126 Works

Data from: Climate change impacts on bumblebees converge across continents

Jeremy T. Kerr, Alana Pindar, Paul Galpern, Laurence Packer, Stuart M. Roberts, Pierre Rasmont, Oliver Schweiger, Sheila R. Colla, Leif L. Richardson, David L. Wagner, Lawrence F. Gall, Derek S. Sikes & Alberto Pantoja
For many species, geographical ranges are expanding toward the poles in response to climate change, while remaining stable along range edges nearest the equator. Using long-term observations across Europe and North America over 110 years, we tested for climate change–related range shifts in bumblebee species across the full extents of their latitudinal and thermal limits and movements along elevation gradients. We found cross-continentally consistent trends in failures to track warming through time at species’ northern...

Data from: High levels of diversity and population structure in the potato late blight pathogen at the Mexico center of origin

Jianan Wang, Sylvia P. Fernândez-Pavía, Meredith M. Larsen, Edith Garay-Serrano, Rosario Gregorio-Cipriano, Gerardo Rodríguez-Alvarado, Niklaus J. Grünwald & Erica M. Goss
Globally destructive crop pathogens often emerge by migrating out of their native ranges. These pathogens are often diverse at their center of origin, and may exhibit adaptive variation in the invaded range via multiple introductions from different source populations. However, source populations are generally unidentified or poorly studied compared to invasive populations. Phytophthora infestans, the causal agent of late blight, is one of the most costly pathogens of potato and tomato worldwide. Mexico is the...

Data from: Mapping and expression of candidate genes for development rate in rainbow trout (Oncorhynchus mykiss)

Matthew C. Hale, John A. Colletti, Scott A. Gahr, Julie Scardina, Frank P. Thrower, Matthew Harmon, Megan Carter, Ruth B. Phillips, Gary H. Thorgaard, Caird E. Rexroad & Krista M. Nichols
Development rate has important implications for individual fitness and physiology. In salmonid fishes, development rate correlates with many traits later in life, including life history diversity, growth, and age and size at sexual maturation. In rainbow trout (Oncorhynchus mykiss), a Quantitative Trait Locus (QTL) for embryonic development rate has been detected on chromosome 5 across populations. However, few candidate genes have been identified within this region. In this study, we use gene mapping, gene expression,...

Long-term evidence shows crop-rotation diversification increases agricultural resilience to adverse growing conditions in North America

Timothy Bowles, Maria Mooshammer, Yvonne Socolar, Franciso Calderón, Michel Cavigelli, Steve Culman, William Dean, Axel Garcia Y Garcia, Amélie Gaudin, W Scott Harkom, Michael Lehman, Shannon Osborne, G Philip Robertson, Jonathan Salerno, Marty Schmer, Jeffrey Strock, A Stuart Grandy & Craig Drury
A grand challenge facing humanity is how to produce food for a growing population in the face of a changing climate and environmental degradation. Though empirical evidence remains sparse, management strategies that increase environmental sustainability, like increasing agroecosystem diversity through crop rotations, may also increase resilience to weather extremes without sacrificing yields. We used multilevel regression analyses of long-term crop yield datasets across a continental precipitation gradient to assess how temporal crop diversification affects maize...

Optical maps refine the bread wheat Triticum aestivum cv Chinese Spring genome assembly

Tingting Zhu, Le Wang, Hélène Rimbert, Juan Rodriguez, Karin Deal, Romain De Oliveira, Frédéric Choulet, Gabriel Keeble-Gagnère, Josquin Tibbits, Jane Rogers, Kellye Eversole, Rudi Appels, Yong Gu, Martin Mascher, Jan Dvorak, Ming-Cheng Luo, Juan C. Rodriguez, Karin R. Deal, Gabriel Keeble‐Gagnère, Yong Q. Gu & Ming‐Cheng Luo
This dataset contains a single whole-genome optical map file (.CMAP) for bread wheat (Triticum aestivum) cv Chinese Spring (CS). The methods for constructing this optical map and the properties of this map are described below. The definition of the CMAP format is documented in https://bionanogenomics.com/wp-content/uploads/2017/03/30039-CMAP-File-Format-Specification-Sheet.pdf. The extracted ultra-high-molecular weight DNA molecules of CS were labeled with the DLE-1 enzyme (Bionano Genomics, San Diego, CA, USA) and were then stained with the Bionano PrepTM DLS Kit...

