Elevational patterns of trait composition and functional diversity of stream macroinvertebrates in the Hengduan Mountains region, Southwest China

Ao, Sicheng; Ye, Lin; Liu, Xinyi; Cai, Qinghua; He, Fengzhi

doi:10.1016/j.ecolind.2022.109558

Cited by 10 publications

(5 citation statements)

References 94 publications

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“…Therefore, the higher the FV, the more advantageous the growth and reproduction of small‐bodied species. A study by Ao et al (2022) concluded that macroinvertebrates may reduce the negative effects of passive drift by enhancing active locomotion in high FV environments. Thus, higher flow velocities may drive populations of strongly swimming species while limiting the survival of weak or non‐swimming species.…”

Section: Discussionmentioning

confidence: 99%

“…This method incorporates the independent analysis of three matrices in order to quantify the relationships between the water environment, community species composition, and functional traits. However, the RLQ method is unable to demonstrate the significance between specific environmental factors and species functional traits, so we must use the fourth‐corner method to test their significance (Ao et al, 2022). Additionally, a ‘trait species abundance’ matrix was made to express the relative proportion of abundance occupied by each trait category and to identify the traits with the highest and lowest proportions of abundance.…”

Section: Methodsmentioning

confidence: 99%

“…Beck et al (2023) observed the effects of nutrient parameters (carbon, nitrogen, and phosphorus concentrations) and hydrological parameters (e.g., water temperature) on the classification and variation of functional traits of macroinvertebrates over long time series, demonstrating that nutrient concentrations were directly related to the rapid development of ‘r‐strategy’ populations in comparison with hydrological parameters. In a study of macroinvertebrate community characteristics in relation to environmental elevation factors in the Hengduan Mountains, Ao et al (2022) found that functional diversity was substantially correlated with elevation factors. Q. Wang et al (2022) used rotifer communities in the Jianghan Plain of the middle Yangtze River reaches to illustrate that land use and water chemistry gradients influence the trait characteristics and functional diversity of rotifer communities.…”

Section: Introductionmentioning

confidence: 99%

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Macroinvertebrates beta diversity and responses of functional traits to water environmental factors in the Qingyijiang River, China

Sun,

Xu,

Chi

et al. 2023

River Research & Apps

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The diversity of functional traits of macroinvertebrates in freshwater ecosystems is one of the current research hotspots in the field of biodiversity. Understanding the functional trait composition of macroinvertebrates and their factors can make the study of watershed beta diversity and river ecological security patterns more effective. Based on two field surveys conducted in September 2020 and July 2021 in the Qingyijiang (QYJ) River, the longest tributary on the south bank of the lower Yangtze River in China, we explored the functional trait compositions of macroinvertebrates and relationships between functional traits and water environment factors using functional diversity indices, beta diversity decomposition, R‐mode linked to Q‐mode, and fourth‐corner analysis methods. Our results showed that water environmental factors affected the distribution of macroinvertebrates traits, and the degree of effect was reflected by the correlation between water environmental factors and the abundance of species traits. Physical factors like flow velocity and water depth were significantly correlated with biological traits of species such as body size and swimming ability. In counterparts, some nutrient indicators significantly affected species ecological traits, such as total phosphorus, ammonia nitrogen, and chemical oxygen demand, which affected species habits and functional feeding group traits. At the same time, we also found a high turnover rate between communities in the river, reflecting the strong dispersal ability of the species. This will be an important guide for the conservation of macroinvertebrates diversity in the river. Local governments can take measures such as conducting quarterly monitoring of macroinvertebrates species; restoring riparian vegetation; limiting hardening of riverbanks and dredging of rivers; controlling wastewater discharges from residential areas on both sides of the river; controlling the use of pesticides in agricultural lands, and so on. These will become the key directions for the conservation of macroinvertebrates diversity.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Macroinvertebrates beta diversity and responses of functional traits to water environmental factors in the Qingyijiang River, China

