Peer-reviewed Articles - Biology

100 downloads
1,174 views

Rare hybridisations between deeply divergent animal species have been reported for decades in a wide range of taxa, but have often remained unexplained, mainly considered chance events and reported as anecdotal. Here, we combine field observations with long-term...

["Ecology","Evolutionary Studies","Zoology"]
doi:10.7717/peerj.3072
85 downloads
336 views

This study explores how curvature in the quokka femur may help to reduce bending strain during locomotion. The quokka is a small wallaby, but the curvature of the femur and the muscles active during stance phase are similar to most quadrupedal mammals. Our hypothesis...

["Computational Biology","Evolutionary Studies","Zoology"]
doi:10.7717/peerj.3100
177 downloads
998 views

The patella is a sesamoid bone located in the major extensor tendon of the knee joint, in the hindlimb of many tetrapods. Although numerous aspects of knee morphology are ancient and conserved among most tetrapods, the evolutionary occurrence of an ossified patella...

["Evolutionary Studies","Palaeontology","Zoology","Anatomy and Physiology"]
doi:10.7717/peerj.3103
40 downloads
404 views

Video playback is becoming a common method for manipulating social stimuli in experiments. Parid tits are one of the most commonly studied groups of wild birds. However, it is not yet clear if tits respond to video playback or how their behavioural responses should...

["Animal Behavior","Ecology","Evolutionary Studies"]
doi:10.7717/peerj.3062
61 downloads
345 views

The Iberian Peninsula has an extensive record of species displaying strong genetic structure as a result of their survival in isolated pockets throughout the Pleistocene ice ages. We used mitochondrial and nuclear sequence data to analyze phylogeographic patterns...

["Conservation Biology","Evolutionary Studies"]
doi:10.7717/peerj.3069
49 downloads
306 views

The hypothesis that oxidative damage accumulation can mediate the trade-off between reproduction and lifespan has recently been questioned. However, in captive conditions, studies reporting no evidence in support of this hypothesis have usually provided easy access...

["Ecology","Evolutionary Studies"]
doi:10.7717/peerj.3094
94 downloads
326 views

The land snails collected by the ‘Comisión Científica del Pacifíco’ (CCP), a Spanish expedition to South and Central America from 1862–1866, are restudied and revised. The historical context of the expedition and the study of its collected material are described....

["Biogeography","Evolutionary Studies","Taxonomy","Zoology"]
doi:10.7717/peerj.3065
147 downloads
832 views

Background Ancient protein sequences are increasingly used to elucidate the phylogenetic relationships between extinct and extant mammalian taxa. Here, we apply these recent developments to Middle Pleistocene bone specimens of the rhinoceros genus Stephanorhinus....

["Bioinformatics","Evolutionary Studies","Molecular Biology","Paleontology"]
doi:10.7717/peerj.3033
57 downloads
210 views

Sexual size dimorphism (SSD) is widespread among animals, with larger females usually attributed to an optimization of resources in reproduction and larger males to sexual selection. A general pattern in the evolution of SSD is Rensch’s rule, which states that...

["Entomology","Evolutionary Studies","Zoology"]
doi:10.7717/peerj.3060
197 downloads
2,837 views

Background In vertebrates, the left-and-right pairs of homologous organs are generally present in equal numbers. A remarkable exception is known in the snail-eating snakes of the family Pareidae: almost all the pareid snakes have much more teeth on the right mandible...

["Animal Behavior","Ecology","Evolutionary Studies","Zoology"]
doi:10.7717/peerj.3011
39 downloads
232 views

Trypanosoma brucei brucei (TBB) belongs to the unicellular parasitic protozoa organisms, specifically to the Trypanosoma genus of the Trypanosomatidae class. A variety of different vertebrate species can be infected by TBB, including humans and animals. Under particular...

["Biochemistry","Bioinformatics","Computational Biology","Evolutionary Studies","Parasitology"]
doi:10.7717/peerj.3061
113 downloads
899 views

We present a new supertree method that enables rapid estimation of a summary tree on the scale of millions of leaves. This supertree method summarizes a collection of input phylogenies and an input taxonomy. We introduce formal goals and criteria for such a supertree...

["Bioinformatics","Computational Biology","Evolutionary Studies","Taxonomy"]
doi:10.7717/peerj.3058
181 downloads
1,178 views

Bayesian phylogenetic methods integrating simultaneously morphological and stratigraphic information have been applied increasingly among paleontologists. Most of these studies have used Bayesian methods as an alternative to the widely-used parsimony analysis,...

["Evolutionary Studies","Paleontology","Zoology"]
doi:10.7717/peerj.3055
98 downloads
263 views

Background Whole mitochondrial DNA is being increasingly utilized for comparative genomic and phylogenetic studies at deep and shallow evolutionary levels for a range of taxonomic groups. Although mitogenome sequences are deposited at an increasing rate into public...

["Aquaculture","Fisheries and Fish Science","Biodiversity","Evolutionary Studies","Genomics","Marine Biology"]
doi:10.7717/peerj.2982
64 downloads
321 views

Background The emergence and evolution of community-acquired methicillin resistant Staphylococcus aureus (CA-MRSA) strains in Africa is poorly understood. However, one particular MRSA lineage called ST88, appears to be rapidly establishing itself as an “African”...

["Bioinformatics","Evolutionary Studies","Genomics","Microbiology"]
doi:10.7717/peerj.3047

Top subject areas - Articles

Top subject areas - People

View all subject areas