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   食物生态位 的翻译结果: 查询用时:0.021秒
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食物生态位
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  food niche
     The food niche width of Mongolian cattle and sheep was 0.64 and 0.67 respectively,and there was no significant difference between them(P>0.05).
     蒙古牛和蒙古羊的食物生态位宽度分别为0.64和0.67,二者无明显差异(P>0.05).
短句来源
     The over lap of the food niche of cattle and sheep was about 60%.
     蒙古牛和蒙古羊的食物生态位重叠度为60%.
短句来源
     Food niche breadth was 7.26 for adults and 6.69 for juveniles. Food niche overlap between adults and juveniles was 0.59. Males were the larger sex in E.
     成体和幼体的食物生态位宽度分别为 7.2 6和 6.69,成体和幼体的食物生态位重叠度为 0 .59。
短句来源
     However,no direct evidence shows a substantial contribution of the divergence in head size to the segregation of food niche between males and females.
     没有直接的证据表明两性头部大小的差异能导致两性个体食物生态位的明显分离 ,并有利于缓减两性个体对共同食物资源的竞争。
短句来源
     These two animals species showed a certain overlap in food niche and red deer had broader food niche than roa deer during winter.
     两种动物食物生态位有一定重叠,马鹿食物生态位的宽度在整个冬季大于狍。
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  “食物生态位”译为未确定词的双语例句
     The food niches under grazing condition were 60% for both species.
     二者的食物生态位重叠度大约60%.
     (3)The feed niche width of cattle and sheep were 64% and 68% ,respectively . It means that about 1/3 of the plant resources of the sandy pasture were not utilized by the native animal as food plant.
     (3)蒙古牛和蒙古羊的食物生态位宽度平均为64%和68%,即当地草地植物资源中,约1/3的部分未被利用.
  相似匹配句对
     Niche
     生态位
短句来源
     Food of Americans
     美式食物
短句来源
     unfit food
     食物禁忌
短句来源
     The food niches under grazing condition were 60% for both species.
     二者的食物生态位重叠度大约60%.
     FOOD DIVERSITY AND TROPHIC NICHE OF THE BREEDING POPULA
     花背蟾蜍繁殖种群食物多样性及营养生态位的研究
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  food niche
This purely carnivorous species usually becomes a facultative piscivore after two discrete food niche shifts.
      
These experimental results suggest for the first time that piscivory of Eurasian perch is negatively influenced by different sources of turbidity, and hence low visibility might delay the onset of the food niche shift to fish prey.
      
pengoi has adapted well to the Baltic ecosystem, sharing food niche with pelagic mysids and most probably having a strong influence on the whole pelagic food web.
      
cuspidatus, to carry constantly their polyphagous mealybug partners to new feeding sites and to take the whole colony there has enabled this ant and its symbiont to occupy this rich food niche.
      
Food niche relationships among four sympatric Sceloporus species were studied in the Sierra Madre Occidental, N.E.
      
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Comparison of winter diets of red deer and roe deer showed that the plant species in winter diets of these two animal species were primarily similar, but the percentage of each plant species was significantly different. Principal foods of red deer and roe deer were composed of 4 plant species (Po-pulus spp., Salix spp. and Tilia amurensis) and 3 plant species (Betula spp., Tilia amurensis and Populus spp.) respectively. Red deer had strong solectivities to ligneous plants compared with roe deer. A significant...

Comparison of winter diets of red deer and roe deer showed that the plant species in winter diets of these two animal species were primarily similar, but the percentage of each plant species was significantly different. Principal foods of red deer and roe deer were composed of 4 plant species (Po-pulus spp., Salix spp. and Tilia amurensis) and 3 plant species (Betula spp., Tilia amurensis and Populus spp.) respectively. Red deer had strong solectivities to ligneous plants compared with roe deer. A significant negative interelationship was found between the selectivities of plants browsed by red deer and the content of hemicellulose but wasnt for roe deer. Crude protein and acid detergent lignin were lower and digestible dry matter higher in red deer diets conpared with roe deer. These two animals species showed a certain overlap in food niche and red deer had broader food niche than roa deer during winter. Roe deer might intake energy through an approach different from that predicted by the traditional theory in winter.

