52 Works

Natural variation further increases resilience of sorghum bred for chronically drought-prone environments

Hongxu Dong, Techale Birhan, Nezif Abajebel, Misganu Wakjira, Tesfaye Mitiku, Cornelia Lemke, Vincent Vadez, Andrew H Paterson & Kassahun Bantte
Moisture stress is one of the major constraints for crop production in African Sahel. Here, we explore the potential to use natural genetic variation to build on the inherent drought tolerance of an elite sorghum cultivar (Teshale) bred for Ethiopian conditions including chronic drought, evaluating a backcross nested-association mapping population using 12 diverse founder lines crossed with Teshale under three drought-prone environments in Ethiopia. All twelve populations averaged higher head exsertion and lower leaf senescence...

Data from: Population genetics and independently replicated evolution of predator-associated burst speed ecophenotypy in mosquitofish

Thomas J DeWitt, Nicholas J Troendle, Mariana Mateos & Rodney Mauricio
Many species show replicated ecophenotypy due to recurring patterns of natural selection. Based on the presence or absence of pursuit predators, at least 17 species of fish repeatedly differentiated in body shape in a manner that increases burst swimming speed and the likelihood of predator escape. The predator-associated burst speed (PABS) ecophenotype is characterized by a small head and trunk and enlarged caudal region. Mechanisms promoting replicated phenotype-environment association include selection (without evolution), a single...

Influence of the evolution of cultural landscapes as heritage on 20th century international heritage preservation doctrine

Cari Goetcheus & Nora J. Mitchell
The Athens and Venice charters are generally considered the philosophical foundation of modern heritage preservation. Throughout the 20th century, preservation practitioners have continually debated these early doctrines, especially as they’ve been applied to increasingly diverse places in ever-changing social contexts. As important shifts in heritage preservation theory have evolved, a broad range of values have extended the definition of cultural heritage from monument-specific sites to larger landscapes, from local to regional and national scales, from...

Seminatural habitat surrounding farms promotes multifunctionality in avian ecosystem services

Elissa Olimpi, Karina Garcia, David Gonthier, Claire Kremen, William Snyder, Erin Wilson-Rankin & Daniel Karp
Farmland birds can suppress insect pests, but may also consume beneficial insects, damage crops, and potentially carry foodborne pathogens. As bird communities shift in response to farming practices, so too do the benefits (services) and costs (disservices) from birds. Understanding how and why ecosystem services and disservices covary can inform management interventions that enhance synergies, avoid tradeoffs, and promote multifunctionality. We investigated how farmland diversification practices influence the services and disservices provided by wild birds...

Influence of weather on gobbling activity of male wild turkeys

Patrick Wightman
Gobbling activity of Eastern wild turkeys (Meleagris gallopavo silvestris; hereafter, turkeys) has been widely studied, focusing on drivers of daily variation. Weather variables are widely believed to influence gobbling activity, but results across studies are contradictory and often equivocal, leading to uncertainty in the relative contribution of weather variables to daily fluctuations in gobbling activity. Previous works relied on road-based auditory surveys to collect gobbling data which limits data consistency, duration, and quantity due to...

Data From: Genomic regions associate with major axes of variation driven by gas exchange and leaf construction traits in cultivated sunflower (Helianthus annuus L.)

Ashley Earley, Andries A. Temme, Christopher R. Cotter & John M. Burke
Stomata and leaf veins play an essential role in transpiration and the movement of water throughout leaves. These traits are thus thought to play a key role in the adaptation of plants to drought and a better understanding of the genetic basis of their variation and coordination could inform efforts to improve drought tolerance. Here, we explore patterns of variation and covariation in leaf anatomical traits and analyze their genetic architecture via genome-wide association (GWA)...

