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The golden threat—Solidago invasion alters native plant–pollinator interactions by vegetative crowding 金色威胁-一枝黄花的入侵通过植物拥挤改变了本地植物与传粉者的相互作用
IF 5.6 1区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-11-10 DOI: 10.1111/1365-2745.70194
Marie Charlotte Grange, François Munoz, Marco Moretti, Sylvain Varona-Y-Varona, Julien Renaud, Marie-Pascale Colace, Maya Guéguen, Axel Ssymank, Laure Gallien

利益冲突声明所有作者均无利益冲突。
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引用次数: 0
Intra-annual growth dynamics of forest understorey herbaceous plant species in response to global change 响应全球变化的林下草本植物年内生长动态
IF 5.6 1区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-11-10 DOI: 10.1111/1365-2745.70190
Eline Lorer, Pieter De Frenne, Kris Verheyen, Dries Landuyt

利益冲突声明作者声明无利益冲突。
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引用次数: 0
Earlier snowmelt increases the strength of the carbon sink in montane meadows unequally across the growing season 在整个生长季节,较早的融雪增加了山地草甸碳汇的强度
IF 5.6 1区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-11-06 DOI: 10.1111/1365-2745.70195
Olivia K. Vought, Stephanie N. Kivlin, Hannah B. Shulman, Patrick O. Sorensen, David W. Inouye, Inés Ibáñez, Peter Falb, Karin Rand, Aimée T. Classen

变暖的气温正在改变冬季,导致融雪提前。这种转变可能导致生长季节提前和可能延长,从而可能影响植物介导的各种生态系统功能。尽管它与碳循环有关,但我们仍然对早期融雪如何影响生长季节生态系统中的碳平衡知之甚少,例如,它是否只改变物候,或者它是否影响整体碳吸收?大多数研究依赖于融雪时间的年际变化,这使得很难将融雪效应与其他混杂变量(例如温度和湿度异常)分离开来。为了解决这一不确定性,我们研究了在实验中推进融雪如何影响整个生长季节山地草甸的碳循环。我们通过实验将高山草甸的融雪日期提前了约12天,并在整个生长季节每2周收集一次数据,包括净生态系统交换(NEE)、总初级生产力(GPP)、生态系统呼吸(ER)、植物组成、灌木、禾本科和草本生物量。在生长季早期,早期融雪样地的GPP较高,但随着生长季的推进,这种效应逐渐减弱。我们的累积NEE模型显示,随着融雪时间的提前,碳汇强度可能增加22%。这种效应在早春最强,随着生长季节的进展而减弱,对照样地在晚些时候碳汇更大。融雪时间较早的样地禾本科生物量高47%,但总生物量没有变化。合成。随着冬季变暖和融雪发生的提前,植物生产力将在生长季节提前转移,山地草甸可能成为更强的碳汇。然而,这种影响会随季节而变化,从而改变山地草甸的碳平衡。
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引用次数: 0
Context dependency of tree diversity effects on standardized substrates decomposition: Role of tree functional composition, mycorrhizal type and climatic conditions 树木多样性对标准化基质分解的环境依赖性:树木功能组成、菌根类型和气候条件的作用
IF 5.6 1区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-11-06 DOI: 10.1111/1365-2745.70189
Audrey Bourdin, Laurent Augusto, François-Xavier Joly, Cécile Bres, Tony Chahine, Joannès Guillemot, Peter Hajek, Hervé Jactel, Joel Jensen, Simone Mereu, Bart Muys, Quentin Ponette, Hans Sandén, William C. Parker, Alain Paquette, Christian Messier, Agnès Robin, Michael Scherer-Lorenzen, Hernán Serrano-León, Martin Weih, Bastien Castagneyrol, Mark R. Bakker, Nicolas Fanin

