Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3354/ab00554 |
Chironomid (Insecta: Diptera) assemblages along an Andean altitudinal gradient | |
Scheibler, Erica E.1; Roig-Junent, Sergio A.1; Cristina Claps, M.2 | |
通讯作者 | Scheibler, Erica E. |
来源期刊 | AQUATIC BIOLOGY
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ISSN | 1864-7790 |
EISSN | 1864-7782 |
出版年 | 2014 |
卷号 | 20期号:2页码:169-184 |
英文摘要 | Chironomidae are an abundant, diverse and ecologically important group common in mountain streams worldwide, but their patterns of distribution have been poorly described for the Andes region in western-central Argentina. Here we examine chironomid assemblages along an altitudinal gradient in the Mendoza River basin to study how spatial and seasonal variations affect the abundance patterns of genera across a gradient of elevation, assess the effects of environmental variables on the chironomid community and to describe its diversity using rarefaction and Shannon’s indices. Three replicate samples and physicochemical parameters were measured seasonally at 11 sites in 2000 and 2001. Twelve genera of chironomid larvae were identified, which belonged to 5 subfamilies. Chironomid composition changed from the headwaters to the outlet and was associated with changes in altitude, water temperature, substrate size and conductivity. We found a pronounced seasonal and spatial variation in the macroinvertebrate community and in physicochemical parameters. Environmental conditions such as elevated conductivity levels and increased river discharge occurring during the summer produced low chironomid density values at the sampling sites. The rarefaction index revealed that the sampling sites with highest richness were LU (middle section of the river) and PO (lower section). However, Shannon’s diversity index indicated that LU had the lowest diversity as a consequence of the dominance of Cricotopus over the other genera found. We attribute the low diversity found in our aquatic system to the aridity of the sampling area, as has been demonstrated in studies of other similar lotic systems in this mountain region. |
英文关键词 | Macrobenthic invertebrates Larvae Mountain river Benthos Spatial gradients Seasonal variations Arid regions Argentina |
类型 | Article |
语种 | 英语 |
国家 | Argentina |
收录类别 | SCI-E |
WOS记录号 | WOS:000334048800008 |
WOS关键词 | CANONICAL CORRESPONDENCE-ANALYSIS ; LAND-USE ; MACROINVERTEBRATE ASSEMBLAGES ; LONGITUDINAL DISTRIBUTION ; RIVER-BASIN ; COMMUNITIES ; STREAMS ; MENDOZA ; FAUNA ; DIVERSITY |
WOS类目 | Marine & Freshwater Biology |
WOS研究方向 | Marine & Freshwater Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/180746 |
作者单位 | 1.CONICET Mendoza, IADIZA, CCT, RA-5500 Mendoza, Argentina; 2.CONICET La Plata, ILPLA, CCT, RA-1900 La Plata, Argentina |
推荐引用方式 GB/T 7714 | Scheibler, Erica E.,Roig-Junent, Sergio A.,Cristina Claps, M.. Chironomid (Insecta: Diptera) assemblages along an Andean altitudinal gradient[J],2014,20(2):169-184. |
APA | Scheibler, Erica E.,Roig-Junent, Sergio A.,&Cristina Claps, M..(2014).Chironomid (Insecta: Diptera) assemblages along an Andean altitudinal gradient.AQUATIC BIOLOGY,20(2),169-184. |
MLA | Scheibler, Erica E.,et al."Chironomid (Insecta: Diptera) assemblages along an Andean altitudinal gradient".AQUATIC BIOLOGY 20.2(2014):169-184. |
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