Sun,

Xu,

Chi

et al. 2023

River Research & Apps

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“…The results showed that the diversity indices (Shannon diversity and Simpson diversity) of the campus road habitat (RH) were higher than those of the scenic habitat (SH). On the one hand, weak disturbance and abundant flowering plants in areas with human activities can result in higher butterfly diversity [101,102]. However, the flora within the urban scenic habitat consists mainly of larger areas of ornamental plants, which are prone to management disturbances from ornamental demands (e.g., branch cutting, re-arrangements, and seasonal change) [82,103,104].…”

Section: Urban/campus Disturbance and Butterfly Diversitymentioning

confidence: 99%

Butterfly Diversity in a Rapidly Developing Urban Area: A Case Study on a University Campus

Fang,

Li,

Pan

et al. 2023

Diversity

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University campuses, as small and isolated areas of rapidly growing urban areas, can provide a unique opportunity for urban biodiversity research, conservation, education, and citizen science by monitoring assemblages of butterflies within their areas. We surveyed butterfly biodiversity in a rapidly developing urban area represented by the Chenggong Campus of Yunnan University in southwestern China using the Pollard walk method. In total, 3625 butterfly individuals belonging to 50 species, 35 genera, and six families were recorded in this survey. The results showed that the families Pieridae and Nymphalidae are the families with the highest species richness on the campus, and that the family Riodinidae contained the fewest species. Pieris rapae was the most common species, and seven species assessed by the IUCN Red List were recorded. Butterfly community structure varied across habitats and seasons on campus, and butterfly diversity was higher in spring and autumn than it was in summer and winter, as well as being higher in road habitats than in scenic habitats. Unavoidable urbanisation activities (construction, green space planning, etc.) may have influenced the composition and diversity of butterflies, and conserving urban butterfly diversity requires a balance between urban planning and habitat diversity. Finally, we encourage universities and research institutions to develop butterfly monitoring platforms for citizen scientists to participate in.

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“…In recent decades, humans have drastically altered the ecological function of streams and rivers, causing a lack in availability of water for irrigation and consumption [9,10]. Water resources and hydrological flows worldwide have been severely affected by environmental impacts, which are intensified by economic development [11,12].…”

Section: Introductionmentioning

confidence: 99%

Prioritizing Water Resources for Conservation in a Land of Water Crisis: The Case of Protected Areas of Iran

Sobhani

Esmaeilzadeh

Sadeghi

et al. 2022

Water

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This study examines the distribution of water resources in Protected Areas in Iran and their priority for conservation. The results show that most of the water resources are located in the north and northwest of Iran due to favorable climatic conditions, topography, ambient temperature, and annual rainfall levels. Conversely, the lowest amount of water resources are located in the center and southeast of the country. Water resources were prioritized based on expert ratings of indicators to determine their value for conservation. The wetland with the highest priority for conservation is the Anzali Wetland (Gilan province), which is an international Ramsar Wetland. Conversely, Namak Lake (Qom province) was deemed the least important due to its geographical location, biological sensitivity, and conservation status. Protected Areas were found to support more surface water resources and provide space for the largest percentage of water resources, demonstrating their great value for protecting water resources in Iran. However, the level of protection of these critical resources, although located in Protected Areas, was shown to be insufficient. Therefore, appropriate planning and integrated management approaches are urgently needed to protect water resources and aquatic habitats in Protected Areas in Iran to address the current water crisis.

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Elevational patterns of trait composition and functional diversity of stream macroinvertebrates in the Hengduan Mountains region, Southwest China

Cited by 10 publications

References 94 publications

Macroinvertebrates beta diversity and responses of functional traits to water environmental factors in the Qingyijiang River, China

Macroinvertebrates beta diversity and responses of functional traits to water environmental factors in the Qingyijiang River, China

Butterfly Diversity in a Rapidly Developing Urban Area: A Case Study on a University Campus

Prioritizing Water Resources for Conservation in a Land of Water Crisis: The Case of Protected Areas of Iran

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