Genome-wide DNA methylation patterns harbor signatures of hatchling sex and past incubation temperature in a species with environmental sex determination

Samantha Bock, Christopher Smaga, Jessica McCoy & Benjamin Parrott
Conservation of thermally sensitive species depends on monitoring organismal and population-level responses to environmental change in real time. Epigenetic processes are increasingly recognized as key integrators of environmental conditions into developmentally plastic responses, and attendant epigenomic datasets hold potential for revealing cryptic phenotypes relevant to conservation efforts. Here, we demonstrate the utility of genome-wide DNA methylation (DNAm) patterns in the face of climate change for a group of especially vulnerable species, those with temperature-dependent sex...

Data from: Sex-biased habitat selection by American marten in the Acadian forest

Erin Simons-Legaard, Daniel Harrison, Jeffrey Hepinstall-Cymerman & David Payer
Differences in spatial ecology between the sexes are generally expected for mammalian carnivores because of physiological (e.g., sexual dimorphism) or behavioral (e.g., uniparental care of offspring) differences, but sex is rarely included in studies of occurrence or occupancy. We evaluated differences in landscape-scale occurrence, as a function of habitat amount and configuration, between male and female American martens in the heterogeneous, commercially-managed forests of northern Maine. Our analysis focused on resident adults; individuals that had...

Gene expression underlying parenting and being parented shows limited plasticity in response to different ambient temperatures

Jeanette Moss, Christopher Cunningham, Elizabeth McKinney & Allen Moore
Flexible interactions between parents and offspring are essential for buffering families against variable, unpredictable, and challenging environmental conditions. In the subsocial carrion beetle, Nicrophorus orbicollis, mid-summer temperatures impose steep fitness costs on parents and offspring but do not elicit behavioral plasticity in parents. Here, we ask if plasticity of gene expression underpins this behavioral stability or facilitates independent compensation by larvae. To test this, we characterized gene expression of parents and offspring before and during...

Developmental evidence for parental conflict in driving Mimulus species barriers

Gabrielle Sandstedt & Andrea Sweigart
The endosperm, a tissue that nourishes the embryo in the seeds of flowering plants, is often disrupted in inviable hybrid seeds between closely related species. A key question is whether parental conflict is a major driver of this common form of reproductive isolation. Here, we performed reciprocal crosses between pairs of three monkeyflower species (Mimulus caespitosa, M. tilingii, and M. guttatus). The severity of hybrid seed inviability varies among these crosses, which we inferred to...

Additional file 4 of The rhizosphere bacterial community contributes to the nutritional competitive advantage of weedy rice over cultivated rice in paddy soil

Yue Wu, Jian Sun, Pengcheng Yu, Weiliang Zhang, Youze Lin & Dianrong Ma
Additional file 4. Table S2. Node names and their degree in co-occurrence network diagrams of different groups.

Evaluation and analysis of anxiety and depression symptoms for college students during COVID-19 pandemic

Dingwei Gao, Qingzhi Xiang, Ganghua Lu, Junyu Tong, Wen Jiang, Xiaqing Yu, Ru Wang, Zhongwei Lv & Dan Li
Abstract Background The mental health of students is affected by COVID-19. We aim to evaluate the anxiety and depression symptoms among college students during COVID-19 pandemic, analyze the influence factors that contribute to college students’ anxiety and depression symptoms, and provide some suggestions for improving the mental health of college students. Methods With 179 college students participating, an online questionnaire consisting of a general questionnaire, Generalized Anxiety Disorder (GAD-7), and Patient Health Questionnaire (PHQ-9) was...

Differential equity in access to public and private coastal infrastructure in the Southeastern United States

Jeffrey Beauvais, James Byers & Nathan Nibbelink
Despite the ubiquity of coastal infrastructure, it is unclear what factors drive its placement, particularly for water access infrastructure (WAI) that facilitates entry to coastal ecosystems such as docks, piers, and boat landings. The placement of WAI has both ecological and social dimensions, and certain segments of coastal populations may have differential access to water. In this study, we employed an environmental justice framework to assess how public and private WAI in South Carolina, USA...

