Host phylogenetic diversity predicts the global extent and composition of tree pests,Ecology Letters

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Host phylogenetic diversity predicts the global extent and composition of tree pests
Ecology Letters ( IF 7.6 ) Pub Date : 2021-10-31 , DOI: 10.1111/ele.13908
Andrew V Gougherty ₁ , T Jonathan Davies _{1,

2}

Affiliation

Tree pests cause billions of dollars of damage annually; yet, we know little about what limits their regional composition and distribution. Here, we model the co-occurrence of 4510 pests and 981 tree host genera spread across 233 countries. We show the composition of tree pests is primarily driven by the phylogenetic composition of host trees, whereas effects of climate and geography tend to be more minor. Pests that utilise many hosts tend to be more widespread; however, most pests do not fill the geographic range of their hostsâ€”indicating that many pests could expand their extents if able to overcome barriers limiting their current distribution. Our results suggest that the establishment of pests in new regions may be largely dictated by the presence of suitable host trees, but more work is needed to fully understand the influences climate has on the distributions of individual pest species.

中文翻译：

寄主系统发育多样性预测全球范围内树木害虫的范围和组成

树木害虫每年造成数十亿美元的损失；然而，我们对限制其区域构成和分布的因素知之甚少。在这里，我们模拟了分布在 233 个国家/地区的 4510 种害虫和 981 种树宿主属的共存情况。我们表明树木害虫的组成主要由寄主树木的系统发育组成驱动，而气候和地理的影响往往较小。利用许多宿主的害虫往往更普遍；然而，大多数害虫并没有占据宿主的地理范围——这表明如果能够克服限制其当前分布的障碍，许多害虫可以扩大其范围。我们的研究结果表明，新区域有害生物的建立可能在很大程度上取决于合适的寄主树的存在，

更新日期：2021-12-10

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