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生境分离
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     Isolate Rare Actinomycetes From Entironment of Torrid Zone
     热带不同生境稀有放线菌分离
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     Separation of Nitrochlorobenzenes
     硝基氯苯的分离
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     Thirdly, they separated.
     三、分离
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     ISOLATION IDENTIFICATION AND HABITAT CONDITIONS OF Fe-Mn OXIDIZED SHEATHED BACTERIA
     铁-锰氧化鞘细菌的生境条件及分离鉴定
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     Exploration of the paramecium's habitat
     草履虫生境的探究
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  habitat segregation
Sexual segregation is a commonly observed phenomenon in dimorphic ungulates, which has been categorised into two distinct components: social segregation and habitat segregation.
      
The first two instars were more active under dark conditions than under light conditions, suggesting an orthokinetic mechanism for habitat segregation.
      
However all species considerably overlap in their distribution along the axes of four major interrelated abiotic gradients, thus excluding the possibility that habitat segregation is determined by larval settlement preferences.
      
This mechanism for co-existence and habitat segregation in tropical Cerithiidae may also be instrumental in maintaining the high species diversity of other tropical benthic communities.
      
These results suggested that habitat segregation between H.
      
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  habitat separation
In relation to these findings, habitat separation of planktonic Acartia populations and the role of dormant eggs during their seasonal absence in the plankton of Southern California coastal waters are discussed.
      
Intraspecific competition together with differential predation, prey size, social interactions, size-related thermal requirements, and morphological constraints on movement are often implicated in this ontogenetic habitat separation.
      
The habitat separation in sympatry might therefore be one of the mechanisms allowing syntopic coexistence of both species.
      
Growth and habitat separation in eight cohorts of three species of cyprinids in a subalpine lake
      
Whereas predation may play a role in habitat separation, diffuse competition for food resources during the approximately four-month transition season probably is the principal factor yielding patterns of diet specialization.
      
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To search for multi-extreme-value points is a new direction in genetic algorithm research field. Based on Guo Tao~() algorithm, this paper introduces gradient operator, single-parent reproduction, small habitat separation and a mixed evolutionary algorithm which combines global and local searches. Examples show that this algorithm can quickly find all global optimum solutions for multi-modal functions.

搜索多极值点问题是遗传算法研究领域内的一个新的方向,本文在郭涛算法[1]的基础上引入梯度算子、单亲繁殖、小生境分离和全局与局部演化相结合的混合演化算法.实例测试表明,该算法能够快速求出多峰函数的所有全局最优解,得到令人满意的结果.

Leptodactylus labrosus is a terrestrial sit-and-wait predator; its diet includes ground-level, fossorial, and flying insects, and ants numerically predominate. Bothrops asper is recorded as a predator of L. labrosus. L. labrosus lives mainly in deciduous and semi-deciduous forests, where it is restricted to wet microhabitats, and occasionally in evergreen forests. L. labrosus inhabits northern, central, and southern regions of western coastal Ecuador and northern and central western coastal Peru up to 700 m,...

Leptodactylus labrosus is a terrestrial sit-and-wait predator; its diet includes ground-level, fossorial, and flying insects, and ants numerically predominate. Bothrops asper is recorded as a predator of L. labrosus. L. labrosus lives mainly in deciduous and semi-deciduous forests, where it is restricted to wet microhabitats, and occasionally in evergreen forests. L. labrosus inhabits northern, central, and southern regions of western coastal Ecuador and northern and central western coastal Peru up to 700 m, and into the dry interandean valleys of southern Ecuador and northern Peru up to 1 300 m. Its distribution encompasses moistly seasonally dry forest in coastal Ecuador and Peru. It also occupies moister areas towards the slopes of the Andes where it is sympatric with three other congeneric species, but at sites of sympatry the species show habitat segregation. The distribution pattern of L. labrosus is shared by several other range-restricted amphibians corresponding to the Tumbesian region, which should be recognized as an endemic Amphibian area. The zone between the Choco and Tumbesian regions, where L. labrosus gets in sympatry with other Leptodactylus species, possess ecological and climatic characteristics that have shaped a unique fauna, including several endemic taxa; and it should be recognized as the west Ecuadorian endemic region.

Leptodactylus labrosus属于陆地坐-等型的捕食者,其食物包括地表的、掘地的及飞行昆虫,其中蚂蚁数量最多。曾有报道Bothrops asper是其天敌。L.labrosus主要栖息于落叶及半落叶林潮湿的环境中,偶尔也栖息于常绿林中。L.labrosus分布于厄瓜多尔西海岸的北部、中部、南部;秘鲁西海岸的北部、中部,分布地海拔可达600 m;及位于南厄瓜多尔和北秘鲁海拔高达1 300 m的干燥的安第斯山谷。其分布地区包括了厄瓜多尔和秘鲁海岸的潮湿的、季节性干燥的森林。在安第斯山脉斜坡的潮湿地带,L.labrosus与其他3种细趾蟾科的分布区重叠,但表现为生境分离。其分布特征与其他几种活动区域受限的两栖动物相似。Tumbesian地区应被认为是地方特有两栖动物的分布区。Choco和Tumbesian的中间区域是L.labrosus与其他细趾蟾科的生境分布重叠区,其生态及气候特征使其形成了独特的动物区系,包括几种地方特有物种。因此该地区应被划为西厄瓜多尔地方种区域。

 
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