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The spatiotemporal dynamics and range expansion of the red palm weevil in Israel
Journal of Pest Science ( IF 4.8 ) Pub Date : 2019-12-20 , DOI: 10.1007/s10340-019-01176-8
Eitan Goldshtein , Yafit Cohen , Amots Hetzroni , Yuval Cohen , Victoria Soroker

The red palm weevil (RPW), Rhynchophorus ferrugineus, an oligophagous borer that specifically attacks the Arecaceae family, poses a serious threat to commercial and ornamental palms. Originally from tropical Asia, the RPW has spread to Africa and Europe, reaching the Mediterranean region 30 year ago. Characterizing its spread is a key aspect of effectively managing its geographical expansion. Using georeferenced RPW occurrence data from 2012 to 2013 in Israel, we sought to better understand its spatial spread. Our objectives were to: (1) describe the spatiotemporal distribution of RPW in three regions (northern, western and southern) that were thought to constitute a risk to the vast date palm plantations across the Beit She’an Valley (BSH), (2) quantify the dynamics of spread; and (3) initially characterize the influence of host species on RPW dispersal. We found that the spatiotemporal distribution of RPW significantly differed between regions. The weevils’ geographical occupancy areas increased by 853% and 571% in the northern and western regions, respectively, while no increase was observed in the southern region. In the northern and western regions, RPW spread toward BSH date palm plantations and an initial analysis has shown that host area and RPW captures were significantly correlated. Based on our analysis, we propose the following hypotheses: (1) Ornamental and particularly Canary palms are highly favorable hosts for population establishment and dispersal in comparison with date palm plantations; (2) thus, the RPW spread from urban areas toward date palm plantations in BSH is attributed to the density and distribution of these hosts.

中文翻译:

以色列红棕榈象鼻虫的时空动态和范围扩展

红掌象鼻虫(RPW),Rhynchophorus ferrugineus,一种专攻槟榔科的低脂bore虫,对商业和观赏棕榈树构成了严重威胁。RPW最初来自热带亚洲,已经蔓延到非洲和欧洲,并在30年前到达了地中海地区。表征其传播是有效管理其地理扩展的关键方面。利用2012年至2013年以色列的地理参考RPW发生数据,我们试图更好地了解其空间分布。我们的目标是:(1)描述三个地区(北部,西部和南部)的RPW时空分布,这些地区被认为对横跨Beit She'an Valley(BSH)的大枣椰林构成了威胁,(2 )量化传播的动力;(3)最初表征宿主物种对RPW扩散的影响。我们发现,RPW的时空分布在区域之间存在显着差异。北部和西部地区象鼻虫的地理占有面积分别增加了853%和571%,而南部地区则没有增加。在北部和西部地区,RPW向BSH枣椰林蔓延,初步分析表明,寄主面积与RPW捕获量显着相关。根据我们的分析,我们提出以下假设:(1)与枣椰人工林相比,观赏棕榈尤其是金丝雀棕榈是种群建立和传播的高度有利寄主;(2)因此,从城市地区向BSH中的枣椰子种植园蔓延的RPW归因于这些寄主的密度和分布。北部和西部地区象鼻虫的地理占有面积分别增加了853%和571%,而南部地区则没有增加。在北部和西部地区,RPW向BSH枣椰林蔓延,初步分析显示,寄主面积与RPW捕获量显着相关。根据我们的分析,我们提出以下假设:(1)与枣椰人工林相比,观赏棕榈尤其是金丝雀棕榈是种群建立和传播的高度有利寄主;(2)因此,从城市地区向BSH中的枣椰子种植园蔓延的RPW归因于这些寄主的密度和分布。北部和西部地区象鼻虫的地理占有面积分别增加了853%和571%,而南部地区则没有增加。在北部和西部地区,RPW向BSH枣椰林蔓延,初步分析显示,寄主面积与RPW捕获量显着相关。根据我们的分析,我们提出以下假设:(1)与枣椰人工林相比,观赏棕榈尤其是金丝雀棕榈是种群建立和传播的高度有利寄主;(2)因此,从城市地区向BSH中的枣椰子种植园蔓延的RPW归因于这些寄主的密度和分布。而南部地区则没有增加。在北部和西部地区,RPW向BSH枣椰林蔓延,初步分析显示,寄主面积与RPW捕获量显着相关。根据我们的分析,我们提出以下假设:(1)与枣椰人工林相比,观赏棕榈尤其是金丝雀棕榈是种群建立和传播的高度有利寄主;(2)因此,从城市地区向BSH中的枣椰子种植园蔓延的RPW归因于这些寄主的密度和分布。而南部地区则没有增加。在北部和西部地区,RPW向BSH枣椰林蔓延,初步分析显示,寄主面积与RPW捕获量显着相关。根据我们的分析,我们提出以下假设:(1)与枣椰人工林相比,观赏棕榈尤其是金丝雀棕榈是种群建立和传播的高度有利寄主;(2)因此,从城市地区向BSH中的枣椰子种植园蔓延的RPW归因于这些寄主的密度和分布。(1)与枣椰人工林相比,观赏棕榈,尤其是金丝雀棕榈是建立种群和传播种群的高度有利寄主;(2)因此,从城市地区向BSH中的枣椰子种植园蔓延的RPW归因于这些寄主的密度和分布。(1)与枣椰人工林相比,观赏棕榈,尤其是金丝雀棕榈是建立种群和传播种群的高度有利寄主;(2)因此,从城市地区向BSH中的枣椰子种植园蔓延的RPW归因于这些寄主的密度和分布。
更新日期:2019-12-20
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