Sustainable use of groundwater may dramatically reduce irrigated production of maize, soybean, and wheat

Jose R. Lopez, Jonathan M. Winter, Joshua Elliott, Alex C. Ruane, Cheryl Porter, Gerrit Hoogenboom, Martha Anderson & Christopher Hain
Groundwater extraction in the United States (US) is unsustainable, making it essential to understand the impacts of limited water use on irrigated agriculture. Here, we integrate a gridded crop model with satellite observations, recharge estimates, and water survey data to assess the effects of sustainable groundwater withdrawals on US irrigated agricultural production. Our model agrees with satellite-based estimates of evapotranspiration (R2 = 0.68), as well as survey production estimates from the United States Department of...

GapAnalysis: An R package to calculate conservation indicators using spatial information

Julian Ramirez-Villegas, Daniel Carver, Chrystian Sosa, Colin Khoury, Harold Achicanoy, Maria Victoria Diaz, Steven Sotelo & Nora Castaneda-Alvarez
Effective assessments of the current status of biodiversity conservation are needed to support planning, policy, and action, from local to global levels. Of particular use would be well documented, reproducible methods based on openly accessible data and tools. Such methods should provide an accurate estimate of the state of conservation of diversity, identifying gaps in current conservation systems, while providing a benchmark against which to measure success, including determining when conservation goals have been met....

Host plant defense produces species-specific alterations to flight muscle protein structure and flight-related fitness traits of two armyworms

Scott Portman
Insects manifest phenotypic plasticity in their development and behavior in response to plant defenses, via molecular mechanisms that produce tissue-specific changes. Phenotypic changes might vary between species that differ in their preferred hosts and these effects could extend beyond larval stages. To test this, we manipulated the diet of southern armyworm (SAW; Spodoptera eridania) and fall armyworm (FAW; Spodoptera frugiperda) using a tomatomutant for jasmonic acid plant defense pathway (def1), and wild-type plants, and then...

Data from: Influence of canopy openness, ungulate exclosure, and low-intensity fire for improved oak regeneration in temperate Europe

Linda Petersson, Daniel Dey, Annika Felton, Emile Gardiner & Magnus Löf
Failed oak regeneration is widely reported in temperate forests and has been linked in part to changed disturbance regimes and land-use. We investigated if the North American fire-oak hypothesis could be applicable to temperate European oaks (Q. robur, Q. petraea) using a replicated field experiment with contrasting canopy openness, protection against ungulate browsing (fencing/no fencing), and low-intensity surface fire (burn/no burn). Survival, relative height growth (RGRH), browsing damage on naturally regenerated oaks (≤300 cm tall),...

Data from: Latent developmental and evolutionary shapes embedded within the grapevine leaf

Dan Chitwood, Robert VanBuren, Zoë Migicovsky, Margaret Frank & Jason Londo
Across plants, leaves exhibit profound diversity in shape. As a single leaf expands, its shape is in constant flux. Plants may also produce leaves with different shapes at successive nodes. In addition, leaf shape varies among individuals, populations and species as a result of evolutionary processes and environmental influences. Because leaf shape can vary in many different ways, theoretically, the effects of distinct developmental and evolutionary processes are separable, even within the shape of a...

Data From: TERRA-REF, An open reference data set from high resolution genomics, phenomics, and imaging sensors

David LeBauer, Burnette Maxwell, Jeffrey Demieville, Noah Fahlgren, Andrew French, Roman Garnett, Zhenbin Hu, Kimberly Huynh, Rob Kooper, Zongyang Li, Maitiniyazi Maimaitijiang, Jerome Mao, Todd Mockler, Geoffrey Morris, Maria Newcomb, Michael Ottman, Philip Ozersky, Sidike Paheding, Duke Pauli, Robert Pless, Wei Qin, Kristina Riemer, Gareth Rohde, William Rooney, Vasit Sagan … & Charles Zender
The ARPA-E funded TERRA-REF project is generating open-access reference datasets for the study of plant sensing, genomics, and phenomics. Sensor data were generated by a field scanner sensing platform that captures color, thermal, hyperspectral, and active flourescence imagery as well as three dimensional structure and associated environmental measurements. This dataset is provided alongside data collected using traditional field methods in order to support calibration and validation of algorithms used to extract plot level phenotypes from...

Data from: Tropical understory herbaceous community responds more strongly to hurricane disturbance than to experimental warming

Deborah Kennard, David Matlaga, Joanne Sharpe, Clay King, Aura Alonso-Rodríguez, Sasha Reed, Molly Cavaleri & Tana Wood
The effects of climate change on tropical forests may have global consequences due to the forests’ high biodiversity and major role in the global carbon cycle. In this study, we document the effects of experimental warming on the abundance and composition of a tropical forest floor herbaceous plant community in the Luquillo Experimental Forest, Puerto Rico. This study was conducted within Tropical Responses to Altered Climate Experiment (TRACE) plots, which use infrared heaters under free-air,...

