Preprints (not yet peer-reviewed)

15 downloads
183 views

Background. Rare or narrowly endemic organisms are difficult to monitor and conserve when their total distribution and habitat preferences are incompletely known. One method employed in determining distributions of these organisms is species distribution modeling...

["Biogeography","Conservation Biology","Environmental Sciences"]
doi:10.7287/peerj.preprints.3082v1
17 downloads
101 views

The objective of this study was to characterize the structure and function of microbial communities in surface seawater from the Changjiang Estuary and adjacent areas, China. Sample water was collected at 12 sites and environmental parameters were measured. Community...

["Ecology","Environmental Sciences"]
doi:10.7287/peerj.preprints.3079v1
10 downloads
83 views

To evaluate the environmental quality of different poultry houses, the concentrations and compositions of microbial aerosols and PM2.5 were measured. Results showed that the concentrations of airborne bacteria, airborne fungi and airborne Escherichia coli in poultry...

["Environmental Sciences","Microbiology","Veterinary Medicine","Public Health"]
doi:10.7287/peerj.preprints.3072v1
51 downloads
174 views

There is currently unprecedented interest in quantifying variation in thermal physiology among organisms in order to understand and predict the biological impacts of climate change. A key parameter in this quantification of thermal physiology is the performance...

["Ecology","Environmental Sciences","Mathematical Biology"]
doi:10.7287/peerj.preprints.3068v1
44 downloads
234 views

Texas is the second largest state in the United States of America, and the largest state in the contiguous USA at nearly 700,000 sq. km. Several Texas bumble bee species have shown evidence of declines in portions of their continental ranges, and conservation initiatives...

["Ecology","Ecosystem Science","Entomology","Environmental Sciences"]
doi:10.7287/peerj.preprints.2932v2
243 downloads
594 views

Microbes for environmental research should be cultured in growth media with characteristics (e.g., pH, ionic strength, and ionic composition) as close to their original habitat as possible. Additionally, the medium should also enable high cell density to be obtained,...

["Biochemistry","Bioengineering","Biotechnology","Environmental Sciences","Microbiology"]
doi:10.7287/peerj.preprints.1406v5
960 downloads
683 views

Microbes, with their vast metabolic capabilities and great adaptability, occupy almost every conceivable ecological niche on Earth. Thus, could they survive in the oligotrophic (i.e., nutrient poor) deionized (DI) water that we use for experiments? Observations...

["Biochemistry","Biodiversity","Ecology","Environmental Sciences","Microbiology"]
doi:10.7287/peerj.preprints.181v5
1,036 downloads
1,897 views

Zeta potential, defined as the electric charge at the shear plane, is widely used as a proxy parameter for bacterial cell surface charge. Nonspecific adsorption of ions or polyelectrolytes onto the cell surface, however, alters the value and polarity of the measured...

["Bioengineering","Biophysics","Biotechnology","Environmental Sciences","Microbiology"]
doi:10.7287/peerj.preprints.110v6
190 downloads
890 views

Solid medium enables spatially resolved simultaneous cultivation of different microbes in a simple and relatively low cost format useful for preliminary screening of microbial diversity. Lack of color contrast between colonies and agar, however, hampers colony...

["Biochemistry","Bioengineering","Environmental Sciences","Microbiology"]
doi:10.7287/peerj.preprints.89v5
109 downloads
551 views

Bacteria surface charge mediates important cell-environment and microbe-host interactions, and its accurate and precise measurement by microelectrophoresis requires removing metabolites adhered to the cell surface, where repeated centrifugation and washing by buffers...

["Biochemistry","Biotechnology","Environmental Sciences","Microbiology"]
doi:10.7287/peerj.preprints.91v5
59 downloads
305 views

This paper presents the ecotoxicological assessment and environmental risk evaluation of complex pesticide mixtures occurring in freshwater ecosystems in southern Sweden. The evaluation is based on exposure data collected between 2002 and 2013 by the Swedish pesticide...

["Agricultural Science","Environmental Sciences"]
doi:10.7287/peerj.preprints.2779v2
21 downloads
103 views

Background. The effluents of the mono-specific aquaculture contain high concentrations of dissolved nutrients and organic matter, which affect negatively water quality of the recipient aquatic ecosystems. A key feature of water quality is its transparency. Chromophoric...

["Aquaculture, Fisheries and Fish Science","Environmental Sciences"]
doi:10.7287/peerj.preprints.3012v1
182 downloads
845 views

The characteristics of the culture vessel determine, to a large extent, the type of growth medium suitable for use. For example, most growth media for high cell density cultivation are designed for expensive bioreactors operating either in continuous or fed-batch...

["Biochemistry","Bioengineering","Biotechnology","Environmental Sciences","Microbiology"]
doi:10.7287/peerj.preprints.117v5
306 downloads
1,291 views

Sufficient quantities of cells of consistent characteristics are needed for studying biologicalprocesses (at the population level ) in many areas of applied microbiology. However, generating the requisite biomass by cell culture is usually the rate-limiting step...

["Biochemistry","Biotechnology","Environmental Sciences","Microbiology"]
doi:10.7287/peerj.preprints.115v6
270 downloads
1,144 views

Environmental bulk samples often contain many taxa that vary several orders of magnitude in biomass. This can be problematic in DNA metabarcoding and metagenomic high-throughput sequencing approaches, as large specimens contribute disproportionately high amounts...

["Biodiversity","Conservation Biology","Environmental Sciences","Molecular Biology","Zoology"]
doi:10.7287/peerj.preprints.2561v3
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