39 Works

Repository Analytics and Metrics Portal (RAMP) 2018 data

Jonathan Wheeler & Kenning Arlitsch
The Repository Analytics and Metrics Portal (RAMP) is a web service that aggregates use and performance use data of institutional repositories. The data are a subset of data from RAMP, the Repository Analytics and Metrics Portal (http://rampanalytics.org), consisting of data from all participating repositories for the calendar year 2018. For a description of the data collection, processing, and output methods, please see the "methods" section below. Note that the RAMP data model changed in August,...

The importance of environmental conditions in maintaining lineage identity in Epithelantha (Cactaceae)

Alejandra Moreno-Letelier, David Aquino, Miguel A. González-Botello, Salvador Arias, Alejandra Moreno‐Letelier & Miguel A. González‐Botello
The use of environmental variables to explain the evolution of lineages has gained relevance in recent studies. Additionally, it has allowed the recognition of species by adding more characters to morphological and molecular information. This study focuses on identifying environmental and landscape variables that have acted as barriers that could have influenced the evolution of Epithelantha species and its close genera. Our results show that soil pH, isothermality, temperature seasonality, and annual precipitation have a...

A phylogeny of white-eyes based on ultraconserved elements

Michael Andersen, Carl Oliveros & Robert Moyle
White-eyes are an iconic radiation of passerine birds that have been the subject of studies in evolutionary biology, biogeography, and speciation theory. Zosterops white-eyes in particular are thought to have radiated rapidly across continental and insular regions of the Afro- and Indo-Pacific tropics, yet, their phylogenetic history remains equivocal. Here, we sampled 77% of the genera and 47% of known white-eye species and sequenced thousands of ultraconserved elements to infer the phylogeny of the avian...

Repository Analytics and Metrics Portal (RAMP) 2017 data

Jonathan Wheeler & Kenning Arlitsch
The Repository Analytics and Metrics Portal (RAMP) is a web service that aggregates use and performance use data of institutional repositories. The data are a subset of data from RAMP, the Repository Analytics and Metrics Portal (http://rampanalytics.org), consisting of data from all participating repositories for the calendar year 2017. For a description of the data collection, processing, and output methods, please see the "methods" section below.

Data from: Signatures of north-eastern expansion and multiple refugia: Genomic phylogeography of the Pine Barrens Treefrog, Hyla andersonii (Anura: Hylidae)

Alexa Warwick, Lisa Barrow, Megan Smith, D. Bruce Means, Alan Lemmon & Emily Lemmon
Range fragmentation poses challenges for species persistence over time and may be caused by both historical and contemporary processes. We combined genomic data, phylogeographic model testing, and paleoclimate niche modeling to infer the evolutionary history of the Pine Barrens Treefrog (Hyla andersonii), a seepage bog specialist, in eastern North America to better understand the historical context of its fragmented distribution. We sampled H. andersonii populations across the three disjunct regions of the species’ range: Alabama/Florida...

Quantifying niche similarity among new world seed plants--Species Distribution Models (SDMs) & associated metadata

Hector Figueroa, Hannah Marx, CJ Grady, Jim Beach, Ryan Folk, Douglas Soltis, Pamela Soltis, Aimee Stewart & Stephen Smith
Niche shift and conservatism are often framed as mutually exclusive. However, both processes could contribute to biodiversity patterns. We tested this expectation by quantifying the degree of climatic niche similarity among New World seed plants. To incorporate the biological reality that species experience varied abiotic conditions across their range, we assembled distribution models and used these to characterize temperature, precipitation, and elevation niches for species as continuously-valued distributions. We then quantified niche similarity (distributional overlap)...

Supporting data for Climate-driven tree mortality and fuel aridity increase wildfire's potential sensible heat flux

Matthew Hurteau & Goodwin Marissa
Wildfire is capable of rapidly releasing the energy stored in forests, with the amount of water in live and dead biomass acting as a regulator on the amount and rate of energy release. Here we used temperature and fuel moisture data to examine climate-driven changes in fuel moisture content over the past three decades. We then calculated the changes in energy release (energy release component and fire radiant energy) for two forests that experienced drought...

A revised classification of Glossopetalon (Crossosomataceae) based on restriction site-associated DNA sequencing

Maya Allen & Tina Ayers
Glossopetalon inhabits arid regions in the American west and northern Mexico on limestone substrates. The genus comprises four species: G. clokeyi ; G. pungens ; G. texense ; and G. spinescens . Three of the species are narrow endemics. The fourth, G. spinescens , is a widespread species with six recognized varieties. All six varieties are intricately branched shrubs that have been difficult to identify due to a lack of clearly delineating morphological characters. Characters...