Performance and refinement of nitrogen fertilization tools

Curtis Ransom, Jason Clark, Gregory Bean, Christopher Bandura, Matthew Shafer, Newell Kitchen, James Camberato, Paul Carter, Richard Ferguson, Fabián Fernández, David Franzen, Carrie Laboski, David Myers, Emerson Nafziger & John Sawyer
Improving corn (Zea mays L.) N management is pertinent to economic and environmental objectives. However, there are limited comprehensive data sources to develop and test N fertilizer decision aid tools across a wide geographic range of soil and weather scenarios. Therefore, a public-industry partnership was formed to conduct standardized corn N rate response field studies throughout the U.S. Midwest. This research was conducted using a standardized protocol at 49 site-years across eight states over the...

Exploratory surveys in Taiwan of the roseau cane scale Nipponaclerda biwakoensis Kuwana and its associated parasitoids

, Cheng-Lung Chu, Hannah Broadley, Michael Gates, Yong-Sin Lo, Yu-Chun Chen, Kim Hoelmer, Juli Gould & Shaw-Yhi Hwang
Roseau cane (Phragmites australis (Cav). Trin. ex Steud.) is the dominant plant species of the Mississippi River Delta in Louisiana, USA, and protects marsh communities from erosion and storm-related impacts, maintaining shipping channels and oil infrastructure. Widespread dieback and thinning of P. australis were noted in the Mississippi River Delta in the fall of 2016. Invasive populations of the roseau cane scale (Nipponaclerda biwakoensis Kuwana), which is native to Asia, were found at outbreak levels...

UCE Phylogenomics resolves major relationships among Ectaheteromorph ants (Hymenoptera: Formicidae: Ectatomminae, Heteroponerinae): A new classification for the subfamilies and the description of a new genus

G P Camacho, W Franco, M G Branstetter, M R Pie, J T Longino, T R Schultz & R M Feitosa
Uncovering the evolutionary history of the subfamilies Ectatomminae and Heteroponerinae, or ectaheteromorphs, is key to understanding a major branch of the ant tree of life. Despite their diversity and ecological importance, phylogenetic relationships in the group have not been well explored. One particularly suitable tool for resolving phylogeny is the use of ultraconserved elements (UCEs), which have been shown to be ideal markers at a variety of evolutionary time scales. In the present study, we...

Data from: Chemical extraction of phosphorus from dairy manure and utilization of recovered manure solids

Ariel A. Szogi, Virginia H. Takata & Paul D. Shumaker
This is digital research data corresponding to a published manuscript, Chemical extraction of phosphorus from dairy manure and utilization of recovered manure solids. Agronomy 2020, 10, 1725; doi:10.3390/agronomy10111725 Repeated land application of dairy manure can increase soil phosphorus above crop requirements because of manure’s low nitrogen (N) to phosphorus (P) ratio (N:P < 4:1). This soil P build-up can lead to off-site P transport and impairment of surface water quality. We evaluated a treatment process...

Phylogeography and population genetics of pine butterflies: sky islands increase genetic divergence

Dale Halbritter, Caroline Storer, Akito Kawahara & Jaret Daniels
The sky islands of southeastern Arizona (AZ) mark a major transition zone between tropical and temperate biota and are considered a neglected biodiversity hotspot. Dispersal ability and host plant specificity are thought to impact the history and diversity of insect populations across the sky islands. We aimed to investigate the population structure and phylogeography of two pine-feeding pierid butterflies, the pine white (Neophasia menapia) and the Mexican pine white (N. terlooii), restricted to these "islands"...

Data from: Genetic diversity and conservation status of Helianthus verticillatus, an endangered sunflower of the Southern United States

Tyler Edwards, Robert Trigiano, Bonnie Ownley, Alan Windham, Christopher Wyman, Phillip Wadl & Denita Hadziabdic
Evaluating species diversity and patterns of population genetic variation is an essential aspect of conservation biology to determine appropriate management strategies and preserve the biodiversity of native plants. Habitat fragmentation and potential habitat loss are often an outcome of a reduction in naturally occurring wildfires and controlled prescribed burning, as seen in Helianthus verticillatus (whorled sunflower). This endangered, wild relative of the common sunflower, Helianthus annuus, is endemic to four locations in Alabama, Georgia, and...

