Peer-reviewed Articles - Biology

111 downloads
1,013 views

Background Tar seep deposits in South America historically are well-known for their rich record of fossil mammals, contrasting with only a few formal reports of reptile remains. Here we report a new snake fauna recovered from two tar pits from Venezuela. The fossil...

["Biogeography","Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.5402
58 downloads
278 views

We investigated a pantropical sub-family and genus of damselfishes, the sergeant-majors (Pomacentridae: Abudefdufinae: Abudefduf), to identify the tempo and mechanisms of speciation in the lineage. We examined sequence capture data from 500 loci and 20 species,...

["Biodiversity","Biogeography","Zoology"]
doi:10.7717/peerj.5357
88 downloads
354 views

The distribution of biodiversity within the Amazon basin is often structured by sharp environmental boundaries, such as large rivers. The Amazon region is also characterized by subtle environmental clines, but how they might affect the distributions and abundance...

["Biogeography","Conservation Biology","Ecology","Environmental Impacts","Population Biology"]
doi:10.7717/peerj.5424
54 downloads
358 views

Many species of fish produce larvae that undergo a prolonged dispersal phase. However, evidence from a number of recent studies on demersal fishes suggests that the dispersal of propagules may not be strongly correlated with gene flow. Instead, other factors like...

["Biogeography","Ecology","Marine Biology","Population Biology"]
doi:10.7717/peerj.5380
55 downloads
209 views

Background Invasive species are a growing threat to food biosecurity and cause significant economic losses in agricultural systems. Despite their damaging effect, they are attractive models for the study of evolution and adaptation in newly colonised environments....

["Biogeography","Ecology","Genetics","Population Biology"]
doi:10.7717/peerj.5340
66 downloads
288 views

Genome-scale diversity data are increasingly available in a variety of biological systems, and can be used to reconstruct the past evolutionary history of species divergence. However, extracting the full demographic information from these data is not trivial, and...

["Biogeography","Computational Biology","Evolutionary Studies","Genetics"]
doi:10.7717/peerj.5198
120 downloads
1,186 views

Background The water rat Nectomys squamipes (Cricetidae: Sigmodontinae) is a semiaquatic rodent from eastern South America that shows shallow genetic structure across space, according to some studies. We tested the influence of hydrography and climatic changes...

["Biogeography","Evolutionary Studies","Zoology"]
doi:10.7717/peerj.5333
666 downloads
7,952 views

A set of associated left pedal elements of a sauropod dinosaur from the Upper Jurassic Morrison Formation in Weston County, Wyoming, is described here. Several camarasaurids, a nearly complete small brachiosaur, and a small diplodocid have been found at this locality,...

["Biogeography","Paleontology"]
doi:10.7717/peerj.5250
58 downloads
189 views

Relationships between phylogenetic relatedness, hybrid zone spatial structure, the amount of interspecific gene flow and population demography were investigated, with the newt genus Triturus as a model system. In earlier work, a bimodal hybrid zone of two distantly...

["Biogeography","Evolutionary Studies","Genetics","Zoology"]
doi:10.7717/peerj.5317
82 downloads
318 views

Background Aquatic subterranean species often exhibit disjunct distributions, with high level of endemism and small range, shaped by vicariance, limited dispersal, and evolutionary rates. We studied the disjunct biogeographic patterns of an endangered blind cave...

["Biodiversity","Biogeography","Evolutionary Studies","Zoology","Freshwater Biology"]
doi:10.7717/peerj.5268
1 citation
540 downloads
2,507 views

We present the first comprehensive review of the present and past shark and ray diversity in marine waters of Tropical America, examining the patterns of distribution in the Eastern Central Pacific (EP) and Western Central Atlantic (WA) realms. We identified the...

["Biodiversity","Biogeography","Paleontology"]
doi:10.7717/peerj.5313
1,174 downloads
12,823 views

A partial ankylosaurid skeleton from the upper Campanian Kaiparowits Formation of southern Utah is recognized as a new taxon, Akainacephalus johnsoni, gen. et sp. nov. The new taxon documents the first record of an associated ankylosaurid skull and postcranial...

["Biodiversity","Biogeography","Evolutionary Studies","Paleontology","Taxonomy"]
doi:10.7717/peerj.5016
1 citation
206 downloads
693 views

The methods used to detect and describe morphologically cryptic species have advanced in recent years, owing to the integrative nature of molecular and morphological techniques required to elucidate them. Here we integrate recent phylogenomic work that sequenced...

["Biodiversity","Biogeography","Genetics","Taxonomy","Zoology"]
doi:10.7717/peerj.5334
80 downloads
917 views

Nitraria is a halophytic taxon (i.e., adapted to saline environments) that belongs to the plant family Nitrariaceae and is distributed from the Mediterranean, across Asia into the south-eastern tip of Australia. This taxon is thought to have originated in Asia...

["Biogeography","Evolutionary Studies","Molecular Biology","Paleontology"]
doi:10.7717/peerj.5055
81 downloads
504 views

Background Climate change is one of the greatest threats to biodiversity, pushing species to shift their distribution ranges and making existing protected areas inadequate. Estimating species distribution and potential modifications under climate change are then...

["Biogeography","Conservation Biology","Ecology","Climate Change Biology","Natural Resource Management"]
doi:10.7717/peerj.5222

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