25 Works

Evolution of specialization in a plant-microbial mutualism is explained by the oscillation theory of speciation

Lorena Torres Martínez, Stehanie Porter, Camille Wendlandt, Jessica Purcell, Gabriel S Ortiz-Barbosa, Jacob Rothschild, Mathew Lampe, Farmasin Warisha, Tram Le, Alexandra J Weisberg, Jeff Chang & Joel L Sachs
This is a compilation of the different sets of data that were gathered and analyzed to understand the evolution of plant-microbial mutualisms in a genus of native legumes in California (Acmispon) described in the paper: "Torres-Martínez L, Porter SS, Wendlandt CE, Purcell J, Ortiz-Barbosa GS, Rothschild J, Lampe M, Warisha F, Le T, Weisberg AJ, Chang JH, Sachs JL. Evolution of specialization in a plant-microbial mutualism is explained by the oscillation theory of speciation. Evolution....

Selfing rate variation within species is unrelated to life-history traits or geographic range position

Jeremiah Busch & Carly Prior
Premise: In plants, populations and species vary widely along the continuum from outcrossing to selfing. Life-history traits and ecological circumstances influence among-species variation in selfing rates but their general role in explaining intraspecific variation is unknown. Using a database of plant species, we test whether life-history traits, geographic range position, or abundance predict selfing rate variation among populations. Methods: We identified species where selfing rates were estimated in at least three populations at known locations....

Data and analysis scripts for: Co-occurrence patterns at four spatial scales implicate reproductive processes in shaping community assembly in clovers

Kyle Christie, Susan Harrison, Maren L. Friesen & Sharon Y. Strauss
1. Competition, niche differences, and chance all contribute to community assembly, yet the role of reproductive interactions between species is often less appreciated. Closely related plant species that share floral form, phenology, and habitat often interact through pollination. They potentially facilitate pollinator attraction, compete for pollination services, and/or exchange pollen. If reproductive processes are important to co-occurrence, we predicted that fitness costs of heterospecific pollen transfer or pollen limitation should result in lower rates of...

Complex landscapes stabilize farm bird communities and their expected ecosystem services

Olivia Smith, Christina M. Kennedy, Alejandra Echeverri, Daniel Karp, Christopher Latimer, Joseph Taylor, Erin Wilson-Rankin, Jeb Owen & William Snyder
1. Birds play many roles within agroecosystems including as consumers of crops and pests, carriers of pathogens, and beloved icons. Birds are also rapidly declining across North America, in part due to agricultural intensification. Thus, it is imperative to identify how to manage agroecosystems to best support birds for multi-functional outcomes (e.g., crop production and conservation). Both the average amounts of services/disservices provided and their temporal stability are important for effective farm planning. 2. Here,...

Discrete-space continuous-time models of marine mammal exposure to Navy sonar

Charlotte Jones-Todd, Enrico Pirotta, John Durban, Diane Claridge, Robin Baird, Erin Falcone, Greg Schorr, Stephanie Watwood & Len Thomas
Assessing the patterns of wildlife attendance to specific areas is relevant across many fundamental and applied ecological studies, particularly when animals are at risk of being exposed to stressors within or outside the boundaries of those areas. Marine mammals are increasingly being exposed to human activities that may cause behavioural and physiological changes, including military exercises using active sonars. Assessment of the population-level consequences of anthropogenic disturbance requires robust and efficient tools to quantify the...

Floral traits differentiate pollination syndromes and taxa but fail to predict the identity of floral visitors to Castilleja

Evan Hilpman & Jeremiah Busch
Premise of the Study: Animal pollination is critical to plant reproduction and may cause convergent evolution of pollination syndromes. Pollination syndromes in Castilleja are hypothesized based on floral traits and historical observations of floral visitors. Here we address these questions: (i) Can pollination syndromes be distinguished using floral morphological traits or volatile organic compound emissions? (ii) Is there significant variation in floral traits within a pollination syndrome, at the level of populations or species? and...