Mixed ancestry from wild and domestic lineages contributes to the rapid expansion of invasive feral swine

Timothy Smyser, Michael Tabak, Chris Slootmaker, Michael Robeson, Ryan Miller, Mirte Bosse, Hendrik-Jan Megens, Martien Groenen, Samuel Paiva, Danielle Assis De Faria, Harvey Blackburn, Brandon Schmit & Antoinette Piaggio
Invasive alien species are a significant threat to both economic and ecological systems. Identifying processes that give rise to invasive populations is essential for implementing effective control strategies. We conducted an ancestry analysis of invasive feral swine (Sus scrofa, Linnaeus, 1758), a highly destructive ungulate that is widely distributed throughout the contiguous United States, to describe introduction pathways, sources of newly-emergent populations, and processes contributing to an ongoing invasion. Comparisons of high-density single nucleotide polymorphism...

Data from: Evapotranspiration response to multiyear dry periods in the semiarid western United States

Joseph Rungee, Roger Bales, Michael Goulden, Gerald Flerchinger, Greg Barron-Gafford & Xiande Meng
Analysis of measured evapotranspiration shows that subsurface plant‐accessible water storage (PAWS) can sustain evapotranspiration through multiyear dry periods. Measurements at 25 flux tower sites in the semiarid western United States, distributed across five land cover types, show both resistance and vulnerability to multiyear dry periods. Average (±standard deviation) evapotranspiration ranged from 660 ± 230 mm yr−1 (October–September) in evergreen needleleaf forests to 310 ± 200 mm yr−1 in grasslands and shrublands. More than 52% of...

Photochemical Reflectance Index (PRI) captures the ecohydrological sensitivity of a semi-arid mixed conifer forest

Julia Yang, Greg Barron-Gafford, William Smith, Dong Yan, Russell Scott & John Knowles
The Photochemical Reflectance Index (PRI) corresponds to the de-epoxidation state of the xanthophyll cycle and is one of the few pigment-based vegetation indices sensitive to rapid plant physiological responses. As such, new remotely-sensed PRI products present opportunities to study diurnal and seasonal processes in evergreen conifer forests, where complex vegetation dynamics are not well reflected by the small annual changes in chlorophyll content or leaf structure. Because PRI is tied explicitly to short and long...

Supporting Data and Code for \"Managing to Climatology: Improving semi-arid agricultural risk management using crop models and a dense meteorological network\"

Steven Mauget & Donna Mitchell-McCallister
Without reliable seasonal climate forecasts, farmers and managers in other weather-sensitive sectors might adopt practices that are optimal for recent climate conditions. To demonstrate this principle, crop simulation models driven by a dense meteorological network were used to identify climate-optimal planting dates for U.S. Southern High Plains (SHP) un-irrigated agriculture. This method converted large samples of SHP growing season weather outcomes into climate-representative cotton and sorghum yield distributions over a range of planting dates. Best...

Bull trout concealment experimental data

James Peterson & Russell Thurow
Bull trout (Salvelinus confluentus) are challenging to detect as a result of the species cryptic behavior and coloration, relatively low densities in complex habitats, and affinity for cold, high clarity, low conductivity waters. Bull trout are also closely associated with the stream bed, frequently conceal in substrate, and this concealment behavior is poorly understood. Consequently, population assessments are problematic and biologists and managers often lack quantitative information to accurately describe bull trout distributions, estimate abundance,...

Data from: Colonization history and population differentiation of the Honey Bees (Apis mellifera L.) in Puerto Rico

Jenny P. Acevedo-Gonzalez, Alberto Galindo-Cardona, Arian Avalos, Charles W. Whitfield, Dania M. Rodriguez, Jose L. Uribe-Rubio & Tugrul Giray
Honey bees (Apis mellifera L.) are the primary commercial pollinators across the world. The subspecies A. m. scutellata originated in Africa and was introduced to the Americas in 1956. For the last 60 years it hybridized successfully with European subspecies, previous residents in the area. The result of this hybridization was called Africanized Honey Bee (AHB). AHB has spread since then, arriving to Puerto Rico (PR) in 1994. The honey bee population on the island...

Shortgrass steppe and northern mixedgrass prairie plant species traits

Dana Blumenthal, Julie Kray, Kevin Mueller & Troy Ocheltree
Despite progress in trait-based ecology, there is limited understanding of the plant traits that structure semiarid grasslands. In particular, it remains unclear how traits that enable plants to cope with water limitation are related to traits that influence other key functions such as herbivore defense and growth. The hypothesis that drought and herbivory exert convergent selection pressures is supported for morphological traits, but largely untested for struct­ural, physiological, and phenological traits. Drought and economic traits...

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  • Agricultural Research Service
  • United States Department of Agriculture
  • University of Minnesota
  • University of California, Davis
  • The University of Texas at Austin
  • Oregon State University
  • University of Vermont
  • University of Florida
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  • University of Arizona