taxa 中文意思是什麼

taxa 解釋
n. 名詞 taxon 的復數。

  1. Cryptic species have been found in a wide range of marine organisms ; with majority of them are benthic invertebrates. in contrast, marine holoplanktons are thought to have lower diversity and slow speciation due to their strong dispersal potential. this paper reviewed studies on cryptic species and speciation in marine holoplankton. based on findings in 38 studied taxa, it was concluded that : 1 ) cryptic species are pervasive in marine holoplankton, suggesting holoplankton speciation was more active than previously thought ; 2 ) current morphospecies diversity is untenable to reflect true species diversity in marine holoplankton ; 3 ) geographic isolation may facilitate cryptic speciation of marine holoplankton. however, contribution of allopatric speciation is still questionable ; 4 ) ecological speciation may be the prevailing speciation mode in marine holoplankton. cryptic speciation in marine holoplankton is paradoxical, because rapid speciation under strong gene flow is countertuitive. solution of this paradox will help us gain deep insights of marine speciation and biodivesity

    隱種廣泛存在於各類海洋生物中,尤其是底棲無脊椎動物.然而,海洋終生浮游生物由於具有較強的擴散能力,往往被視為生物多樣性低、物種形成慢.本文就海洋終生浮游生物隱種與物種形成的研究作一綜述.基於研究的38個種類,結果表明: 1 )海洋終生浮游生物普遍存在隱種,其物種形成要比想象得快; 2 )由於引種的廣泛存在,形態種生物多樣性無法反映海洋終生浮游生物真正的物種多樣性; 3 )地理隔離有助於海洋終生浮游生物隱種的形成,但異域物種形成的作用仍值得商榷; 4 )生態物種形成很可能是海洋終生浮游生物物種形成的主流模式.海洋終生浮游生物強基因流下快速的物種形成有悖于生物進化常理,解決該悖論將有助於我們對海洋物種形成和生物多樣性的理解
  2. Biosystematics : the area of systematics in which experimental taxonomic techniques are applied to investigate he relationships between taxa

    生物系統學:在系統學領域內運用試驗分類技術來調查分類單元之間關系的學科。
  3. Based on close examination and detailed anatomy of thousands of specimens, much new information pertaining to the 5 known taxa of brachiopods has been revealed here

    第二章對近些年來腕足動物的分類、系統進化和形態解剖方面的研究進展做了概括性的總結。
  4. Based on a huge number of bachiopod fossils recently collected from haikou, kunming, the 5 known taxa of brachiopods in chengjiang fauna are further researched into and a new lingulid genus and a new species ( xianshanella haikouensis gen

    近些年來,隨著澄江化石庫研究的深入和大量化石的不斷發掘,澄江動物群腕足動物的形態解剖、生態和埋藏等各個方面均發現了許多新的信息。
  5. The complete nucleotide sequence of the mitochondrial genome of f. limnocharis was detailedly compared with those of 5 other amphibians. the nucleotide sequences of 22 trna encoded by 6 amphibians mitochondrial genomes were combined and aligned to the homologous sequences of the 11 veterbrate taxa. using teleosts as outgroup, the phylogenetic analyses results show that mp, nj and ml trees all strongly support the monophyly of living amphibians with respect to other living tetrapods and favor a sister group relationship for caecilians and salamanders

    我們在測定了澤蛙線粒體全基因組序列的基礎上,與已知其它的5種兩棲類進行詳細的比較分析,同時選擇了11種高等脊椎動物的線粒體全基因序列,以硬骨魚類做外群,用22個trna基因合併數據進行系統發生重建分析,結果表明mp 、 nj和ml樹都強力地支持現生兩棲類動物為單系群並且蠑螈類和蚓螈類為姐妹群關系(自引導值分別為92 、 99 、 100 ) 。
  6. Constant companions are added to the character taxa to form the " characteristic species combination " for associations and higher taxa

    恆有伴生種加特徵種構成群叢或更高級分類單位的「特徵種組合」 。
  7. And supports to the establishment of a separate genus neoeriocheir, but does not provide justification for the recognition of platyeriocheir. the results provided more evidence of the conspecific status of three taxa : e. japonica, e. sinensis and e. hepuensis. the mitten crabs distributed in china and okinawa of japan constitute a monophyletic group sister to e. japonica from osaka of japan suggested that two subspecies of e. japonica : e. j

    基於線粒體16srdna部分序列的系統發生分析支持日本絨螫蟹、中華絨螯蟹與合浦絨螯蟹合併為一個物種,即日本絨螯蟹( e . japonica ) ,分佈於中國和日本沖繩的絨螯蟹與分佈在日本大阪的絨螯蟹構成姊妹群,提示日本絨螯蟹可能包含2個亞種,即日本絨螯蟹指名亞種( e . j . japonica )和中華亞種( e . j . sinensis ) 。
  8. However, there have been many of ambiguities and divergences for the taxa of family, genus and species in cruciferae for a long time

    但長期以來,對於十字花科族、屬和種的劃分存在很多問題和爭議。
  9. Among 183 taxa, diatom ( 143 ) were accounted for 77. 8 %, followed by dinoflagellates ( 34 ), the others ( 6 ). diatom was the dominant group in total phytoplankton

    本調查共鑒定浮游植物183種,其中硅藻門51屬143種,占總種數的77 . 8 ;甲藻門11屬, 34種;其它6屬6種。
  10. Taxa which occur only in single restricted geographical areas are known as endemics.

