The effect of human activities on benthic macroinvertebrate diversity in tributary lagoons surrounding Lake Biwa

Okano, Jun-ichi; Shibata, Jun-ya; Sakai, Yuka; Yamaguchi, Mana; Ohishi, Mamiko; Goda, Yukiko; Nakano, Susumu; Okuda, Noboru

doi:10.1007/s10201-017-0530-2

Cited by 14 publications

(18 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Overall average dissimilarity = 34,32. in Lake Obazuwa located in the area with the highest human activity (Benin City). These results corroborated several studies that have indicated that human activities have a significant impact on Macroinvertebrates diversity due to modification or habitats destruction (Okano et al, 2018;Amoatey and Baawain, 2019). Among the organisms collected from the lake, Ephemeroptera was the most abundant (19.85%) and sampled in all stations.…”

Section: Discussionsupporting

confidence: 90%

Untitled

2021

Int. J. Res. Environ. Stud.

View full text Add to dashboard Cite

Lake Ehuikro is used to supply drinking water to Bongouanou City. Some human activities around the lake are established and may have an effect on water quality and aquatic life. This study was conducted to describe for the first time the diversity and the structure of macro-invertebrate communities in this area. Physico-chemical parameters were measured monthly in three sampling sites and the benthic Macroinvertebrates was collected using a Van Veen grab on a total area of 0.5 m 2 per sample. Principal component analysis showed a clear pattern of separation of these three sampling sites according to the substrate type: gravelmud, sand-gravel and sand in E1, E2 and E3 stations, respectively. A total of 3285 aquatic Macroinvertebrates belonging 52 taxa, were recorded and the most dominant taxa were Baetis sp. (19.85%) and Tubifex sp. (11.57%). Multivariate statistical analysis revealed significant differences between the community structure of E1 and E2 samples: the first sample was dominated by 7 taxa including Tubifex sp. and Melanoides tuberculata while the second by 13 species. The Shannon diversity indices showed high value in lake (3.10) reflecting moderately polluted conditions. Significant correlations between Tubifex sp., Biomphalaria pfeifferi, M. tuberculata and depth, transparency, substrate texture and macrophyte (MAC) were found. The present study revealed that the benthic fauna of the lake Ehuikro dominated by pollution-sensitive taxa. These findings provide valuable information that can be used to establish biotic indices to monitor the human disturbance effect on water quality of Lake Ehuikro.

show abstract

Section: Discussionsupporting

confidence: 90%

Untitled

2021

Int. J. Res. Environ. Stud.

View full text Add to dashboard Cite

show abstract

“…Conversely, if the present results can be generalized to other systems, it should be possible to explain community diversity reasonably well by a nonlinear regression using temperature and total abundance. Indeed, this expectation was verified by analyzing datasets from diverse taxa and ecosystems (Masuda 2008;Sunagawa et al 2015;Okazaki et al 2017;Bahram et al 2018;Okano et al 2018;Sakamoto et al 2018) that included information about diversity, temperature and an index of total species abundance or biomass. The simple, nonlinear regressions between diversity, temperature and abundance explained community diversity surprisingly well for the five aquatic data sets ( Figure S9 and Supporting Information; adjusted 2 = 0.453 -0.792), supporting the generality of the interaction capacity hypothesis.…”

Section: Predicting Diversity Of a Natural Ecological Communitymentioning

confidence: 96%

“…Data analyzed in the meta-analysis were collected from the publications or official websites [Sunagawa et al (2015); (Sakamoto et al 2018), or provided by the authors of the original publications (Masuda 2008;Okazaki et al 2017;Bahram et al 2018;Okano et al 2018). Therefore, raw data for the meta-analysis are available from the original publications, or upon reasonable requests to corresponding authors of the original publications.…”

Section: Meta-analysis Of Biodiversity Temperature and Abundancementioning

confidence: 99%

“…To validate my hypothesis that the diversity is determined by interaction capacity and connectance, and that they are influenced by temperature and total organism abundance, I compiled published data from various ecosystems. The collected data include two global datasets and four local datasets collected in Japan: (1) global ocean microbes (Sunagawa et al 2015), (2) global soil microbes (Bahram et al 2018), (3) fish from a coastal ecosystem (Masuda 2008), (4) prokaryotes from freshwater lake ecosystems (Okazaki et al 2017), (5) zooplankton from a freshwater lake ecosystem (Sakamoto et al 2018) and (6) benthic macroinvertebrates from freshwater tributary lagoon ecosystems (Okano et al 2018). Because the influences of temperature and total species abundance/biomass on community diversity (or interaction capacity and connectance) are likely to be nonlinear, I adopted a general additive model (Wood 2004) as follows:…”

