Peer-reviewed Articles - Biology

Genetic studies of the Eurasian brown bear (Ursus arctos) have so far focused on populations from Europe and North America, although the largest distribution area of brown bears is in Asia. In this study, we reveal population genetic parameters for the brown bear...

["Biogeography","Conservation Biology","Genetics","Zoology","Population Biology"]
doi:10.7717/peerj.5660
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The microsporidian Nosema bombycis is an obligate intracellular parasite of Bombyx mori, that lost its intact tricarboxylic acid cycle and mitochondria during evolution but retained its intact glycolysis pathway. N. bombycis hexokinase (NbHK) is not only a rate-limiting...

["Microbiology","Molecular Biology","Parasitology"]
doi:10.7717/peerj.5658
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Tetraena mongolica Maxim (Zygophyllaceae) is an endangered species endemic to western Inner Mongolia and China, and is currently threatened by habitat loss and human over-exploitation. We explored the genetic background, its genetic diversity, population structure,...

["Conservation Biology","Ecology","Population Biology"]
doi:10.7717/peerj.5645
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The genus Leggadina (colloquially known as ‘short-tailed mice’) is a common component of Quaternary faunas of northeastern Australia. They represent a member of the Australian old endemic murid radiation that arrived on the continent sometime during the late Cenozoic....

["Paleontology","Zoology"]
doi:10.7717/peerj.5639
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Background Understanding the underlying factors that determine the relative abundance of plant species is critical to predict both biodiversity and ecosystem function. Biotic and abiotic factors can shape the distribution and the relative abundance of species across...

["Biodiversity","Ecology"]
doi:10.7717/peerj.5619
3 downloads
4 views

The hysteresis of the seasonal relationships between vegetation indices (VIs) and gross ecosystem production (GEP) results in differences between these relationships during vegetative and reproductive phases of plant development cycle and may limit their applicability...

["Agricultural Science","Spatial and Geographic Information Science"]
doi:10.7717/peerj.5613
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Background Denitrification is one of the main pathways of the N-cycle, during which nitrate is converted to dinitrogen gas, in four consecutive reactions that are each catalyzed by a different metalloenzyme. One of the intermediate metabolites is nitrous oxide,...

["Biochemistry","Marine Biology","Microbiology","Aquatic and Marine Chemistry","Biological Oceanography"]
doi:10.7717/peerj.5603
1 download
1 view

Background Analyses of the control region sequences of European brown trout populations’ mitrochondrial DNA have revealed five main evolutionary lineages (Atlantic, Danubian, Mediterranean, Adriatic, Marble) mostly relating to the main water basins; however, the...

["Aquaculture, Fisheries and Fish Science","Genetics","Population Biology"]
doi:10.7717/peerj.5152
10 downloads
60 views

Müller glia in the zebrafish retina respond to retinal damage by re-entering the cell cycle, which generates large numbers of retinal progenitors that ultimately replace the lost neurons. In this study we compared the regenerative outcomes of adult zebrafish exposed...

["Cell Biology","Developmental Biology","Molecular Biology","Neuroscience","Ophthalmology"]
doi:10.7717/peerj.5646
9 downloads
121 views

Deep sea lobsters are highly valued for seafood and provide the basis of important commercial fisheries in many parts of the world. Despite their economic significance, relatively little is known about their natural diets. Microscopic analyses of foregut content...

["Aquaculture, Fisheries and Fish Science","Bioinformatics","Genetics","Marine Biology","Molecular Biology"]
doi:10.7717/peerj.5641
50 downloads
821 views

We surveyed the taxa, ecosystems, and localities of the Devonian fishes of Michigan to provide a framework for renewed study, to learn about the diversity and number of these fishes, and to investigate their connection to other North American faunas. Nineteen genera...

["Biodiversity","Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.5636
10 downloads
305 views

Drosophila melanogaster larvae detect noxious thermal and mechanical stimuli in their environment using polymodal nociceptor neurons whose dendrites tile the larval body wall. Activation of these nociceptors by potentially tissue-damaging stimuli elicits a stereotyped...

["Cell Biology","Genetics","Molecular Biology","Neuroscience"]
doi:10.7717/peerj.5632
9 downloads
49 views

Background Identifying biodiversity hotspots on a local scale, using multiple data sources, and ecological niche modeling, has the potential to contribute to more effective nature reserve management. Methods In this study, we used infrared-triggered camera trapping,...

["Biodiversity","Conservation Biology","Climate Change Biology"]
doi:10.7717/peerj.5622
9 downloads
43 views

Background Assemblage responses to environmental gradients are key to understand the general principles behind the assembly and functioning of communities. The spatially and temporally uneven distribution of water availability in drylands creates strong aridity...

["Biodiversity","Biogeography","Ecology","Entomology","Zoology"]
doi:10.7717/peerj.5210
19 downloads
99 views

Two novel peptides belonging to the dermaseptin family, namely DRS-CA-1 and DRS-DU-1, were encoded from cDNA libraries derived from the skin secretions of Phyllomedusa camba and Callimedusa (Phyllomedusa) duellmani. Both natural peptides are highly-conserved and...

["Biochemistry","Bioengineering","Molecular Biology","Synthetic Biology"]
doi:10.7717/peerj.5635

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