Results 11 to 20 of about 7,302 (122)
本文记录了一例患急性铜绿假单胞菌肺炎的长江江豚诊断、治疗和预后观察过程。病原学鉴定采用鲜血琼脂平板对该江豚鼻腔拭子,在37℃下进行细菌需氧、厌氧培养和分离,并对所分离的细菌种类进行细菌学鉴定,结合血常规和血生化的检测结果,判定病原为铜绿假单胞菌(Pseudomonasaeruginosa,PA)。依据病原菌的药敏试验结果对患病江豚进行治疗,预后良好。通过对整个过程的资料分析以及预后观察,得到如下提示:1)应做好饲养环境的消毒措施,防止江豚出现获得性PA感染;2)对江豚日常呼吸道和粪便中PA的检测 ...
张先锋, 赵庆中, 郭政
core
Pometia pinnata demonstrated life‐stage‐specific genetic responses to landscape features, with asymmetric gene flow patterns and population recovery following historical bottlenecks, revealing complex topographic and demographic influences on forest genetic structure.
Madhuparna Chatterjee +5 more
wiley +1 more source
“关键种”理论与福建南亚热带极度退化生态系统重建构想 [PDF]
从“关键种”理论入手 ,结合福建省南亚热带环境与植物资源的实际 ,以实现适宜的顶级群落为目的 ,探讨快速重建福建省南亚热带极度退化生态系统的模式 ,即先使用福建南亚热带当地榕属植物营造生态系统的“关键植物资源”使之能自我维持 ,然后以关键植物资源为构架 ,通过自然扩散和人工协助等综合手段 ,依靠生态系统的自组织 ,重建整个生态系统。同时 ,对运用“关键种”理论指导福建省南亚热带极度退化生态系统重建的几个瓶颈问题 ,以及开展南亚热带极度退化生态系统生态重建实践对“关键种 ...
朱小龙, 李振基, 裘丽
core
Abstract DNA barcode‐based species identification has become pivotal in biodiversity research. Current barcoding‐based deep learning methods have advantages in species identification but exhibit significant limitations. By using COI barcoding alone, previous studies were unable to fully capture species identification features. Prior methods showed that
Bin Ye +4 more
wiley +1 more source
Distribution, scale, and drivers of mass mortality events in Europe's freshwater bivalves
Abstract Mass mortality events (MMEs) are decimating populations and compromising key ecosystem functions around the globe. One taxon particularly vulnerable to MMEs is freshwater bivalve mollusks. This group has important ecosystem engineering capacities and includes highly threatened and highly invasive taxa.
Daniel A. Cossey +39 more
wiley +1 more source
Representation of obligate groundwater‐dwelling copepod diversity in European protected areas
Abstract Groundwaters sustain diverse surface ecosystems and are populated by metazoan species, mostly invertebrates, that provide fundamental ecological functions and are often of prominent conservation value due to narrow endemism and high phylogenetic rarity.
Francesco Cerasoli +7 more
wiley +1 more source
Developing a conservation evidence-base for the Critically Endangered Hainan gibbon ('Nomascus hainanus') [PDF]
The Critically Endangered Hainan gibbon (Nomascus hainanus) is the world’s rarest ape, with a single population of an estimated 25 individuals surviving in approximately 15 km² of suboptimal forest within Bawangling National Nature Reserve, Hainan, China.
Bryant, JV
core
Abstract Human development is a driver of global change and a major threat to biodiversity. Protected areas maintain and support biodiversity, but outside stressors, such as climate change and land use change, can negatively influence natural resources within protected areas.
Leah J. Rudge +2 more
wiley +1 more source
鲤
为研究鲤Cyprinus carpio生物扰动作用对池塘底质甲烷生成的影响机制,通过室内模拟实验,测定了底质产甲烷潜力、产甲烷菌生物群落组成及产甲烷菌群间的互作效应。结果显示,与对照组相比,鲤扰动组底质产甲烷潜力显著降低,鲤的生物扰动作用促使底质总细菌和总古菌丰度显著升高,而产甲烷功能基因mcrA的丰度显著降低。养殖池塘底质产甲烷功能菌优势菌群主要为Methanobacterium、Methanothrix、Methanoregula和Methanocella ...
刘 洪达 +8 more
doaj +1 more source
Biodiversity‐driven spatial conservation planning to delineate temporally stable regions
Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella +5 more
wiley +1 more source

