Results 71 to 80 of about 36,213 (285)

Comparison between fluorometry and microscopy‐based phytoplankton assessments in the Laurentian Great Lakes

Limnology and Oceanography: Methods, EarlyView.
Abstract Photosynthetic pigment fluorescence is commonly used in limnology and oceanography as a proxy for phytoplankton biomass. Fluorometry has been used to detect subsurface algal blooms, characterize dynamics of the deep chlorophyll layer, and to provide greater vertical resolution to phytoplankton monitoring.
Katya E. Kovalenko, Euan D. Reavie, Christopher T. Filstrup, Anne Scofield, Meaghan Lightfoot, Erica Yang, Elizabeth E. Alexson   +6 more
wiley   +1 more source

Laying Down the Foundations for Qualitative and Quantitative Freshwater Zooplankton Metabarcoding Surveys

Environmental DNA
Metabarcoding has been proven to be a highly effective tool for surveying biodiversity in aquatic ecosystems. Despite the recent explosion of metabarcoding studies, relatively few efforts have focused on freshwater zooplankton communities, even though ...
Jonas Bylemans, Didier Azam, Anne‐Laure Besnard, Simon Blanchet, Cecile Chardon, Gérard Lacroix, Leslie Laine, Stephen Mulero, Carine Puppo, Murielle Richard, Marine Vautier, Isabelle Domaizon   +11 more
doaj   +1 more source

eDNA Metabarcoding Reveals Microbial Community Composition in Tropical Mangrove Forests in Makassar, Indonesia. [PDF]

Ecol Evol
This study used environmental DNA (eDNA) metabarcoding with 18S rRNA markers to assess microbial diversity in the Lantebung Mangrove Forest, Makassar, Indonesia. It identified 103 microbial species across five kingdoms, revealing higher species richness in open‐water areas (P1) and greater individual abundance under mangrove canopy (P2).
Larekeng SH, Basyuni M, Aznawi AA, Irmawati I, Iswanto I, Saldy M, Mubaraq A, Slamet B, Sumarga E, Arifanti VB, Ali HM.   +10 more
europepmc   +2 more sources

Seasonal variations in planktonic food web structure affect stability by shifting the distribution of energy fluxes

Oikos, EarlyView.
Seasonality in temperate ecosystems shapes species phenology, influencing interactions and food web structure. Variations in species richness and biomass affect trophic interaction strength, a crucial factor for community stability, which can be assessed through energy fluxes – an essential indicator of ecosystem function.
Simon Bazin, Isabelle Domaizon, Cécilia Barouillet, Victor Frossard, Arnaud Sentis   +4 more
wiley   +1 more source

Transforming gastrointestinal helminth parasite identification in vertebrate hosts with metabarcoding: a systematic review

Parasites & Vectors
Background Gastrointestinal helminths are a very widespread group of intestinal parasites that can cause major health issues in their hosts, including severe illness or death.
Madison L. Miller, Christopher Rota, Amy Welsh   +2 more
doaj   +1 more source

Evaluating the Quantitative Accuracy and Application of DNA Metabarcoding for Dietary Reconstruction in Ruminants. [PDF]

Ecol Evol
This study assessed the accuracy of DNA metabarcoding using ITS2 and trnL markers to reconstruct sheep diets under controlled feeding trials with high‐ and low‐digestibility forage, and in a secondary trial with low‐level inclusions of Medicago sativa. ITS2 offered higher species‐level resolution, while trnL provided broader taxonomic coverage but less
Vallin H, Fraser M, Pakeman RJ, Hipperson H.   +3 more
europepmc   +2 more sources

Exploring within-host diversity of plant viruses in rice agrosystems using two high-throughput sequencing strategies [PDF]

, 2018
The virome is an essential component of the phytobiome as viruses correspond to the most abundant and diverse biological entity in Nature and interact with all living organisms. The recent advances in high-throughput sequencing (HTS) has proven efficient
Dereeper, Alexis, Fargette, Denis, Fernandez, Emmanuel, Filloux, Denis, Hebrard, Eugénie, Hubert, Judith, Julian, Charlotte, Pinel-Galzi, Agnès, Poulicard, Nils, Roumagnac, Philippe   +9 more
core  

The biodiversity benefit of native forests and mixed-species plantations over monoculture plantations [PDF]

, 2019
Aim: China's Grain for Green Program (GFGP) is the largest reforestation programme in the world and has been operating since 1999. The GFGP has promoted the establishment of tree plantations over the restoration of diverse native forests.
Butterfield J., Cao S., Delang C. O., Hsieh T. C., Joshi N. A., R Core Team, Sayer J. A., Tao Y., United Nations, Wu R., Xie G.   +10 more
core   +1 more source

A amostragem estratificada aprimora a compreensão das redes entre morcegos e frutos na Mata Atlântica meridional

Oikos, EarlyView.
Few studies have sought to understand the vertical patterns of bat–fruit systems, and therefore, it is not possible to evaluate whether interpretations based on data collected from a single stratum adequately represent the interaction patterns of this system. In this context, we evaluated the dissimilarity in the assemblage of frugivorous bats, plants,
Karolaine Porto Supi, Thais Bastos Zanata, Daniela Aparecida Savariz Bôlla, Fernando Carvalho   +3 more
wiley   +1 more source

Molecular metrics to monitor ecological status of large rivers: Implementation of diatom DNA metabarcoding in the Joint Danube Survey 4

Ecological Indicators
The Joint Danube Survey (JDS) is a regular transnational survey to monitor the quality of the Danube and its main tributaries, in accordance with the EU Water Framework Directive.
Kálmán Tapolczai, Teofana Chonova, Dana Fidlerová, Jarmila Makovinská, Demetrio Mora, Alexander Weigand, Jonas Zimmermann   +6 more
doaj   +1 more source