13 Works

Scaling of locomotor muscle oxidative and glycolytic metabolic enzymes during the ontogeny of regional endothermy in Pacific bluefin tuna (Thunnus orientalis)

Arif Malik, Kathryn Dickson, Takashi Kitagawa, Ko Fujioka, Ethan Estess, Charles Farwell & Kathryn Schuller
In this study, the scaling of the oxidative metabolic enzymes citrate synthase (CS) and cytochrome c oxidase (COX) and the glycolytic enzyme pyruvate kinase (PK) in the red (‘slow-twitch’, oxidative) and the white (‘fast-twitch’, glycolytic) locomotor muscle of young (~2 to ~16 months of age) Pacific bluefin tuna (Thunnus orientalis) during the ontogeny of red muscle endothermy was investigated. On a mass-specific basis (units g-1 muscle tissue), CS activity scaled negatively with body mass with...

Data from: The structure of the Mini-K and K-SF-42: a psychological network approach

Joseph Manson, Kristine Chua & Aaron Lukaszewski
Study-1-data and Study-2-data comprise responses to the Mini-K (Figueredo et al. 2006). The Study 1 participants were Amazon's Mechanincal Turk workers. The Study 2 participants were undergraduates at Oklahoma State University. Study-3-data comprises reponses to the K-SF-42 (Figueredo et al. 2017). Participants were Amazon's Mechanincal Turk workers. See the paper for additional information. R-code contains the code used to run the network analyses described in the paper. "Datafile" represents the file name of the data...

Geophyte ecophysiology and traits

Kerri Mocko & Cynthia Jones
Premise of the study: In semi-arid regions, decreasing rainfall presents a challenge to perennial seedlings that must reach sufficient size to survive the first year’s seasonal drought. Attaining a large storage organ size has been hypothesized to enhance drought resilience in geophytes, but building larger storage organs requires greater growth rates, and paradoxically, some traits conferring faster growth are highly sensitive to drought. We examine if tuber size confers greater drought resilience in seedlings of...

Data for: Spatial and temporal genetic variation in an exploited reef fish: The effects of exploitation on cohort genetic structure

Zahra Taboun, Ryan Walter, Jennifer Ovenden & Daniel Heath
Many coral reef fishes are fished, often resulting in detrimental genetic effects; however, reef fishes often show unpredictable patterns of genetic variation, which potentially mask the effects of fishing. Our goals were to characterize spatial and temporal genetic variation and determine the effects of fishing on an exploited reef fish, Plectropomus leopardus, Lacepède (the common coral trout). To determine population structure, we genotyped 417 Great Barrier Reef coral trout from four populations sampled in two...

Predicting death by the loss of intestinal function

Kathreen Bitner, Mueller Laurence, Parvin Shahrestani & Evan Pardue
The ability to predict when an individual will die can be extremely useful for many research problems in aging. A technique for predicting death in the model organism, Drosophila melanogaster , has been proposed which relies on an increase in the permeability of the fly intestinal system, allowing dyes from the diet to permeate the body of the fly shortly before death. In this study we sought to verify this claim in a large cohort...

Data from: Games academics play and their consequences: how authorship, h-index, and journal impact factors are shaping the future of academia

Jan Gogarten, Colin Chapman, Julio Bicca-Marques, Sébastien Calvignac-Spencer, Pengfei Fan, Peter Fashing, Songtao Guo, Claire Hemingway, Fabian Leendertz, Baoguo Li, Ikki Matsuda, Rong Hou, Juan Carlos Serio-Silva & Nils Chr. Stenseth
Research is a highly competitive profession where evaluation plays a central role; journals are ranked and individuals are evaluated based on their publication number, the number of times they are cited, and their h-index. Yet, such evaluations are often done in inappropriate ways that are damaging to individual careers, particularly for young scholars, and to the profession. Furthermore, as with all indices, people can play games to better their scores. This has resulted in the...

Spring and latch dynamics can act as control pathways in ultrafast systems

Nak-Seung Patrick Hyun, Jeffrey P. Olberding, Avik De, Sathvik Divi, Xudong Liang, Elayne Thomas, Ryan St. Pierre, Emma Steinhardt, Justin Jorge, Sarah J. Longo, Suzanne Cox, Elizabeth Mendoza, Gregory P. Sutton, Manny Azizi, Alfred J. Crosby, Sarah Bergbreiter, Robert J. Wood & S. N. Patek
Ultrafast movements propelled by springs and released by latches are thought limited to energetic adjustments prior to movement and seemingly cannot adjust once movement begins. Even so, across the tree of life, ultrafast organisms navigate dynamic environments and generate a range of movements, suggesting unrecognized capabilities for control. We develop a framework of control pathways leveraging the non-linear dynamics of spring-propelled, latch-released systems. We analytically model spring dynamics and develop reduced-parameter models of latch dynamics...