马鹿和狍冬季取食的植物种类基本相同,但采食各种植物的比例明显不同。马鹿的主要食物为杨、桦、柳、紫椴,狍为桦、紫椴、杨,与抱相比,马鹿对木本植物有更强的选择性。马鹿对植物的选择性和植物中半纤维素的含量之间存在明显的负相关关系,而狍则不存在这种关系。马鹿食物中粗蛋白和酸性洗涤木质素的含量低于狍,可消化干物质的含量高于狍。两种动物食物生态位有一定重叠,马鹿食物生态位的宽度在整个冬季大于狍。狍在冬季可能通过不同于传统理论预测的途径来获取能量。

Adult grass lizards,Takydromus septentrio nalis,are similar in size (SVL) but sexually dimorphic in head size (males' larger than females') throughout its range.A comprehensive analysis on the ecological and evolutionary sources of sexual differences in growth and size of heads requires a detailed understanding of growth trajectories during ontogeny.In this study,we specifically quesioned at what point during ontogeny males and females diverge in head size:at birth,during juvenile growth,or as mature adults?...

Adult grass lizards,Takydromus septentrio nalis,are similar in size (SVL) but sexually dimorphic in head size (males' larger than females') throughout its range.A comprehensive analysis on the ecological and evolutionary sources of sexual differences in growth and size of heads requires a detailed understanding of growth trajectories during ontogeny.In this study,we specifically quesioned at what point during ontogeny males and females diverge in head size:at birth,during juvenile growth,or as mature adults? Our results indicate that males and females begin to diverge in head size at birth,although the divergence in the newly emerged young is much less pronounced than that in adults.An ANCOVA indicates that adult females even have smaller heads than do juveniles (including the newly emerged young).This suggests that adult females partition less resources into head growth but more into carcass growth,thereby leaving a larger space for eggs so as to increase reproductive output.Lizards collected in different seasons,from different populations,and at different ontogenetic stages,in various degrees,differ in food niche width and breadth.However,no direct evidence shows a substantial contribution of the divergence in head size to the segregation of food niche between males and females.Our analyses support that sexual selection is the main evolutionary source of smaller heads in female T.septentrionalis.

报道了北草蜥 (Takydromusseptentrionalis)的头部大小两性异形和食性在个体发育过程中的变化 ,讨论该种两性异形的进化选择压力。北草蜥成体体长无显著的两性差异 ,两性异形主要表现为雄性个体有较大的头部 (头长和头宽 )。头部大小的两性异形在孵出幼体就已经存在。头部随SVL的增长速率在个体发育的不同阶段是不同的 ,并随个体发育的进行变得更为显著。协方差分析显示 ,成年雌体特定SVL的头部大小显著小于成年雄体及两性幼体 ,说明雌体性成熟后通过减缓头部生长来确保躯体的生长 ,以增加繁殖输出。不同季节、不同种群、不同性别及年龄的北草蜥摄入食物的种类及各种食物在摄入食物中所占的比例有一定程度的差别 ,生态位宽度和重叠度因而有一定的差异。没有直接的证据表明两性头部大小的差异能导致两性个体食物生态位的明显分离 ,并有利于缓减两性个体对共同食物资源的竞争。北草蜥成年雌体头部较小 ,主要是由性选择压力决定的。

Eumeces chinensis from a Lishui population consumed a broad range of annelid, molluscan and arthropod invertebrates covering more than 30 families. Food niche breadth was 7.26 for adults and 6.69 for juveniles. Food niche overlap between adults and juveniles was 0.59. Males were the larger sex in E. chinensis. Head size(head length and head width)increased more rapidly with SVL in adult males and juveniles than in adult females. Adult males had larger heads than did adult females juveniles had large...

