80 Works

Age predicts risky investment better than residual reproductive value

David Delaney, Luke Hoekstra & Fredric Janzen
Life-history theory predicts that investment into reproduction should increase as future reproductive opportunities (i.e., residual reproductive value, RRV) decrease. Researchers have thus intuitively used age as a proxy for RRV and assume RRV decreases with age when interpreting age-specific investment. Yet, age is an imperfect proxy for RRV and may even be a poor correlate in some systems. We used a 30-year study of the nesting ecology of painted turtles ( Chrysemys picta ) to...

Citizen science improves our understanding of the impact of soil management on wild pollinator abundance in agroecosystems

Logan Appenfeller, Sarah Lloyd & Zsofia Szendrei
Native bees provide essential pollination services in both natural and managed ecosystems. However, declines in native bee species highlight the need for increased understanding of land management methods that can promote healthy, persistent populations and diverse communities. This can be challenging and costly using traditional scientific methods, but citizen science can overcome many limitations. In this study, we examined the distribution and abundance of an agriculturally important wild bee species, the squash bee (Eucera (Peponapis)...

Interleukin-6 (IL-6) activates the NOTCH1 signaling pathway through E-proteins in endometriotic lesions

Yong Song, RenWei Su, Niraj R. Joshi, Tae Hoon Kim, Bruce A Lessey, Jae-Wook Jeong & Asgerally T Fazleabas
Context: NOTCH signaling is activated in endometriotic lesions but the exact mechanisms remains unclear. Interleukin-6 (IL-6), which is increased in the peritoneal fluid of women with endometriosis, induces NOTCH1 through E-proteins including E2A and HEB in cancer development. Objective: To study the role of E-proteins in inducing NOTCH1 expression under the regulation of IL-6 in endometriosis. Setting and Design: The expression of E2A, HEB and NOTCH1 was first investigated in endometrium of women with endometriosis...

Local diversity, beta diversity and climate influence the regional stability of bird biomass across North America

Christopher Catano, Trevor Fristoe, Joseph LaManna & Jonathan Myers
Biodiversity often stabilizes aggregate ecosystem properties (e.g., biomass) at small spatial scales. However, the importance of species diversity within communities and variation in species composition among communities (β-diversity) for stability at larger scales remains unclear. Using a continental-scale analysis of 1,657 North American breeding-bird communities spanning 20-years and 35 ecoregions, we show local species diversity and β-diversity influence two components of regional stability: local stability (stability of bird biomass within sites) and spatial asynchrony (asynchronous...

Special Issue on Slave Biographies

Are We Keeping Our Cash in Our Hotels?


A Multivariate Analysis of the Relationship Between Undergraduate Fraternity/Sorority Involvement and Academic Performance

Larry D. Long

Data from: Trait-environment interactions affect plant establishment success during restoration

Chad Zirbel & Lars Brudvig
Establishment and persistence are central to community assembly and are determined by how traits interact with the environment to determine performance ('trait-environment interactions'). Community assembly studies have rarely considered such trait-environment interactions, however, which can lead to incorrect inferences about how traits affect assembly. We evaluated how functional traits, environmental conditions, and trait-environment interactions structure plant establishment, as a measure of performance. Within 12 prairie restorations created by sowing 70 species, we quantified environmental conditions...

DogPopDy: ABM for ABC planning

Aniruddha Belsare
An agent-based model designed as a tool to assess and plan free-ranging dog population management programs that implement Animal Birth Control (ABC). The time, effort, financial resources and conditions needed to successfully control dog populations and achieve rabies control can be determined by performing virtual experiments using DogPopDy.

Afrobarometer Survey South Africa 2008

Data from: Evidence for spatial clines and mixed geographic modes of speciation for North American cherry-infesting Rhagoletis (Diptera:Tephritidae) flies

Meredith Doellman, Gilbert Saint Jean, Scott Egan, Thomas Powell, Glen Hood, Hannes Schuler, Daniel Bruzzese, Mary Glover, James Smith, Wee Yee, Robert Goughnour, Juan Rull, Martin Aluja & Jeffrey Feder
An important criterion for understanding speciation is the geographic context of population divergence. Three major modes of allopatric, parapatric, and sympatric speciation define the extent of spatial overlap and gene flow between diverging populations. However, mixed modes of speciation are also possible, whereby populations experience periods of allopatry, parapatry, and/or sympatry at different times as they diverge. Here, we report clinal patterns of variation for 21 nuclear-encoded microsatellites and a wing spot phenotype for cherry-infesting...

Data from: Agricultural land-use history and restoration impact soil microbial biodiversity

Nash Turley, Lars Brudvig, Lukas Bell-Dereske & Sarah Evans
Human land uses, such as agriculture, can leave long-lasting legacies as ecosystems recover. As a consequence, active restoration may be necessary to overcome land-use legacies; however, few studies have evaluated the joint effects of agricultural history and restoration on ecological communities. Those that have studied this joint effect have largely focused on plants and ignored other communities, such as soil microbes. We conducted a large-scale experiment to understand how agricultural history and restoration tree thinning...

Novel plant-microbe interactions: rapid evolution of a legume-rhizobium mutualism in restored prairies

Susan Magnoli & Jennifer Lau
1. When plants colonize new habitats, the novel interactions they form with new mutualists or enemies can immediately affect plant performance. These novel interactions also may provoke rapid evolutionary responses and can be ideal scenarios for investigating how species interactions influence plant evolution. 2. To explore how mutualists influence the evolution of colonizing plant populations, we capitalized on an experiment in which two former agricultural fields were seeded with identical prairie seed mixes in 2010....

