物種群 的英文怎麼說
中文拼音 [wùzhǒngqún]
物種群
英文
species group-
Form. taxus chinensis var. mairei is protecting plant in the first class, which is a precious and endangering plant in china in this paper, the quantitative characterics of form. taxus chinensis vsr. mairei population including age structure, spatial distribution pattern, growth dynamics of tree basal area, niche characterics, fractal dimension and competition between specises were studied using methods of mathematics ecology from the angle of population ecology of form. taxus chinensis var. mairei, then the prent state and the endangering causes were analysed. this research offers gist to protecting and enlarging the crude resourse of form. taxus chinensis vsr. mairei population, afforesting plantation and sustainable utilize for us
本文從南方紅豆杉種群生態學的角度、主要應用數學生態學的方法探討南方紅豆杉種群的數量特徵,包括南方紅豆杉種群年齡結構、種群空間格局(探討分佈格局動態規律與生境相互關系) 、不同立地條件下種群優勢度增長趨勢、生態位寬度、生態位相似比例、生態位重疊、空間占據能力及種間競爭等,分析其目前現狀及瀕危原因,期望為南方紅豆杉野生資源的保護和擴大、營造人工林及可持續利用提供理論基礎,也為瀕危植物種群生態學的研究提供參考。The probing of biotic population regulation mode
生物種群調節方式探討The metabolism and succession of microbial population took place ceaselessly during the fermentation and led to microbial polymorphism which mainly presented as anaerobe, methane bacteria, caproic acid bacteria, lactic acid bacteria, sulfate reducing bacteria, and nitrate reducing bacteria etc
其微生物種群的多態性主要表現為厭氧異氧菌、甲烷菌、己酸菌、乳酸菌、硫酸鹽還原菌、硝酸鹽還原菌等。The animal belongs to an ancient group of mammals called plesiadapiforms, small creatures that scientists recently thought were closely related to modern nonprimates called flying lemurs
這種動物屬於一個古老的哺乳動物種群- plesiadapiform ,科學家認為這種小型動物與現代的飛行狐猴很親近The paper compares the most popularly used surplus production models using simulated data and swordfish, xiphias gladius, fishery data in the north atlantic ocean
本文應用目前常用的四種剩餘產量模型對五種漁業條件下的漁業生物種群及北大西洋箭魚種群xiphiasgladius評估結果作了比較。Studies by hargrave and geen estimated natural community graz - ing rates by measuring feeding rates of individual zooplankton species in the laboratory and then computing community grazing rates for field conditions using the known population density of grazers
由哈格雷夫( hargrave )和吉恩( geen )所進行的研究,對自然條件下的群落食草比例進行了估計,其手段是通過測量出實驗室內單獨的浮遊動物種類的結食比例,然後利用已知的食草動物種群密度,計算出實地狀況下的群落食草比例。By 1969 it had reached infestation proportions and was killing off whole local populations of its host.
到1969年它已達嚴重危害,將本地區該植物種群全部害死。Interspecific covariant among ten mains species groups of arthropods on kudzu pueraria lobata
葛藤主要節肢動物種群種間協變的研究We constructed fences using 2 x 2 x 2 factorial design to examine the effect patterns of food availability, predation and interspecific competition on population dynamics and spatial behavior of reed voles, microtusfortis. we expected to test two hypothesises : ( 1 ) availability of high quality food, predation and interspecific competition have independent and addictive effects on population system dynamics for small mammalia herbivore ; ( 2 ) availabiliry of high quality food could reduce home range and aggressive behavior level between individuals of microtine, predation and interspecific competition have independent effects on spatial behavior of microtine
以2 2 2析因實驗設計,在野外圍欄條件下,探討食物可利用性、捕食及種間競爭對沼澤田鼠( microtusfortis )種群動態及空間行為的作用,旨在檢驗下述特定假設: ( 1 )高質量的食物可利用性、捕食及種間競爭對植食性小哺乳動物種群系統動態具有獨立的和累加的效應; ( 2 )高質量的食物可利用性可降低田鼠個體間的攻擊行為水平,並導致其巢區減小;捕食與種間競爭對田鼠的空間行為亦有獨立的作用。The parasite population opposing vertical resistance may undergo stepwise development controlled by many genes.
