Results 31 to 40 of about 13,566 (164)
ABSTRACT Skin wound injuries are often accompanied by bacterial infections and severe inflammation. Especially, M1‐type macrophages at the wound site can trigger a cascade of inflammatory responses, mediating a vicious cycle of inflammation. Meanwhile, hypoxia further exacerbates vascular damage and constriction in the wound microenvironment, thereby ...
Xianfeng Wang +6 more
wiley +1 more source
Study on the microbial community structure, diversity and abundance in water-soil interface sediments on the watershed of three rivers [PDF]
为了探讨无机盐分、养分及有机质矿化作用对微生物群落结构、多样性和功能微生物丰度影响,河流水土界面微生物群落结构和碳、氮、硫循环功能微生物种群的演替规律,本论文以九龙江、闽江和瓯江三江流域作为研究区域,并增加温室培养实验,对其中水土界面沉积物样品中的理化参数、微生物群落、多样性和功能微生物丰度进行测定;采用基因文库构建技术、变性梯度凝胶电泳技术(DGGE)和illumina高通量测序技术分析了样品中微生物群落结构及活动规律;利用实时荧光定量PCR(RT-PCR)技术对功能微生物进行定量 ...
李虎
core
In this study we analyze the role of phylogeny, environment, and community structure on sociality. Using structural equation modeling (SEM) we aim to quantify the direct and indirect impacts of variables on behaviors including social grouping, reproduction, and space use among Carnivora species.
Jessica Ward +3 more
wiley +1 more source
ヘドロ ジバン ノ カンソウ ニ オヨボス ボクソウ ノ コウカ : ショクセイ ニヨル ヘドロ ジバン ノ カンソウ ニカンスル ケンキュウ [PDF]
【まえがき】裸地では表層部の乾燥は進行するが,深層部の乾燥はきわめて困難である.したがって,深層部の乾燥を促進するためには植生の水分吸収による方法などを考慮する必要がある.干拓地において,ヨシ純群落が成立するヘドロ地盤では水分環境の変化(地下水位の低下,土壌水分の減少など)によって,密なヨシの群落は漸次,疎のヨシ群落,混生群落へと推移する.混生群落の段階になると,ヨシによる吸水効果は密なヨシ群落に比較して僅少になるから,次のヘドロ地盤の乾燥促進の段階として,重粘多湿地に強い多年生牧草の導入が考えられる ...
神尾 彪
core +1 more source
Read the free Plain Language Summary for this article on the Journal blog. Abstract The nested subset pattern (nestedness) has been widely used to explain species distributions in island and fragmented systems. Mountain sky islands serve as critical natural laboratories for understanding the evolutionary consequences of geographic isolation and climate
Caiwen Zhang +5 more
wiley +1 more source
植被恢复是退化生态系统重建的重要途径,植被恢复过程中物种多样性的变化反映了植被的恢复程度,通过群落调查,研究了太行山片麻岩区植被恢复过程中群落物种多样性特征及其与土壤含水量之间的关系,结果表明:物种多样性指数天然灌木群落〉人工乔木群落。乔木和灌木群落各指数大小为封禁20年〉封禁10年〉封禁5年。6种群落其土壤含水量均偏低,随着封禁时间的加长,含水量略为增加,但天然灌木群落平均含水量稍大于人工群落。不同封禁时间群落土壤含水贯与均匀度指数成正相关,多样性指数与含水量先呈正相关,在封禁20年时,呈负相关 ...
徐学华 +4 more
doaj
Study on intertidal cirripod community structure in Beiji archipelago(北麂列岛潮间带蔓足类群落结构研究)
对北麂列岛潮间带蔓足类群落结构的研究表明,该列岛蔓足类群落属外海高盐类型,群落结构简单.用Shannon-Wiever多样性指数H′(s)、Pielou均匀度J、Margalef种类丰度d及McNaughton优势度D 4个测定群落种类多样性指标进行数值分析,结果表明,从北到南,H′(s)、J、d值呈现逐渐增加的趋势,而D值则有逐渐减少的趋势.各断面的多样性指数H′(s)及种类均匀度J值以春、夏季较高,d值夏、秋季较高,D值则随断面的不同而差异.
YINGXue-ping(应雪萍) +2 more
doaj +1 more source
Effects of landscape fragmentation on floodplain fishes as revealed by species–habitat networks
Abstract How species interact with habitat patches is influenced primarily by habitat configuration (e.g., connectivity) and species’ functional traits. As levels of fragmentation increase, identifying the intricate connections between these components is crucial for biodiversity conservation.
Chen Zhang +8 more
wiley +1 more source
Study on phytoplankton community similarity and ecological connectivity in northern Beibu Gulf [PDF]
浮游植物是海洋生态系统中主要的初级生产者,是构成海洋生态系统食物网的基础环节,其种类变化和群落结构直接影响海洋生态系统的结构和功能,在海洋生态系统的物质循环和能量流动过程中起着重要作用。本文以2006~2007年于北部湾进行的四个航次的调查数据,分析了北部湾北部浮游植物的种类组成、数量变化、群落结构以及生物多样性,探讨了浮游植物的群落演替和群落相似性及生态连通性的调控机制,获得主要结果如下: (1)北部湾北部浮游植物四季共鉴定273种(含变种和变型),隶属于5门78属,种类组成以广温类和暖水类为主 ...
王符菁
core
Contribution of microcosm experiments to conservation science
Abstract Microcosms, or miniature experimental systems, have been used to develop models and theories in ecology. However, their contribution to conservation science is unclear. We explored the application, design, and impact of microcosms in conservation science from 469 systematically identified articles published from 1986 to 2023.
Eleanor R. Stern +3 more
wiley +1 more source