Inter- and intra-archipelago dynamics of population structure and gene flow in a Polynesian bird

Ethan Gyllenhaal, Xena Mapel, Tejashree Modak, Lucas DeCicco, Alivereti Naikatini, Ruth Utzurrum, Joshua Seamon, Jean-Claude Thibault, Alice Cibois, Michael Sorenson, Robert Moyle, Lisa Barrow & Michael Andersen
Islands are separated by natural barriers that prevent gene flow between terrestrial populations and promote allopatric diversification. Birds in the South Pacific are an excellent model to explore the interplay between isolation and gene flow due to the region’s numerous archipelagos and well-characterized avian communities. The wattled honeyeater complex (Foulehaio spp.) comprises three allopatric species that are widespread and common across Fiji, Tonga, Samoa, and Wallis and Futuna. Here, we explored patterns of diversification within...

Plant traits and soil fertility mediate productivity losses under extreme drought in C3 grasslands

Wentao Luo, Robert Griffin-Nolan, Wang Ma, Bo Liu, Xiaoan Zuo, Chong Xu, Qiang Yu, Yahuang Luo, Pierre Mariotte, Melinda Smith, Scott Collins, Alan Knapp, Zhengwen Wang & Xingguo Han
Extreme drought decreases aboveground net primary production (ANPP) in most grasslands, but the magnitude of ANPP reductions varies especially in C3-dominated grasslands. Because the mechanisms underlying such differential ecosystem responses to drought are not well-resolved, we experimentally imposed an extreme 4-year drought (2015-2018) in two C3 grasslands that differed in aridity. These sites had similar annual precipitation and dominant grass species (Leymus chinensis) but different annual temperatures and thus water availability. Drought treatments differentially affected...

Supporting Data To: Shark tooth collagen stable isotopes (δ15N and δ13C) as ecological proxies

Oliver Shipley, Gregory Henkes, James Gelsleichter, Clark Morgan, Eric Schneider, Brendan Talwar & Michael Frisk
The isotopic composition of tooth-bound collagen has long been used to reconstruct dietary patterns of animals in extant and paleoecological systems. For sharks that replace teeth rapidly in a conveyor-like system, stable isotopes of tooth collagen (δ13Ctooth & δ15Ntooth) are poorly understood and lacking in ecological context relative to other non-lethally sampled tissues. This tissue holds promise, because shark jaws may preserve isotopic chronologies from which to infer individual-level ecological patterns across a range of...

Limited evidence for a positive relationship between hybridization and diversification across seed plant families

Nora Mitchell & Kenneth Whitney
Hybridization has experimental and observational ties to evolutionary processes and outcomes such as adaptation, speciation, and radiation. Although it has been hypothesized that hybridization and diversification are positively correlated, this idea remains largely untested empirically, and hybridization can also potentially reduce diversity. Here, we use a hybridization database on 170 seed plant families, life history information, and a time-calibrated phylogeny to test for phylogenetically-corrected associations between hybridization and diversification rates, while also taking into account...

Data from: Impact of antecedent soil moisture on runoff from a semiarid catchment

Gerhard Schoener & Mark C. Stone
Antecedent soil moisture is an important factor in the generation of runoff, but guidance for modeling moisture conditions in semiarid catchments is limited and conflicting. In this study, the impact of antecedent moisture was assessed at the plot scale (2.8 m2) using a portable rainfall simulator, and at the catchment scale based on observed precipitation and discharge for a 2.8 km2 watershed in central New Mexico. Performance of three loss models commonly used for hydrologic...

Data from: Monitoring soil moisture at the catchment scale – A novel approach combining antecedent precipitation index and radar-derived rainfall data

Gerhard Schoener & Mark C. Stone
Knowledge about soil moisture is important for event-based rainfall-runoff models but monitoring conditions at the catchment scale is not a trivial task. Soil moisture is highly variable in space and time, particularly in dry climates with seasonal and spatially heterogeneous rainfall. Point measurements are difficult to upscale, and remotely sensed (RS) data often lack in spatial or temporal resolution for local or regional studies. Longer latency periods – the time required before data becomes available...

Registration Year

  • 2021

Resource Types

  • Dataset


  • University of New Mexico
  • University of Kansas
  • Montana State University
  • University of Michigan-Ann Arbor
  • University of Minnesota
  • National Autonomous University of Mexico
  • University of Florida
  • University of Wisconsin–Eau Claire
  • Mississippi State University
  • Pennsylvania State University