作者: W. Threlfall
DOI: 10.1080/00222936308651422
关键词: Nematode larvae 、 Predation 、 Cold spell 、 Ecology 、 Helminths 、 Parasitism 、 Biology 、 Natural enemies 、 Waterfowl 、 Aquatic organisms
摘要: 1. One hundred and twenty three birds of forty six species were examined for helminths during the cold spell January–February, 1963. 2. Some factors responsible mortality in the...