Number of species and individuals species diversity index and evenness and proportion of wader birds decreased from bay-mouth to bay-head and was lowest in midbay .

其中湾口的水鸟物种数、个体数量、多样性指数、均匀度指数以及 涉禽所占比例均为最高，湾底次之，湾中部最低。

Thank you for recording the details of the flagged wader that was recently sighted .

感谢您最近对 您 观测到的 环志的详细记录。

The hand line may be a useful aid even if the wader is belayed as below .

扶手绳甚至在 渡溪 者处于被确保状态下，都是个好用的帮手。

Those were slow silent often turbid ; flowing over beds of mud into which the incautious wader might sink and vanish unawares .

布莱克莫尔的河流流得缓慢、沉静、常常是浑浊的；它们 从 积满泥淖的河床 上流过去，不明情形而涉水 过河的人，稍不注意就会陷进泥淖里。