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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
Land use history and landscape forest cover determine tropical forest recovery 土地使用历史和景观森林覆盖率决定热带森林的恢复
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-12 DOI: 10.1111/1365-2664.14754
Iris Hordijk, Lourens Poorter, Jorge A. Meave, Frans Bongers, Masha T. van der Sande, Rey David López Mendoza, Pascual Jamangapé Romero, Johan de Jong, Miguel Martínez-Ramos

为了保护生物多样性和应对气候变化,恢复森林生态系统至关重要。自然森林再生长是一种基于自然的森林恢复方案,但很少有人评估过自然森林再生长如何受到以前土地使用强度和周围森林覆盖率的综合影响,以及在两种主要热带森林类型(干燥森林和湿润森林)之间的差异。研究人员在墨西哥热带雨林干旱地区(13 块)和湿润地区(20 块)的废弃农田上建立了 33 个地块,对以下树木群落属性进行了为期 3 年的监测:结构、多样性、再生模式、与固氮菌和菌根真菌的潜在共生关系。通过访谈对以前的土地利用强度进行了描述,并利用卫星图像对地块周围 1000 米半径范围内的景观森林覆盖率和破碎度进行了量化。变量重要性分析表明,对于 3 年后树木群落属性的状态而言,土地利用强度比森林覆盖率和破碎度更重要。这表明,以前的土地利用影响了演替的开始,并给植被留下了重要的遗产。土地利用强度、森林覆盖率和破碎度对树木群落属性随时间的变化具有同等重要的决定作用,这表明管理措施和散布都会影响群落的组合。较高的土地利用强度会降低树木丰富度的恢复,而最大森林斑块的面积会降低树木密度,这些斑块的连通性会增加树木密度。与湿润森林相比,干燥森林的树木密度恢复速度更快,这得益于较高的初始重新萌发能力和非生物分散的树木。综述与应用:较高的土地利用强度和破碎化的森林景观都会降低森林恢复的速度,这表明人类行为和景观改造影响着演替的进程。在以前土地利用强度较低、森林连通性较高和物种非生物分散的地区,通过自然再生恢复破碎的森林景观更为合适。因此,有效的恢复应同时考虑土地使用历史和景观森林覆盖率,并适合当地的社会生态条件。
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引用次数: 0
Avian phylogenetic and functional diversity are better conserved by land-sparing than land-sharing farming in lowland tropical forests 在低地热带森林中,疏地耕作比分地耕作更能保护鸟类的系统发育和功能多样性
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-08 DOI: 10.1111/1365-2664.14755
Giovanny Pérez, Simon C. Mills, Jacob B. Socolar, Diego E. Martínez-Revelo, Torbjørn Haugaasen, James J. Gilroy, David P. Edwards

为耕作而改变自然栖息地是热带生物多样性丧失的主要驱动因素。为减轻影响,人们提倡两种替代方法:加强农业生产以抵消保护区的影响(节省土地),或在农田内整合野生动物友好栖息地(共享土地)。在高山和干旱热带地区,系统发育和功能多样性是进化价值以及提供生态系统功能和服务的基础,最好通过土地共享来加以保护。我们以哥伦比亚亚马逊地区的养牛业为重点,调查了森林和牧场之间跨越野生动物友好特征梯度的 280 种鸟类的栖息地如何变化。然后,我们模拟了分地耕作和分地耕作的情景,以预测对系统发育和功能多样性指标的影响。然而,群落组合却有很大差异。对于大多数依赖森林的物种来说,野生动物友好型牧场是不够的,而系统发育和功能多样性指数在野生动物友好型特征梯度上的变化极小。与土地共享相比,土地共享始终保留了更高水平的费斯系统发育多样性(约30%)、功能丰富性(约20%)和进化上独特的系谱(约40%),而且在不同的景观规模上都是如此。在保护整个群落的系统发育和功能多样性方面,通过土地共享实践确保森林保护仍然优于土地共享:为了最大限度地减少亚马逊地区农耕造成的鸟类系统发育多样性和功能特征的损失,必须保护大片未受干扰的再生森林。在满足农业需求的同时,需要在现有农田内进行集约化耕作,以腾出空间,避免对土壤质量和其他生态系统服务造成长期负面影响,这种集约化耕作必须是可持续的。政策需要确保同时实施这两项行动。
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引用次数: 0
Resource limitation of compensatory responses in ecosystem processes after biodiversity loss 生物多样性丧失后生态系统过程补偿反应的资源限制
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-07 DOI: 10.1111/1365-2664.14756
J. G. Hiddink, T. W. Davies

生物多样性的丧失可能导致重要生态系统过程的衰退。生物多样性丧失对生态系统功能的影响取决于丧失物种的功能贡献和其余物种的补偿反应。其余物种的补偿反应强度在多大程度上取决于资源的可用性,目前尚不清楚。在此,我们评估了在一个为期 7 年的实验中,在施肥和不施肥的情况下,盐沼植物群的初级生产如何对物种损失的现实序列做出反应。我们发现,只要有一个物种(Triglochin maritima)保留下来,在施肥的情况下,抗灭绝物种对群落初级生产总量中逐渐减少的物种几乎可以完全补偿。在不施肥的情况下,至少需要四个物种(包括特别丰富的物种车前子)才能维持群落初级生产总量。这些结果表明,抗灭绝物种对与生物多样性逐渐丧失相关的生态系统过程衰退的补偿程度取决于资源环境,植物物种丧失后的补偿可以通过增加资源可用性来加速。最终,完全补偿似乎受限于剩余群落中物种的存在和丰富程度,这些物种具有能够补偿丧失物种的特性。综述与应用:这些发现表明,大量生物多样性-生态系统实验的结论不能用于指导自然系统的管理,因为它们没有模拟真实的物种灭绝序列,因此不能量化现实世界中生态系统服务补偿的潜力。
