中央民族大学学报:自然科学版
中央民族大學學報:自然科學版
중앙민족대학학보:자연과학판
Journal of The Central University for Nationalities(Natural Sciences Edition)
2011年
3期
65-68
,共4页
十一星瓢虫%内禀增长率%功能反应系数%种群动态模型%数值模拟
十一星瓢蟲%內稟增長率%功能反應繫數%種群動態模型%數值模擬
십일성표충%내품증장솔%공능반응계수%충군동태모형%수치모의
CoccineUa undecimpunctata Linnaeus%Intrinsic rate of increase%coefficient offunctional response%Population dynamics model%numerical simulation
对新疆棉区十一星瓢虫与蚜虫相关调查和实验数据,按照种群动力学理论,建立具有阶段结构的种群动力学模型,探讨外界环境对生物种群之间的影响.结果表明:蚜虫内禀增长率越高,则蚜虫种群增长速度越快,峰值越大且所需的时间也越短.随着棉珠的单株最大容蚜量的增大,棉蚜爆发的时间不断推迟.而温度对瓢虫的转化率和死亡率的影响使得蚜虫爆发的时间和峰值有明显的区别.瓢虫和蚜虫的种群变化具有明显的跟随关系.
對新疆棉區十一星瓢蟲與蚜蟲相關調查和實驗數據,按照種群動力學理論,建立具有階段結構的種群動力學模型,探討外界環境對生物種群之間的影響.結果錶明:蚜蟲內稟增長率越高,則蚜蟲種群增長速度越快,峰值越大且所需的時間也越短.隨著棉珠的單株最大容蚜量的增大,棉蚜爆髮的時間不斷推遲.而溫度對瓢蟲的轉化率和死亡率的影響使得蚜蟲爆髮的時間和峰值有明顯的區彆.瓢蟲和蚜蟲的種群變化具有明顯的跟隨關繫.
대신강면구십일성표충여아충상관조사화실험수거,안조충군동역학이론,건립구유계단결구적충군동역학모형,탐토외계배경대생물충군지간적영향.결과표명:아충내품증장솔월고,칙아충충군증장속도월쾌,봉치월대차소수적시간야월단.수착면주적단주최대용아량적증대,면아폭발적시간불단추지.이온도대표충적전화솔화사망솔적영향사득아충폭발적시간화봉치유명현적구별.표충화아충적충군변화구유명현적근수관계.
According to the population dynamics theory, we applied ecological model for survey andexperimental data about coccinella undecimpunctata linnaeus and aphis gossypii, established a predator-prey population dynamical model with age-structure about them to discuss external environment impact on biotic population. The more intrinsic rate of increase, the more quickly growth, the bigger peak and the shorter time the aphis gossypii will reach. The maximum number of aphis on cotton plant gets bigger, bursting time of aphis delayed constantly. Changing temperature on them differentiate the bursting time and peak of aphis obviously. The coccinella undecimpunctata and the aphis has the obvious follow relations.