scholarly journals Environmental DNA effectively captures functional diversity of coastal fish communities

2020 ◽  
Author(s):  
Giorgio Aglieri ◽  
Charles Baillie ◽  
Stefano Mariani ◽  
Carlo Cattano ◽  
Antonio Calò ◽  
...  

2021 ◽  
Vol 121 ◽  
pp. 107216
Author(s):  
Manabu Kume ◽  
Edouard Lavergne ◽  
Hyojin Ahn ◽  
Yuki Terashima ◽  
Kohmei Kadowaki ◽  
...  


Author(s):  
Pierre Taberlet ◽  
Aurélie Bonin ◽  
Lucie Zinger ◽  
Eric Coissac

Chapter 10 “Environmental DNA for functional diversity” discusses the potential of environmental DNA to assess functional diversity. It first focuses on DNA metabarcoding and discusses the extent to which this approach can be used and/or optimized to retrieve meaningful information on the functions of the target community. This knowledge usually involves coarsely defined functional groups (e.g., woody, leguminous, graminoid plants; shredders or decomposer soil organisms; pathogenicity or decomposition role of certain microorganisms). Chapter 10 then introduces metagenomics and metatranscriptomics approaches, their advantages, but also the challenges and solutions to appropriately sampling, sequencing these complex DNA/RNA populations. Chapter 10 finally presents several strategies and software to analyze metagenomes/metatranscriptomes, and discusses their pros and cons.



2021 ◽  
Vol 126 ◽  
pp. 107698
Author(s):  
Petr Blabolil ◽  
Lynsey R. Harper ◽  
Štěpánka Říčanová ◽  
Graham Sellers ◽  
Cristina Di Muri ◽  
...  


2007 ◽  
Vol 71 (3-4) ◽  
pp. 443-456 ◽  
Author(s):  
David Mouillot ◽  
Olivier Dumay ◽  
Jean Antoine Tomasini


2002 ◽  
Vol 44 (3) ◽  
pp. 165-178 ◽  
Author(s):  
N. C. Stenseth ◽  
K. Lekve ◽  
J. Gj�s�ter


2020 ◽  
Author(s):  
Petr Blabolil ◽  
Lynsey Harper ◽  
Stepanka Ricanova ◽  
Graham Sellers ◽  
Cristina Di Muri ◽  
...  


2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Hirotoshi Sato ◽  
Yuki Sogo ◽  
Hideyuki Doi ◽  
Hiroki Yamanaka


2021 ◽  
Author(s):  
Naoto Shinohara ◽  
Yuki Hongo ◽  
Momoko Ichinokawa ◽  
Shota Nishijima ◽  
Shuhei Sawayama ◽  
...  

Compositional variation among local communities is a result of environmental (e.g., environmental filtering) and spatial (e.g., dispersal limitation) processes. Growing evidence suggests that their relative importance varies temporally, but little is known about the short-time scale dynamics, that is, seasonality. Using marine fish communities in a Japanese bay as a model system, we tested the hypothesis that seasonal changes in the environment induce a shift in the relative importance of environmental and spatial processes. We used one-year monthly monitoring data obtained using environmental DNA and conducted a variation partitioning analysis to decompose the two processes. The relative importance of environmental and spatial processes was comparable averaged over the year but changed seasonally. During summer, when lower dissolved oxygen concentrations may adversely affect organisms, species composition was more explained by space despite larger environmental heterogeneity than in other seasons. This suggests that environmental processes weakened during the season with extremely severe environments, likely due to the random loss of individuals. We conclude that the assembly processes of communities of mobile organisms, such as fishes, can shift even within a year in response to seasonal changes in environmental severity. The results also indicate the applicability of eDNA techniques for community assembly studies.



2019 ◽  
Vol 36 ◽  
pp. 1-12 ◽  
Author(s):  
Sandra Maria Hartz ◽  
Elise Amador Rocha ◽  
Fernanda Thiesen Brum ◽  
André Luís Luza ◽  
Taís de Fátima Ramos Guimarães ◽  
...  

In this study we investigated the influence of landscape variables on the alpha taxonomic and functional diversity of fish communities in coastal lakes. We built an analytical framework that included possible causal connections among variables, which we analyzed using path analysis. We obtained landscape metrics for the area, shape and connectivity (estuary connectivity and primary connectivity to neighboring lakes) of 37 coastal lakes in the Tramandaí River Basin. We collected fish data from 49 species using standardized sampling with gillnets and obtained a set of traits related to dispersal abilities and food acquisition. The model that best explained the taxonomic diversity and functional richness took into account the shape of the lakes. Functional richness was also explained by estuary connectivity. Functional evenness and dispersion were not predicted by area or connectivity, but they were influenced by the abundant freshwater species. This indicates that all lakes support most of the regional functional diversity. The results highlight the importance of the dispersal process in this lake system and allow the conclusion that considering multiple diversity dimensions can aid the conservation of local and regional fish communities.



2020 ◽  
Vol 97 (2) ◽  
pp. 444-452 ◽  
Author(s):  
Aurélie Goutte ◽  
Noëlie Molbert ◽  
Sabrina Guérin ◽  
Robin Richoux ◽  
Vincent Rocher


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