6 Works

A basic ddRADseq two-enzyme protocol performs well in herbarium and silica-dried tissues across four genera

Ingrid Jordon-Thaden, James Beck, Catherine Rushworth, Michael Windham, Nicolas Diaz, Jason Cantley, Chris Martine & Carl Rothfels
Premise of the study: The ability to sequence genome-scale data from herbarium specimens would allow for the economical development of broad datasets with taxonomic and geographic sampling not otherwise possible. Here we evaluate the utility of a basic restriction site-associated DNA (ddRADseq) protocol with DNAs from four genera extracted from both silica-dried and herbarium tissue. Methods: DNAs from Draba, Boechera, Solidago, and Ilex were processed with a double-digest restriction-site associated DNA sequencing (ddRADseq) protocol. The...

Molecular dynamics trajectories for ionic conductors in: Paradigms of frustration in superionic solid electrolytes

Brandon Wood, Joel Varley, Kyoung Kweon, Patrick Shea, Alex Hall, Andrew Grieder, Michael Ward, Vincent Aguirre, Dylan Ringling, Eduardo Ventura, Chimara Stancill & Nicole Adelstein
Superionic solid electrolytes have widespread use in energy devices, but the fundamental motivations for fast ion conduction are often elusive. Here, we draw upon atomistic simulations of a wide range of halide, oxide, sulfide, and closo-borate superionic conductors to illustrate some of the key features that enhance local cation mobility in these solids. We classify three types of frustration that create competition between different local atomic preferences, thereby flattening the diffusive energy landscape and enhancing...

Data from: Temporal scale-dependence of plant-pollinator networks

Benjamin Schwarz, Diego Vázquez, Paul CaraDonna, Tiffany Knight, Gita Benadi, Carsten Dormann, Benoit Gauzens, Elena Motivans, Julian Resasco, Nico Blüthgen, Laura Burkle, Qiang Fang, Christopher Kaiser-Bunbury, Ruben Alarcón, Justin Bain, Natacha Chacoff, Shuang-Quan Huang, Gretchen LeBuhn, Molly MacLeod, Theodora Petanidou, Claus Rasmussen, Michael Simanonok, Amibeth Thompson, Daniel Cariveau, Michael Roswell … & Jochen Fründ
The study of mutualistic interaction networks has led to valuable insights into ecological and evolutionary processes. However, our understanding of network structure may depend upon the temporal scale at which we sample and analyze network data. To date, we lack a comprehensive assessment of the temporal scale-dependence of network structure across a wide range of temporal scales and geographic locations. If network structure is temporally scale-dependent, networks constructed over different temporal scales may provide very...

Genetic Adaptation in New York City Rats

Arbel Harpak, Nandita Garud, Noah Rosenberg, Dmitri Petrov, Pleuni Pennings & Jason Munshi-South
Brown rats (Rattus norvegicus) thrive in urban environments by navigating the anthropocentric environment and taking advantage of human resources and by-products. From the human perspective, rats are a chronic problem that causes billions of dollars in damage to agriculture, health and infrastructure. Did genetic adaptation play a role in the spread of rats in cities? To approach this question, we collected whole-genome sequences from 29 brown rats from New York City (NYC) and scanned for...

Data from: Habitat modeling of Irrawaddy dolphins (Orcaella brevirostris) in the eastern Gulf of Thailand

Justine Jackson-Ricketts, Chalatip Junchompoo, Ellen Hines, Elliot Hazen, Louisa Ponnampalam, Anoukchika Ilangakoon & Somchai Monanunsap
Aim: The Irrawaddy dolphin (Orcaella brevirostris) is an endangered cetacean found throughout Southeast Asia. The main threat to this species is human encroachment, led by entanglement in fishing gear. Information on this data-poor species’ ecology and habitat use is needed to effectively inform spatial management. Location: We investigated the habitat of a previously unstudied group of Irrawaddy dolphins in the eastern Gulf of Thailand, between the villages of Laem Klat and Khlong Yai, in Trat...

Allopatry, hybridization, and reproductive isolation in Arctostaphylos: phenology and field morphology

V. Thomas Parker
Premise of the study: Hybridization plays a key role in introgressive adaptation, speciation, and adaptive radiation as a source of evolutionary innovation. Hybridization is considered common in Arctostaphylos, yet species boundaries are retained in stands containing multiple species. Arctostaphylos contains diploids and tetraploids, and recent phylogenies indicate two clades; we hypothesize combinations of these traits limit or promote hybridization rates. Methods: We statistically analyzed co-occurrence patterns of species by clade membership and ploidy level from...

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