Eumeces chinensis from a Lishui population consumed a broad range of annelid, molluscan and arthropod invertebrates covering more than 30 families. Food niche breadth was 7.26 for adults and 6.69 for juveniles. Food niche overlap between adults and juveniles was 0.59. Males were the larger sex in E. chinensis. Head size(head length and head width)increased more rapidly with SVL in adult males and juveniles than in adult females. Adult males had larger heads than did adult females juveniles had large size(SVL) specific head length than did adult females. The smallest female that could lay eggs in our sample was 88.1 mm SVL, and all females surpassing this size produced a single clutch per breeding season. Egg laying occurred between 31 May and 28 June. Clutch size and clutch mass varied from 9 to 25 (mean=15 3) and from 5.20 to 18.98g (mean=10.49g), respectively. Relative clutch mass varied from 0.188 to 0.438 (mean=0.327).Clutch size and mass and egg size were positively correlated with female SVL. The increase of egg length was accommodated by an increase of egg width. Egg length, egg width and egg size were independent of clutch size. Females increased reproductive output through increasing clutch size(hence clutch mass)and egg size.

丽水分布的中国石龙子 ( Eumeceschinensis)摄入的食物均为无脊椎动物 ,分别属于环节、软体和节肢动物 ,涉及 3 0余科。成体和幼体的食物生态位宽度分别为 7.2 6和 6.69,成体和幼体的食物生态位重叠度为 0 .59。性成熟雄性个体大于雌体。成雄和幼体的头长和头宽随体长 SVL的增长速率大于成雌 ,成雄头长随 SVL的增长速率显著大于幼体 ,成雌和幼体的头长随 SVL的增长速率无显著差异。成雄头部大于成雌 ,幼体特定 SVL的头长大于成雌。雌性性成熟个体的最小 SVL为 88.1 mm,大于此 SVL的雌体在繁殖期内均产单窝卵 ,产卵起讫时间为 5月 3 1日~ 6月 2 8日。窝卵数为 9~ 2 5(平均 1 5.3 )枚 ,窝卵重为 5.2 0~ 1 8.98(平均 1 0 .4 9) g,相对窝卵重为 0 .1 88~ 0 .4 3 8(平均 0 .3 2 7)。窝卵数和窝卵重与雌体 SVL呈正相关 ,卵长径与短径呈正相关 ,卵长径和短径与窝卵数无显著的相关性 ,卵大小与窝卵数无显著的相关性 ,卵大小与雌体 SVL呈正相关。中国石龙子能通过增加窝卵数及对应的...

丽水分布的中国石龙子 ( Eumeceschinensis)摄入的食物均为无脊椎动物 ,分别属于环节、软体和节肢动物 ,涉及 3 0余科。成体和幼体的食物生态位宽度分别为 7.2 6和 6.69,成体和幼体的食物生态位重叠度为 0 .59。性成熟雄性个体大于雌体。成雄和幼体的头长和头宽随体长 SVL的增长速率大于成雌 ,成雄头长随 SVL的增长速率显著大于幼体 ,成雌和幼体的头长随 SVL的增长速率无显著差异。成雄头部大于成雌 ,幼体特定 SVL的头长大于成雌。雌性性成熟个体的最小 SVL为 88.1 mm,大于此 SVL的雌体在繁殖期内均产单窝卵 ,产卵起讫时间为 5月 3 1日~ 6月 2 8日。窝卵数为 9~ 2 5(平均 1 5.3 )枚 ,窝卵重为 5.2 0~ 1 8.98(平均 1 0 .4 9) g,相对窝卵重为 0 .1 88~ 0 .4 3 8(平均 0 .3 2 7)。窝卵数和窝卵重与雌体 SVL呈正相关 ,卵长径与短径呈正相关 ,卵长径和短径与窝卵数无显著的相关性 ,卵大小与窝卵数无显著的相关性 ,卵大小与雌体 SVL呈正相关。中国石龙子能通过增加窝卵数及对应的窝卵重和卵大小来增加繁殖输出

 
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