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引用次数: 0
Flight behaviour of Red Kites within their breeding area in relation to local weather variables: Conclusions with regard to wind turbine collision mitigation 红鸢在其繁殖区内的飞行行为与当地天气变量的关系:关于减少风力涡轮机碰撞的结论
IF 5.7 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-05 DOI: 10.1111/1365-2664.14739
Janine Aschwanden, Herbert Stark, Felix Liechti
Birds and bats are prone to collisions with wind turbines. To reduce the number of bat collisions, weather variables are commonly used to shut down wind turbines when a certain constellation of weather variables occurs. Such a general approach might also be interesting to mitigate raptor collisions. Studies on the relationship between flight behaviour and weather variables are needed. To investigate the flight behaviour of raptors within their breeding area in relation to local weather variables, we used high resolution data of flight tracks of Red Kites collected on a wind energy test site (Germany). Birds were tracked with a laser range finder (LRF) or with Global Positioning System (GPS) transmitters. Weather variables were continuously registered on site. We used generalised linear mixed models to analyse the influence of weather variables and of the measurement method on different flight parameters. Furthermore, we investigated the probability of flying within a virtual rotor height range defined by three hub heights (84, 94 and 140 m; diameter: 112 m). The median flight altitude measured by LRF (52.5 m, 95% CI: 44.9–61.0, N = 2511) was on average 25 m higher than the corrected one resulting from GPS (27.8 m, 95% CI: 24.7–31.2, N = 6792). Flight speed also differed between methods (GPS: 29.2 km/h, 95% CI: 28.2–30.3 km/h; LRF: 25.1 km/h, 95% CI: 24.0–26.3 km/h). The effects of the weather variables were weak. Birds tended to fly less and lower during wet (humid, rainy or foggy) than dry weather, and lower during strong than weak winds. Probabilities of flying within a height range of virtual rotors increased with decreasing hub height, and hence ground clearance. Synthesis and applications: Flight behaviour was highly variable. Flights occurred during all weather conditions at different altitudes throughout the day over the entire season. Further research into the relationship between flight behaviour, weather variables, collisions and other factors is needed as a basis for developing shutdown regimes generally suitable for raptors. The mean flight altitude and speed differed between the measurement methods. Any values resulting from studies should be interpreted in the context of the method.