    僅僅出現于單個有限地理區域的分類群稱為特有類群。
  11. 42 trees are obtained and the 13th is most acceptable. the results show that the evolutionary inclination of forewing and hindwing of empoascini is that the forewing evolved from these whose veins of mp " are derived from cell r, to these whose mp " from cell m, and the most advanced taxa include these whose 3 distal veins are derived from cell m. the hindwing are evolved from these whose cua is branched and the mp " + cua " is presented, to those whose cua is unbranched and mp " + cua " disappeared, based on the above analysis, the genera of empoascini can be divided into two groups : one group includes these whose mp " + cua " are present, the other consists of those whose mp " + cua " are disappeared

    在系統發育方面,應用hennig86 ( version1 . 5 )軟體,根據中國小綠葉蟬族40個屬及外群dikraneura ,首次研究了該族的系統發育關系,根據研究結果初步提出了該族前、后翅脈的進化方向,即該族前翅翅脈呈現出mp脈源於r室,逐漸進化到mp脈源於m室,最後前翅3條端脈皆源於m室的趨勢;后翅翅脈由cua脈端部分二叉,進化到后翅cua脈端部不分叉、 mp + cua脈退化的趨勢。
  12. Study on species and geographic distribution of small - flowered taxa of epimedium l. in china

    中國淫羊藿小花類群的種類與地理分佈
  13. As well as about 50 species and infraspecific taxa were named after his name. prof. zhong was the first botanist to collect plant specimens in a modern plant taxonomical way, and established the first herbarium herbarium of peking university and modern botanic garden jianqiao garden in china

    鐘先生既是我國用近代植物分類學方法研究和採集植物的第一人,也是我國第一個植物標本室北京大學植物標本室和第一個近代植物園筧橋植物園的創建者,在我國近代植物學發展史上寫下了重要的一頁。
  14. The phylogenetic trees promulgate that : ( a ) est traits significantly differ between different generic taxa and between different species in the same genus, ( b ) similarity degree of est traits between different taxa is not correlative to that of morphological characters. some morphological taxa in traditional classification are not monophyletic group, ( c ) relationship among subfamilies based on est characters is somewhat compatible to intrafamily phylogeny proposed by schuh ( 1976 ), but it is clear that orthotylinae and phylinae are not directly sister grouped

    分析結果表明( 1 )酯酶同工酶酶譜特徵在不同屬級單元之間以及同屬的不同種類之間都存在著明顯的差異: ( 2 )不同屬種之間酯酶同工酶特徵的相似程度與外部形態特徵之間的相似程度不一致性,以外部形態為主要依據的傳統分類的一些屬不是真正的單系群。
  15. Numerical taxonomy on the basis of the morphology and palynology, 11 taxa were studied using the numerical taxonomy, on which relationship between the species were discussed. the results revealed that relationship among 34 characters used by the numerical taxonomy were relatively isolated. 5. molecular systematics data obtained from rapd technique significantly shows relationship between this species

    數量分類研究在形態和抱粉學觀察的基礎上進行了潤捕屬植物的數量分類研究,探討了各類群間的相互關系,所獲得的結論與比較形態學和抱粉學研究的結論基本一致。
  16. The species group includes all taxa at the ranks of species and subspecies [ art. 45. 1 ]

    種群包含種級和亞種級的所有分類單元[第45條1 ] 。
  17. Each of two or more identical specific or subspecific names established for different nominal taxa and originally combined with the same generic name [ art. 57. 2 ]

    為不同的命名分類單元建立的兩個或多個相同的種本名或亞種本名中的每一個,原來與同一屬名相組合[第57條2 ] 。
  18. Each of two or more identical specific or subspecific names established for different nominal taxa and originally combined with different generic names but subsequently combined with the same generic name [ art. 57. 3 ]

    為不同的命名分類單元建立的兩個或多個相同的種本名或亞種本名中的每一個,原來與不同的屬名相組合,而後來則與同一屬名相組合[第57條3 ] 。
  19. The family group includes taxa at the ranks of superfamily, family, subfamily, tribe, and any other rank below superfamily and above the genus group that may be required, such as subtribe [ art. 35. 1 ]

    科群包括首科、科、亞科、族等層級的分類單元,以及需要時在首科之下和屬群之上加入的任何其他層級的分類單元,如亞族[第35條1 ] 。
  20. Constant companions are added to the character taxa to form the "characteristic species combination" for associations and higher taxa.

    恆有伴生種加特徵種構成群叢或更高級分類單位的「特徵種組合」。
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