Transcriptional networks underlying a primary ovarian insufficiency disorder in alligators naturally exposed to EDCs: Transformed read counts and supplementary materials

Matthew Hale, Therese Koal, Tuan Hai Pham, John Bowden & Ben Parrott
Interactions between the endocrine system and environmental contaminants are responsible for impairing reproductive development and function. Despite the taxonomic diversity of affected species and attendant complexity inherent to natural systems, the underlying signaling pathways and cellular consequences are mostly studied in lab models. To resolve the genetic and endocrine pathways that mediate affected ovarian function in organisms exposed to endocrine disrupting contaminants in their natural environments, we assessed broad-scale transcriptional and steroidogenic responses to exogenous...

Megafruit and megafauna diversity are positively associated, while megafruit traits are related to abiotic factors, in Tropical Asia

Kim McConkey, Ahimsa Campos-Arceiz, Richard Corlett, Sushma H. S., Lisa Ong & Jedediah Brodie
Aim For tens of millions of years, herbivorous megafauna were abundant across the globe, fulfilling important ecological roles including seed dispersal. Megafruits are very large fruits that are dispersed most effectively by megafauna. However, megafruits also occur in ecosystems where megafauna are extinct or were never present, emphasizing our incomplete understanding of megafauna-megafruit relationships. Here we use the complex biogeography of tropical Asia to investigate how megafruit diversity and traits are associated with the diversity...

Results of survey for selected parasites in Alaska brown bears (Ursus arctos)

Ellen Haynes, Sarah Coker, Michael Yabsley, Kevin Niedrighaus, Andrew Ramey, Guilherme Verocai, Grant Hilderbrand, Kyle Joly, David Gustine, Buck Mangipane, William Leacock, Anthony Crupi & Christopher Cleveland
To assess the prevalence of endo- and ectoparasites in Alaska brown bears (Ursus arctos), blood and fecal samples were collected during 2013 – 2016 from five locations: Gates of the Arctic National Park and Preserve (GAAR), Katmai National Park (KATM), Lake Clark National Park and Preserve (LACL), Yakutat Forelands (YAK), and Kodiak Island (KOD). Standard fecal centrifugal-flotation was used to screen for gastrointestinal parasites, molecular techniques were used to test blood for the presence of...

Additional file 4 of The rhizosphere bacterial community contributes to the nutritional competitive advantage of weedy rice over cultivated rice in paddy soil

Yue Wu, Jian Sun, Pengcheng Yu, Weiliang Zhang, Youze Lin & Dianrong Ma
Additional file 4. Table S2. Node names and their degree in co-occurrence network diagrams of different groups.

The rhizosphere bacterial community contributes to the nutritional competitive advantage of weedy rice over cultivated rice in paddy soil

Yue Wu, Jian Sun, Pengcheng Yu, Weiliang Zhang, Youze Lin & Dianrong Ma
Abstract Background Weedy rice competes for nutrients and living space with cultivated rice, which results in serious reductions in rice production. The rhizosphere bacterial community plays an important role in nutrient competition between species. It is therefore important to clarify the differences in the diversities of the inter rhizosphere bacterial community between cultivated rice and weedy rice. The differences in compositions and co-occurrence networks of the rhizosphere bacterial community of cultivated rice and weedy rice...

The rhizosphere bacterial community contributes to the nutritional competitive advantage of weedy rice over cultivated rice in paddy soil

Yue Wu, Jian Sun, Pengcheng Yu, Weiliang Zhang, Youze Lin & Dianrong Ma
Abstract Background Weedy rice competes for nutrients and living space with cultivated rice, which results in serious reductions in rice production. The rhizosphere bacterial community plays an important role in nutrient competition between species. It is therefore important to clarify the differences in the diversities of the inter rhizosphere bacterial community between cultivated rice and weedy rice. The differences in compositions and co-occurrence networks of the rhizosphere bacterial community of cultivated rice and weedy rice...

Fire, grazers and browsers interact with grass competition to determine tree establishment in an African savanna

Jason Donaldson, Ricardo Holdo, T. Michael Anderson & Jeremia Sarakikya
In savanna ecosystems, fire and herbivory alter the competitive relationship between trees and grasses. Mechanistically, grazing herbivores favor trees by removing grass, which reduces tree-grass competition and limits fire. Conversely, browsing herbivores consume trees and limit their recovery from fire. Herbivore feeding decisions are in turn shaped by risk-resource trade-offs that potentially determine the spatial patterns of herbivory. Identifying the dominant mechanistic pathways by which fire and herbivores control tree cover remains challenging, but is...

