Preprints (not yet peer-reviewed)

Natural product libraries are important tools for drug discovery. However, until now, there has not been a system to allow projections of the potential number of hits from creating these libraries. The objective of this study was to develop a stochastic model system...

["Biodiversity","Biotechnology","Microbiology","Drugs and Devices","Computational Science"]
doi:10.7287/peerj.preprints.2734v1
461 downloads
1,607 views

A central challenge in the present era of biodiversity loss is to assess and manage human impacts on freshwater ecosystems. Macroinvertebrates are an ideal group for Environmental Impacts Assessment (EIA). However, generating accurate macroinvertebrate inventories...

["Biodiversity","Bioinformatics","Ecology","Genetics","Molecular Biology"]
doi:10.7287/peerj.preprints.2044v4
23 downloads
143 views

Residence time (τ) is the average amount of time that particles spend in an ecosystem. Often estimated from the ratio of volume to flow rate, τ equates the physical environment with dynamics of growth. Here, we propose that τ is key to understanding relationships...

["Biodiversity","Ecology","Ecosystem Science","Microbiology"]
doi:10.7287/peerj.preprints.2727v1
400 downloads
1,040 views

The "Angiosperm Phylogeny Poster – Flowering Plant Systematics" is an educational tool presenting an overview of the evolutionary relationships among flowering plants according to APG IV and APweb as of 2016. The phylogenetic tree depicts the 64 orders and the...

["Biodiversity","Evolutionary Studies","Plant Science","Taxonomy","Science and Medical Education"]
doi:10.7287/peerj.preprints.2320v3
50 downloads
135 views

We present new information on the distribution of the marsupial frog Gastrotheca testudinea (Jiménez de la Espada, 1870) in Ecuador. We provide the first record from the province of Cañar, and the country’s southernmost locality (which also corresponds to the third...

["Biodiversity","Biogeography","Zoology"]
doi:10.7287/peerj.preprints.2710v1
85 downloads
250 views

The "Tracheophyte Phylogeny Poster – Vascular Plants: Systematics and Characteristics" is an educational tool presenting an overview of the evolutionary relationships among vascular plants as of 2016. The phylogenetic tree depicts orders and families (incl. genera...

["Biodiversity","Evolutionary Studies","Plant Science","Taxonomy","Science and Medical Education"]
doi:10.7287/peerj.preprints.2614v2
13 downloads
38 views

The role of Diadema savignyi in controlling the brown microalga, Sargassum pacificum, was studied on the barrier reef of Mo’orea, French Polynesia. A survey of the area was conducted to determine if there was a trend between the number of D. savignyi and the amount...

["Aquaculture, Fisheries and Fish Science","Biodiversity","Ecology","Ecosystem Science","Marine Biology"]
doi:10.7287/peerj.preprints.2708v1
12 downloads
55 views

Temperature rise from climate change may completely change geological landscapes and environmental conditions at habitats previously conducive for specific animal species. Together with increasing difficulty in coping with greater fluctuations in temperature between...

["Animal Behavior","Biodiversity","Biogeography","Conservation Biology","Zoology"]
doi:10.7287/peerj.preprints.2696v1
3 downloads
53 views

Coral reefs are under pressure from numerous anthropogenic and natural threats. A species of vermetid worm, Dendropoma maxima, has a negative interaction with the corals it lives on. Vermetid worm interactions result in structural homogeneity of reef habitats,...

["Biodiversity","Ecology","Ecosystem Science","Environmental Sciences","Marine Biology"]
doi:10.7287/peerj.preprints.2692v1
14 downloads
76 views

Background. Morphological identification of Pedicularis depends on floral characters because interspecific variations these characters is very large. However, some important characters may be lost during the process of pressing the specimen. Pedicularis delavayi...

["Biodiversity","Evolutionary Studies","Genetics","Plant Science","Taxonomy"]
doi:10.7287/peerj.preprints.2645v2
14 downloads
58 views

Background. Picea chihuahuana, which is endemic to Mexico, is currently listed as “Endangered” on the Red List. Chihuahua spruce is only found in the Sierra Madre Occidental (SMO), Mexico. About 42,600 individuals are distributed in forty populations. The populations...

["Biodiversity","Conservation Biology","Ecology","Genetics","Plant Science"]
doi:10.7287/peerj.preprints.2677v1
15 downloads
33 views

Background. The specific relationships between hosts and epiphytes are fairly unknown. Biotic factors contributing to epiphytic distribution have generally been considered secondary predictors to epiphyte growth and range. Invasive species pose risk to the biodiversity...

["Biodiversity","Ecology","Plant Science"]
doi:10.7287/peerj.preprints.2679v1
40 downloads
117 views

Human expansion has negatively impacted biodiversity. Oceanic islands have some of the most diverse, endemic biodiversity. Endemism leads to vulnerability due to the isolated and discrete nature of oceanic islands. Birds are indicator species that adapt to change...

["Animal Behavior","Biodiversity","Conservation Biology","Ecology","Zoology"]
doi:10.7287/peerj.preprints.2672v1
10 downloads
84 views

Global change is a central issue in many fields of science, particularly related to climate. One impact of climate change is changing weather patterns. This study focuses on the effects of changes in rainfall on freshwater stream ecosystems. Streams on small tropical...

["Aquaculture, Fisheries and Fish Science","Biodiversity","Conservation Biology","Ecosystem Science"]
doi:10.7287/peerj.preprints.2674v1
547 downloads
1,513 views

The largest published data matrix for phylogenetic analysis of Paleozoic limbed vertebrates (Ruta M, Coates MI. 2007. Journal of Systematic Palaeontology 5:69–122) supported variously controversial hypotheses; e.g., it recovered Seymouriamorpha, Diadectomorpha...

["Biodiversity","Ecology","Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.1596v2
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