Zoophytophagy in the plantbug Nesidiocoris tenuis

被引:79
作者
Sanchez, Juan Antonio [1 ]
机构
[1] Inst Murciano Invest & Desarrolo Agrario & Alimen, Dept Biotecnol & Protecc Cultivos, Murcia, Spain
关键词
heteroptera; humidity; omnivore; plant feeding; population dynamics; predatory mirid; temperature; tomato; whitefly;
D O I
10.1111/j.1461-9563.2007.00357.x
中图分类号
Q96 [昆虫学];
学科分类号
摘要
1 The zoophytophagy of Nesidiocoris tenuis (Reuter) (Heteroptera: Miridae) was characterized in relation to prey availability and environmental factors by: (i) monitoring its population dynamics in tomato greenhouses; (ii) analysis of the influence of N. tenuis and whitefly density, temperature and humidity on the intensity of N. tenuis plant feeding; and (iii) laboratory assays under controlled conditions to determine the intensity of plant feeding in relation to prey availability, temperature and humidity. 2 A negative relationship was found between plant feeding and predated whiteflies in tomato greenhouses. Plant feeding was directly related to N. tenuis density and temperature and inversely related to whitefly density. The significance of prey availability and temperature was corroborated in laboratory assays. The intensification of plant feeding at low prey density indicates switching from zoophagy to phytophagy as prey become scarce. 3 Nesidiocoris tenuis showed a typical predator dynamic in relation to variance in prey density. Populations increased after whitefly outbreaks and decreased after whitefly had been depleted. The rapid decrease of N. tenuis populations after whitefly decreased, however, suggests that plants are a poorer nutrient source than whitefly for this species.
引用
收藏
页码:75 / 80
页数:6
相关论文
共 25 条
[1]  
Alomar O., 1996, Zoophytophagous Heteroptera: implications for life history and integrated pest management., P155
[2]  
Calvo J., 2004, HORTICULTURA INT, V44, P20
[3]  
Carnero A., 2000, IOBC WPRS B, V23, P259
[4]  
Castane C., 2003, Bulletin OILB/SROP, V26, P135
[5]  
Chappell MA, 2000, J EXP BIOL, V203, P3809
[6]   Respiratory water loss in insects [J].
Chown, SL .
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY, 2002, 133 (03) :791-804
[7]  
COHEN AC, 1983, SOUTHWEST ENTOMOL, V8, P61
[8]   FEEDING ADAPTATIONS OF SOME PREDACEOUS HEMIPTERA [J].
COHEN, AC .
ANNALS OF THE ENTOMOLOGICAL SOCIETY OF AMERICA, 1990, 83 (06) :1215-1223
[9]  
Cohen Allen C., 1996, P1
[10]  
Coll Moshe, 1998, P89