Eduardo Engel, Ana Lúcia de Paula Ribeiro, Alessandro Dal'Col Lúcio, Mauricio Paulo Batistella Pasini, Jerônimo Zamberlan Buzzatti, Francisco Teixeira Rodrigues, Luthyana Oliveira Cassol, Wesley Augusto Conde Godoy
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引用次数: 0
Abstract
Co-occurrence a correlation profiles are driven by different factors (exogenous and endogenous) and drawing a profile of association between species based on co-occurrence, without assessing how these species vary in terms of ecological niche can lead to wrong conclusions. The objective was to determine the co-occurrence and correlation patterns of phytophagous insects in canola crop and to evaluate how these patterns varied according to the crop stage (phenology-biotic) and sowing times (agricultural practice-abiotic). We found that the patterns of co-occurrence and correlation between species were reflections of population variations due to the phenology and sowing times of canola. Variations in the multi-species abundance matrix were influenced by mean air temperature and accumulated rainfall. The main species associated with canola in southern Brazil, in terms of abundance, were P. xylostella, D. speciosa, and N. viridula. These species were mostly negatively associated. When evaluating their population variations, we found that they explore different temporal niches, whether in terms of phenology or sowing times. Finally, we demonstrate empirically that despite being important, association patterns based on co-occurrence and correlation should be interpreted in light of the understanding of patterns of niche exploitation and temporal variation of species.
共现和相关模式受不同因素(外因和内因)的驱动,如果不评估这些物种在生态位方面的差异,就根据共现情况得出物种间的关联模式,可能会得出错误的结论。我们的目的是确定油菜作物中植食性昆虫的共生和相关模式,并评估这些模式如何随作物阶段(物候-生物)和播种时间(农业实践-非生物)而变化。我们发现,物种间的共现和相关模式反映了油菜花物候和播种时间导致的种群变化。多物种丰度矩阵的变化受到平均气温和累积降雨量的影响。就丰度而言,巴西南部与油菜籽相关的主要物种是 P. xylostella、D. speciosa 和 N. viridula。这些物种大多呈负相关。在评估它们的种群变化时,我们发现它们在物候学或播种时间方面探索了不同的时间壁龛。最后,我们通过经验证明,基于共生和相关性的关联模式尽管重要,但仍应根据对物种的生态位利用模式和时间变化的理解来解释。
期刊介绍:
Neotropical Entomology is a bimonthly journal, edited by the Sociedade Entomológica do Brasil (Entomological Society of Brazil) that publishes original articles produced by Brazilian and international experts in several subspecialties of entomology. These include bionomics, systematics, morphology, physiology, behavior, ecology, biological control, crop protection and acarology.