小昆虫本领大(Big ability of small insects).docVIP

小昆虫本领大(Big ability of small insects) 　　thin tie befre u sat a fl r squash a bug: a ne stud sas insets ntribute re than $7 billin (eur47 billin) a ear t the us en 　　thin tie befre u sat a fl r squash a bug: a ne stud sas insets ntribute re than $7 billin (eur47 billin) a ear t the us en 　　and that is a ver nservative estiate, said hn lse, a rnell universit assiate prfessr f entlg h nduted the stud, published in the urrent issue f the urnal bisiene 　　st insets tirelessl perfr funtins that iprve ur envirnent and lives in as that sientists are nl beginning t understand,’’ said lse, h rte the stud ith ae vaughan f the prtland, regn-based xeres siet fr invertebrate nservatin 　　there are re than 1 illin naed inset speies _ and prbabl an equal nuber unidentified _ aing the the st abundant life fr n the planet 　　the stud fused n fur partiular servies that bugs prvide, and hat the st uld be if the insets ere gne: 　　nutritin fr ildlife the researhers led at h uh is spent annuall n bserving r hunting ildlife, and h uh these anials depend n insets fr fd value: $0 billin (eur413 billin) 　　pest ntrl insets ften pre n ther insets the researhers led at the aunt f daage dne b pests, and the lsses that uld result if their predatrs disappeared value: $4 billin (eur37 billin) 　　pllinatin the researhers led at the value f rps that are inset-pllinated (nt inluding rps pllinated b destiated hnebees) value: $3 billin (eur2 billin) 　　dung burial if nt fr dung beetles, anure n grazing land uld attrat re flies and parasites that farers uld have t ntrl als, dung beetles help return nutrients t the sil ithut the, farers uld have t spend re n fertilizer value: $380 illin (eur314 illin) 　　the stud fused nl n ild insets and did nt unt the value f eriall prdued inset-derived prduts, suh as hne and sil 　　larene abrahasn, an entlgist at the state universit f ne r, agreed the $7 billin (eur47 billin) figure is nservative 　　st peple thin f insets and g u the thin abut squites and flies the dn’t realize