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Everywhere we look around: Aerial eDNA to capture fungal diversity 环顾四周航空电子 DNA 捕获真菌多样性
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-21 DOI: 10.1111/1365-2664.14766
Nahuel Policelli

Research Highlight discussing: Runnel, K., Lõhmus, P., Küngas, K., Marmor-Ohtla, L., Palo, A., Pütsepp, G., Tamm, H., Tammekänd, I., & Lõhmus, A. (2024). Aerial eDNA contributes vital information for fungal biodiversity assessment. Journal of Applied Ecology, https://doi.org/10.1111/1365-2664.14691. Fungi play key roles in ecosystems, yet it is not clear how best to capture their diversity or monitor their presence, especially for those species of particular conservation concern. In this issue of the Journal of Applied Ecology Runnel et al. address this problem by comparing different methodologies to estimate the diversity of lichen-forming fungi and wood-inhabiting basidiomycetes at a forest stand scale. Pairing aerial eDNA sampling with visual observation-based surveys better captured the full spectrum of fungal diversity, including cryptic species and those of particular conservation interest. Certain fungal groups that are underrepresented in air samples might be better captured by sampling eDNA directly from wood or soil, but visual surveys should be considered as a more cost-effective complementary method at least at a local scale. Their results highlight the importance of using multiple methods simultaneously in biodiversity assessments and the need for standardized methods to study and monitor fungal diversity.

研究亮点讨论:Runnel, K., Lõhmus, P., Küngas, K., Marmor-Ohtla, L., Palo, A., Pütsepp, G., Tamm, H., Tammekänd, I., & Lõhmus, A. (2024)。航空 eDNA 为真菌生物多样性评估提供了重要信息。应用生态学杂志》,https://doi.org/10.1111/1365-2664.14691。真菌在生态系统中发挥着关键作用,但目前尚不清楚如何才能最好地捕捉其多样性或监测其存在,尤其是那些需要特别保护的物种。在本期《应用生态学杂志》上,Runnel 等人通过比较不同的方法来估算林分尺度上地衣形成真菌和林木栖息基枝真菌的多样性,从而解决了这一问题。将空中 eDNA 采样与基于目测的调查相结合,能更好地捕捉到真菌多样性的全部内容,包括隐蔽物种和具有特殊保护意义的物种。直接从木材或土壤中采集 eDNA 样本可能会更好地捕获某些在空气样本中代表性不足的真菌群,但至少在局部范围内,目测调查应被视为一种更具成本效益的补充方法。他们的研究结果强调了在生物多样性评估中同时使用多种方法的重要性,以及研究和监测真菌多样性的标准化方法的必要性。
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引用次数: 0
Organic farming and annual flower strips reduce parasite prevalence in honeybees and boost colony growth in agricultural landscapes 有机耕作和一年生花卉带可降低蜜蜂寄生虫的流行率,促进农业景观中蜂群的生长
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-20 DOI: 10.1111/1365-2664.14723
Patrycja Pluta, Kathrin Czechofsky, Annika Hass, Lena Frank, Ansgar Westerhoff, Heiner Klingenberg, Panagiotis Theodorou, Catrin Westphal, Robert J. Paxton

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引用次数: 0
Taxon-specific response of natural enemies to different flower strip mixtures 天敌对不同花带混合物的分类群特异性反应
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-18 DOI: 10.1111/1365-2664.14761
Simon Blümel, Lukas Beule, Nicolai Bissantz, Wolfgang H. Kirchner, Verena Haberlah-Korr

花卉带是一项重要的农业环境计划,其核心目标是促进生物多样性和维护相关的生态系统服务。通过花带增加资源可用性来促进天敌是一种很有前景的害虫综合治理方法。在一项为期三年的实地研究中,在德国三个不同的研究地点测试了两种一年生和两种多年生花带混合物以及一种草混合物对天敌的吸引力。我们使用扫网和坑式诱捕器对天敌进行了九轮采样,每年采样一次,采样周期为 10 天。为了评估可用的花卉资源,我们估算了特定物种的花卉覆盖率,并将物种划分为不同的花卉类型。花带混合物对天敌的吸引力各不相同。处理对节肢动物活动密度的影响在第二年和第三年最为明显。总体而言,对大多数天敌而言,多年生花带混合物比一年生花带混合物更具吸引力,但不同分类群对花带混合物的反应差异很大。例如,与一年生花带相比,多年生花带的植栖蜘蛛和寄生蜂活动密度增加了两到四倍,捕食蝽和啮小蠹的幼虫数量也增加了。相比之下,一年生花带混合物对地甲虫的吸引力最大。此外,不同的天敌类群与不同的花带特征有关,如花的类型比例、食草动物的可用性和植物物种的丰富度。综述与应用。我们发现了天敌分类群对不同花带的特异性反应,这为花带的花卉组成提供了指导,以最大限度地发挥其自然控制害虫的效果。我们建议使用头花(菊科)和圆盘花(尤其是繖形花科、茜草科、十字花科)比例较高的多年生混合物,但也可使用旗花(豆科),因为这些花卉类型与多个天敌类群呈正相关。不过,由于我们发现对花卉类型的反应不一,具体的花带组成最终将取决于其目标。
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引用次数: 0
Cost-effective portfolio allocation across quarantine, surveillance and eradication using info-gap theory 利用信息差距理论,在检疫、监测和根除工作中进行具有成本效益的投资组合分配
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-17 DOI: 10.1111/1365-2664.14762
Yang Liu, Penghao Wang, Grey T. Coupland, Melissa L. Thomas, Dan Zheng, Simon J. McKirdy

