摘要
本文对4种主要草原蝗虫各龄蝗蝻及成虫期的食量进行测定。结果表明，蝗虫的食量因种类不同差异很大，同一种类雌虫的日食量远大于雄虫。成虫期日食量有1～2个高峰，均处在交配产卵前的补充营养期。宽须蚁蝗、狭翅雏蝗、邱氏异爪蝗和红翅雏膝蝗的一生食量分别为1292.92、1105.21、2024．49和6814．82mg。根据食量测定将本区草原蝗虫划分为3种食量类型，不同类型在不比例下其混合种群密度的为11．20头／m2时，一年取食牧草鲜重为199．
The present paper deals with the capacity for eaten (CE) nymphs and adults of four species grasshoppers with the foliage area method, CE of different species grasshoppers were great distinet, during supplement nutrition period of forward mating and oviposit CE of every day of adults were one or two peak value. CE of Myrmeleotittex palpalis, Chorthippus dubius,Euchorippus cheui,Angaracris rhodopa was 1992. 92, 1105. 21, 2024. 49, 6814. 49 mg respetively. According to CE four species nymphs and adults, the grassland grasshoppers were divided three CE types, when mixed populations density were 11. 20 h. /m2, the gerbage fresh weigth were grazed 199. 57 kg/ha during an year.
出处
《草地学报》
CAS
CSCD
1995年第3期230-235,共6页
Acta Agrestia Sinica
关键词
草原
蝗虫
食量测定
Grassland
Grasshoppers
Capacity for eaten