Correcting parentage relationships in the endangered California condor: Improving mean kinship estimates for conservation management

Brigid M. Moran, Steven M. Thomas, Jessica M. Judson, Asako Navarro, Heidi Davis, Lindsay Sidak-Loftis, Marisa Korody, Michael Mace, Katherine Ralls, Taylor Callicrate, Oliver A. Ryder, Leona G. Chemnick & Cynthia C. Steiner
Maintaining the existing biodiversity of endangered species is a goal of conservation management programs, and a major component of many collaborative efforts undertaken by zoos, field biologists, and conservation scientists. Over the past three decades, the San Diego Zoo has performed long-term genetic studies in support of the recovery program for the critically endangered California condor (Gymnogyps californianus). This work has included sex determination of hatchlings and parentage confirmation using microsatellite genotyping. This paper describes...

Testing the potential contribution of Wolbachia to speciation when cytoplasmic incompatibility becomes associated with host‐related reproductive isolation

Daniel Bruzzese, Hannes Schuler, Thomas Wolfe, Mary Glover, Joseph Mastroni, Meredith Doellman, Cheyenne Tait, Wee Yee, Juan Rull, Martin Aluja, Glen Hood, Robert Goughnour, Christian Stauffer, Patrik Nosil, Jeffery Feder, Daniel J. Bruzzese, Thomas M. Wolfe, Mary M. Glover, Meredith M. Doellman, Wee L. Yee, Glen R. Hood & Jeffery L. Feder
Endosymbiont induced cytoplasmic incompatibility (CI) may play an important role in arthropod speciation. However, whether CI consistently becomes associated or coupled with other host-related forms of reproductive isolation (RI) to impede the transfer of endosymbionts between hybridizing populations and further the divergence process remains an open question. Here, we show varying degrees of pre- and post-mating RI exist among allopatric populations of two interbreeding cherry-infesting tephritid fruit flies (Rhagoletis cingulata and R. indifferens) across North...

Larval A. bishopi microsatellite data from: Metapopulation genetics of endangered reticulated flatwoods salamanders (Ambystoma bishopi) in a dynamic and fragmented landscape

Alexander Wendt, Carola Haas, Thomas Gorman & James Roberts
The dataset consists of 9 microsatellite markers used to analyze reticulated flatwoods salamanders' (Ambystoma bishopi) population structure on Eglin AFB. Samples came from various breeding ponds and allele sizes were scored using GeneMapper (GeneMapper v4.0; Applied Biosystems). Data was collected via allele scoring in GeneMapper by two independent researchers. Allele sizes for each individual have been re-formatted for various programs using the microsatellite Add-in in Excel as well as by using the GenAlEx extension in...

Data from: Quantifying and correcting for pre-assay CO2 loss in short-term carbon mineralization assays

Matthew Belanger, Carmella Vizza, G. Philip Robertson & Sarah Roley
Abstract. The active fraction of soil organic carbon is an important component of soil health and often is quickly assessed as the pulse of CO2 released by re-wetting dried soils in short-term (24–72 h) assays. However, soils can lose carbon (C) as they dry and, if soil samples vary in moisture content at sampling, differential C loss during the pre-assay dry-down period may complicate the assay's interpretations. We examined the impact of pre-assay CO2 loss...

Unifying community detection across scales from genomes to landscapes

Andrii Zaiats, Stephanie F. Hudon, Anna Roser, Anand Roopsind, Cristina Barber, Brecken C. Robb, Britt A. Pendleton, Meghan J. Camp, Patrick E. Clark, Merry M. Davidson, Jonas Frankel-Bricker, Marcella Fremgen-Tarantino, Jennifer Sorensen Forbey, Eric J. Hayden, Lora A. Richards, Olivia K. Rodrigues & T. Trevor Caughlin
Biodiversity science encompasses multiple disciplines and biological scales from molecules to landscapes. Nevertheless, biodiversity data are often analyzed separately with discipline-specific methodologies, constraining resulting inferences to a single scale. To overcome this, we present a topic modeling framework to analyze community composition in cross-disciplinary datasets, including those generated from metagenomics, metabolomics, field ecology, and remote sensing. Using topic models, we demonstrate how community detection in different datasets can inform the conservation of interacting plants and...

