查询词典 predation

Daphnia then disappeared due to a food shortage and 0+largemouth bass predation.

溞类随后消失由于食物短缺和幼龄鱼捕食。

Probably became extinct as a result of disease and predation, as well as habitat loss, compounded by the exceptional strength of Hurricane Iwa - although by the time of this hurricane it was too late to save the species.

灭绝原因可能由于疾病和被捕食，也可能是栖息地的消失，加上Iwa飓风的破坏作用，尽管那个时候对于保护这个种已经太晚了。

Exactly why these limbless reptile s take to the air in the first place is not known, but their fellow gliders do so to travel more efficiently, pursue prey or evade predation

这些无翼爬行动物一开始为什么要飞还不得而知，不过其他动物滑行无非是为了行动更省力，捕捉猎物或逃避追捕。

Exactly why these limbless reptiles take to the air in the first place is not known, but their fellow gliders do so to travel more efficiently, pursue prey or evade predation.

这些无翼爬行动物一开始为什么要飞还不得而知，不过其他动物滑行无非是为了行动更省力，捕捉猎物或逃避追捕。

Exactly why these limbless reptiles take to the air in the first place is not known, but their fellow gliders do so to travel more efficiently, pursue prey or evade predation .

这些无翼爬行动物一开始为什么要飞还不得而知，不过其他动物滑行无非是为了行动更省力，捕捉猎物或逃避追捕。注意，注意力集中

The successful rates of Passeriformes reproductive are generally low. The factors include predation of predators, harsh climate, and reusable resources and so on.

影响鸟类繁殖成功的因素很多，包括天敌掠夺、恶劣气候、资源可利用性…等，天敌掠食是小型燕雀目鸟类繁殖成功率偏低的主要原因。

Nest predation is one of the most sever threats to the breeding success of passerine birds.

鸟巢天敌是威胁鸟类能否繁殖成功的重要因素之一。

Effects of Nest Type, Nest Predation and Clutch Size on Growth Period for Passerine Birds in Alpine Meadow

经济较发达地区农村空巢老人的养老问题？？以浙江农村为例

Based on these observations, we hypothesised that (1) the length of the breeding season, food resources and predation are critical for the evolution of passerine reproductive patterns in alpine meadows;(2) that alpine meadow passerines used single-investment and accumulative-investment strategies;(3) that the typical clutch size was actually the most efficient for reproductive purposes;(4) and that the transition from neonate to fledgling passerines is a relatively fixed process as compensatory growth does not appear to occur;(5) and that growth period is volatile.

高寒草甸雀形目鸟类受适合繁殖季节长度、食物资源和捕食压力的影响，或选择逐步投资对策，或选择一次投资对策；每个种群的常见窝卵数就是最适窝卵数；雏鸟的发育模式相对固定，不存在补偿性生长，但是生长期长度是可变化的。

It is involved in many aspects of organic matter decomposition, partial regulation of microbial activities, nutrient cycles and crumbly structure. Depending on their diet (saprophagous, phytophagous or predation), soil fauna is closely linked both to each other and to microorganisms, plants and soil.

本论文试图以土壤动物作为生物指标来评价土壤重金属污染，通过对重金属污染区(以浙江省富阳环山乡受污染的农田为例)土壤动物群落结构的调查和在室内设置一定的污染浓度梯度处理的盆栽试验两种方式研究了重金属污染对土壤动物群落的影响，主要结论如下： 1。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。