Effects of different types of land-use on taxonomic and functional diversity of benthic macroinvertebrates in a subtropical river network
File version
Author(s)
Li, Z
Castro, DMP
Tan, X
Jiang, X
Meng, X
Ge, Y
Xie, Z
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
Size
File type(s)
Location
License
Abstract
Expansion of agricultural and urban areas and intensification of catchment land-use increasingly affect different facets of biodiversity in aquatic communities. However, understanding the responses of taxonomic and functional diversity to specific conversion from natural forest to agriculture and urban land-use remains limited, especially in subtropical streams where biomonitoring programs and using functional traits are still under development. Here, we conducted research in a subtropical stream network to examine the responses of macroinvertebrate taxonomic and functional diversity to different types of land-use in central China. Our results showed that medium body size, univoltine, gill respiration, and slow seasonal development were much higher in natural forest sites, while certain traits related to strong resilience and resistance (e.g., small body size, fast seasonal development, bi-or multivoltine, abundant occurrence in drift, sprawler) dominated in high-intensity agriculture and urbanization sites. We further found that land-use compromised water quality (e.g., increases in total phosphate, conductivity and water temperature) and habitat conditions (e.g., high proportion of sand and silt, gravel, and channel width) accounted for the changes in trait composition based on a combination of RLQ and fourth-corner analysis. Moreover, natural forest sites presented relatively high values of functional richness than other land-use, demonstrating the importance of natural forest maintenance to promote high levels of functional diversity. However, taxonomic diversity indexes showed higher sensitivity to distinguish different types of land-use compared to functional diversity measures. Even so, given that certain trait categories showed significant relationships with specific local environmental stressors, trait-based approaches can provide reliable evidence to diagnose the cause of impairment and complement the results of the taxonomic-based approaches. Our findings support the idea that taxonomic and functional approaches should be integrated in river restoration and land-use management.
Journal Title
Environmental Science and Pollution Research
Conference Title
Book Title
Edition
Volume
28
Issue
32
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement
Item Access Status
Note
Access the data
Related item(s)
Subject
Biological sciences
Chemical sciences
Environmental sciences
Benthic macroinvertebrates;
Functional diversity;
Land-use types;
Subtropical river network
Taxonomic diversity;
Persistent link to this record
Citation
Liu, Z; Li, Z; Castro, DMP; Tan, X; Jiang, X; Meng, X; Ge, Y; Xie, Z, Effects of different types of land-use on taxonomic and functional diversity of benthic macroinvertebrates in a subtropical river network, Environmental Science and Pollution Research, 2021, 28 (32), pp. 44339-44353