Section: Meta-analysis Of Biodiversity Temperature and Abundancementioning

confidence: 99%

See 1 more Smart Citation

Interaction capacity underpins community diversity

Ushio

2020

Preprint

View full text Add to dashboard Cite

How patterns in community diversity emerge is a long-standing question in ecology. Theories and experimental studies suggested that community diversity and interspecific interactions are interdependent. However, evidence from multitaxonomic, high-diversity ecological communities is lacking because of practical challenges in characterizing speciose communities and their interactions. Here, I analyzed time-varying causal interaction networks that were reconstructed using 1197 species, DNA-based ecological time series taken from experimental rice plots and empirical dynamic modeling, and show that species interaction capacity, namely, the sum of interaction strength that a single species gives and receives, underpins community diversity. As community diversity increases, the number of interactions increases exponentially but the mean species interaction capacity of a community becomes saturated, weakening interaction among species. These patterns are explicitly modeled with simple mathematical equations, based on which I propose the "interaction capacity hypothesis", namely, that species interaction capacity and network connectance are proximate drivers of community diversity. Furthermore, I show that total DNA concentrations and temperature influence species interaction capacity and connectance nonlinearly, explaining a large proportion of diversity patterns observed in various systems. The interaction capacity hypothesis enables mechanistic explanations of community diversity, and how species interaction capacity is determined is a key question in ecology.

show abstract

“…This wastewater contains many extremely fine mineral particles derived from phosphorous-rich rice paddy soils, as indicated by the PP concentration (Ishida et al 2020); therefore, rice paddy irrigation results in the seasonal silting of riverbeds (Vromant and Chau 2005). In the Lake Biwa watershed, rice paddy irrigation is also the primary factor leading to increased turbidity of receiving lagoon waters, in which benthic macroinvertebrates are depauperated (Okano et al 2018). Previous studies have also The hypothetical framework is the same as that in Fig.…”

Section: Effects Of Land Use On Benthic Macroinvertebrate Diversitymentioning

confidence: 99%

Rice paddy irrigation seasonally impacts stream benthic macroinvertebrate diversity at the catchment level

Asano

Lin

et al. 2021

Ecosphere

Self Cite

View full text Add to dashboard Cite

Agriculture is one of the most critical anthropogenic disturbances to freshwater ecosystems globally.In monsoon Asia, rice paddies provide habitats for aquatic species, but how their associated irrigation systems can affect downstream ecosystems is poorly understood. Here, we used structural equation modeling (SEM) to estimate seasonal variations in benthic macroinvertebrate diversity and environments and quantified indirect effects of land use, especially of rice paddy areas, on benthic macroinvertebrate diversity through local environmental alteration. Our study site was the Yasu River tributary of Lake Biwa, Japan, and we performed our investigation during both irrigation and nonirrigation periods, representing different seasons. Seasonal variations in physical and chemical variables and diversity were observed. Seasonal particulate phosphorus concentrations to a large extent determined the abundance and community composition of benthic macroinvertebrates. SEM revealed that the proportions of forest, urban, and rice paddy areas in the catchment had significant indirect effects on biodiversity indices of local benthic macroinvertebrate communities. The proportion of forest area had robust negative effects on water temperature, but the overall indirect effects on the macroinvertebrate diversity contrasted between the two seasonal periods. The proportion of rice paddy area had a strongly negative indirect effect on the diversity through increased particulate phosphorous loading during the irrigation period, while the proportion of urban area had a significantly negative indirect effect during the nonirrigation period only. The seasonal negative impacts of rice paddy irrigation on benthic macroinvertebrate communities were possibly due to siltation arising from rice paddy soils. Our results have implications for environmental restoration and biodiversity conservation in catchment management.

show abstract

The effect of human activities on benthic macroinvertebrate diversity in tributary lagoons surrounding Lake Biwa

Cited by 14 publications

References 48 publications

Untitled

Untitled

Interaction capacity underpins community diversity

Rice paddy irrigation seasonally impacts stream benthic macroinvertebrate diversity at the catchment level

Contact Info

Product

Resources

About