相对湿度对咖啡豆象生长发育、繁殖及种群增长的影响

发布时间：2018-07-05 06:17

本文选题：咖啡豆象 + 相对湿度　；参考：《应用昆虫学报》2016年01期

【摘要】：【目的】研究在实验室条件下,咖啡豆象Araecerus fasciculatus生命活动对不同相对湿度环境的适生性,并通过组建实验种群生命表,明确相对湿度对其种群增长的影响。【方法】实验设定30%、45%、60%、75%、90%5个相对湿度梯度,观察比较咖啡豆象卵、幼虫、蛹历期及其存活率、成虫寿命、单雌产卵量。【结果】在30%~90%范围内,随相对湿度的增加咖啡豆象幼虫发育历期缩短,卵至蛹期存活率、成虫寿命及繁殖力提高。相对湿度为90%时,卵、幼虫、蛹存活率最高且发育历期最短,成虫寿命最长,单雌产卵量最高。各湿度生命表参数内禀增长率(r_m)在0.197~0.319之间,相对湿度75%时最高;净增殖率(R_0)在9.653~73.493之间,相对湿度90%时最高。此外,内禀增长率(r_m)、净增殖率(R_0)与相对湿度关系符合Logistic模型,分别为y=0.32/1+exp(1.71-0.07x)(R~2=0.90442,P=0.00201)和y=78.13/1+exp(5.03-0.09x)(R2=0.98931,P=0.00213)。【结论】研究表明相对湿度是影响咖啡豆象生长发育、繁殖力、种群增长的重要因素,有助于进一步了解气象环境条件对咖啡豆象的影响,同时为其种群增长数学模型的拟合提供参考。
[Abstract]:[objective] to study the adaptability of Araecerus fasciculatus life activity to different relative humidity environment in laboratory, and to establish the life table of experimental population. To determine the effect of relative humidity on the population growth. [methods] the experiment set up 300.4545kyong and 60kyung, including 905 relative humidity gradients, observed and compared the egg, larva, pupa duration and survival rate of the coffee bean elephant, the adult life span, the number of eggs laid by a single female. [results] within the range of 30% or 90%, With the increase of relative humidity, the larval development period of coffee bean elephant was shortened, the survival rate of egg to pupa, the longevity and fecundity of adult were increased. When the relative humidity is 90, the survival rate of eggs, larvae and pupae is the highest and the development period is the shortest, the adult life is the longest, and the number of eggs laid by single female is the highest. The intrinsic growth rate (r _ S _ m) of each humidity life table parameter is between 0.197 and 0.319, and the maximum relative humidity is 75, the net multiplication rate (R0) is between 9.653 and 73.493, and the relative humidity at 90 is the highest. In addition, the intrinsic growth rate (RIM), the net proliferative rate (RV) and the relative humidity (RV) were in accordance with the Logistic model, which were YJ 0.32% 1 exp (1.71-0.07x) (RPX 0.90442 exp 0.00201) and YJ78.13.1 exp (5.03-0.09x) (R22O0.98931P0. 00213). [conclusion] the study shows that RH is an important factor affecting the growth, development, fecundity and population growth of Coffea. It is helpful to further understand the influence of meteorological environment on coffee bean and to provide a reference for fitting the mathematical model of population growth.
【作者单位】：中国农业科学院植物保护研究所植物病虫害生物学国家重点实验室;
【基金】：国家自然科学基金委创新群体项目31321004 973项目2012CB114104
【分类号】：S433

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