Total of 258 results Filter on subject area
biogeography
53 downloads
238 views

Triassic vertebrate tracks are known from the beginning of the 19th century and have a worldwide distribution. Several Triassic track ichnoassemblages and ichnotaxa have a restricted stratigraphic range and are useful in biochronology and biostratigraphy. The record...

["Biogeography","Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.933v1
146 downloads
159 views

Across landscapes, riparian plant communities assemble under varying levels of disturbance, environmental stress, and resource availability, leading to the development of distinct riparian life-history guilds. Identifying the environmental filters that exert selective...

["Biogeography","Conservation Biology","Ecology","Environmental Sciences","Plant Science"]
doi:10.7287/peerj.preprints.653v2
64 downloads
57 views

Here we investigate relationships between NDVI, Biomass, and Leaf Area Index (LAI) for six key plant species near Barrow, Alaska. We explore how key plant species differ in biomass, leaf area index (LAI) and how can vegetation spectral indices be used to estimate...

["Biodiversity","Biogeography","Ecology","Ecosystem Science","Environmental Sciences"]
doi:10.7287/peerj.preprints.913v1
329 downloads
535 views

Originally identified as an ornithischian dinosaur, Crosbysaurus harrisae has been found in New Mexico, Arizona, and its type locality in Texas, as well as in North Carolina. The genus has been reassessed by other workers in light of reinterpretations about the...

["Biogeography","Paleontology"]
doi:10.7287/peerj.preprints.537v3
40 downloads
40 views

Silene ciliata Pourr. (Caryophyllaceae) is a species with a highly disjunct distribution that inhabits the alpine mountains of the Mediterranean Basin. We investigated the phylogeny and phylogeography of the species in an attempt to a) clarify the long suggested...

["Biogeography","Evolutionary Studies","Genetics","Plant Science","Taxonomy"]
doi:10.7287/peerj.preprints.889v1
94 downloads
60 views

Stream classification provide a means to understand the diversity and distributions of channel and floodplains that occur across a landscape while drawing linkages between geomorphic form and process. Accordingly, stream classification is frequently employed as...

["Aquaculture, Fisheries and Fish Science","Biogeography","Ecology","Ecosystem Science","Environmental Sciences"]
doi:10.7287/peerj.preprints.885v1
41 downloads
57 views

The association of species distribution and environmental variables is often complex, with nonlinear and interacting effects. Bayesian hierarchical models can quantify linear and high order effects of the variables, as well as their interaction effects. Their strength...

["Biogeography","Conservation Biology","Ecology","Statistics"]
doi:10.7287/peerj.preprints.871v1
283 downloads
204 views

Severe gaps and biases in digital accessible information (DAI) of species distributions hamper prospects of safeguarding biodiversity and ecosystem services and reliably addressing central questions in ecology and evolution. Accordingly, governments have agreed...

["Biodiversity","Biogeography","Bioinformatics","Conservation Biology","Ecology"]
doi:10.7287/peerj.preprints.856v1
182 downloads
758 views

Marsupials or metatherians are a group of mammals that are distinct in giving birth to young at early stages of development and in having a prolonged investment in lactation. The group consists of nearly 350 extant species, including kangaroos, koala, possums,...

["Biodiversity","Biogeography","Evolutionary Studies","Taxonomy","Zoology"]
doi:10.7717/peerj.805
68 downloads
220 views

High-fecundity organisms, such as Atlantic cod, can withstand substantial natural selection and the entailing genetic load of replacing alleles at a number of loci due to their excess reproductive capacity. High-fecundity organisms may reproduce by sweepstakes...

["Aquaculture, Fisheries and Fish Science","Biogeography","Evolutionary Studies","Genetics","Marine Biology"]
doi:10.7717/peerj.786
102 downloads
271 views

The Kayenta Formation has yielded numerous tetrapod fossils, including, amphibians, theropods, prosauropods, ornithischians, crocodylomorphs, sphenodonts, tritylodonts, pterosaurs, turtles, and rare mammals. Despite the phylogenetic diversity of the preserved animals,...

["Biogeography","Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.848v1
139 downloads
312 views

The Permo-Triassic archosauromorph record is crucial to understand the impact of the Permo-Triassic mass extinction on the early evolution of the group and its subsequent dominance in Mesozoic terrestrial ecosystems. However, the Permo-Triassic archosauromorph...

["Biogeography","Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.776
83 downloads
112 views

GPT (Global Positioning Trees) is a web-server that maps phylogenetic trees on a virtual globe. The minimum requirements are a phylogenetic tree and geographical coordinates of leaves to generate a Keyhole Markup Language (KML) file that can be viewed on Google...

["Biogeography","Computational Biology","Evolutionary Studies","Epidemiology","Global Health"]
doi:10.7287/peerj.preprints.840v1
114 downloads
159 views

Environmental homogenization in coastal ecosystems impacted by human activities may be an important factor explaining the observed decline in fish species richness. We used fish community data (>200 species) from extensive surveys conducted in two biogeographic...

["Biodiversity","Biogeography","Conservation Biology","Ecology","Environmental Sciences"]
doi:10.7717/peerj.760
175 downloads
476 views

Morphological variation in the geographically widespread coral Porites lobata can make it difficult to distinguish from other massive congeneric species. This morphological variation could be attributed to geographic variability, phenotypic plasticity, or a combination...

["Biodiversity","Biogeography","Conservation Biology","Marine Biology","Taxonomy"]
doi:10.7717/peerj.751

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