NDLI: Trait-based responses of caddisfly assemblages to the partial channelization of a High-Andean stream

Content Provider	Springer Nature Link
Author	González Trujillo, Juan David
Copyright Year	2015
Abstract	The importance of channel complexity in maintaining biological integrity and ecosystem functioning has been addressed by several researchers. In spite of this, High-Andean streams are being channelized without regard to the effect that channelization might have on stream communities. To attempt to determine these effects, the present study evaluated how caddisfly assemblages respond to channelization in a High-Andean stream. A trait-based approach was used to compare trait-based responses, and the degree of functional homogenization caused by channelization. A total of seven traits are described: (i) ‘Food,’ (ii) ‘Feeding habits,’ (iii) ‘Maximum body size,’ (iv) ‘Adaptation to flow constrains,’ (v) ‘Body flexibility,’ (vi) ‘Case-material,’ and (vii) ‘Case-shape.’ Both the functional structure of the assemblages and the channel complexity of the channelized site were characterized and compared to those of two undisturbed sites. The results suggest that certain genera become dominant as a result of the environmental changes caused by partial channelization. Specifically, assemblages underwent significant specialization in ‘Food,’ ‘Feeding habits,’ and ‘Case-shape,’ and this was linked to the homogenization in mesohabitat type and in hydraulic variability. The trends evident in the trait-based responses may serve as a basis for proposing and assessing strategies to restore the hydromorphological integrity of High-Andean streams.
Starting Page	381
Ending Page	392
Page Count	12
File Format	PDF
ISSN	00188158
Journal	Hydrobiologia
Volume Number	766
Issue Number	1
e-ISSN	15735117
Language	English
Publisher	Springer International Publishing
Publisher Date	2015-09-10
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Channelization High-Andean stream Channel complexity Trait-based approach Trichoptera Caddisfly assemblages Freshwater & Marine Ecology Ecology Zoology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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