鸟类和蝙蝠很容易与风力涡轮机发生碰撞。为了减少蝙蝠碰撞的次数,通常会使用天气变量,在出现某种天气变量时关闭风力涡轮机。这种通用方法对减少猛禽碰撞也很有意义。需要对飞行行为与天气变量之间的关系进行研究。为了研究猛禽在其繁殖区内的飞行行为与当地天气变量之间的关系,我们使用了在风能试验场(德国)收集到的红鸢飞行轨迹的高分辨率数据。使用激光测距仪(LRF)或全球定位系统(GPS)发射器对鸟类进行跟踪。现场连续记录了天气变量。我们使用广义线性混合模型来分析天气变量和测量方法对不同飞行参数的影响。此外,我们还研究了在由三个轮毂高度(84、94 和 140 米;直径:112 米)定义的虚拟旋翼高度范围内飞行的概率。LRF 测得的飞行高度中值(52.5 米,95% CI:44.9-61.0,N = 2511)比 GPS 修正值(27.8 米,95% CI:24.7-31.2,N = 6792)平均高出 25 米。不同方法的飞行速度也存在差异(GPS:29.2 km/h,95% CI:28.2-30.3 km/h;LRF:25.1 km/h,95% CI:24.0-26.3 km/h)。天气变量的影响较弱。在潮湿(潮湿、多雨或多雾)天气中,鸟类的飞行次数和飞行高度往往低于干燥天气;在强风天气中,鸟类的飞行次数和飞行高度往往低于弱风天气。在虚拟旋翼高度范围内飞行的概率随着轮毂高度的降低而增加,因此离地间隙也随之降低。综合与应用:飞行行为变化很大。在整个飞行季节的所有天气条件下,全天都有不同高度的飞行。需要进一步研究飞行行为、天气变量、碰撞和其他因素之间的关系,以此为基础制定普遍适用于猛禽的停机制度。不同测量方法得出的平均飞行高度和速度是不同的。研究得出的任何数值都应根据测量方法进行解释。
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引用次数: 0
Thin lines between native and invasive aquatic plants are common, posing challenges for response efforts 本地水生植物和入侵水生植物之间的界限很模糊,这给应对工作带来了挑战
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-05 DOI: 10.1111/1365-2664.14752
Daniel J. Larkin

原生植物和入侵植物物种之间的分界线可能因亲缘关系很近而变得很窄,也可能因隐性入侵而变得模糊,或因杂交而被突破。过去的研究表明,这些现象在水生系统中尤为普遍。这可能是由于水生环境施加了强大的过滤器,放大了 "预适应 "的重要性--非本地物种由于共同的特征而在亲缘关系密切的本地物种出现的地方获得成功。如果是这样的话,水生植物入侵的预适应信号应该比陆生植物入侵的信号更强,从而对管理产生影响。我利用标本馆记录以及分类学和系统发生学分析,比较了美国中西部水生植物区系和陆生植物区系中入侵物种和本地物种的亲缘关系,从而检验水生植物入侵是否比陆生植物入侵具有更强的预适应影响。我预测水生物种将构成植物进化过程中的一个独特子集;从分类学和系统发生学角度看,水生入侵者与本地水生植物的亲缘关系要比陆生入侵者与本地水生植物的亲缘关系密切;来自中西部主要供体区(古北界)的水生入侵者与中西部物种的亲缘关系要比未入侵中西部的古北界水生植物的亲缘关系密切。研究结果表明,入侵水生植物与本地水生植物之间的细微界限反映了适应水生环境的进化传统。水生物种是植物进化过程中的一个独特子集,入侵水生植物与本地水生植物的亲缘关系(在分类学和系统发育上)比陆生入侵物种与陆生本地物种的亲缘关系更密切。此外,入侵中西部的古北水生植物与中西部本地植物的亲缘关系(在系统发育上,而不是在分类学上)比非入侵植物更密切,这加强了预适应的作用。综述与应用:将本地水生植物与入侵水生植物区分开来的细线给应对工作带来了挑战。对于资源管理者来说,隐性入侵的普遍存在需要专门的、强有力的监控方法。对于外联工作而言,由于本地与入侵之间的区别更加细微,因此需要采取细致的沟通和教育方法。当需要进行控制时,应谨慎实施,以尽量减少对近缘原生植物的非目标影响,但也要足够彻底,以防止原生植物因竞争和/或引种而被取代。
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引用次数: 0
Vegetation restoration in the coarse-textured soil area is more conducive to the accumulation of Fe-associated C 粗质土壤区域的植被恢复更有利于与铁相关的碳的积累。
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-02 DOI: 10.1111/1365-2664.14749
Lingbo Dong, Jiajia Li, Defu Wang, Su Wang, Weifang Hu, Jianzhao Wu, Yang Liao, Zhijing Yu, Xi Wang, Jinyuan Yu, Jiwei Li, Zhouping Shangguan, Lei Deng

植被恢复对土壤碳库动态有重要影响。高度稳定的铁(Fe)相关碳是土壤碳库的重要组成部分,在土壤碳循环中起着至关重要的作用。然而,植被恢复期间铁相关碳的变化仍然是一个知识空白。本文采集了耕地、草地、灌木林地和林地三种土壤类型(壤土、黄土和砂土)的 0-60 厘米土壤样本,以探讨植被恢复对铁相关碳的响应。结果表明,研究区土壤中铁相关碳的比例在 2.2% 至 26.3% 之间。植被恢复后,表层土壤(0-20 厘米)中黄土和沙土中的铁相关碳含量增加,但壤土中的铁相关碳含量减少。植被恢复期间,土壤中铁相关碳的积累效率在较粗的土壤中更高。此外,在各种土地利用类型中,土壤有机质(SOM)库较高的林地的铁螯合碳含量和比例最高。植被恢复以两种不同的方式影响土壤中的铁-相关碳:(1)增加土壤有机质和溶解有机碳,提高碳和铁的结合效率,促进铁-相关碳的积累;(2)降低土壤中铁的总含量,将三价铁(Fe(III))还原为二价铁(Fe(II)),破坏碳和铁的结合,降低土壤中铁-相关碳的含量,这两种不同的方式在三种土壤类型中均有发现。此外,粗粒土壤的 SOM 积累效率更高,植被恢复对根系的破坏更小,因此铁相关碳的积累效率更高。综述与应用。林地可能是提供土壤固碳效益的最佳植被类型,可有效增加土壤碳库并最大限度地提高铁相关碳含量。这项研究填补了植被恢复对土壤铁相关碳影响方面的知识空白,为更好地理解土壤碳循环和制定科学的植被恢复措施提供了科学依据。
