Peer-reviewed Articles - Biology

91 downloads
348 views

Stable isotope analysis of feces can provide a non-invasive method for tracking the dietary habits of nearly any mammalian species. While fecal samples are often collected for macroscopic and genetic study, stable isotope analysis can also be applied to expand...

["Animal Behavior","Biogeography","Ecology","Ecosystem Science","Zoology"]
doi:10.7717/peerj.3436
48 downloads
395 views

Background The Saururaceae, a very small family of Piperales comprising only six species in four genera, have a relatively scanty fossil record outside of Europe. The phylogenetic relationships of the four genera to each other are resolved, with the type genus...

["Paleontology","Plant Science"]
doi:10.7717/peerj.3434
66 downloads
212 views

Subclinical mastitis is a persistent problem in dairy farms worldwide. Environmental Escherichia coli is the bacterium predominantly responsible for this condition. In Thailand, subclinical mastitis in dairy cows is usually treated with various antibiotics, which...

["Microbiology","Infectious Diseases"]
doi:10.7717/peerj.3431
39 downloads
230 views

Background c-Kit is a receptor tyrosine kinase present in multiple cell types, including vascular smooth muscle cells (SMC). However, little is known about how c-Kit influences SMC biology and vascular pathogenesis. Methods High-throughput microarray assays and...

["Molecular Biology","Cardiology","Pharmacology"]
doi:10.7717/peerj.3418
258 downloads
611 views

Geographic variation in external morphology is thought to reflect an interplay between genotype and the environment. Morphological variation has been well-described for a number of cetacean species, including the bottlenose dolphin (Tursiops truncatus). In this...

["Animal Behavior","Biogeography","Ecology","Marine Biology","Zoology"]
doi:10.7717/peerj.3415
27 downloads
214 views

Winter mortality is a major factor regulating population size of the mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae). Glycerol is the major cryoprotectant in this freeze intolerant insect. We report findings from a gene expression...

["Ecology","Entomology","Molecular Biology","Zoology"]
doi:10.7717/peerj.3284
96 downloads
823 views

Gaze following is widespread among animals. However, the corresponding ultimate functions may vary substantially. Thus, it is important to study previously understudied (or less studied) species to develop a better understanding of the ecological contexts that...

["Animal Behaviour","Ecology","Zoology"]
doi:10.7717/peerj.3459
55 downloads
320 views

Photosynthates released by benthic primary producers (BPP), such as reef algae and scleractinian corals, fuel the dissolved organic carbon (DOC) production on tropical coral reefs. DOC concentrations near BPP have repeatedly been observed to be elevated compared...

["Biochemistry","Ecology","Environmental Sciences","Marine Biology"]
doi:10.7717/peerj.3456
37 downloads
220 views

Background Picea chihuahuana, which is endemic to Mexico, is currently listed as “Endangered” on the Red List. Chihuahua spruce is only found in the Sierra Madre Occidental (SMO), Mexico. About 42,600 individuals are distributed in forty populations. These populations...

["Biodiversity","Conservation Biology","Ecology","Genetics","Plant Science"]
doi:10.7717/peerj.3452
55 downloads
241 views

Seawater temperature anomalies associated with warming climate have been linked to increases in coral disease outbreaks that have contributed to coral reef declines globally. However, little is known about how seasonal scale variations in environmental factors...

["Marine Biology","Statistics"]
doi:10.7717/peerj.3438
60 downloads
280 views

The human microbiome has demonstrated an importance for the health and functioning in living individuals. However, the fate of the microbiome after death is less understood. In addition to a better understanding of microbe-mediated decomposition processes, postmortem...

["Ecology","Microbiology"]
doi:10.7717/peerj.3437
38 downloads
321 views

The purpose of this study was to verify a theoretical model of parents’ responses to difficulties they experienced with their child. The model presents relationships between seven variables: (a) discrepancy between parental goal and the child’s current level of...

["Mathematical Biology","Pediatrics","Psychiatry and Psychology","Statistics"]
doi:10.7717/peerj.3384
34 downloads
159 views

Disturbance from the normal developmental trajectory of a trait during growth—the so-called developmental instability—can be observed morphologically through phenodeviants and subtle deviations from perfect symmetry (fluctuating asymmetry). This study investigates...

["Developmental Biology","Evolutionary Studies","Zoology","Anatomy and Physiology","Pathology"]
doi:10.7717/peerj.3359
86 downloads
501 views

Background Within the root endosphere, fungi are known to be important for plant nutrition and resistance to stresses. However, description and understanding of the rules governing community assembly in the fungal fraction of the plant microbiome remains scarce....

["Biodiversity","Ecology","Molecular Biology","Mycology","Plant Science"]
doi:10.7717/peerj.3454
78 downloads
485 views

A complete understanding of the feeding structures is fundamental in order to study how animals survive. Some birds use long and protrusible tongues as the main tool to collect their central caloric source (e.g., woodpeckers and nectarivores). Hummingbirds are...

["Biophysics","Zoology","Anatomy and Physiology"]
doi:10.7717/peerj.3449

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