5.The taxonomist sometimes overlooks whole species in favour of those groups currently under study, while the ecologist often cotlects only a limited number of specimens of each species, thus reducing their value for taxonomic investigations.
分类学家们有时会忽略整个
种而选择当时正在研究的那些
种群,而生态学家常常只收集每个
种有限的几个样本,因此就降低了分类研究的价值。