Preprints (not yet peer-reviewed)

334 downloads
330 views

Aim: Barriers continue to be built globally despite their well-known negative effects on freshwater ecosystems. Fish habitats are disturbed by barriers and the connectivity in the stream network reduced. We implemented and assessed the use of barrier data, including...

["Aquaculture, Fisheries and Fish Science","Biodiversity","Ecology","Environmental Sciences"]
doi:10.7287/peerj.preprints.2112v2
82 downloads
217 views

Grazing extensification and intensification are among the main problems affecting European grasslands. We analyze the impact of grazing intensity (low and moderate) and the use of veterinary medical products (VMPs) on the dung beetle community in the province of...

["Biodiversity","Ecology","Entomology","Environmental Sciences"]
doi:10.7287/peerj.preprints.2358v1
292 downloads
265 views

Despite decades of work in environmental science and ecology, estimating human influences on ecosystems remains challenging. This is partly due to complex chains of causation among ecosystem elements, exacerbated by the difficulty of collecting biological data...

["Biodiversity","Ecology","Environmental Sciences"]
doi:10.7287/peerj.preprints.2356v1
970 downloads
1,724 views

Zeta potential, defined as the electric charge at the shear plane, is widely used as a proxy parameter for bacteria 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.110v5
229 downloads
489 views

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

["Biochemistry","Bioengineering","Biotechnology","Environmental Sciences","Microbiology"]
doi:10.7287/peerj.preprints.1406v4
169 downloads
741 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.117v4
296 downloads
1,196 views

Sufficient quantities of cells of consistent characteristics are needed for studying biological processes (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.115v5
34 downloads
207 views

The endangered chimpanzee (Pan troglodytes) is threatened by habitat loss from resource extraction and land conversion, as well as illegal bushmeat hunting and disease. It has been estimated that more than 70% of chimpanzee's tropical forest habitats in Africa...

["Animal Behavior","Biodiversity","Conservation Biology","Ecology","Environmental Sciences"]
doi:10.7287/peerj.preprints.2339v1
905 downloads
596 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...

["Biodiversity","Ecology","Environmental Sciences","Microbiology"]
doi:10.7287/peerj.preprints.181v4
160 downloads
202 views

To assess the possible impact of transgenic poplar plantations on the ecosystem, we analyzed the frequency and distance of gene flow from a mature male transgenic Populus nigra carried Bacillus thuringiensis toxin gene (Bt-OE poplar) plantation, and the survival...

["Agricultural Science","Ecology","Environmental Sciences","Plant Science"]
doi:10.7287/peerj.preprints.2335v1
183 downloads
781 views

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

["Bioengineering","Environmental Sciences","Microbiology"]
doi:10.7287/peerj.preprints.89v4
158 downloads
172 views

The objective of this study is to find the correlation between climate factors and dengue incidence rate in Bangkok and Singapore during 2009-2015. Spearman's rank correlation tests with time-lag are performed to investigate the overall correlation between dengue...

["Environmental Sciences","Epidemiology","Infectious Diseases"]
doi:10.7287/peerj.preprints.2322v1
103 downloads
458 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...

["Biotechnology","Environmental Sciences","Microbiology"]
doi:10.7287/peerj.preprints.91v4
142 downloads
540 views

Understanding the distribution of taxa and associated traits across different environments is one of the central questions in microbial ecology. High-throughput sequencing (HTS) studies are presently generating huge volumes of data to address this biogeographical...

["Bioinformatics","Ecology","Environmental Sciences","Microbiology"]
doi:10.7287/peerj.preprints.2317v1
187 downloads
393 views

The production of hydrogen and methane by geochemical reactions associated with the serpentinization of ultramafic rocks can potentially support subsurface microbial ecosystems independent of the photosynthetic biosphere. Methanogenic and methanotrophic microorganisms...

["Ecology","Environmental Sciences","Genomics","Marine Biology","Microbiology"]
doi:10.7287/peerj.preprints.2315v1
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