查询词典 predation pressure

In general, those investment diversities are the results of interactions of many biological traits to meet embryo and nestling development under the predation pressure and interspecies competition.

总之，如此不同的投资差异是在捕食压力和种间竞争作用下以及亲鸟为满足鸟卵胚胎和雏鸟迅速生长发育的必要条件下，各种生物学特征协调的结果。

Age as one of the internal factors can affect the value of venturous revenue through acting on the checking results of the external factors ( e . g ., predation pressure ), and thereby affect the optimal migrating strategies . therefore , the patterns for dvm vary with the change of the animal ' s age

作为内部状态因子的年龄，因对外部因子识别结果的影响而对风险收益值有较大的影响，从而影响桡足类垂直迁移的最佳策略，导致其迁移的形式随年龄的变化而变化，一般来说，年龄越大的动物垂直迁移的时间越早、幅度越大； 3

Low abundance and species diversity in the pelagic zones was in coincidence with a relatively high-yield fishery in the reservoir, the high predation pressure was a main force in structuring the size distribution of crustacean community.

浮游甲壳类的种类和数量均是以小个体为主，除了营养水平还与水体中的捕食压力紧密相关，鱼类的捕食对于浮游甲壳类群落结构的形成作用显著。

By providing a high abundance of food and shelter, and low predation pressure, mangroves form an ideal habitat for a variety of aquatic animals, during part or all of their life cycles.

可见，食物来源丰富、隐蔽性强、捕食压力低等特点使得红树林成为水生动物的理想栖息地，许多水生动物选择在其中度过部分或完整生活史。

At the same time, we studied population dynamics of seed-eating rodents in the autumn and the following spring. The results showed that, without enclosure protection, most of the seeds were predated due to high predation pressure in the autumn. The emergence rate of seedlings of all the studied species significantly increased under autumn protection, complete protection, and 1-4cm burial under soil covered by litter.

结果表明：秋季鼠类对种子的捕食压力大，使得种子在无保护的情况下很少存活到出苗；而秋季覆网保护和完全保护（覆网一直保留到第二年10月调查时为止）均增加了直播种子的存活和出苗率；将种子埋藏在土壤1-4cm也显著增加直播种了的存活率和出苗率，这与鼠类密度(12%)在秋季显著高于春季(2%)有直接关系。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失