populationdensity相关论文
According to geographic possibilism,environment does not determine socio-economic development.However,the environment se......
We conducted the quantitative samplings of benthic communities and measurements of water temperature in the headwater st......
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A COMPREHENSIVE ASSESSMENT AND COMPARATIVE ANALYSIS OF THE REGIONAL WATER RESOURCES PRESSURE AND WAT
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Effects of planting density on the growth and photosynthetic characteristics of Alternanthera philox
Density and nutrient level are important factors that might affect the growth of invasive plants.To reveal the effects o......
With the wide application of rare earth elements(REEs)in industrial,agricultural and emerging industries,the exposure of......
As two main atomic alkalis,rubidium (Rb) and cesium (Cs) have the similar energy-level structures and physical features....
The geographic distribution patterns and habitat selection of the Chinese concave-eared torrent frog
The concave-eared frog,Odorrana tormota,is a rare species native to eastern China and the first non-mammalian vertebrate......
In anuran amphibians,mating without amplexus is known for less than six species.Here we provide a new example of simulta......
【目的】昆虫种群密度的升高往往成为一种胁迫因子。粘虫在低密度下形成散居型,而在高密度下则形成群居型。本研通过比较hsc70在两......
Overwintering parasitism is positively associated with population density in diapausing larvae of Ch
The suppression of overwintering population is essential in integrated pest management, but little is known about the bi......
Study of the Dynamics of Microcystis aeruginosa and its Cyanophage in East Lake using quantitative P
Dear Editor,rnEast Lake,located in the middle and lower reaches of the Yangtze River,is a major source of drinking water......
Influences of Post-fires on Subsequent Population of Japanese Pine Sawyer Beetles, Monochamus altern
[Objective]Both fire and insect outbreaks are considered as important natural disturbance factors in many forest ecosyst......
Population distribution and threats to sustainable management of selected non-timber forest products
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影响湿地松粉蚧种群密度因子的初步研究＊顾茂彬陈佩珍关键词湿地松粉蚧、种群密度、环境因子湿地松粉蚧（ＯｒａｃｅｌａａｃｕｔａＦｅｒｉｓ）［１］于１９８８年由美国传入广东省台山市......
为建立一适合高原鼢鼠种群数量中，短期预测的数学模型，经过连续５年的实地调查，获得了种群绝对数量，相对数量和年龄结构的参数，在关联度分......
