since they「re often forced to pollinate one specific crop, they may not get all the nutrients they need to be healthy.
因为它们经常会被迫向一种单一的作物传粉,所以它们可能无法摄入维持健康所需的所有营养。
more than 80% of the world’s almonds are grown in california and, to pollinate them, the 7,000 or so growers hire about 1.4m of america’s 2.3m commercial hives.
世界80%以上的杏仁树都生长在加利福尼亚,为了给它们授粉,大约7000个种植户租用了全美国230万个商用蜂房中的140万个蜂房。
wild bees would also like to have a variety of flowers to pollinate as we are in need of certain substances to alter our biochemistry for the ascent ahead.
野蜂也希望有不同的花朵来授粉,因为我们需要某些物质来改变我们的生化体以在前方提升。
each year, owner john lerew rents 180 honeybee hives holding millions of bees to pollinate several hundred acres.
果园的经营者约翰·勒鲁(johnlerew)每年都要雇佣180个蜂箱为数百英亩的果树授粉。
the percentage of stigmas with pollen deposition was higher than 76.58% in 3 populations, but the number of pollen grains per stigma was not enough to pollinate the ovules in each ovary.
统计3个居群柱头上落置的花粉量,76.58%以上的柱头接受了花粉,但柱头上的花粉量平均低于胚珠数;
jeff pettis: we ask a lot of them. we move them from crop to crop to pollinate and to feed on things that may not be ideal diet.
杰夫?佩蒂斯:我们追蹤了很多蜜蜂,将它们从一个庄稼地转移到另一个,让它们在不同地里授粉,喂给它们算不上理想的食物。
additionally, similar research published around the same time suggested that the tree was female but appeared to also bear a low level of male-like qualities that would allow it to pollinate itself.
此外,那段时间里发表的有关研究报告也表明,这棵野生的海桐花虽属雌性,但仍含有某些较低程度的雄性特征,从而使自花授粉成为可能。
many garden plants need butterflies to pollinate them.
许多园林植物需要蝴蝶授粉他们。
the number of flowers to pollinate in each level is indicated on the game」s panel.
每一个游戏关中需要授粉的花的数量在游戏面板上预先显示出来。
and without honey bees to pollinate crops, our food supply is in danger.
如果没有这些蜜蜂给农作物授粉,我们的食物供给将会受到威胁。
but in the 1990s, they made it to california, hitchhiking on the pallets used to transport honeybees moved from farm to farm to pollinate crops.
但是到了90年代,它们来到了加利福利亚,它们搭乘运送蜜蜂的蜂箱,漫游于各个农场,也传到了授粉公司。
as a result, timber companies had to grow seed by planting seed orchards, full of elite trees that were supposed to pollinate each other.
所以,林业公司只能靠培植种子的果园来培养种子。果园里种满了种树用以相互受粉。
they contract their bees out to farmers to pollinate their crops.
他们(养蜂人)与农民订有合约给他们的庄稼传受花粉。
bees are known to affect plant evolution by spreading pollen and preferring to pollinate some types of plants over others.
我们知道蜜蜂可以通过传播花粉和对其他植物授粉而影响植物的进化。
farmers rent the bees from bee-keepers to pollinate almond and cherry trees every year.
农民每年都从养蜂人那里租来蜜蜂为杏树和樱桃树授粉。
many kinds of plants, trees and grasses need bees to pollinate them.
很多植物、树木以及草地都需要蜜蜂来进行传播花粉。