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引用次数: 0
Human conflict, food security and impacts on wildlife: Importance of sustainable harvest models to inform policy 人类冲突、粮食安全和对野生动物的影响:可持续收获模式对制定政策的重要性
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-02 DOI: 10.1111/1365-2664.14747
Hedley S. Grantham

Research Highlight discussing: Carenton, N., Defos du Rau, P., Wachoum, A. S., Ducros, D., Suet, M., Deschamps, C., Betoloum, M. R., Birard, J., Djimasngar, M. B. N., Kayser, Y., Petersen, I. K., Dias, J., Wachoum, M. A., Portier, B., Koumbraït, A. M., Le Bel, S., & Mondain-Monval, J.-Y. (2024). Migration of humans fleeing conflict in the Lake Chad region may increase pressures on natural resources in Lake Fitri (Chad): A case study on waterbirds, Journal of Applied Ecology, 1–13, https://doi.org/10.1111/1365-2664.14700. Human conflict and food security have emerged as critical issues for humanity with potentially profound implications for biodiversity conservation. These interconnected challenges not only threaten human well-being and socio-economic stability but also have significant impacts on biodiversity, including biodiversity of conservation concern. The importance of wildlife for bushfood, particularly in regions affected by conflict, adds another layer of complexity. In such areas, reliance on wildlife for sustenance often increases, leading to overexploitation. Bushmeat serves as a crucial source of protein and livelihoods in many parts of the world particularly Africa, highlighting its significant role in local economies and food security. This dynamic not only threatens biodiversity but also exacerbates the challenges of food security and human conflict. Understanding the interplay between human conflict, food security and biodiversity conservation is essential for developing sustainable solutions that address these complex issues holistically. Modelling of wildlife exploitation has historically focussed on spatially explicit pressure maps showing how vulnerable species are to exploitation. New modelling is emerging to help better understand the specific impacts on species populations so that policymakers can help create better informed policies and strategies that balance human needs with conservation efforts.