生物安保活动主要包括边境前和边境检疫、边境后监测和边境后根除。分配给检疫和监控活动的预算最终会影响根除活动的支出和成功率。以往研究中的最佳投资组合分配容易受到生态学和入侵物种行为本身潜在的严重不确定性的影响。这些不确定性加上有限的预算,使得决策者难以将管理预算总额稳健地分配给每项生物安全活动。信息差距决策理论被用来模拟入侵物种管理中的严重不确定性,并稳健地优化总管理成本。这项研究表明,将边境前检疫和边境检疫(降低入侵概率)与边境后监测(实现早期检测和快速反应)相结合,可使决策者更稳健地应对潜在的不确定性。此外,据报告,根据预防原则,成本效益更高的检疫投资应超过监测投资。提高监测检测的估计人口阈值也能提高稳健性。综述与应用:本研究中提出的组合分配方案为决策者提供了一种方法,通过稳健地分配管理预算总额,在空间上、成本效益上和信心上管理入侵物种。本研究概述的方法不仅可以应用于入侵物种,还可以应用于濒危物种的保护,因为濒危物种的保护受到生态建模的严重不确定性和有限资源的限制。
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引用次数: 0
Drivers of snag fall rates in Fennoscandian boreal forests 芬诺斯坎德北方森林中雪撬脱落率的驱动因素
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-17 DOI: 10.1111/1365-2664.14729
Tuomas Aakala, Ken Olaf Storaunet, Bengt Gunnar Jonsson, Kari T. Korhonen

立木枯死的持续性是决定其对生物多样性和枯木相关碳通量作用的重要因素。不同树种和地区的枯木倒伏速度差异很大,而且还受到各种林地和树木层面因素的影响。然而,我们对这种变化的了解充其量只是零散的,部分原因是缺乏经验数据。在此,我们利用了芬兰、挪威和瑞典国家森林资源清查项目自 20 世纪 90 年代中期以来积累的钉耙观测时间序列。我们首先统一了来自略有不同的清查协议的观测数据,然后利用这一统一的数据集(约有 43,000 个观测数据,普查时间间隔为 5 年),使用贝叶斯逻辑回归建模法,将北方主要树种欧洲赤松(Pinus sylvestris)、黑松(Picea abies)和桦树(Betula spp.这些模型在预测木栓屹立或倒塌方面表现一般,不同树种的正确分类率从 68% 到 75% 不等。一般来说,木渣的持久性随树木大小和气候湿度的增加而增加,随温度总和、衰变阶段的提前、地点生产力和干扰强度(主要是采伐)的增加而减少。综述与应用:采伐的影响表明,在造林作业中保护翘柏是增加受管理森林翘柏数量的有效途径。在气候变暖的未来,杉木梢的持续时间与温度之间的负相关关系表明,杉木梢的持续时间会缩短,从而降低相关物种的栖息地可用性。由于秋季过后分解率通常会增加,木耙持久性的降低也意味着枯木碳释放的速度大大加快。
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引用次数: 0
Incorporating density-dependent regulation into impact assessments for seabirds 将密度调节纳入海鸟影响评估
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-15 DOI: 10.1111/1365-2664.14750
Eve Merrall, Jonathan A. Green, Leonie A. Robinson, Adam Butler, Matt J. Wood, Mark A. Newell, Julie Black, Francis Daunt, Catharine Horswill

