If so , farms and agroforests have lost birds that provide important insect-control , pollination and seed-dispersal services .

如果是，农场和混农林就失去大量提供重要的害虫控制、授粉和播种服务的鸟类。

Now so-called " colony collapse disorder " or ccd continues to kill bees -- who provide some $ 15 billion worth of economic good via pollination and other efforts .

现在，所谓的“蜂群崩坏症候群”或者是简称ccd继续谋杀着蜜蜂这些通过授粉和其他努力提供了大约150亿经济商品的小生物。

As the production of almonds has grown , the prices that the beekeepers can charge for their pollination services have increased .

随着杏仁产量的增加，养蜂人提供授粉服务收取的费用也水涨船高。

Meanwhile , the recent high prices for pollination contracts made it look worthwhile fattening bees up with supplements over the winter . That may help explain why there have been fewer colony collapses .

此外，去年授粉合同的价格走高，使得养蜂人觉得冬季把蜜蜂养的胖些还是值得的，这也有助于解释为何蜂群没有崩溃。

Corn came within pennies of $ 7 a bushel for the first time since september as the heat places stress on stalks during their fragile pollination phase .

玉米价格自去年9月以来首次逼近每蒲式耳7美元，原因是高温给正处于脆弱的授粉期的茎秆造成了影响。