卡罗莱纳长尾鹦鹉是美国本土的唯一一种本地鹦鹉，曾经结伴组成庞大的鸟群喧闹着飞过，以农作物为食。
These Carolina parakeets, the only parrot native to the continental United States, once flew in large noisy flocks, feeding on agricultural crops.
这可能与本地种蚯蚓数量的减少从而降低了其对土壤微生物的取食有关。
We guess that fewer microbes were eaten by native earthworm because density and biomass of this earthworm decreased in the same trement plots.
这可能与本地种蚯蚓数量的减少从而降低了其对土壤微生物的取食有关。
We guess that fewer microbes were eaten by native earthworm because density and biomass of this earthworm decreased in the same trement plots.
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