Role of grazing cattle on seed dispersal of plants in a hill pasture 1 . Effect of sward structure on grass seed ingestion by cattle

摘要：

Seed dispersal by defecation of grazing herbivores is one of the significant factors in vegetational change ( e.g., Janzen, 1984 ; Archer and Pyke, 1991 ).It is well known that the seeds of certain plant species are ingested by grazing herbivores and disseminated through the digestive tract.Recent studies conducted in Japanese hill pastures have shown that grazing cattle dispersed majority of seeds of monocotyledons such as Carex albata ( Watanabe et al., 2000 ; Obara et al., 2005 ).In this paper,we examined factors affecting seed ingestion by cattle using a sward‐based measurement to learn timing of seed ingestion by cattle relative to seed maturity.

关键词： germinability grazing cattle seed dispersal seed ingestion sward structure

作者: M.Obara S.Ogura T.Shishido K.Sugawara

作者单位: Graduate School of Agricultural Science,Tohoku University,KaWAtabi,Naruko-onsen,Osaki,989-6711 Japan

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）