mixed-species population 中文意思是什麼
mixed-species population
解釋
混生種族群- mixed : adj 1 混成的,混合的。2 混雜的,各式各樣的。3 男女混合(成)的;各階層混合成的。4 〈英國〉男女同...
- species : n. 〈sing. , pl. 〉1. 種類;【生物學】(物)種。2. 【邏輯學】種。3. 【原子能】核素。4. 【法律】形式。5. 【宗教】聖餐物。
- population : n. 1. 人口;人口總數;全體居民;人口的聚居。2. 物的全體[總數];【生物學】蟲口;種群(量);群體;族,組,個數;【統計學】對象總體,全域。3. 【物理學】布居;密度。4. 〈罕用語〉殖民。
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Dusky thrush ( turdus naumanni ), common magpie ( pica pica ), bohemian waxwing ( bombycilla garrulus ), grey - faced woodpecker ( picus canus ) mainly consists of single species, and the average population size is 6. 26 individuals ( 1989 - 1990 ) and 7. 44 individuals ( 2001 - 2002 ), the mixed species population mainly consists of great tit ( parus major ), marsh tit ( parus palustris ), eurasian nuthatdch ( sitta europaed ), the average species number is about 3, average number is 7. 4 individuals
冬季鳥類的集群明顯,單種群主要為長尾山雀、斑鴉、喜鵲、太平鳥和黑枕綠啄木鳥群,每群平均個體數為6 26隻門? 1990年)和7 44隻( 2001 2002年) ,混合群主要由大山雀、沼澤山雀和普通幅構成,每群平均種數在3種左右,平均個體數在7 -
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 -
The number of mixed species population is twice as many as single species population
4隻左右。混合群的數量是單種群數量的2倍。 -
Study on population dynamics of chinese fir and its associated tree species in natural chinese fir - and - broad - leaved mixed forest in northwest fujian
閩西北天然杉闊混交林杉木及其伴生樹種種群動態研究
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