td, and 1133 ± 94 adults/kg at Ti. The offspring density at 35 °C was higher than that at other temperatures in the small patches. Even though many factors and their interaction influenced population dynamics of T. castaneum, the number of insects was mainly influenced by temperature at the same patch size, while large patch size could provide more room for insects to multiply.

红粉甲虫的种群动态，Tribolium castaneum(Herbst)，是在不同温度分布下使用三种不同尺寸的颗粒贴片（散装）确定的。谷物斑块分别为 0.03 kg、2 kg 和 14 kg 小麦，水分含量为 14.5% (wb)。测试的温度曲线是 21、25、30、35 °C 的恒温，并逐渐降低或升高温度（T 降低 (Td) 和 T 增加 (Ti)）。每隔28 d至168 d，将活的和死的成虫与小麦分开并计数它们的数量。在 Td，在前 140 天每 28 天分离并计数一次成虫，然后在 70 天后进行最后一次。分离和计数后，丢弃这些成虫，将含有未成熟阶段的小麦在 30°C 下孵育。四个星期后，对出现的成虫（称为“后代”）进行计数。成虫和子代的数量在相同的储存时间和相同的斑块大小的温度下表现出很大的变化。昆虫的峰值数量和密度也表现出不同温度和斑块大小的变化。在小斑块中，成年活体峰值密度最高。21 °C 时的峰值活成虫密度为 300 ± 50，25 °C 时为 673 ± 118，30 °C 时为 689 ± 48，35 °C 时为 1100 ± 150，Td 时为 1150 ± 150，以及 1133 ± 94 只成年公斤在 Ti。35℃下的后代密度高于小斑块中其他温度下的后代密度。尽管许多因素及其相互作用影响了人口动态 在小斑块中，成年活体峰值密度最高。21 °C 时的峰值活成虫密度为 300 ± 50，25 °C 时为 673 ± 118，30 °C 时为 689 ± 48，35 °C 时为 1100 ± 150，Td 时为 1150 ± 150，以及 1133 ± 94 只成年公斤在 Ti。35℃下的后代密度高于小斑块中其他温度下的后代密度。尽管许多因素及其相互作用影响了人口动态 在小斑块中，成年活体峰值密度最高。21 °C 时的峰值活成虫密度为 300 ± 50，25 °C 时为 673 ± 118，30 °C 时为 689 ± 48，35 °C 时为 1100 ± 150，Td 时为 1150 ± 150，以及 1133 ± 94 只成人公斤在 Ti。35℃下的后代密度高于小斑块中其他温度下的后代密度。尽管许多因素及其相互作用影响了人口动态T. castaneum，昆虫数量在相同斑块大小下主要受温度影响，而大斑块可以为昆虫提供更多的繁殖空间。