温度对甘蔗上红棕象甲（鞘翅目：象甲科）种群增长的影响

Effect of temperature on the population growth of Rhynchophorus ferrugineus (Coleoptera: Curculionidae) on sugarcane.

作者信息

Li Lei, Qin Wei-Quan, Ma Zi-Long, Yan Wei, Huang Shan-Chun, Peng Zheng-Qiang

机构信息

Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wenchang Hainan, China.

出版信息

Environ Entomol. 2010 Jun;39(3):999-1003. doi: 10.1603/EN09316.

DOI:10.1603/EN09316

PMID:20550815

Abstract

The effect of temperature on the developmental time, survival, and reproduction of Rhynchophorus ferrugineus (Olivier) reared on sugarcane was studied at seven constant temperatures (16, 20, 24, 28, 32, 36, and 40 degrees C). The developmental threshold temperatures and effective accumulated temperatures for the whole generation were 17.41 degrees C and 1,590.72 DD, respectively. One generation had the highest survival rate (26.67%) at 28 degrees C. The egg failed to survive at 16 and 40 degrees C. The population trend index (I = 38.22) and net reproductive rate (R(o) = 38.3) were highest at 28 degrees C. The net reproductive rate (R(o) = 3.36), intrinsic rate of increase (r(m) = 0.0028), and finite capacity of increase (lambda = 1.0028) were lowest at 20 degrees C. The mean generation time (T(o) = 85.82) was shortest at 36 degrees C. The population double time (PDT = 27.08) was shortest at 32 degrees C. Based on these studies, we concluded that the temperatures from 28 to 32 degrees C were the most suitable temperatures for the development of R. ferrugineus.

摘要

在七个恒定温度（16、20、24、28、32、36和40摄氏度）下，研究了温度对以甘蔗为食的红棕象甲（Olivier）发育时间、存活率和繁殖率的影响。整个世代的发育阈值温度和有效积温分别为17.41摄氏度和1590.72日度。在28摄氏度时，一代的存活率最高（26.67%）。在16和40摄氏度时，卵无法存活。在28摄氏度时，种群趋势指数（I = 38.22）和净繁殖率（R₀ = 38.3）最高。在20摄氏度时，净繁殖率（R₀ = 3.36）、内禀增长率（rₘ = 0.0028）和有限增长率（λ = 1.0028）最低。在36摄氏度时，平均世代时间（T₀ = 85.82）最短。在32摄氏度时，种群加倍时间（PDT = 27.08）最短。基于这些研究，我们得出结论，28至32摄氏度是红棕象甲发育的最适宜温度。