145 downloads
1,001 views

For many years the precise taxonomy of Titanosauria has been a puzzle, and even today only certain segments of this vast clade are well-understood. The phylogenetic positions of many titanosaurs are murky, though specimens often still await rigorous analysis. One...

["Biogeography","Paleontology","Taxonomy"]
doi:10.7287/peerj.preprints.2988v1
201 downloads
2,584 views

Ceratopsids (“horned dinosaurs”) are known from western North America and Asia, a distribution reflecting an inferred subaerial link between the two landmasses during the Late Cretaceous. However, this clade was previously unknown from eastern North America, presumably...

["Biogeography","Paleontology"]
doi:10.7717/peerj.3342
27 downloads
189 views

The ecological niche concept has regained interest under environmental change (e.g., climate change, eutrophication, and habitat destruction), especially to study the impacts on niche shift and conservatism. Here, we propose the within outlying mean indexes (WitOMI),...

["Biogeography","Ecology","Statistics"]
doi:10.7717/peerj.3364
66 downloads
582 views

The genetic structure of bacterial populations can be related to geographical locations of isolation. In some species, there is a strong correlation between geographical distance and genetic distance, which can be caused by different evolutionary mechanisms. Patterns...

["Biogeography","Bioinformatics","Genomics","Microbiology","Epidemiology"]
doi:10.7287/peerj.preprints.2638v2
115 downloads
529 views

Topographically complex regions often contain the close juxtaposition of closely related species along elevational gradients. The evolutionary causes of these elevational replacements, and thus the origin and maintenance of a large portion of species diversity...

["Biodiversity","Biogeography","Zoology"]
doi:10.7717/peerj.3335
64 downloads
268 views

In the present study we investigate the concept of phylogenetic niche conservatism (PNC) within the American species of angraecoid orchids (Campylocentrum and Dendrophylax) and their closest relatives in the Old World (Angraecum) using ecological niche modelling...

["Biodiversity","Biogeography","Ecology","Plant Science"]
doi:10.7717/peerj.3328
63 downloads
317 views

The Early to Late Oligocene Propalaeocastor is the earliest known beaver genus from Eurasia. Although many species of this genus have been described, these species are defined based on very fragmentary specimens. Propalaeocastor irtyshensis from the Early Oligocene...

["Biogeography","Evolutionary Studies","Paleontology","Taxonomy"]
doi:10.7717/peerj.3311
94 downloads
794 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:10.7287/peerj.preprints.2827v4
78 downloads
1,256 views

The phylum Actinobacteria constitutes one of the largest and anciently divergent phyla within the Bacteria domain. Actinobacterial diversity has been thoroughly researched in various environments due to its unique biotechnological potential. Such studies have focused...

["Biodiversity","Biogeography","Ecology","Microbiology"]
doi:10.7717/peerj.3247
107 downloads
626 views

Thousands of vertebrate fossils have been recovered from the Gray Fossil Site, Tennessee, dating to the Miocene-Pliocene boundary. Among these are but eight specimens of bats representing two different taxa referable to the family Vespertilionidae. Comparison of...

["Biogeography","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.3263
98 downloads
661 views

Previous studies of African mole-rats of the genera Heliophobius and Fukomys (Bathyergidae) in the regions of East and south central Africa have revealed a diversity of species and vicariant populations, with patterns of distribution having been influenced by the...

["Biodiversity","Biogeography","Evolutionary Studies","Taxonomy","Zoology"]
doi:10.7717/peerj.3214
55 downloads
317 views

Transition zones are of high evolutionary interest because unique patterns of spatial variation are often retained. Here, we investigated the phylogeography of the peacock blenny, Salaria pavo, a small marine intertidal fish that inhabits rocky habitats of the...

["Aquaculture, Fisheries and Fish Science","Biogeography","Evolutionary Studies","Marine Biology"]
doi:10.7717/peerj.3195
76 downloads
321 views

Although hedgehogs are well-known examples of postglacial recolonisation, the specific processes that shape their population structures have not been examined by detailed sampling and fast-evolving genetic markers in combination with model based clustering methods....

["Biogeography","Genetics","Zoology"]
doi:10.7717/peerj.3163
188 downloads
1,472 views

Determining whether a population is introduced or native to a region can be challenging due to inadequate taxonomy, the presence of cryptic lineages, and poor historical documentation. For taxa with resting stages that bloom episodically, determining origin can...

["Biodiversity","Biogeography","Marine Biology"]
doi:10.7717/peerj.3205
117 downloads
508 views

Background The evolution of South American Mabuyinae skinks holds significant biogeographic interest because its sister lineage is distributed across the African continent and adjacent islands. Moreover, at least one insular species, Trachylepis atlantica, has...

["Biodiversity","Biogeography","Ecology","Genetics"]
doi:10.7717/peerj.3194

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