树木多样性既通过改变凋落物质量和组成直接影响凋落物分解,也通过改变局部分解环境间接影响凋落物分解。然而,与直接影响相比,LDE在影响凋落物分解速率方面的作用尚未得到充分探讨。在一年的时间里,我们在欧洲和北美进行了七个树木多样性实验,利用纤维素和木材基质进行了标准化的分解实验,以探索树木多样性如何通过其对LDE的影响来影响分解速率。树木功能多样性提高了优质基质(纤维素)的分解速率,但对劣质基质(木材)的分解速率没有影响。LDE的影响与环境有关,在有利的气候条件下,如中等温度和高降水,分解率最高。与通常认为阔叶和丛枝(AM)为主的林分凋落物分解速度更快的假设相反,我们的研究结果表明,在含有针叶树和外生菌根(EM)相关的树木的混合物中,凋落物分解速度更快,这表明LDE的作用比最初认为的要大。合成。这项研究强调了LDE在形成分解速率方面的关键作用。虽然在有利的气候条件下,树木功能多样性通常会促进分解,但在EM林分中,LDE的作用比之前认识到的更为显著,这表明AM林分中更快的分解速率主要是由于凋落物质量。这些发现强调了分解的环境依赖性,以及在理解树木多样性如何影响分解过程中考虑LDE的重要性。
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引用次数: 0
Unveiling the role of foliar fungi in mediating leaf photosynthesis under global change 揭示全球变化下叶面真菌在调节叶片光合作用中的作用
IF 5.6 1区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-11-04 DOI: 10.1111/1365-2745.70192
Yicheng He, Bing Han, Yiyi Geng, Lina Shi, Cuoji Peng, Lihui Duan, Xinqing Shao

利益冲突声明作者声明,他们没有已知的竞争经济利益或个人关系,可能会影响本文所报道的工作。
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引用次数: 0
Effects of two key plant trait spectra on litter layer properties and habitat provision functions 两个关键植物性状谱对凋落物层性质和生境供给功能的影响
IF 5.6 1区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-11-03 DOI: 10.1111/1365-2745.70187
Saori Fujii, Matty P. Berg, Richard S. P. van Logtestijn, Shun’ichi Makino, Johannes H. C. Cornelissen

植物凋落物含有多种生物,如土壤动物、微生物、维管植物种子和幼苗、苔藓和地衣。虽然凋落物通过其与植物资源经济谱(PES)相关的性状驱动碳和养分循环,但其对预测凋落物生物群落的解释力非常低。在这个生物多样性变化的时代,凋落物栖息地供给功能应该得到更多的研究关注。提出了一个由凋落物大小和形状谱相关的物理性状轴(SSS)和生化性状轴(PES)定义的概念性状空间,以解释土壤生物的生境和营养功能。我们的目标是通过测试这一概念,并通过将与单个凋落物颗粒大小和形状相关的基本特征与与栖息地质量(例如湿度状况、栖息地空间)更直接相关的凋落物层特性联系起来,提高凋落物特征对凋落物居住动物群落的解释力。以16种木本植物为研究对象,研究了不同性状或性状轴对土壤动物生境质量直接相关的凋落物和凋落物层性质的影响。此外,我们还通过中生态凋落物层的田间试验评估了这一新的性状框架如何解释土壤无脊椎动物群落。在主成分分析中,两种植物性状谱合计占凋落物质量方差的60%。SSS相关性状可以很好地解释凋落物层生境相关性状,如持水量和凋落物容重。SSS轴和这些与SSS相关的特性在7周的田间试验中更强烈地决定了土壤动物群落的聚集,超过了PES轴的影响。合成。本研究首次提供了由广泛的植物物种所占据的SSS和PES光谱所定义的凋落物性状空间的经验证据,并利用它来解释凋落物层与自然环境和相关栖息地供给功能相关的特性。我们认为,这种基于特征的SSS - PES框架将帮助我们理清地上植被和地下群落之间真实世界相互作用的机制。
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引用次数: 0
The covariation between soil microbial communities and multidimensional fine-root economics space 土壤微生物群落与多维细根经济空间的协同变异
IF 5.6 1区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-10-30 DOI: 10.1111/1365-2745.70186
Tonghui Wu, Lijuan Sun, Yuxin Li, Qiufang Zhang, Xinyao Yang, Biao Zhu

