Partitioning and drivers of aquatic insect beta diversity in mountain streams

Bispo, Pitágoras C.; Branco, Ciro César Zanini; Novaes, Marcos Carneiro; Costa, Lucas S. M.; Yokoyama, Elisa; Barfield, Michael; Holt, Robert D.

doi:10.1086/717485

Cited by 5 publications

(2 citation statements)

References 76 publications

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“…Consistent with previous research (Bispo et al, 2021;Liu et al, 2022), our findings indicate that functional beta diversity is associated with environmental distance, rather than spatial distance, supporting our second hypothesis. It is widely acknowledged in the field of ecology that environmental conditions play a crucial role in filtering species from the regional species pool based on their functional traits, such as their activity and feeding habits, dispersal patterns, and environmental tolerance.…”

Section: Variables Beta Diversity Turnoversupporting

confidence: 92%

Assembly mechanism of macroinvertebrate metacommunities and ecological factors of multiple aspects of beta diversity in a boreal river basin, China

Zheng

Yin

2023

Front. Ecol. Evol.

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The emergence of metacommunity theory has significantly contributed to our understanding of the drivers of community assembly and biome variation. The Network Location Hypothesis (NPH) posits that tributary communities situated at the source regions of a river are disproportionately susceptible to environmental filtering due to their remote location and consequent reduced connectivity to downstream reaches of the river system. However, downstream communities located in central parts of the river network exhibit increased connectivity to other communities, thereby making them more susceptible to spatial effects. Nonetheless, empirical studies testing this theory have been relatively scarce to date. Additionally, it is widely acknowledged that integrating multiple dimensions of beta diversity can enhance our understanding of the mechanisms driving community assembly. Based on the above, we collected macroinvertebrate samples from a boreal river in China to verify these views. Specifically, we examined the significance of network location on metacommunity assembly (NPH hypothesis) by utilizing a distance-decay relationship and simultaneously assessing multiple dimensions of ecological drivers of beta diversity. Our results revealed that the predictions of the NPH hypothesis were not supported in the study area, with the impact of environmental filtering on community assembly being prevalent regardless of network location. Taxonomic beta diversity consists almost entirely of turnover, with turnover contributing more to functional beta diversity than nestedness, while phylogenetic beta diversity consists of a combination of turnover and nestedness. We observed that a uniform species composition across sites led to higher taxonomic beta diversity in the study area. However, functional redundancy and the presence of closely related species across sites resulted in lower functional and phylogenetic beta diversity compared to taxonomic beta diversity. Although we found some correlation between phylogenetic and functional beta diversity, their mechanisms of variation were not consistent, with phylogenetic beta diversity showing greater variability than functional beta diversity. This suggests that differences in functional traits may be primarily driven by more distantly related species. Therefore, our findings do not fully support the use of phylogenetic distance as a surrogate for functional distance. The present study emphasizes the significance of incorporating multiple dimensions of beta diversity in metacommunity research, as they offer unique insights into beta diversity. Specifically, we found that environmental factors play a crucial role in shaping macroinvertebrate community composition and functional traits, which is associated with the higher environmental heterogeneity within the study area. In contrast, spatial processes, such as dispersal limitations, lead to variations in the evolutionary history of organisms across different locations, which is associated with the larger geographical extent of the study area.

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Section: Variables Beta Diversity Turnoversupporting

confidence: 92%

Assembly mechanism of macroinvertebrate metacommunities and ecological factors of multiple aspects of beta diversity in a boreal river basin, China

Zheng

Yin

2023

Front. Ecol. Evol.

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“…Liu et al 2018;Wang et al 2021). Further, the di culty in explaining the pattern in beta diversity demonstrated here may be due the different facets of beta diversity (phylogenetic, functional), and may be dependent on many factors, trunover rates being one of the primary ones (Bispo et al 2021). On the other hand, has shown a pattern in herbivorous insects different than generally accepted Rapoport's rule where the beta diversity of herbivorous insects was less in the tropical forests with the implication that more data need to be documented (Novotny et al 2007).…”

Section: Discussionmentioning

confidence: 91%

Elevational and seasonal diversity of insect orders in the Shivapuri-Nagarjun National Park, Nepal

Saru,

Acharya,

Adhikari

et al. 2023

Preprint

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Insects fill many ecological niches and are crucial for sustaining ecosystems. Nevertheless, reported declines in insect diversity across the globe has raised grave concerns for these declines have significant ecological and economic ramifications. The current scenario of shifting environmental conditions, dwindling insect populations, and a dearth of information on these species in Nepal, one of the 36 biodiversity hotspots, necessitates immediate intervention. The essential first step in increasing our understanding of the species for appropriate conservation efforts is species inventory. Using three collecting techniques (cup trap, pitfall trap, and net swipe), we evaluated insect order diversity in the Shivapuri-Nagarjun National Park from February 2019 to February 2020 spanning three elevations (1660 m to 2700 m asl) and four seasons (Summer, Autumn, Winter, and Spring). Dipetra led the collection with a total of 632 individuals out of the 1467 insects belonging to 11 orders. The total count did not differ by elevation and was highest in the summer and lowest in the winter. While the ß-diversity was unaffected by elevation or season, the α-diversity varied according to both. We discuss the relationship between insect counts and air temperature as well as the relative abundance at various elevations and during various seasons. We also talk about the relationship between insect counts and air temperature and their relative abundance. For future reference, this study gathers the critical baseline data on the distribution of insect orders at SNNP.

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Influence of local and landscape environmental factors on alpha and beta diversity of macroinvertebrates in Andean rivers

Diaz-Rojas,

Pedroza-Ramos,

Barrera-Herrera

et al. 2023

J. Mt. Sci.

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Partitioning and drivers of aquatic insect beta diversity in mountain streams

Cited by 5 publications

References 76 publications

Assembly mechanism of macroinvertebrate metacommunities and ecological factors of multiple aspects of beta diversity in a boreal river basin, China

Assembly mechanism of macroinvertebrate metacommunities and ecological factors of multiple aspects of beta diversity in a boreal river basin, China

Elevational and seasonal diversity of insect orders in the Shivapuri-Nagarjun National Park, Nepal

Influence of local and landscape environmental factors on alpha and beta diversity of macroinvertebrates in Andean rivers

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