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Functional redundancy in carrion decomposition by temperate forest ant communities 温带森林蚂蚁群落分解腐肉的功能冗余
IF 2 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-08-19 DOI: 10.1111/een.13370
Angela Salido, Joaquín L. Reyes-López, Deseada Parejo, Jesús M. Avilés

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引用次数: 0
Mistletoes benefit from initiating cascading effects in a cactus–stem borers–arthropods system: A positive feedback 仙人掌--茎蛀虫--节肢动物系统中的级联效应使槲寄生从中受益:正反馈
IF 2 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-08-14 DOI: 10.1111/een.13371
Patricia C. Guerra, Víctor M. Escobedo, Ernesto Gianoli

寄生植物可通过诱导寄主植物的抗性/易感性间接改变节肢动物群落结构。在阿塔卡马沙漠,槲寄生植物Tristerix aphyllus会对其仙人掌宿主Echinopsis chiloensis产生级联效应,诱导其对螟虫的易感性,而螟虫的育雏室则被多种节肢动物群落所占据。我们评估了崔斯特里克引发的这些连锁效应是否会对这种寄生植物产生正反馈或负反馈循环。如果槲寄生对节肢动物群落产生的间接影响分别导致槲寄生适应性的提高或降低,那么就会产生正反馈或负反馈循环。具体来说,我们通过野外取样、实验操纵育雏室数量和结构方程建模,评估了育雏室数量通过影响节肢动物营养行会(杂食性动物、蜜食性动物、草食性动物和捕食性动物)的丰度对槲寄生适应性的间接影响。我们发现,育雏室的数量对槲寄生的适应性有积极的间接影响,这可能是通过增加食蜜者的数量来实现的。育雏室的数量与捕食者、食蜜者和食草者的数量呈正相关。然而,蜜食性动物是唯一与育雏室数量和三姐妹健康状况均呈正相关的营养群。这种正反馈循环,加上已知的特异性散播者介导的仙人掌被Tristerix循环再感染的模式,表明槲寄生感染可能最终威胁仙人掌的生存。
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引用次数: 0
The quantity of deposited environmental DNA in plant–arthropod interactions depends on taxon, abundance and interaction time 植物与节肢动物相互作用过程中环境 DNA 的沉积量取决于分类群、丰度和相互作用时间
IF 2 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-08-13 DOI: 10.1111/een.13372
Sarah Friedrich, Mattia De Vivo, Christian Ulrich Baden, Michael E. Grevé, Christian Maus, Thomas Udelhoven, Henrik Krehenwinkel

环境 DNA(eDNA)代谢编码作为一种检测植物-昆虫相互作用的简单而有效的工具,前景十分广阔。然而,非生物因素和生物因素对这些相互作用中 eDNA 沉积的影响尚不十分清楚。特别是 eDNA 丰度在多大程度上反映了昆虫与植物之间相互作用的频率或强度,还有待检验。我们通过实验分析了三种昆虫(南方绿蝽 Nezara viridula、芥子甲 Phaedon cochleariae 和秋军虫 Spodoptera frugiperda)的 eDNA 在两种具有不同吸引力的寄主植物叶片上的定量沉积情况:大白菜(Brassica oleracea var. sabauda,首选寄主)和番茄(Solanum lycopersicum,次选寄主)。我们测试了昆虫分类、寄主植物、暴露时间和植物材料上相互作用昆虫数量的影响。我们的数据显示,在 eDNA 沉积过程中存在明显的定量生态信号。昆虫丰度和相互作用时间反映在沉积的 eDNA 数量上。此外,沉积在卷心菜(首选寄主植物)上的 eDNA 明显更多。除了这些生态驱动因素外,还观察到不同昆虫类群之间存在非常强烈的分类学 eDNA 沉积偏差。eDNA 检测受到目标类群生态相互作用的强烈影响,这突出表明该工具可用于专门检测植物与节肢动物之间的营养相互作用。然而,eDNA沉积中的分类偏差排除了对群落层面相互作用的比较分析。
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引用次数: 0
Pit builders are assisted by walls to find suitable sites for pit construction but are slowed down by obstacles and their initial distance from the destination 基坑建造者在墙壁的帮助下找到合适的基坑建造地点,但会因障碍物和与目的地的初始距离而减慢速度
IF 2 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-07-31 DOI: 10.1111/een.13368
Noah Michaeli, Yoav Nadu, Aziz Subach, Inon Scharf

