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首页> 外文期刊>Bulletin of Entomological Research >Investigating preference-performance relationships in aboveground-belowground life cycles: a laboratory and field study with the vine weevil (Otiorhynchus sulcatus).
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Investigating preference-performance relationships in aboveground-belowground life cycles: a laboratory and field study with the vine weevil (Otiorhynchus sulcatus).

机译：调查地上至地下生命周期中的偏好与绩效关系：使用藤本象鼻虫（ Otiorhynchus sulcatus ）进行的实验室和现场研究。

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The preference-performance hypothesis has principally considered insect herbivores with aboveground lifecycles, although the hypothesis could be equally relevant to insects with life stages occurring both aboveground and belowground. Moreover, most studies have focussed on either laboratory or field experiments, with little attempt to relate the two. In this study, the preference-performance hypothesis was examined in an aboveground-belowground context in the laboratory using the vine weevil (Otiorhynchus sulcatus (F.)) (Coleoptera: Curculionidae) and two cultivars of red raspberry (Rubus idaeus), Glen Rosa and Glen Ample. A two-year field study (2008-2009) was also undertaken to characterise the population dynamics of adult weevils on the two raspberry cultivars. Larval performance (abundance and mass) differed significantly between Glen Rosa and Glen Ample, with Glen Rosa resulting in 26% larger but 56% fewer larvae compared to Glen Ample. Larval abundances were significantly and positively correlated with root nitrogen and magnesium concentrations, but negatively correlated with root iron. However, concentrations of these minerals were not significantly different in the two cultivars. Adult weevils did not preferentially select either of the two cultivars for egg laying (laying 3.08 and 2.80 eggs per day on Glen Ample and Glen Rosa, respectively), suggesting that there was no strong preference-performance relationship between adult vine weevils and their belowground offspring. Field populations of adult vine weevils were significantly higher on Glen Ample than Glen Rosa, which may reflect the higher larval survival on Glen Ample observed in laboratory experiments.
机译：优先性能假说主要考虑了具有地上生命周期的昆虫食草动物，尽管该假说可能与在地上和地下都处于生命阶段的昆虫同等重要。此外，大多数研究都集中在实验室或现场实验上，很少尝试将两者联系起来。在这项研究中，在实验室中使用葡萄象鼻虫（ Otiorhynchus sulcatus （F.）（鞘翅目：Curculionidae）和两个红树莓品种（ Rubus idaeus ），Glen Rosa和Glen Ample。还进行了为期两年的田间研究（2008年至2009年），以表征两个树莓品种上成年象鼻虫的种群动态。 Glen Rosa和Glen Ample之间的幼虫性能（丰度和质量）显着不同，与Glen Ample相比，Glen Rosa的幼虫大26％，但少56％。幼虫的丰度与根系氮和镁含量呈显着正相关，而与根系铁呈负相关。然而，在两个品种中这些矿物质的浓度没有显着差异。成年象鼻虫没有优先选择两个品种中的一个进行产卵（Glen Ample和Glen Rosa分别每天产卵3.08和2.80个卵），这表明成年象鼻虫与其地下后代之间没有强烈的偏好－表现关系。 。 Glen Ample的成年葡萄象鼻的田间种群显着高于Glen Rosa，这可能反映了实验室实验中Glen Glen的幼虫存活率更高。

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