摘要
在稻田生态系统中，非稻田生境和休耕期间稻田生境中的节肢动物群落系统可以称为节肢动物群落的种库，根据生境类型的不同，可以将种库分为许多不同的亚种库，如田埂亚种库、沟渠亚种库、菜地亚种库等等．从捕食性天敌的角度研究了稻田节肢动物种库对其群落重建的作用．结果表明在稻田天敌群落重建期间（水稻移栽后１个月之内），稻田的优势种天敌如食虫沟瘤蛛、水狼蛛等均来自种库，它们由种库向稻田群落迁居的过程是一个循序渐进的动态过程．其中，田埂作为一个主要的亚种库为它们迁移入田起到了重要的“桥梁”作用．
The effects of species pool on community reestablishment were studied from a facet of predatory arthropod community. The results showed that the species pool was a resource of predators, which could contribute colonists to the rice field community during its reestablishing period. The distribution of the dominant predators, Ummeliata insecticeps , from species pool to rice field at the reestablishing period presented a step by step dynamic processes. In these processes, the field bund was not only an important component of species pool, but also a bridge for the predatory colonists from other sub species pools to pass through into rice field.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
1998年第5期70-73,共4页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
国家自然科学基金
广东省自然科学基金
关键词
捕食性节肢动物
种库
群落重建
稻田
生物防治
Predatory arthropods, species pool, community reestablishment, Ummeliata insecticeps
