10 Works

Data from: Elevated pCO2 affects tissue biomass composition, but not calcification, in a reef coral under two light regimes

Christopher B. Wall, Robert A. B. Mason, William R. Ellis, Ross Cunning & Ruth D. Gates
Ocean acidification (OA) is predicted to reduce reef coral calcification rates and threaten the long-term growth of coral reefs under climate change. Reduced coral growth at elevated pCO2 may be buffered by sufficiently high irradiances; however, the interactive effects of OA and irradiance on other fundamental aspects of coral physiology, such as the composition and energetics of coral biomass, remain largely unexplored. This study tested the effects of two light treatments (7.5 versus 15.7 mol...

Data from: Local and regional stressors interact to drive a salinization-induced outbreak of predators on oyster reefs

David L. Kimbro, J. Wilson White, Hanna Tillotson, Nikkie Cox, Megan Christopher, Owen Stokes-Cawley, Samantha Yuan, Tim J. Pusack, Christopher D. Stallings & Timothy J. Pusack
Predator outbreaks are predicted to increasingly decimate economically and ecologically important prey populations because global climate change and food-web modifications frequently facilitate predators and stress prey. Natural systems are organized hierarchically, with processes operating at multiple scales giving rise to patterns of biodiversity, so predicting and managing outbreaks requires a framework that accounts for the effects of both local and regional stressors. Here, we used the comparative experimental approach to investigate whether the collapse of...

Data from: Moving beyond linear food chains: trait-mediated indirect interactions in a rocky intertidal food web

Geoffrey C. Trussell, Catherine M. Matassa & Patrick J. Ewanchuk
In simple, linear food chains, top predators can have positive indirect effects on basal resources by causing changes in the traits (e.g. behaviour, feeding rates) of intermediate consumers. Although less is known about trait-mediated indirect interactions (TMIIs) in more complex food webs, it has been suggested that such complexity dampens trophic cascades. We examined TMIIs between a predatory crab (Carcinus maenas) and two ecologically important basal resources, fucoid algae (Ascophyllum nodosum) and barnacles (Semibalanus balanoides),...

Data from: Oyster reefs as carbon sources and sinks

F. Joel Fodrie, Antonio B. Rodriguez, Rachel K. Gittman, Jonathan H. Grabowski, Niels L. Lindquist, Charles H. Peterson, Michael F. Piehler, Justin T. Ridge & Niels. L. Lindquist
Carbon burial is increasingly valued as a service provided by threatened vegetated coastal habitats. Similarly, shellfish reefs contain significant pools of carbon and are globally endangered, yet considerable uncertainty remains regarding shellfish reefs' role as sources (+) or sinks (−) of atmospheric CO2. While CO2 release is a by-product of carbonate shell production (then burial), shellfish also facilitate atmospheric-CO2 drawdown via filtration and rapid biodeposition of carbon-fixing primary producers. We provide a framework to account...

Data from: Untangling the roles of microclimate, behaviour and physiological polymorphism in governing vulnerability of intertidal snails to heat stress

Yun-Wei Dong, Xiao-Xu Li, Francis M.P. Choi, Gray A. Williams, George N. Somero, Brian Helmuth & Francis M. P. Choi
Biogeographic distributions are driven by cumulative effects of smaller scale processes. Thus, vulnerability of animals to thermal stress is the result of physiological sensitivities to body temperature (Tb), microclimatic conditions, and behavioural thermoregulation. To understand interactions among these variables, we analysed the thermal tolerances of three species of intertidal snails from different latitudes along the Chinese coast, and estimated potential Tb in different microhabitats at each site. We then empirically determined the temperatures at which...

Data from: Delegating decisions: recruiting others to make choices we might regret

Mary Steffel & Elanor F. Williams
Consumers typically prefer freedom of choice, but when faced with a choice they might regret, they may prefer freedom from choice. Eight experiments show that people delegate difficult decisions, regardless of the decision’s importance, and regardless of their potential surrogate’s expertise. Delegation stems from a desire to avoid responsibility for potentially making the wrong choice rather than simply the desire to avoid the possibility of a poor outcome: although anticipated disappointment with the outcome and...

Data from: Composite measures of selection can improve the signal-to-noise ratio in genome scans

Katie E. Lotterhos, Daren C. Card, Sara M. Schaal, Liuyang Wang, Caitlin Collins & Bob Verity
The growing wealth of genomic data is yielding new insights into the genetic basis of adaptation, but it also presents the challenge of extracting the relevant signal from multi-dimensional datasets. Different statistical approaches vary in their power to detect selection depending on the demographic history, type of selection, genetic architecture and experimental design. Here, we develop and evaluate new approaches for combining results from multiple tests, including multivariate distance measures and methods for combining P-values....

Data from: Computer assisted detection of axonal bouton structural plasticity in in vivo time-lapse images

Rohan Gala, Daniel Lebrecht, Daniela A. Sahlender, Anne Jorstad, Graham Knott, Anthony Holtmaat & Armen Stepanyants
The ability to measure minute structural changes in neural circuits is essential for long-term in vivo imaging studies. Here, we propose a methodology for detection and measurement of structural changes in axonal boutons imaged with time-lapse two-photon laser scanning microscopy (2PLSM). Correlative 2PLSM and 3D electron microscopy (EM) analysis, performed in mouse barrel cortex, showed that the proposed method has low fractions of false positive/negative bouton detections (2/0 out of 18), and that 2PLSM-based bouton...

Data from: Regeneration of glycocalyx by heparan sulfate and sphingosine 1-phosphate restores inter-endothelial communication

Solomon A. Mensah, Ming J. Cheng, Homa Homayoni, Brian D. Plouffe, Arthur J. Coury & Eno E. Ebong
Vasculoprotective endothelium glycocalyx (GCX) shedding plays a critical role in vascular disease. Previous work demonstrated that GCX degradation disrupts endothelial cell (EC) gap junction connexin (Cx) proteins, likely blocking interendothelial molecular transport that maintains EC and vascular tissue homeostasis to resist disease. Here, we focused on GCX regeneration and tested the hypothesis that vasculoprotective EC function can be stimulated via replacement of GCX when it is shed. We used EC with [i] intact heparan sulfate...

Data from: Life history traits and functional processes generate multiple pathways to ecological stability

John P. DeLong, Torrance C. Hanley, Jean P. Gibert, Linda M. Puth & David M. Post
Stability contributes to the persistence of ecological communities, yet the interactions among different stabilizing forces are poorly understood. We assembled mesocosms with an algal resource and 1-8 different clones of the consumer Daphnia ambigua and tracked algal and Daphnia abundances through time. We then fitted coupled ordinary differential equations (ODEs) to the consumer-resource time series. We show that variation in different components of stability (local stability and the magnitude of population fluctuations) across mesocosms arises...

Registration Year

  • 2017
    10

Resource Types

  • Dataset
    10

Affiliations

  • Northeastern University
    10
  • Stanford University
    1
  • Xiamen University
    1
  • Duke University
    1
  • Providence College
    1
  • Oregon State University
    1
  • University of North Carolina
    1
  • The University of Texas at Arlington
    1
  • University of Geneva
    1
  • University of Hawaii at Manoa
    1