研究亮点讨论:Carenton, N., Defos du Rau, P., Wachoum, A. S., Ducros, D., Suet, M., Deschamps, C., Betoloum, M. R., Birard, J., Djimasngar, M. B. N.., Kayser, Y., Petersen, I. K., Dias, J., Wachoum, M. A., Portier, B., Koumbraït、Kayser, Y., Petersen, I. K., Dias, J., Wachoum, M. A., Portier, B., Koumbraït, A. M., Le Bel, S., & Mondain-Monval, J.-Y. (2024).(2024).逃离乍得湖地区冲突的人类迁徙可能会增加菲特里湖(乍得)自然资源的压力:水鸟案例研究》,《应用生态学杂志》,1-13,https://doi.org/10.1111/1365-2664.14700。人类冲突和粮食安全已成为人类面临的关键问题,可能对生物多样性保护产生深远影响。这些相互关联的挑战不仅威胁人类福祉和社会经济稳定,而且对生物多样性,包括受保护的生物多样性产生重大影响。野生动物对丛林食品的重要性,尤其是在受冲突影响的地区,又增加了一层复杂性。在这些地区,对野生动物的依赖往往会增加,导致过度开发。在世界许多地区,尤其是非洲,野生动物肉类是蛋白质和生计的重要来源,凸显了其在当地经济和粮食安全中的重要作用。这种态势不仅威胁着生物多样性,还加剧了粮食安全和人类冲突的挑战。了解人类冲突、粮食安全和生物多样性保护之间的相互作用,对于制定全面解决这些复杂问题的可持续解决方案至关重要。野生动物开发建模历来侧重于空间压力图,显示物种在开发中的脆弱程度。新的建模正在出现,以帮助更好地了解对物种种群的具体影响,从而帮助决策者制定更明智的政策和战略,平衡人类需求与保护工作。
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引用次数: 0
Unveiling the role of forests in landslide occurrence, recurrence and recovery 揭示森林在山体滑坡发生、复发和恢复中的作用
IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Pub Date : 2024-08-02 DOI: 10.1111/1365-2664.14741
Ying Ki Law, Calvin K. F. Lee, Aland H. Y. Chan, Nelson P. L. Mak, Billy C. H. Hau, Jin Wu

雨水引发的山体滑坡会造成重大的社会经济损失和长期的生态影响,破坏表土和种子库,为植被的建立创造不利条件。尽管灾害管理能有效降低滑坡风险,但大多数管理计划主要关注社会影响(财产和生命损失),而与滑坡发生和复发相关的环境影响往往被忽视。由于传统实地研究方法在时间和空间上的限制,不同植被类型在减缓战略中的作用仍不确定。因此,应重新考虑植被在滑坡恢复中的作用。在这项研究中,我们调查了滑坡后植被恢复的模式,分析了植被恢复的持续时间,确定了影响这些模式的因素,研究了森林在发生和复发概率中的作用,并探讨了这些发现对滑坡恢复综合管理框架中各要素的影响。我们利用覆盖整个香港市(约 1100 平方公里)的长期山体滑坡清单数据(1924-2018 年),并结合 2020 年机载激光雷达扫描获得的结构数据来捕捉山体滑坡的恢复情况。我们的研究结果表明,疤痕主体和疤痕脚区域的恢复轨迹存在显著差异,前者需要约 46 年时间恢复,后者则需要约 38 年时间恢复。疤痕年龄、平均风速、海拔高度和距离森林的远近被认为是影响疤痕结构恢复的关键因素,而距离森林的远近也会影响疤痕的恢复速度。我们观察到森林覆盖地区的滑坡发生率有所下降,反复发生的滑坡主要出现在荒山坡上尚未恢复的老疤痕上。综述与应用:我们的研究强调了滑坡塌方疤痕植被恢复的动态模式、恢复时间和驱动因素;非森林地区发生滑坡的概率较高,光秃、植被较少的疤痕上的滑坡复发率较高。这些信息为滑坡易发区的恢复工作和管理提供了宝贵的信息。这些知识对于制定有效的缓解战略和提高脆弱生态系统面对气候变化和日益频繁的极端天气事件的恢复能力至关重要。
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引用次数: 0
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Journal of Applied Ecology
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