niche breadth 中文意思是什麼

niche breadth 解釋
生態席位廣度
  • niche : n. 1. 壁龕〈擱雕像、花瓶等的墻壁凹處〉；【地質學；地理學】雪凹。2. （適合個人性格、能力等的）適當地位，活動范圍；【生物學】小生境。3. （市場供求情勢為企業家提拱的）有利可圖的缺口。
  • breadth : n 1 寬度 （opp length depth） 幅，橫幅，幅員；廣度，寬廣；（學識等的）廣博。2 （布的）幅面；船幅...
  1. Low niche breadth and similarity ratio, resulting from the conditions of the droughty desert habitats, are one of the major features of sparsely distributing plants in droughty desert ecological environments

    生態位寬度和生態位相似比例小是受制於乾旱荒漠生境條件的結果，是乾旱荒漠生態環境中稀疏荒漠植物的主要特徵之一。
  2. The trophic niche breadth of little egret and cattle egret was

    527 ，牛背鴛生態位寬度為0
  3. Niche breadth of four dominate populations at three age groups was studied by the methods of resource utilization ability and ratio. the result shows that : symplocos sectchuanensis is a typical gengeration species whi ch resource utilization ability is strong, and distribution is wide. meanwhile, go rdonia acuminata, castanopsis fargesis and pinus massoniana specialized at some d egree in resource utilizationm, their distribution is limited. especially, the ju venile of pinus massoniana specialized outstandingly. with the devlopment of pinu s massoniana, which is the pioneer population in mt. jinyun, the environment become s unfit to it ' s juvenile. it turns to needle and evergreen broad - leaves mixed fo r est. because the tolerance toward shading of gordonia acuminata is lower than tha t of castanopsis fargesis, gordonia acuminata will be substituted by castanopsis fargesis and other evergreen broad - leaves species are the edificators. the popul ation ' s ability of resource utilization is the inner factor of population distri bution and community succession. the distribution of light and the concentrate of nutrient ( such as n ) is the outer factors of community succession

    對縉雲山森林植被的4個優勢種群3個年齡級生態位寬度進行了研究.結果表明，川灰木利用資源的能力最強、分佈廣，為典型的泛化種.大頭茶、栲樹、馬尾松對資源的利用在一定程度上特化，分佈上有一定的局限性.馬尾松的中齡組與幼齡組特化現象十分顯著.縉雲山森林植被的先鋒種馬尾松的發展，導致環境的改變不適于其幼齡個體的生長，群落演替到針闊葉混交林階段，最後發展為以栲樹等為建群種的常綠闊葉林.種群的資源利用能力，是種群分佈與群落演替的內在原因，光因子和營養元素（如n ）是群落演替的主要外部動力
  4. 5 we analysis the feeding niche breadth of 7 species, the variables include feeding methods, height of feeding parts, level and vertical position of coronal layer, base matter that birds feed on, the species of trees that birds feed on

    對7種烏類取食生態位的寬度進行了統計計算，包括取食方式、取食高度、冠層水平位置、冠層垂直位置、取食基質和取食樹種。
  5. This paper selected the middle part of taihang mountain as study area. the species diversity, interspecific association and correlation, and niche breadth and niche overlap were studied. the community types, community structure, ecological relationships between species diversity and community types, environmental variables were analyzed in details

    本文以太行山中段植被為研究對象，從植物群落的物種多樣性、種間關系及群落優勢種的生態位寬度和生態位重疊三個方面深入探討和研究了該地區群落類型、結構、生態及分佈格局，群落多樣性與群落類型、生境、群落結構之間的關系，以及主要優勢種的種間關系。
  6. Reaumuria soongorica and haloxylon ammodendron were dominant species occupying big niche breadth, and other species are companion

    2769 ） 。生態位寬度較大的紅砂和梭梭為優勢種，其餘草本植物為伴生種。
  7. The dominant species have the widest niche breadth in the communities, and annual short - life plants many a time get into the communities while the niches of the dominant species decrease

    群落中的優勢種植物的生態位最寬，當優勢種生態位減小時，一年生短命植物往往會進入群落中。
  8. Niche and genetic differentiation of several desert plants were detected to analyze the relationship between niches and genetic diversity of desert plants, test niche breadth variation hypothesis, and probe the reasons for haloxylon ammodendron endangering. in this paper, the study on plant community species diversity and genetic diversity in the region will provide scientific theory basis for conquering desert

    從物種多樣性和遺傳多樣性兩個層次上，闡明了荒漠地區的生物多樣性特徵；在分析幾種荒漠植物（堿蓬、叉毛蓬和梭梭）遺傳變異和生態位的基礎上，探討荒漠植物種的生態位與遺傳多樣性的關系，驗證關于生態環境與遺傳變異的生態位寬度變異假說。
  9. In this paper, the niche characteristics of the dominant herb species in the subtropical ev - ergreen broad leaved woodland ( 53 species ) have been measured at the natural reserve of wanmu ling, including niche breadth, niche proportional similarity and niche overlap

    對萬木林自然保護區常綠闊葉林森林群落的53個主要種群進行生態位測定，包括生態位寬度、生態位相似比例、生態位重疊。
  10. Analysis on the niche breadth and resource competition of the four termite species

    4種白蟻生態位寬度與資源競爭分析
  11. The feeding niche breadth does not change significantly among 7 species ( p > 0. 01 )

    7種鳥類在取食生態位寬度上變化不顯著（ p 0刀1 ） 。
  12. Simpson shannon - wiener methods for measuring niche breadth and wang - gang niche overlap formula are more fitted to ecotone

    Simpson 、 shannon - wiener生態位寬度公式和王剛生態位重疊公式對該區更為適用。
  13. In this study, the niche characteristics of 12 main tree populations in ? castanopsis carlessii ? forest have been analyzed by quantitative method at the nature reserve of wuyi mountains, including niche breadth, niche proportional similarity and niche overlap

    植物種群之間的生態位相似性比例和生態位重疊指數指標值反映了亞熱帶常綠闊葉林的生態特徵。
  14. The results indicated that the greater the niche breadth of a species was, the stronger the ability of adaptation to environment and using resources was. the greater the niche overlap value for some species - pairs, the more similar the environmental requirements and resource use. the species with wide niche breadth may have high overlap value with species with narrow niche breadth, and low on the contrary

    結果表明，種群生態位寬度越大，對環境的適應能力越強，對資源的利用能力也越強；生態位重疊越大，種群間的生態相似性越大，利用資源的相似性程度越高；生態位寬的種群對生態位窄的種群可能有較高的重疊值，反之則較低；生態位寬度最大的種群不一定為群落的建群種。
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