Results 1 to 10 of about 113 (69)
miaSim: an R/Bioconductor package to easily simulate microbial community dynamics
Abstract Microbiomes never stop changing. Their compositions and functions are shaped by the complex interplay of intrinsic and extrinsic drivers, such as growth and migration rates, species interactions, available nutrients and environmental conditions.
Yu Gao+7 more
wiley +1 more source
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
Modeling mammal response to fire based on species’ traits
Abstract Fire has shaped ecological communities worldwide for millennia, but impacts of fire on individual species are often poorly understood. We performed a meta‐analysis to predict which traits, habitat, or study variables and fire characteristics affect how mammal species respond to fire.
Christopher A. Pocknee+3 more
wiley +1 more source
通过群落与种群的调查,对浙江北部几个地区的青冈常绿阔叶林中青冈种群的数量特征,从分株和分株+萌生枝两个层次上进行了研究.结果表明:青冈种群的大小结构在分株层次上,有两种类型:纺锤形结构和不典型的金字塔形结构(倒"J"型),在分株+萌生枝层次上,都为金字塔形结构;青冈种群主要是集群分布格局;动态分布格局是从集群分布到随机分布.
HUXiao-bing(胡小兵)+1 more
doaj +1 more source
Oaks are often removed as part of longleaf pine restoration; however, it is unclear if oak patches produce important resources for native wildlife. We studied wildlife use of the transition between longleaf pine woodlands and hardwood hammocks. We found these areas support a variety of wildlife species and future management and restoration of longleaf ...
Adia R. Sovie+2 more
wiley +1 more source
以浙江天台山特有种华顶杜鹃为研究对象,分析了它所在群落的结构Q物种组成及数量特征.在该群落中,华顶杜鹃不占优势,优势种群为阔叶箬竹、黄山松、山□和金钱松等,它们的年龄结构都属于稳定型或增长型.群落垂直结构完整,可分为乔木层、灌木层、草本层,亦有一定数量的层间植物.乔木层的物种多样性偏低,灌木层和草本层的物种多样性较高.各样地间的植物种类相似性较高.华顶杜鹃处于濒危状态,必须采取措施加以保护.
ZENGHan-yuan(曾汉元)+2 more
doaj +1 more source
Synthetic microbial consortia with programmable ecological interactions
Abstract Central to the composition, structure and function of any microbial community is the complex species interaction web. But understanding the overwhelming complexity of ecological interaction webs has been challenging, owing at least partly to the lack of efficient tools for disentangling species interactions in natural or artificial microbial ...
Shuyao Li+8 more
wiley +1 more source
Leaf morphological traits as adaptations to multiple climate gradients
The plastic response of size, shape, colour and other leaf morphological traits to climate is muted, thus their apparent shift along climate gradients reflects plant adaptations to environment at a community level as determined by species replacement.
Han Wang+3 more
wiley +1 more source
华顶杜鹃(Rhododendron huadingense) 因分布地域的局限和资源量的稀少,被列为浙江省珍稀濒危植物。基于珍稀特有植物华顶杜鹃主要分布区的样地调查数据,通过分析群落相似性、种群结构,并基于2×2 联列表,应用共同出现百分率PC、联结系数AC、Pearson 积矩相关系数rp 和Spearman 秩相关系数rs等方法对华顶杜鹃乔木层22 个主要物种、灌木层24 个主要物种的种间联结的显著性和关联强度进行了定量测定,以揭示华顶杜鹃群落不同结构层次中主要物种的种间关系及其种群濒危的原因 ...
CAIXin(蔡鑫)+7 more
doaj +1 more source
对东白山(Dongbaishan,DBS)1 hm2森林样地内胸径≥1 cm的木本植物进行统计,初步分析了样地的区系成分、物种组成、群落结构和α多样性.结果表明:样地内共计木本植物48种,隶属23科36属,总计5 493株,以常绿树种为主,共25种,占总优势度的98.18%,重要值的95.22%,总个体数的96.65% ;群落内有明显的优势种、偶见种和部分稀有种,木荷(Schima superba)和马尾松(Pinus massoniana)占显著优势;偶见种和稀有种分别占总物种数的35.42%和20 ...
WANGYunquan(王云泉)+7 more
doaj +1 more source