抵抗垂直抗性的寄生物種群可能要經歷許多基因控制的步增發育。From the aspects of agricultural economic and environmental ecological effects, were the effects and mechanism of rare - earth micro - fertilizer to improve the growth, development, quality and yield of the crops ; the adjustment of crops growth by influencing the number of microbial population in soil district and the function of the soil dehydrase, alkaline phosphatase, urease and sucrase ; the ecophysiological effects of alleviating the injure of acid rain, ultraviolet radiation, heavy metal on crops were illustrated ; the sureness of bee ' s use in agricultural was provided, according to the rule of the distribution and enrichment of be in crops
摘要從農業經濟效應和環境生態效應二方面,論述了稀土肥料促進作物生長、發育,提高作物產量,改善作物品質的效應與機理;影響土壤區系中微生物種群數量和土壤脫氫酶、堿性磷酸酶、脲酶及蔗糖酶的功能,繼而反饋調節作物生長;緩解酸雨、紫外輻射和重金屬傷害作物的生態生理學效應;並以稀土在作物體內分佈與富集規律為參考,探討了稀土農用的安全性。Both single species and whole groups of species last for very unequal periods.
單獨的物種以及整個的物種群存續的時期極不相等。The existence and uniqueness of global solutions in a functional differential equation model of biological population
一個有關生物種群的泛函微分方程模型整體解的存在性和唯一性The research results mainly show : ( 1 ) the ecological degradation characteristics of wuxi county include : some soil is thin and barren and its water and fertility conservation abilities are poor, gradual degradation of soil results in decrease of vegetation diversity and the vegetation community structure gradually inclines tc simplicity from complexity. the types of soil and water loss in wuxi county mainly involve surface erosion and gully erosion. according to investigation, surface erosion area occupies 80 % or so or erosion area, in which the slope farmlands surface erosion area accounts for about 70 % of farmland erosion area
研究結果主要包括: ( 1 )巫溪縣生態退化特徵表現:作為生物生長基質的部分土壤薄而貧瘠,保水保肥能力差,部分地區基巖裸露,土壤的不斷退化導致植物種多樣性減少,植物種群結構逐步由復雜趨向簡單化;縣內水土流失的類型主要包括面蝕和溝蝕兩大類,據調查,面蝕面積占侵蝕總面積的80左右,其中坡耕地面蝕佔耕地侵蝕面積的70左右。The whole groups of species sometimes falsely appear to have been abruptly developed.
整個的物種群有時會假象地表現為突然發生的。The system could move forwards at the speed of 1 m / a or the patches shifted their sites each other, which led to the clone population and maintained its stable state in even large area
同時,林緣擴散種群具有密度大、生產力高等特徵,但其生物量積累和自然稀疏過程與有性植物種群具有相同的規律。On the other hand, this paper details the study on effects of environmental pollution on the algae growth besides essential nutrition, especially those of dye wastewater in sunan area on the process of eutrophication, from which we expect to know what the environmental pollution factors overlapping other factors interfere with the competitive relationships of different species and have a certain effects on the succession of water ecosystem species
另外,論文中的實驗也涉及到除對藻類生長所必需營養物外的環境污染因子的影響。尤其是蘇南地區的染料廢水等對富營養化過程的影響,以期了解疊加在其他因素上的環境污染因子對生物種群間的競爭關系的干預,及對水生生態系統種群演替的影響和程度。A mathematical model of seasonal creature population
一種季節性生物種群消長模型The living planet index measures overall trends in populations of wild species around the world. it includes 555 terrestrial species, 323 freshwater species and 267 marine species
生生不息地球指數測量全球野生生物種群的整體趨勢,包括555種陸地生物323種淡水生物和267種海洋生物。Genetic control is critical for maintaining variability and avoidance of inbreeding, ensuring the long - term viability of captive nonhuman primate colonies
對非人靈長類動物種群實行遺傳學控制,對于維持種群的遺傳多樣性,提高動物長期的生存力和繁殖率,滿足醫學生物學實驗需要具有現實意義。分享友人