在新开发项目的审批过程中,许多行业都需要进行种群生存能力分析(PVA),以确定对受保护种群的潜在影响。然而,这些评估很少考虑密度对人口增长率的影响。在基于 PVA 的影响评估中排除密度依赖性调节通常被认为可提供影响的最大估计值,因此可提供一种预防性评估方法。然而,也有人担心这种做法可能会不必要地阻碍重要产业的发展,如近海可再生能源。在这项研究中,我们评估了 31 个海鸟种群的繁殖成功率与密度相关的调节。然后,我们使用八种不同的公式来量化这种调节的强度和形式。最后,我们使用 PVA 检验了每种公式如何影响观察到的动态再现(即模型验证),以及预测的种群对外部威胁的绝对和相对响应(即模型预测)。我们发现了海鸟繁殖成功率的负调控(n = 3)和正调控(n = 5)证据。在表现出负向调节的种群中,基于 PVA 的影响评估排除了密度依赖性调节,导致种群增长失控,模型结果在生物学上变得不可信。相比之下,在表现出正向调节的种群中,剔除密度依赖性调节可以适当重建观察到的动态变化,但在某些种群中,种群数量的下降被低估了。我们发现,密度依赖性的多种表述在分析的检测、验证和预测阶段表现相当。不过,我们初步建议在影响评估中使用对数线性分布或 Weibull 分布来描述海鸟繁殖成功率的密度依赖性调节,以便在准确性与谨慎性之间取得平衡。最后,我们表明,影响评估的相对 PVA 指标并不一定能用于克服 PVA 的错误规范,因为在正向调节的种群中,假设密度是独立的。综述与应用:我们建议,在对海鸟种群进行基于 PVA 的评估时,采用与密度相关的方法可防止不符合生物学实际的、无约束的种群增长,从而确保在经历负面调控的种群中采用有意义的 PVA 指标。它还能为正向调节的种群保持一种预防性方法,这在估计对这些更脆弱种群的影响时至关重要。这些结论可立即应用于海洋工业的同意程序中。
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引用次数: 0
Sounds of the underground reflect soil biodiversity dynamics across a grassy woodland restoration chronosequence 地下的声音反映了草地林地恢复年序中土壤生物多样性的动态变化
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-15 DOI: 10.1111/1365-2664.14738
Jake M. Robinson, Alex Taylor, Nicole Fickling, Xin Sun, Martin F. Breed

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引用次数: 0
A technological biodiversity monitoring toolkit for biocredits 生物信用的生物多样性技术监测工具包
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-14 DOI: 10.1111/1365-2664.14725
Helen V. Ford, Franziska Schrodt, Alexandra Zieritz, Daniel A. Exton, Geertje van der Heijden, Jonathan Teague, Tim Coles, Richard Field

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引用次数: 0
Ecology and conservation under ageing and declining human populations 老龄化和人口减少情况下的生态与保护
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-13 DOI: 10.1111/1365-2664.14758
Lorenzo Marini, Péter Batáry, Rachel Carmenta, Kevin J. Gaston, Rowena Gordon, Cate Macinnis-Ng, Akira S. Mori, Martin Nuñez, Jos Barlow

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引用次数: 0
Cattle and nurse trees shape subtropical forest–grassland ecotones 牛和哺育树塑造了亚热带森林-草原生态区
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-12 DOI: 10.1111/1365-2664.14753
Milena Holmgren, Edwin Bargeman, Rafael Bernardi, Alice Blok, Jasper Buijs, Ivan Raniero Hernández-Salmerón, Rocío Martínez-Cillero, Nestor Mazzeo, Bart Verdijck

南美洲的亚热带地貌以开阔草原和森林-草原交错地貌为主。森林通常局限于河流边缘,森林-草原生态带十分明显。了解维持森林-草原生态区的机制对于预测气候变化和干扰机制对这些生物群落的范围及其提供的生态系统服务的影响非常重要。我们采用实地调查和长期野外实验相结合的方法,探索了南美洲坎波斯地区乌拉圭中部河流森林和草地生态区树木覆盖面积扩大的原因。我们评估了树种传播和树苗建立限制的作用,并通过实验测试了牛、哺育树覆盖和草对森林-草地生态区森林和草地树种新陈代谢的影响。我们发现,森林的扩张取决于牛群和哺育树之间的相互作用。Vachellia caven 树成功地在草地上定植,并通过促进林木物种的种子积累和幼苗成活来促进森林斑块的形成。令人惊讶的是,草地覆盖对林木幼苗的早期成活率大多有积极影响。然而,牛限制了树苗的生长和存活,尤其是林木树种。这导致了树斑的核植被模式,最终限制了森林的扩展。综合与应用。在亚热带南美草原上,树木覆盖面积有可能扩大。与气候变化相关的牛群密度降低和降雨量增加可能会促进该地区的森林扩张。
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引用次数: 0
期刊
Journal of Applied Ecology
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