当前位置: X-MOL 学术Bull. Entomol. Res. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Are the effects of hunger stage-specific? A case study in an aphidophagous ladybird beetle
Bulletin of Entomological Research ( IF 1.9 ) Pub Date : 2020-06-16 , DOI: 10.1017/s0007485320000309
Priya Singh 1 , Geetanjali Mishra 1 , Omkar 1
Affiliation  

Abstract Food availability is a fundamental factor determining an animal's potential fitness. Carry-over effects of food limitation from development to adulthood are known to influence reproduction, ageing, and tolerance to stress. We have examined the effect of stage-specific variation (before adult emergence or pre-emergence, post-emergence and post-mating) in food availability in Propylea dissecta (Mulsant). Larvae were reared separately on two different pre-emergence food regimes (abundant or restricted) until pupation. Newly emerged adults were further split into two groups and placed on abundant or restricted post-emergence regimes. After mating, females were split and reared on any one of two post-mating regimes. The results revealed that: (i) time to commence mating declined with increased food availability in pre- and post-emergence stages, (ii) mating duration increased with food availability post-emergence, (iii) highest reproduction output was observed in individuals who had abundant food pre- and post-emergence. However, food availability at the time of oviposition also had a strong influence on fecundity. Solo bouts of scarcity, regardless of which stage suffered them, were effectively managed in at least two of the three stages (pre-emergence, post-emergence, post-mating) had abundant food.

中文翻译:

饥饿阶段的影响是特定的吗?蚜虫瓢虫的案例研究

摘要 食物供应是决定动物潜在健康状况的基本因素。众所周知,食物限制从发育到成年的遗留效应会影响生殖、衰老和对压力的耐受性。我们已经研究了阶段特异性变异(成虫出现前或出现前、出现后和交配后)对 Propylea dissecta (Mulsant) 食物供应的影响。幼虫分别在两种不同的出土前食物制度(丰富或限制)中饲养,直到化蛹。新出现的成年人被进一步分为两组,并置于丰富或有限的出现后制度中。交配后,雌性被分开并在两种交配后的任何一种情况下饲养。结果表明:(i) 开始交配的时间随着出苗前和出苗后食物供应的增加而减少,(ii) 交配持续时间随着出苗后食物供应的增加而增加,(iii) 在出苗前食物充足的个体中观察到最高的繁殖产量和出现后。然而,产卵时的食物供应也对繁殖力有很大影响。单独的稀缺性,无论在哪个阶段遭受,都在三个阶段(出苗前、出苗后、交配后)中的至少两个阶段得到有效管理,食物充足。
更新日期:2020-06-16
down
wechat
bug