干旱区生态环境知识资源中心(Arid): Macroinvertebrate community responses to salinity around non-saline-saline confluences in the Draa River basin, Morocco

Arid

DOI	10.1007/s10750-023-05445-7
	Macroinvertebrate community responses to salinity around non-saline-saline confluences in the Draa River basin, Morocco
	Kaczmarek, Nils; Benlasri, Mokhtar; Schaefer, Ralf B.; Aabid, Abdelghani; Nothof, Maren; Lazrak, Khawla; Ghamizi, Mohamed; Berger, Elisabeth
通讯作者	Kaczmarek, N
来源期刊	HYDROBIOLOGIA
ISSN	0018-8158
EISSN	1573-5117
出版年	2024
英文摘要	Freshwater salinization increasingly threatens river ecosystems in arid regions. In situ studies on effects of salinity on freshwater communities are still scarce, especially in largely understudied areas of Africa. To compare macroinvertebrate communities in differing salinity levels, we conducted a confluence-based study in the Draa River basin in Morocco by focusing on two tributaries and their joint downstream sections, in the immediate vicinity of three confluences. Our study revealed that alpha-diversity differed only minimal. Although only around five taxa comprised over 90% of specimens per section, the more saline sections exhibited proportionally more salt-tolerant generalist species. There was lower beta-diversity between the downstream section and each tributary compared to between tributaries, indicating a mixed community after the confluence. The trait profile of the saline El Mellah displayed more resistance and resilience traits to disturbances than the less saline Iriri. Furthermore, low water flow reduced the abundance of sensitive taxa. Overall, we observed minimal differences in macroinvertebrate community composition, due to low gamma-diversity in the basin. However, the confluence-based study design remains valuable for investigating effects of specific stressors on ecosystems by excluding large-scale geographic patterns, as compared sites are close and therefore share the same climate, geology, and altitude.
英文关键词	Freshwater salinization Salinity Climate change Desert rivers Biodiversity River ecology
类型	Article ; Early Access
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001145419200001
WOS关键词	FRESH-WATER ; TOLERANCE ; SALINIZATION ; PATTERNS
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/2XILL650/404077
推荐引用方式 GB/T 7714	Kaczmarek, Nils,Benlasri, Mokhtar,Schaefer, Ralf B.,et al. Macroinvertebrate community responses to salinity around non-saline-saline confluences in the Draa River basin, Morocco[J],2024.
APA	Kaczmarek, Nils.,Benlasri, Mokhtar.,Schaefer, Ralf B..,Aabid, Abdelghani.,Nothof, Maren.,...&Berger, Elisabeth.(2024).Macroinvertebrate community responses to salinity around non-saline-saline confluences in the Draa River basin, Morocco.HYDROBIOLOGIA.
MLA	Kaczmarek, Nils,et al."Macroinvertebrate community responses to salinity around non-saline-saline confluences in the Draa River basin, Morocco".HYDROBIOLOGIA (2024).