Preprints (not yet peer-reviewed)

4 downloads
60 views

Populations of passively dispersed organisms in continental aquatic habitats typically show high levels of neutral genetic differentiation, despite their high dispersal capabilities. Several evolutionary factors, including founder events and local adaptation, and...

["Ecology","Evolutionary Studies","Genetics","Freshwater Biology"]
doi:10.7287/peerj.preprints.3254v1
11 downloads
84 views

Background: India is one of the mega biodiverse countries with a large number of endemic freshwater fishes. Recently, species of genus Horaglanis (family: Clariidae) have been reported from the southern part of India. Due to their unique morphological adaptations,...

["Aquaculture, Fisheries and Fish Science","Evolutionary Studies","Genetics","Taxonomy"]
doi:10.7287/peerj.preprints.3251v1
12 downloads
87 views

The Callovian Oxford Clay of England has yielded a rich and diverse marine fauna, mainly discovered and described by Alfred Leeds. However, occasionally it also brought forth terrestrial fossils, including four isolated cases of sauropod remains, one of a stegosaurid,...

["Evolutionary Studies","Paleontology","Taxonomy","Zoology","Anatomy and Physiology"]
doi:10.7287/peerj.preprints.3243v1
13 downloads
110 views

Background. Enteroviruses are small non-enveloped viruses with (+) ssRNA genome with one open reading frame. Enterovirus protein 3C (or 3CD for some species) binds the replicative element oriL to initiate replication. The replication of enteroviruses features low...

["Evolutionary Studies","Genomics","Virology"]
doi:10.7287/peerj.preprints.3153v2
83 downloads
425 views

AMNH FARB 291 is a unique sauropod dinosaur specimen, excavated in 1898 from the Bone Cabin Quarry of Wyoming (Upper Jurassic; Morrison Formation). It consists of a sequence of five contiguous dorsal vertebrae, all with biconvex centra: a morphology not previously...

["Developmental Biology","Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.3144v2
10 downloads
93 views

The Dipnomorpha include the extinct Porolepiformes, in addition to Powichthys and Youngolepis and the extant Dipnoi (lungfish). As sister group to the Tetrapodomorpha, the Dipnomorpha hold a valuable place in our understanding of early sarcopterygian evolution....

["Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.3235v1
7 downloads
126 views

Contemporary proteins can be traced back to a basic set of a few thousand domain prototypes. The origin of these domain prototypes, however, remains poorly understood. We have proposed that they arose from an ancestral set of peptides, which acted as cofactors...

["Biochemistry","Bioinformatics","Evolutionary Studies"]
doi:10.7287/peerj.preprints.3234v1
16 downloads
114 views

The Middle Jurassic was a pivotal time for many vertebrate groups: recent research suggests mammals experienced a surge in ecological diversity at this time. However, vertebrate fossils from the Middle Jurassic are rare. Until now, Middle Jurassic mammals in the...

["Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7287/peerj.preprints.3232v1
372 downloads
3,077 views

Interbasinal stratigraphic correlation provides the foundation for all consequent continental-scale geological and paleontological analyses. Correlation requires synthesis of lithostratigraphic, biostratigraphic and geochronologic data, and must be periodically...

["Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.2554v2
38 downloads
88 views

Convergent evolution can provide insights into the predictability of, and constraints on, the evolution of biodiversity. One striking example of convergence is seen in the ‘river dolphins’. The four dolphin genera that make up the ‘river dolphins’ (Inia geoffrensis,...

["Evolutionary Studies","Taxonomy","Zoology"]
doi:10.7287/peerj.preprints.3222v1
12 downloads
89 views

Models and the process of modeling are fundamental to the discipline of biology, and therefore should be incorporated into undergraduate biology courses. In this essay, we draw upon the literature and our own teaching experiences to provide practical suggestions...

["Evolutionary Studies","Genetics","Mathematical Biology","Science and Medical Education"]
doi:10.7287/peerj.preprints.3215v1
21 downloads
106 views

Social learning provides an effective route to gaining up-to-date information, particularly when information is costly to obtain asocially. Theoretical work predicts that the willingness to switch between using asocial and social sources of information will vary...

["Animal Behavior","Anthropology","Evolutionary Studies"]
doi:10.7287/peerj.preprints.3212v1
10 downloads
58 views

Propensities for different amino acids within a protein site change in the course of evolution, so that an amino acid deleterious in a particular species may be acceptable at the same site in a different species. Here, we study the amino acid-changing variants...

["Evolutionary Studies","Genomics"]
doi:10.7287/peerj.preprints.3211v1
55 downloads
277 views

The development of methods to estimate rates of speciation and extinction from time-calibrated phylogenies has revolutionized evolutionary biology by allowing researchers to correlate diversification rate shifts with causal ecological factors. We use rigorous simulations...

["Bioinformatics","Computational Biology","Evolutionary Studies"]
doi:10.7287/peerj.preprints.3206v1
46 downloads
395 views

During the last two decades, bioerosion of bone has become more widely investigated, with the earliest identified coming from mid-Triassic strata. Bioerosion has even been identified in bone fragments from a Jurassic theropod coprolite. Although the effects of...

["Entomology","Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.3200v2
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