细根性状在包括碳和氮循环在内的各种生态系统过程中起着重要作用,从而关系到土壤微生物群落的结构和功能。细根经济空间(RES)代表植物生长策略,沿多维轴显示“保护”和“协作”梯度。基于植物生长策略与土壤微生物群落生命策略相关的理论,我们假设土壤微生物群落的生物量、结构和多样性与多维res相关。我们测量了中国西南热带普通园林15种树种的根系分泌物和其他化学和形态细根特征。我们使用磷脂脂肪酸分析和高通量扩增子测序来估计土壤中真菌与细菌的比例和细菌群落的多样性。细根性状的差异解释了15种树种土壤微生物群落差异的28%。主成分分析的变大旋转暗淡1和暗淡2分别反映了多维RES的“守恒”和“协作”轴。“保守”轴与真菌-细菌比和细菌香农指数呈负相关。“协作”轴与微生物指数没有相关性。然而,在解释树种间微生物群落差异方面,根直径是第二个相对重要的性状。根渗出速率在“保护”轴的根氮浓度侧(负荷= 0.32)和“协同”轴的根比长侧(负荷= 0.33)上具有相似的负荷。与细菌OTU丰富度和Chao1指数呈负相关,与微生物生物量无相关性。合成。我们的研究强调了快速生长物种的根与细菌主导的土壤微生物群落有关,表现出快速生长的策略。协同轴性状和根系分泌物性状也与土壤微生物群落存在耦合关系,但它们在多功能RES内的关系较为复杂。耦合的多维RES和土壤微生物群落提高了我们对植物与土壤整合的认识。
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引用次数: 0
Changes in plant traits and productivity of two functional types across a soil water content gradient in a tropical dry forest 热带干旱林两种功能类型植物性状和生产力在土壤含水量梯度上的变化
IF 5.6 1区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-10-24 DOI: 10.1111/1365-2745.70177
Ravi Kant Chaturvedi, Kyle W. Tomlinson, Santosh Kumar Pandey, Anshuman Tripathi, Akhilesh Singh Raghubanshi, Jamuna S. Singh

水利用策略的具体差异可能会严重改变季风气候下植物群落的结构和生产力。了解不同土壤含水量梯度下植物功能性状的变化及其对群落生产力的贡献,有助于了解植物群落应对水分胁迫的能力,预测气候变率下的群落变化。研究了45个沿SWC梯度分布的50 km范围内的热带干旱林,了解了所有胸径≥10 cm乔木群落加权特征均值和范围的立地水平变化。根据叶片水力特性(等水与各向异性),将植物分为两种功能类型,代表不同的水分利用策略,即抗旱型和抗旱型。我们比较了水安全性状、叶片碳捕获性状和冠层程度在不同功能群SWC梯度上的变化。我们还测量了两组在5年的SWC梯度期间的立地水平茎数和生长率,我们将其与SWC和功能组性状的平均值和范围联系起来,这些平均值和范围是在5年内每年进行的测量中计算出来的。在不同功能类型的SWC梯度上,性状均值的变化存在显著差异,尤其是水分安全和叶片碳捕获性状,在SWC干端差异较大。在干旱地区,耐旱植物的木材和叶片密度增加,碳捕获能力降低。相反,干旱回避者对干旱地点的叶片水平碳捕获能力增加。在干旱地区,抗旱植物的茎数和地上生物量更高,而在湿润地区,抗旱植物的生物量在SWC梯度上呈非线性增加。合成。我们发现群落生物量的非线性变化似乎与性状决定的耐旱性限制有关。我们在一个小的空间尺度上观察到这些模式,表明景观土壤变异在很大程度上改变了抗旱和抗旱之间的平衡。这些模式进一步表明,未来气候变化将改变耐旱性和抗旱性植物的空间分布。
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引用次数: 0
Experimental resource supplementation shifts ant-mediated defence on silver cholla 实验性资源补充改变了蚂蚁介导的对银藻的防御
IF 5.6 1区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-10-22 DOI: 10.1111/1365-2745.70178
Jenna Braun, Christopher J. Lortie

