seed dispersal

The ecological characteristics of seed dispersal

种子传播的生态学特点

Effects of Alpine birds on Seed Dispersal of Rosa Sericea in the Mid-Brahmaputra River

雅鲁藏布江中游高山鸟类对绢毛蔷薇种子传播的影响

Wind factor determined direction and distance of the seed dispersal .

风对种子的传播的方向和距离起决定性的作用，不同方向上的种子传播距离和强度相差很大。

Humidity and wind had great effects on the seed dispersal .

种子的散布主要受湿度和风的影响，湿度对种子雨的强度起主要作用。

The distance and range of seed dispersal limited by length of stem .

散布距离和范围受植株茎延伸长短的影响，一般散布距离不超过50cm。

The establishment of spatial models for weed seed dispersal

杂草种子空间扩散模型的建立

The mean radius of the seed dispersal was about 130 cm .

种子散布半径平均约130cm。

Effects of bird seed dispersal on diversity of the invaded plants in several hedge types

鸟类传播种子对几种树篱中侵入植物多样性的影响

Mode of seed dispersal and suggestions reducing the spread of transgenes are made here .

种子扩散模式等方面转基因扩散机制的研究进展以及减少转基因扩散的有关措施进行了综述。

Under the experimental conditions , spatial distribution type of weed seed dispersal will change with variation of wind speed .

在实验条件下，杂草种子扩散的空间分布型随风速的变化而变化。

Seed dispersal and seed bank dynamics of the endangered Changium smyrnioides

濒危植物明党参种子散布和种子库动态研究

The fine-scale structure seemed to be influenced by restricted seed dispersal and microenvironment selection .

研究认为有限的种子散播以及微生境选择等因素可能是产生这种小格局的遗传结构的主要原因。

Common pasturage seed dispersal diseases and its precaution

常见牧草种传病害及预防

The seed dispersal pattern is contagious .

种子散布格局为聚集型；

Effect of rodents on seed dispersal and survival of wild apricot ( Prunus armeniaca )

鼠类对山杏（PrunusArmeniaca）种子扩散及存活作用研究（英文）

Biological characteristics ( e.g. seed dispersal limitation ), and environmental heterogeneity may be the important mechanism to shape species spatial pattern in this area .

种子扩散限制等种群生物学特性以及生境异质性影响可能是物种空间格局形成的主要机制。

As the common structure in the wild rice species , awn can help seed dispersal , and prevent birds or animals from eating .

芒作为野生稻中普遍存在的一个结构，可以帮助种子散布，同时防止鸟兽啄食。

In order to make optimal strategies for weed control by simulation and model analysis , we designed and did an indoor experiment of weed seed dispersal by wind .

为通过模型分析和模拟来制定控制杂草的优化策略，我们设计并完成了一个杂草种子风扩散的室内实验。

Seed dispersal of the pioneer shrub Rhodomyrtus tomentosa by frugivorous birds and ants

鸟类和蚂蚁对桃金娘种子传播的初步研究

In genus Pinus , there are approximately 110 species which can be classified into two groups according to the modes of their seed dispersal , i.

松属植物约110种，根据种子传播方式可分为风传播松和动物传播松。

Fruit consumption and seed dispersal of wild banana Musa acuminata by short-nosed fruit bat Cynopterus sphinx

犬蝠对小果野芭蕉的取食及种子传播

Effective dispersal is one essential course for invasive species on their process of invasion , while study on the effectiveness of seed dispersal was often neglected when predicting species invasion .

有效的种子散布是木本植物形成入侵种需要经历的过程之一，但在预测入侵种时却常常被忽略。

Habitat fragmentation is widely recognized as one of the greatest threats for the sustainability of the local ecosystems , and thereby is expected to impact seed dispersal .

生境片断化干扰了植物种子的捕食、扩散作用，被认为是自然生态系统维持面临的重大威胁之一。

According to the data of some plant seed dispersal showed by Howard ( 1991 ) [ 1 ] , the neighborhood function with 25 neighborhood cells and transition function were derived in this article .

根据Howard（1991）提供的某一年生杂草种子的扩散数据，本文导出了一个25邻的邻域细胞函数和相关的转移函数。

The plant which grows in arid area has peculiar structure or way to adapt to the dry environment . In seed dispersal and seed germination , it also has peculiar mechanism adapting to the dry environment .

干旱区的植物，除了具有独特的结构或方式适应干旱环境外，在种子散布和种子萌发方面，也各自具有独特的机制与干旱环境相适应。

Though gravity is the main mechanism of seed dispersal , there were less seeds with short distance dispersal due to high slope ( 30 °) and effects of tree canopy on the seed germination and seedling development .

虽然青冈主要是以重力扩散种子，但由于坡度较大（30°），加上树冠遮荫对种子萌发和幼苗生长的影响，形成以上种子扩散格局。

The proportion of acorns predated by animals including vertebrates and invertebrates amounts up to 78.3 % , indicating that acorn predation by animals is a limiting factor affecting acorn survival before seed dispersal .

脊椎动物和无脊椎动物合计捕食占78.3%。这说明动物对坚果的捕食是影响坚果存活的主要因子。

Moreover , Seed dispersal also relies on animal and waterpower , which make seeds spread far distance , at the same time , the penetration of seed capsule can be improved by the damage of animal 's digestive system , so it can promote the seed germination .

此外，还有动物散布和水力作用的散布，使种子能传播较远的距离，同时种子被采食后，通过消化道的磨损使种皮的通透性提高，促进了种子的萌发。

Predators showed a predation preference to definite seed size in dispersal processes .

动物对种子取食偏爱同种子大小呈现出一定的相关性，随着种子尺寸增加，取食率有线性增加的趋势。

Habitat fragmentation poses a wide spread threat to biodiversity by disrupting seed production and dispersal .

生境片断化扰乱了种子的生产和扩散机制，越来越严重地威胁着生物多样性。