Multiple mutualism effects generate synergistic selection and strengthen fitness alignment in the interaction between legumes, rhizobia, and mycorrhizal fungi

Michelle Afkhami, Maren Friesen & John Stinchcombe
Nearly all organisms participate in multiple mutualisms, and complementarity within these complex interactions can result in synergistic fitness effects. However, it remains largely untested how multiple mutualisms impact eco-evolutionary dynamics in interacting species. We tested how multiple microbial mutualists-- N-fixing bacteria and mycorrrhizal fungi-- affected selection and heritability of traits in their shared host plant (Medicago truncatula), as well as fitness alignment between partners. Our results demonstrate for the first time that multiple mutualisms synergistically...

Trans-ovo permethrin exposure in quail (Cortunix japonica)

Erica Crespi
Permethrin is a commonly used, highly effective pesticide in poultry agriculture, and has recently been trialed in conservation efforts to protect Galá​pagos finch hatchlings from an invasive ectoparasite. Although permethrin is considered safe for adults, pesticides can have health consequences when animals are exposed during early life stages. The few studies that have examined permethrin’s effects in embryonic chicks and rats have shown hydrocephaly, anencephaly, reduced cellular energy conversion, and disruption of developing heart muscle....

Data from: Effects of Bark Beetle Outbreaks on Forest Landscape Pattern in the Southern Rocky Mountains, U.S.A.

Kyle Rodman, Robert Andrus, Cori Butkiewicz, Teresa Chapman, Nathan Gill, Brian Harvey, Dominik Kulakowski, Niko Tutland, Thomas Veblen & Sarah Hart
Since the late 1990s, extensive outbreaks of native bark beetles (Curculionidae: Scolytinae) have affected coniferous forests throughout Europe and North America, driving changes in carbon storage, wildlife habitat, nutrient cycling, and water resource provisioning. Remote sensing is a crucial tool for quantifying the effects of these disturbances across broad landscapes. In particular, Landsat time series (LTS) are increasingly used to characterize outbreak dynamics, including the presence and severity of bark beetle-caused tree mortality, though broad-scale...

A trait-based framework for predicting foodborne pathogen risk from wild birds

Olivia Smith, Elissa Olimpi, Nora Navarro-González, Kevin Cornell, Luke Frishkoff, Tobin Northfield, Timothy Bowles, Max Edworthy, Johnna Eilers, Zhen Fu, Karina Garcia, David Gonthier, Matthew Jones, Christina Kennedy, Christopher Latimer, Jeb Owen, Chika Sato, Joseph Taylor, Erin Wilson Rankin, William Snyder & Daniel Karp
Recent foodborne illness outbreaks have heightened pressures on growers to deter wildlife from farms, jeopardizing conservation efforts. However, it remains unclear which species, particularly birds, pose the greatest risk to food safety. Using >11,000 pathogen tests and 1,565 bird surveys covering 139 bird species from across the western U.S.A., we examined the importance of 11 traits in mediating wild bird risk to food safety. We tested whether traits associated with pathogen exposure (e.g., habitat associations,...

Landscape genomics of the streamside salamander: Implications for species management in the face of environmental change

Marc Beer, Rachael Kane, Steven Micheletti, Christopher Kozakiewicz & Andrew Storfer
Understanding spatial patterns of genetic differentiation and local adaptation is critical in a period of rapid environmental change. Climate change and anthropogenic development have led to population declines and shifting geographic distributions in numerous species. The streamside salamander, Ambystoma barbouri, is an endemic amphibian with a small geographic range that predominantly inhabits small, ephemeral streams. As A. barbouri is listed as near-threatened by the IUCN, we describe range-wide patterns of genetic differentiation and adaptation to...