栖息地选择对动物的生存和繁殖起着至关重要的作用,对所有重要行为都有影响。动物对栖息地的熟悉程度往往有限,它们需要依靠感官和栖息地结构来发现合适的定居地点。在此,我们重点研究了一种在松软土壤中建造陷阱的捕食者--蚯蚓,并研究了与合适的微生境的距离和障碍物的存在如何影响其生境选择。我们进行了四项实验。实验一评估了距离对虫蜥到达合适微生境概率的影响。实验 2 考察了距离与障碍物之间的相互作用。实验 3 调查了墙壁对到达目的地概率的影响。实验 4 将墙壁视为引导路径或障碍物。我们的结果表明,与目的地距离的增加会对小虫到达目的地的概率产生负面影响,体型较大的个体更有可能走更远的距离。障碍物会与距离产生相互作用,一般来说,如果存在障碍物,运动量就会减少。墙壁对定向有积极影响,通过沿着墙壁或沿着墙壁找到目的地,帮助蠕虫到达合适的地点。墙壁的功能各不相同,有时会促进蠕虫的移动,有时则会减少蠕虫的移动,这取决于它们的方向和环境。这些研究结果表明,在城市环境中,墙壁可以作为蚯蚓的导航辅助工具,帮助它们找到合适的微生境。这对理解城市生态系统中的栖息地选择具有重要意义。未来的研究应该探索在更自然的环境中,墙壁对蠕虫生存和栖息地质量的长期影响。
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引用次数: 0
Reduced size in a montane butterfly at its warm range boundaries 山地蝴蝶在其温暖分布区边界的体型缩小
IF 2 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-07-29 DOI: 10.1111/een.13369
Melissa Minter, Kanchon K. Dasamahapatra, Mike D. Morecroft, Chris D. Thomas, Jane K. Hill

昆虫体型的变化通常与发育过程中的温度有关,如果较小个体的适应性降低,可能会影响种群在未来气候变暖条件下的持续生存。因此,我们研究了英国蝴蝶 Erebia epiphron(鳞翅目:蛱蝶科)体型的时空变化。我们研究了体型与温度相关的时空变化。2018年至2019年期间,我们在英格兰和苏格兰海拔380米至720米的地区采集了19个种群样本(每个种群6-15只),并研究了1890年至1980年间采集的博物馆标本。我们研究了个体体型(前翅长度)及其与地点当地温度的关系,以及上个世纪体型与幼虫发育期间温度的时间变化关系。英格兰野外采集的个体前翅长度比苏格兰平均小7%-8%(英格兰平均=14.9毫米,苏格兰平均=15.9毫米),温度较高的地点个体也较小(当地平均温度每升高1°C,翅长减少0.13毫米)。然而,我们没有发现幼虫发育过程中温度的时间变化对体型变化的影响。在英国种群中观察到的较小体型可能会对繁殖力和扩散能力产生影响。未来的工作应寻求了解这两个种群的生命周期长度、遗传学和表型可塑性,以评估区域差异的潜在解释。
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引用次数: 0
Landscape effects on dispersal-related traits in a sedentary butterfly in agricultural landscapes 农业景观对一种定居蝴蝶扩散相关特征的景观影响
IF 2 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-07-19 DOI: 10.1111/een.13367
Franziska Deppe, Christoph Achterberg, Johanna-Marie Dittmar, Steffen Kunz, Lara Müller, Lara Näckel, Luisa Wittkamp, Klaus Fischer

农业集约化造成了自然栖息地的丧失和破碎化,对农田生物多样性产生了负面影响。与此同时,重要资源的隔离可能有利于提高飞行昆虫的扩散能力,从而导致不同景观中飞行形态和扩散倾向的差异。我们在四组重复的地貌景观中采集了蝶形花蜉蝣(Coenonympha pamphilus),每组景观由(a)高度破碎化和集约化的 "现代 "地貌景观和(b)破碎化程度较低的 "传统 "农业地貌景观组成。我们比较了两种景观类型中采集到的蝴蝶的状况(即储量)、飞行形态、扩散能力和倾向。我们还测试了不同空间尺度的景观组成和配置对蝴蝶特征的影响。结果发现,不同景观类型之间没有差异,但各种景观特征都会影响蝴蝶的性状,这表明景观异质性与蝴蝶扩散之间存在复杂的相互作用。特别是,农作物田比例较高的景观似乎被选择为提高扩散能力的表型。由于扩散是破碎景观中元种群持续存在的一个关键因素,我们认为,在讨论农业景观中昆虫数量下降的问题时,应考虑与组成和构型景观异质性有关的扩散限制因素。
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引用次数: 0
Successful gall induction on wild roses by gall wasps under lab conditions 五倍子蜂在实验室条件下成功诱导野玫瑰形成虫瘿
IF 2 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-07-19 DOI: 10.1111/een.13366
Zoltán László, Bálint Szilágyi, Borbála Macalik, Mátyás Biró, Constantin-Teodor Iordache, Marco Nicula, Dorina Podar

植物虫瘿是由包括昆虫在内的各种生物造成的一种独特的外植体,是诱导体幼虫的养料。尽管分类学家和生态学家试图阐明植物虫瘿形成背后的机制,但对其的了解仍不全面。现代遗传技术可以对分子过程进行深入分析,但不同物种之间的差异使分析陷入困境。建立对实验室友好的植物瘿诱导体群落至关重要,但以往的尝试都面临挑战。我们的研究部分旨在建立一个实验室群落,其中包括野玫瑰(蔷薇属)和作为引诱虫的蔷薇瘿蜂属 Diplolepis。为植物生长优化了可控的室内条件。移栽野玫瑰,然后将其暴露在虫瘿诱导体中,并对其进行监测。对成功初始化的虫瘿生长情况进行了测量和分析,揭示了植物活力对虫瘿大小的影响。我们的研究成功地建立了一个新的实验室社区,用于进一步研究虫瘿的形成机制。
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引用次数: 0
To stay or not to stay? Temporal shifts in dung beetle occupancy in a cloud forest landscape 留还是不留?云雾森林景观中蜣螂栖息地的时间变化
IF 2 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-07-18 DOI: 10.1111/een.13364
Julliana Barretto, Emilio Alfonso Suárez-Domínguez, Carlos A. Cultid-Medina, Federico Escobar