Allegheny Woodrat occupancy across Western Virginia, United States

Jason Lombardi, Michael Mengak & Steven Castleberry
The Allegheny woodrat (Neotoma magister), a rock outcrop habitat specialist, has suffered drastic reductions in geographic range over the past 40 years. Previous research has examined habitat characteristics at varying spatial scales, but none have used occupancy modeling to examine trends over time. Therefore, we used presence/absence data from live trapping to assess environmental variables likely to influence Allegheny woodrat occupancy and detection patterns at a regional scale across western Virginia, USA, from 2009 to...

Haplocauda, a new genus of fireflies endemic to the Amazon Rainforest (Coleoptera: Lampyridae)

Luiz Felipe Lima Da Silveira, William Lima, Cláudio Ruy Vasconcelos Da Fonseca & Joseph McHugh
Most firefly genera have poorly defined taxonomic boundaries, especially in the Neotropics, where they are more diverse and more difficult to identify. Recent advances that shed light on the diversity of fireflies in South America have focused mainly on Atlantic Rainforest taxa, whereas lampyrids in other biomes remained largely unstudied. We found three new firefly species endemic to the Amazon basin that share unique traits of the male abdomen where sternum VIII and the pygidium...

Numerical model simulating the sea ice and ocean conditions in the Amundsen Sea over the period Jan. 1, 2006 to Dec. 31, 2013

Pierre St-Laurent, Eileen E. Hofmann, Robert M. Sherrell, Sharon E. Stammerjohn, Patricia L. Yager, Mathew Biddle & Amber D. York
Numerous coastal polynyas fringe the Antarctic continent and strongly influence the productivity of Antarctic shelf systems. Of the 46 Antarctic coastal polynyas documented in a recent study, the Amundsen Sea Polynya (ASP) stands out as having the highest net primary production per unit area. Incubation experiments suggest that this productivity is partly controlled by the availability of dissolved iron (dFe). As a first step toward understanding the iron supply of the ASP, we introduce four...

Epidendrum radicans - genetic data of 4 regional populations

Dorset Trapnell & J.L. Hamrick
Colonization is a fundamental ecological process that is important for the persistence of species, particularly when a changing environment necessitates range shifts. Vacant habitats available for colonization often arise from landscape disturbance. Colonization and population expansion processes can be inferred by examining the levels and spatial distribution of genetic variation of plant populations with known disturbance histories. Samples (N = 690) of the terrestrial orchid, Epidendrum radicans, were collected from five lava flow sites on...

Fitness of gnotobiotic Rhodnius prolixus nymphs

Kevin Vogel, Carissa Gilliland, Vilas Patel, Ashley Dombrowski & Bradley Mackett
Kissing bugs (Hempitera: Reduviidae) are obligately and exclusively blood feeding insects. Vertebrate blood is thought to provide insufficient B vitamins to insects, which rely on obligate symbiotic relationships with bacteria that provision these nutrients. Kissing bugs harbor environmentally acquired bacteria in their gut lumen, without which they are unable to develop to adulthood. Early experiments identified a single bacterial species, Rhodococcus rhodnii, as a symbiont of Rhodnius prolixus, but modern studies of the kissing bug...

Registration Year

  • 2022
    52

Resource Types

  • Dataset
    40
  • Text
    7
  • Collection
    4
  • Conference Paper
    1

Affiliations

  • University of Georgia
    52
  • Fudan University
    16
  • Chinese Academy of Medical Sciences & Peking Union Medical College
    16
  • Sichuan University
    13
  • Shanghai University of Traditional Chinese Medicine
    12
  • University of Cambridge
    12
  • Second Hospital of Hebei Medical University
    12
  • Shenyang Agricultural University
    12
  • Nankai University
    12
  • Affiliated Hospital of Qingdao University
    11