Data from: Comparison between the kinematics for kangaroo rat hopping on a solid versus sand surface

David Lin, Craig McGowan & Joseph Hall
In their natural habitats, animals move on a variety of substrates, ranging from solid surfaces to those that yield and flow (e.g., sand). These substrates impose different mechanical demands on the musculoskeletal system and may therefore elicit different locomotion patterns. The goal of this study is to compare bipedal hopping by desert kangaroo rats (Dipodomys deserti) on a solid versus granular substrate under speed-controlled conditions. To accomplish this goal, we developed a rotary treadmill, which...

Do diverse cover crop mixtures perform better than monocultures? A systematic review

Andrew McGuire & Angela Florence
We conducted a systematic review that synthesizes a growing body of cover crop mixture research. The extracted data was analyzed to assess, for seven metric categories, whether cover crop mixtures can perform better than their constituent species when planted alone. Searching three databases, we identified 27 studies which compared cover crop mixtures (containing at least three species) to all their constituent species. The studies contained 119 sampled cover crop plantings that met our eligibility criteria....

Myosin cross-bridge kinetics slow at longer muscle lengths during isometric contractions in intact soleus from mice

Axel Fenwick, David Lin & Bertrand Tanner
Muscle contraction results from force-generating cross-bridge interactions between myosin and actin. Cross-bridge cycling kinetics underlie fundamental contractile properties, such as active force production and energy utilization. Factors that influence cross-bridge kinetics at the molecular level propagate through the sarcomeres, cells, and tissue to modulate whole-muscle function. Conversely, movement and changes in muscle length can influence cross-bridge kinetics on the molecular level. Reduced, single-molecule and single-fiber experiments have shown that increasing the strain on cross-bridges may...

Datasets for: Resilience or Catastrophe? A possible state change for monarch butterflies in western North America

Elizabeth Crone & Cheryl Schultz
In the western United States, the population of migratory monarch butterflies is on the brink of collapse, having dropped from several million butterflies in the 1980’s to ~2000 butterflies in the winter of 2020-21. At the same time, a resident (non-migratory) monarch butterfly population in urban gardens has been growing in abundance. The new resident population is not sufficient to make up for the loss of the migratory population; there are still orders of magnitude...

Data from: A geographic cline in the ability to self-fertilize is unrelated to the pollination environment

Laura Galloway, Matt Koski, Jeremiah Busch & Dena Grossenbacher
The reproductive assurance (RA) hypothesis predicts that the ability to autonomously self-fertilize should be favored in environments where a lack of mates or pollinators limits outcross reproduction. Because such limits to outcrossing are predicted to be most severe at range edges, elevated autonomy in peripheral populations is often attributed to RA. We test this hypothesis in 24 populations spanning the range of Campanula americana, including sampling at the range interior and three geographic range edges....

Physiological data and R script for running physiology combined model for Drosophila suzukii

Gengping Zhu, Javier Gutierrez Illan & David W. Crowder
This is the dataset that accompanies an article entitled "The use of insect life tables in optimizing invasive pest distributional models" that would be published in Ecography. The dataset include two R script that used to generate physical model and the physiology combined model respectively. Our paper shows that the physiology combined model show good performance when applying ecological niche model in risk assessment. We addressed this by determining whether incorporating physiological data from life...

Data from: Temporal dynamics of free‐living nitrogen fixation in the switchgrass rhizosphere

Darian Smercina, Sarah E. Evans, Maren L. Friesen & Lisa K. Tiemann
Here we present data associated with the manuscript, Temporal dyanmics of free-living nitrogen fixation in the switchgrass rhizosphere. Free-living nitrogen fixation (FLNF) represents an important terrestrial N source and is gaining interest for its potential to contribute plant available N to bioenergy cropping systems. Switchgrass, a cellulosic bioenergy crop, may be reliant on FLNF when particularly when grown on low N marginal lands. These potential contributions of FLNF to switchgrass and the controls on this...

Registration Year

  • 2021

Resource Types

  • Dataset


  • Washington State University
  • The Nature Conservancy
  • University of California, Riverside
  • Michigan State University
  • University of California, Davis
  • University of Georgia
  • Colorado State University
  • California Polytechnic State University
  • National Research Institute for Agriculture, Food and Environment
  • Centre national de la recherche scientifique