Eyo Joseph Effiong, Ikechukwu Eugene Onah, Ubachukwu Patience Obiageli, Ivoke Njoku, Ekeh Felicia Nkechi
Department of Zoology and Environmental Biology, University of Nigeria, Nsukka, Enugu State, Nigeria.
Ann Agric Environ Med. 2014;21(4):697-700. doi: 10.5604/12321966.1129917.
The effect of climatic conditions on the biting density and relative abundance of Simulium damnosum complex at Adani, Nigeria, from August 2010-January 2011 was investigated.
The classical method of collecting blackflies for a period of 11 hours using human attractants was employed in the study. Monthly climatic data, such as rainfall, relative humidity and temperature were collected for the period of study.
Rainfall, relative humidity, temperature, harmattan (cold, dry wind) and deforestation were observed to affect the biting density and relative abundance of blackflies at the site. A total of 548 female adult blackflies were collected. The biting density of the flies ranged from 0.5 Flies/Man/Hour (FMH) in December to 5.5 FMH in January. The relative abundance of the flies ranged from 21 in December to 243 in January. Regression analysis showed that temperature and relative humidity had a positive correlation with relative abundance of Simulium damnosum complex (y=-0.0006x+5.593, r=0.0519) and (y=-0.1213x+78.794, r=0.505), respectively.
The risk of getting infected with Onchocerca volvulus increased during the dry season with its associated weather conditions.
调查了2010年8月至2011年1月期间气候条件对尼日利亚阿达尼地区丑恶蚋复合体叮咬密度和相对丰度的影响。
本研究采用使用人体引诱剂在11小时内收集蚋的经典方法。收集了研究期间的月气候数据，如降雨量、相对湿度和温度。
观察到降雨、相对湿度、温度、哈马丹风（寒冷干燥的风）和森林砍伐会影响该地点蚋的叮咬密度和相对丰度。共收集到548只成年雌性蚋。蚋的叮咬密度从12月的0.5只/人/小时（FMH）到1月的5.5只/人/小时不等。蚋的相对丰度从12月的21只到1月的243只不等。回归分析表明，温度和相对湿度分别与丑恶蚋复合体的相对丰度呈正相关（y = -0.0006x + 5.593，r = 0.0519）和（y = -0.1213x + 78.794，r = 0.505）。
在旱季及其相关天气条件下，感染盘尾丝虫的风险增加。