动态占据模型可估算个体在不同季节占据、发现、灭绝和定居的概率,因此是确定个体是否选择一个地点以改善种群表型和适应性的有用工具。我们使用多季节动态占据模型来评估非生物因素(月度变化、森林和边缘的百分比以及温度)和生物因素(雌性丰度)如何影响墨西哥云雾林中人类改造景观中不同栖息地偏好的桡食性甲虫 Deltochilum mexicanum 和 Dichotomius satanas 的种群动态。对于这两种甲虫,我们共捕获了 1069 个个体,在森林地区的密度为每个诱捕器 48.2 个个体,在非森林地区的密度为每个诱捕器 14.8 个个体。这两个物种在景观中的时空占有动态存在差异。具体来说,我们发现月度变化、森林覆盖率和边缘覆盖率对这两个物种的模型都有影响。每个物种的模型参数都有一组特定的解释协变量,这表明物候和人口调控机制是一年中时空占用的驱动因素。我们强调了将非生物因素(景观特征)视为占用率驱动因素的重要性,尤其是在高度异质性景观中。这种认识对于确定景观对蜣螂的分布和发生的影响非常重要,因为它可以确定森林物种和普通物种在物候方面的定殖和灭绝模式有何不同。
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引用次数: 0
Contrasting responses of drosophila pupal parasitoids to heat waves in the larval and adult stages 果蝇蛹寄生虫在幼虫和成虫阶段对热浪的不同反应
IF 2 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-07-15 DOI: 10.1111/een.13365
Tiantian Liu, Weizhou Ren, Wantong Jiang, Jiatai Wang, Xinqiang Xi

寄生虫的生活史分为寄生在寄主无脊椎动物体内或寄生在寄主无脊椎动物身上的未成熟阶段和自由生活的成虫阶段。我们测试了两种世界性果蝇蛹寄生虫 Pachycrepoideus vindemiae(膜翅目:Pteromalidae)和 Trichopria drosophilae(膜翅目:Diapriidae)在幼虫和成虫阶段分别暴露于 35 和 40°C 热浪时的表现。此外,我们还测试了幼虫阶段的热硬化是否会影响成虫对热浪的耐受性。我们没有发现在幼虫阶段经历过热硬化的成蜂的耐热性有明显提高。经历过35°C热浪的嗜水蝇幼虫发育时间较长,但存活下来的个体与未经历过升温的个体相比,寿命和繁殖力没有明显下降。相比之下,35°C热浪造成的嗜水蝇成虫死亡率较低,但存活下来的个体寿命和繁殖力明显下降。我们的研究清楚地揭示了两种寄生虫的幼虫期和成虫期对热浪的不同反应,并强调了热耐受性的个体发育差异对预测寄生虫分布和种群动态的重要性。
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引用次数: 0
Hatching asynchrony affects intraspecific competition among larval mosquitoes 孵化异步影响幼蚊之间的种内竞争
IF 2 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-07-10 DOI: 10.1111/een.13363
Melanie Szasz, Katherine G. Evans, Steven A. Juliano

伊蚊卵可能同步孵化,产生年龄和大小相似的个体,也可能不同步孵化,产生年龄和大小不同的个体,这取决于降雨量。多种淡水物种的幼体发育同步性也有类似的变化。与同步孵化相比,我们检验了异步孵化通过以下方式改变埃及伊蚊(Diptera: Culicidae)种内竞争的其他假设:(1)优先效应;或(2)减少时间上的重叠。我们在同一时间(同步孵化)或相隔 4 天(异步孵化)将成对的新孵幼虫放入装有食物的水瓶中,并记录所孵化成虫的存活率、性别、发育时间和翅长。与同步孵化相比,异步孵化产生的雌性成虫体型更大,但对雄性成虫的体型、存活率和发育时间没有影响。对于初孵成鱼,与同步孵化相比,异步孵化产生的雌雄成鱼体型更大,发育时间更短。这些结果与异步孵化减少了种内竞争的影响这一假设是一致的,这可能是因为异步孵化减少了幼虫共同出现的时间。我们发现优先效应的证据有限,这表明4天异步孵化的主要效应是减少了种内竞争,可能是通过减少时间上的重叠。这些结果表明,优先优势只是异步的一种可能效应,在某些情况下,发育异步可能会带来好处。在不同的资源水平下进行不同程度的异步实验,将加深我们对幼虫蚊子之间种内竞争的了解,也可能加深我们对其他具有不同孵化异步性的淡水类群的了解。
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引用次数: 0
期刊
Ecological Entomology
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