Data from: Quantifying the dark data in museum fossil collections as palaeontology undergoes a second digital revolution

Charles R. Marshall, Seth Finnegan, Erica C. Clites, Patricia A. Holroyd, Nicole Bonuso, Crystal Cortez, Edward Davis, Gregory P. Dietl, Patrick S. Druckenmiller, Ron C. Eng, Christine Garcia, Kathryn Estes-Smargiassi, Austin Hendy, Kathy A. Hollis, Holly Little, Elizabeth A. Nesbitt, Peter Roopnarine, Leslie Skibinski, Jann Vendetti & Lisa D. White
Large-scale analysis of the fossil record requires aggregation of palaeontological data from individual fossil localities. Prior to computers these synoptic datasets were compiled by hand, a laborious undertaking that took years of effort and forced palaeontologists to make difficult choices about what types of data to tabulate. The advent of desktop computers ushered in palaeontology’s first digital revolution – online literature-based databases, such as the Paleobiology Database (PBDB). However, the published literature represents only a...

Phylogenomic resolution of the root of Panpulmonata, a hyperdiverse radiation of gastropods: new insight into the evolution of air breathing

Patrick Krug, Serena Caplins, Krisha Algoso, Kanique Thomas, Angel Valdes, Rachael Wade, Nur Leena Wong, Douglas Eernisse & Kevin Kocot
Transitions to terrestriality have been associated with major animal radiations including land snails and slugs in Stylommatophora (>20,000 described species), the most successful lineage of ‘pulmonates’ (a non-monophyletic assemblage of air-breathing gastropods). However, phylogenomic studies have failed to robustly resolve relationships among traditional pulmonates and affiliated marine lineages that comprise clade Panpulmonata (Mollusca, Gastropoda), especially two key taxa: Sacoglossa, a group including photosynthetic sea slugs; and Siphonarioidea, intertidal limpet-like snails with a non-contractile pneumostome (narrow...

Hemotological and morphometric measurements from geladas

Kenneth L. Chiou, Mareike C. Janiak, India A. Schneider-Crease, Sharmi Sen, Ferehiwot Ayele, Idrissa S. Chuma, Sascha Knauf, Alemayehu Lemma, Anthony V. Signore, Anthony M. D’Ippolito, Belayneh Abebe, Abebaw Azanaw Haile, Fanuel Kebede, Peter J. Fashing, Nga Nguyen, Colleen McCann, Marlys L. Houck, Jeffrey D. Wall, Andrew S. Burrell, Christina M. Bergey, Jeffrey Rogers, Jane E. Phillips-Conroy, Clifford J. Jolly, Amanda D. Melin, Jay F. Storz … & Noah Snyder-Mackler
Primates have adapted to numerous environments and lifestyles but very few species are native to high elevations. Here, we investigated high-altitude adaptations in the gelada (Theropithecus gelada), a monkey endemic to the Ethiopian Plateau. We examined genome-wide variation in conjunction with measurements of haematological and morphological traits. Our new gelada reference genome is highly intact and assembled at chromosome-length levels. Unexpectedly, we identified a chromosomal polymorphism in geladas that could potentially contribute to reproductive barriers...

Pteridium nuclear gene phylogeny

Paul G. Wolf, Carol A. Rowe, Sylvia P. Kinosian, Joshua P. Der, Peter J. Lockhart, Lara D. Shepherd, Patricia A. McLenachan & John A. Thomson

Data from: Transcriptome analysis reveals nutrition‐ and age‐related patterns of gene expression in the fat body of pre‐overwintering bumble bee queens

Claudinéia P. Costa, Michelle A. Duennes, Kaleigh Fisher, Joshua P. Der, Kristal M. Watrous, Naoki Okamoto, Naoki Yamanaka & S. Hollis Woodard
Many diapausing insects undergo a nutrient storage period prior to their entry into diapause. Bumble bee queens diapause as adults in the winter preceding their spring nest initiation period. Before diapause, they sequester glycogen and lipids, which they metabolize during the overwintering period. We used RNA sequencing to examine how age and nectar diet (specifically, the concentration of sucrose in nectar) impact gene expression in the pre-overwintering bumble bee queen fat body, the “liver-like” organ...

Do early life experiences predict variation in the general factor of personality (GFP)?

Joseph Manson, Kristine Joy Chua & Aaron Lukaszewski
Evolutionary approaches to examine human personality variation have used the Big Five as given, tested higher order latent structures like the Big Two or the General Factor of Personality (GFP), or applied domain-specific psychological adaptations. Yet, debates regarding the adaptive significance of personality variation are ongoing. We focus on latent factor models and test adaptationist hypotheses linking facultative responses of the GFP, its subparts (i.e., metatrait alpha), and extraversion to early life experiences in 366...

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