Despite the thousands of Bigfoot that must exist for a breeding population, not a single body has been found.
尽管目击者口中的“大脚”数以千计、足以构成一个繁殖种群，人们却连一具尸体也未曾找到。
And by seeing where these sequences now sit, scientists can get a sense of the size of the breeding population back then.
位置固定的转位子第一次出现是在一百万年前，通过观察现在这些序列的排列顺序，科学家们就可以了解到那个时代的人口数量。
The spawning times, absolute fecundities, age structures of breeding population, and spawning types of fish were also studied.
测定分析鱼类生殖力、产卵期、繁殖群体的年龄结构及产卵类型。
The centre is part of the Chengdu Research Base which holds around 108 bears in captivity, making for the largest artificial breeding population of pandas in the world.
该基地隶属于成都研究基地，成都研究基地拥有圈养大熊猫108只，是世界上最大的大熊猫人工繁育中心。
Two inbred lines of maize, ZA5716 and ZA6192, with high combining ability and disease resistance, were obtained from a breeding population improved by recurrent selection.
从轮回选择法改良的玉米育种群体中，选育出了配合力高、抗病性强的玉米新自交系za5716和ZA6192。
Breeding groups are being used to control inbreeding in a breeding population and to effectively achieve maximum genetic gains in some tree improvement programs of the United States.
在美国的一些林木育种项目中，育种群已用来控制种子园的近交、捕获最大的遗传增益的有效措施。
One particular transposon first appeared about a million years ago. And by seeing where these sequences now sit, scientists can get a sense of the size of the breeding population back then.
位置固定的转位子第一次出现是在一百万年前，通过观察现在这些序列的排列顺序，科学家们就可以了解到那个时代的人口数量。
It is not clear whether the breeding population around the Zhoushan islands mixes with the one on Mazu. Nor is the birds' wintering range known-possibly the Philippines, Borneo and perhaps Myanmar.
目前舟山群岛和妈祖所有繁殖鸟类的总数还不明确，鸟类过冬的范围也不明确——可能是菲律宾，婆罗洲或者是缅甸。
Now just a few hundred European mink remain-making them Europe's most endangered mammal. to save the mink, scientists are establishing a breeding population of them on an island in the BALTIC SEA.
目前只有几百只欧洲鼬存活——这使它们成为欧洲最濒于灭绝的哺乳动物。
Wild tigers in India are under increasing threats from poachers, and seven of the country's 28 reserves can barely sustain a breeding population, according to a Sunday article in the Miami Herald.
印度的老虎同样遭到了狩猎者的威胁，这个国家的28个野生老虎保护区中有 8个认为自己没有能力延续所属范围内野生老虎的品种。
The study looked at breeding behaviour in an isolated population of song sparrows living in grasslands on the island of Mandarte, off the coast of Canada.
这一注视繁殖行为的研究在一个隔离的唱歌麻雀群中进行,这一麻雀群生活在远离加拿大海岸的蒙大特岛的草原上.
He will be paired for breeding, perhaps adding to the population of one of the world's most beloved and endangered animals.
它将被配对饲养，也许会为这个世界上最受人喜爱但也最濒危的物种家族添丁进口。
But with a population of only 30, and only two breeding pairs in 2008, its fate hangs by a thread.
然而仅存30只，且只有两对在2008年配对繁殖，凤头燕欧又真是命悬一线。
That number is smaller than current figures for the effective population size (or number of breeding individuals) for endangered species such as chimpanzees (21, 000) and gorillas (25, 000).
当时的人数甚至不及现在濒临灭绝的黑猩猩（21000头）和大猩猩（25000头）的有效种群大小（即能生育的个体数量）。
As the farmland is limited and the population continuously increases at present, the object in plant breeding is to breed crop varieties with relatively drought tolerance.
在耕地有限，人口不断增长的今天，培育耐旱能力相对提高的植物品种已成为植物分子育种工程的目标之一。
Since gaining legal protection in the 1970s, Steller sea lions in British Columbian and neighboring waters have tripled in population to about 30, 000 during the summer breeding season.
自上世纪七十年代进行立法保护以来，不列颠哥伦比亚省及其邻近海域中的斯特勒海狮数量翻了两番，在夏季繁殖期甚至会多达30000只。
The giant pandas' naturally slow breeding rate prevents a population from recovering quickly from illegal hunting, habitat loss, and other human-related causes of mortality.
大熊猫自然繁殖的比率很低限制了种群的快速恢复，来自非法猎取，产地损失，还有其他人为因素影响死亡率。
These results would be of help for the artificial breeding and population conservation for the Macropus.
这一研究结果对大袋鼠的人工繁育和种群保护有一定的指导意义。
The population breeding was regulated by the quantitative relationships between female and male in the woodland.
林地鼢鼠种群是通过雌雄鼠的数量关系来调节种群繁殖。
A grey recurrent population improvement of wheat was suggested by combining the grey breeding method with the wheat dwarf male-sterile technology.
将灰色育种方法与矮败群体改良方法相结合，提出了小麦灰色轮回群体改良方法。
The breeding capability of males and the population number of Rhombomys opimus are influenced by the social stress.
雄性繁殖能力受社群压力的影响，种群数量也随之受到影响。
The key to save the wild Chinese Alligator is to know the breeding mechanism of the remaining wild population and its survival strategy under such a serious human pressure.
因此，对野生扬子鳄种群繁殖机理和长期存在于高强度人为活动的压力之下的生存对策的研究，是恢复野生扬子鳄种群数量，使其免遭灭绝的关键。
Two population breeding methods of "micro-law of insect cage" and "whole-petri dish" were designed and evaluated, more convenient and practical of the latter in the practical operation.
设计并评价了种群繁殖和实验过程中的两种接虫方法：“微型接虫笼法”和“整株一培养皿”结合法，后者在实际操作中更加便捷和实用；
Objective By investigating population density and breeding characters of Dengue vectors in Fuzhou Changle International Airport to prevent and control Dengue fever.
目的调查长乐国际机场登革热媒介种群密度，预防和控制登革热暴发流行。
The giant pandas ' naturally slow breeding rate prevents a population from recovering quickly from illegal hunting, habitat loss, and other human - related causes of mortality.
大熊猫自然繁殖的比率很低限制了种群的快速恢复，来自非法猎取，产地损失，还有其他人为因素影响死亡率。
With cultivated land being more and more limited, and the population continuously increasing, breeding relatively high salt resisting plant is one of targets in plant molecule breeding project.
在耕地有限，人口不断增长的今天，培育耐盐能力相对提高的植物品种已成为植物分子育种工程的目标之一。
The aim of breeding is to obtain continuous genetic advance whilst maintaining the genetic variation and limiting the inbreeding level of the population.
育种工作的目的在于保持群体遗传变异、控制群体近交的同时，获得持续的遗传进展。
A breeding programme must provide for a continual infusion of new genetic material into the population to avoid in-breeding.
一项育种计划，必须为把新的遗传种质不断地渗进育种种群提供条件，以避免近交。
A breeding programme must provide for a continual infusion of new genetic material into the population to avoid in-breeding.
一项育种计划，必须为把新的遗传种质不断地渗进育种种群提供条件，以避免近交。
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