Environmental effects on insects and their population dynamics
Environmental effects on insects and their population dynamics
复制标题
环境对昆虫及其种群动态的影响
DOI：
--
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
M. Sagheer
中科院分区：
文献类型：
--
作者：
A. Khaliq;M. Javed;M. Sohail;M. Sagheer
昆虫是一种适应性强、繁殖力高、生活史短的生物。由于人类活动对农业生态系统的干扰和全球气候变化对昆虫生态系统的干扰。自然生境的侵蚀、城市化、污染和农业生态系统中化学品的使用使环境变化的强度成倍增加。非生物（温度，湿度，光照）和生物（主机，植物生物多样性，拥挤和饮食）的压力显着影响昆虫及其种群动态。昆虫对这些因素的反应是延长它们的变态阶段、存活和繁殖速度。昆虫的黑色素化、溶菌酶水平和酚氧化酶（PO）等免疫反应改变了昆虫对食物、气体和化学物质等不同因素的生理和形态行为。
Insects are powerful and rapid adaptive organisms with high fecundity rate and short life cycle. Due to human interruption in agro-ecosystem and global climatic variations are disturbing the insect ecosystem. Erosion of natural habitats, urbanization, pollution and use of chemicals in agroecosystem manifold the intensity of environmental variations. Both a-biotic (temperature, humidity, light) and biotic (host, vegetative biodiversity, crowding and diets) stresses significantly influence the insects and their population dynamics. In response to these factors insect may prolong their metamorphic stages, survival and rate of multiplication. Insect’s immune responses as melanization, lysozyme level and phenoloxidase (PO) modify the physiology and morphological behavior against different factors like diets, gases and chemicals.