Haplotype-resolved genome analyses of a heterozygous diploid potato

Qian Zhou, Chunzhi Zhang, Wu Huang, Zhongmin Yang, Yu Zhang, Die Tang, John P. Hamilton, Richard G. F. Visser, Christian W. B. Bachem, C. Robin Buell, Zhonghua Zhang & Sanwen Huang
Potato (Solanum tuberosum L.) is the most important tuber crop worldwide. An effort is underway to transform the crop from a clonally propagated tetraploid into a diploid seed-propagated, inbred line-based hybrid, which requires a better understanding of its highly heterozygous genome of potato. Here, we report the 1.67 Gb haplotype-resolved assembly of a diploid potato, RH89-039-16, using the combination of multiple sequencing and mapping strategies, including circular consensus sequencing. Comparison of the two haplotypes revealed...

Data from: Vitis vinifera leaf images

Daniel Chitwood
This dataset captures the leaf shape of over 9,500 leaves from wine and table grape varieties (Vitis vinifera) in over 4,900 photographs sampled from the Wolfskill USDA National Clonal Germplasm Repository in Winters, California. This dataset is useful for morphometric, allometric, ampelographic, and genetic studies into the shape and size of grapevine leaves.

Evolution in novel environments: do restored prairie populations experience strong selection?

Susan Magnoli & Jennifer Lau
When populations colonize new habitats, they are likely to experience novel environmental conditions, and as a consequence may experience strong selection. While selection and the resulting evolutionary responses may have important implications for establishment success in colonizing populations, few studies have estimated selection in such scenarios. Here we examined evidence of selection in recently established plant populations in two prairie restorations in close proximity (< 15 km apart) using two approaches: 1) we tested for...

IS-mediated mutations both promote and constrain evolvability during a long-term experiment with bacteria

Jessika Consuegra, Joël Gaffé, Richard E. Lenski, Thomas Hindre, Jeffrey E. Barrick, Olivier Tenaillon & Dominique Schneider
The long-term dynamics of IS elements and their effects on bacteria are poorly understood, including whether they are primarily genomic parasites or important drivers of adaptation by natural selection. Here, we investigate the dynamics of IS elements and their contribution to genomic evolution and fitness during a long-term experiment with Escherichia coli. This data set includes the Rmd file to analyze the genomic and metagenomic data (Tenaillon et al. 2016 and Good et al. 2017)...

Three-dimensional surface models of hand bones (individual 15-06)

Fotios Alexandros Karakostis, Hugo Reyes-Centeno, Michael Francken, Gerhard Hotz, Kurt Rademaker & Katerina Harvati
Objectives: Cuncaicha, a rockshelter site in the southern Peruvian Andes, has yielded archaeological evidence for human occupation at high elevation (4480 masl) during the Terminal Pleistocene (12,500 to 11,200 cal BP), Early Holocene (9500-9000 cal BP), and later periods. One of the excavated human burials (Feature 15-06), corresponding to a middle-aged female dated to ~8500 cal BP, exhibits skeletal osteoarthritic lesions previously proposed to reflect habitual loading and specialized crafting labor. Three small tools found...

Data from: How geographic productivity patterns affect food-web evolution

Jonas Wickman
This dataset contains the generated data analyzed in the manuscript, as well as the code for analyzing the generated data. It also contains the code used to generate the data.

Generation of a chromosome-scale genome assembly of the insect-repellant terpenoid-producing Lamiaceae species, Callicarpa americana

John P. Hamilton, Grant Godden, Emily Lanier, Wajid Waheed Bhat, Taliesin Kinser, Brieanne Vaillancourt, Haiyan Wang, Joshua Wood, Jiming Jiang, Pamela Soltis, Douglas Soltis, Bjoern Hamberger & C. Robin Buell
Background: Plants exhibit wide chemical diversity due to production of specialized metabolites which function as pollinator attractants, defensive compounds, and signaling molecules. Lamiaceae (mints) are known for their chemodiversity and have been cultivated for use as culinary herbs and as sources of insect repellents, health-promoting compounds, and fragrance. Findings: We report the chromosome-scale genome assembly of Callicarpa americana L. (American beautyberry), a species within the early diverging Callicarpoideae clade of the Lamiaceae, known for its...

Forest cover and proximity decrease herbivory and increase crop yield via enhanced natural enemies in soybean fields

Ezequiel Gonzalez, Doug Landis, Michal Knapp & Graciela Valladares
Non-crop habitats are essential for sustaining biodiversity of beneficial arthropods in agricultural landscapes, which can increase ecosystem services provision and crop yield. However, their effects on specific crop systems are less clear, such as soybean in South America, where the responses of pests and natural enemies to landscape structure have only recently been studied. Here, we analyzed how native forest fragments at local and landscape scales influenced arthropod communities, herbivory, and yield in soybean fields...

Registration Year

  • 2020

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  • Michigan State University
  • Ghana Center for Democratic Development
  • University of Florida
  • Binghamton University
  • Wayne State University
  • University of California, Davis
  • University of California, Berkeley
  • United States Department of Agriculture
  • Agricultural Research Service
  • Cornell University