花外蜜腺(EFN)经常在植物和蚂蚁之间调解兼性相互关系。蚂蚁从植物中获得营养丰富的食物来源,以保护植物免受食草动物的侵害。蚂蚁物种在作为植物保护者和竞争互惠合作伙伴资源方面的有效性不同。蚂蚁物种之间相互提供资源的分配对蚂蚁共存和植物适应性都具有重要意义。植物对防御性状的投资如何转化为伙伴身份,从而转化为防御质量,是兼性互惠关系中的一个基本问题,因为植物不能将访问限制在最有效的互惠主义者身上。我们在莫哈韦沙漠进行了一项人工补充花蜜的实验,实验对象是具有EFN的仙人掌品种银丘拉(圆柱体),在两个春季生长季节重复进行。我们测量了蚂蚁群落对补充和天然EFN资源的反应,并评估了蚂蚁防御食草动物和植物适应性的有效性。自然资源和实验资源的可用性影响了与银藻相关的蚂蚁的丰度和身份。实验增加糖资源破坏了蚁种之间现有的资源分配。在研究期间,仙人掌核在未补充的银葵上的丰度增加,而在资源补充的植物上则没有增加。最重要的共生物种是Crematogaster depilis,至少在早春期间,因为该物种与较低的食草动物丰度和较高的结实率相关。这一趋势表明,植物提供的EFN资源的增加直接转化为共生体提供的服务的增加。综上所述,积极投资于EFN对银蟹有利,但投资回报受互惠者之间竞争等级的调节。合成。蚁种间EFN资源的分配影响了银藻的c值及其后续适应度效应。
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引用次数: 0
Temperature and precipitation explain species-specific phenological patterns in five native California milkweed species (Asclepias spp.) 温度和降水解释了五种加州乳草(Asclepias spp.)特有的物候模式。
IF 5.6 1区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-10-22 DOI: 10.1111/1365-2745.70185
Dylan J. MacArthur-Waltz, Dylan S. Sommer, Prabhjot Singh, Louie H. Yang

了解物候策略可能会因为生物体使用多种线索、线索对物候期的变化效应和局部适应而变得复杂。研究了春季温度和年降水量对美国西部五种乳草物候变化的影响。我们将参与科学马利筋观测结果分为萌芽期、开花期和开花后物候期,并将观测结果与特定年份和特定地点的气候条件相匹配。我们将气候对物候学的影响分为不同地点的变化和不同年份的变化,以寻找物候学局部适应的证据。温暖的春季平均气温通常会促进物候,而湿润的降雨年通常会推迟物候。在所有马利筋物种中,春季平均温度×春季温度°C−1(平均±SD)使物候期提前2.56±1.71天,降水× cm降水−1使物候期延迟0.12±0.079天。我们发现在物候学中,15种x物候组合中有3种对温度有适应,15种x物候组合中有4种对降水有适应。在温度和降水方面,所有显著的局部适应都反映了反梯度的局部适应(在整个范围内增加物候同步性)。合成。将利用观测数据集研究物候的分析方法与参与性科学来源的广泛观测数据相结合,提供了一个令人兴奋的可能性,可以快速产生关于生物物候如何对全球变化下的新线索组合作出反应的假设,以及这些反应如何基于物种特征而有所不同。
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引用次数: 0
期刊
Journal of Ecology
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