89 Works

Data from: Severe acute dehydration in a desert rodent elicits a transcriptional response that effectively prevents kidney injury

Matthew David MacManes
Animals living in desert environments are forced to survive despite severe heat, intense solar radiation, and both acute and chronic dehydration. These animals have evolved phenotypes that effectively address these environmental stressors. To begin to understand the ways in which the desert-adapted rodent P. eremicus survives, we performed an experiment where we subjected reproductively mature adults to 72 hours of water deprivation, during which they lost on average 23% of their body weight. The animals...

Data from: An experimental test of buffer utility as a technique for managing pool-breeding amphibians

Jessica S. Veysey Powell & Kimberly J. Babbitt
Vegetated buffers are used extensively to manage wetland-dependent wildlife. Despite widespread application, buffer utility has not been experimentally validated for most species. To address this gap, we conducted a six-year, landscape-scale experiment, testing how buffers of different widths affect the demographic structure of two amphibian species at 11 ephemeral pools in a working forest of the northeastern U.S. We randomly assigned each pool to one of three treatments (i.e., reference, 100m buffer, 30m buffer) and...

Data from: Limited influence of local and landscape factors on finescale gene flow in two pond-breeding amphibians

Stephanie S. Coster, Kimberly J. Babbitt, Andrew Cooper & Adrienne I. Kovach
Dispersal and gene flow within animal populations are influenced by the composition and configuration of the landscape. In this study, we evaluated hypotheses about the impact of natural and anthropogenic factors on genetic differentiation in two amphibian species, the spotted salamander (Ambystoma maculatum) and the wood frog (Lithobates sylvaticus) in a commercial forest in central Maine. We conducted this analysis at two scales: a local level, focused on factors measured at each breeding pond and...

Data from: Decipher soil organic carbon dynamics and driving forces across China using machine learning

Huiwen Li, Yiping Wu, Shuguang Liu, Jingfeng Xiao, Wenzhi Zhao, Ji Chen, Georgii Alexandrov & Yue Cao
The dynamics of soil organic carbon (SOC) play a critical role in modulating global warming. However, the long-term spatiotemporal changes of SOC at large scale and the impacts of driving forces remain unclear. In this study, we investigated the dynamics of SOC in different soil layers across China through the 1980s to 2010s using a machine learning approach and quantified the impacts of the key factors based on factorial simulation experiments. Our results showed that...

A rare 300 kilometer dispersal by an adult male white-tailed deer

Remington Moll
Despite the key roles that dispersal plays in individual animal fitness and meta-population gene flow, it remains one of the least understood behaviors in many species. In large mammalian herbivores, dispersals might span long distances and thereby influence landscape-level ecological processes, such as infectious disease spread. Here we describe and analyze an exceptional long-distance dispersal by an adult white-tailed deer (Odocoileus virginianus) in the central United States. We also conducted a literature survey to compare...

Natural 15N abundance of bulk soil N, ammonium, and nitrate in soil profiles

Geshere Abdisa Gurmesa, Erik A Hobbie, Shasha Zhang, Ang Wang, Feifei Zhu, Weixing Zhu, Keisuke Koba, Muneoki Yoh, Chuankuan Wang, Qiuliang Zhang & Yunting Fang
Assessment of nitrogen (N) saturation of forests is critical to evaluate how ecosystems will respond to current and future global changes such as N deposition. However, quantifying N saturation remains a challenge. We developed a conceptual model of N saturation stages in forest ecosystems based on i) a hypothetical relative rate of ammonification, nitrification, and denitrification, ii) concentrations of ammonium and nitrate in the soil, and iii) 15N enrichment pattern of bulk soil N, ammonium,...

Wolves are back: Sociopolitical identity and opinions on management of Canis lupus

Joel Hartter & Lawrence Hamilton
In 2010 an interdisciplinary team of social and natural scientists began a project to study society–environment interactions in northeast Oregon. At first, the Communities and Forests in Oregon (CAFOR) project focused on Baker, Union and Wallowa Counties. Subsequently the project’s scope expanded to cover Crook, Grant, Umatilla and Wheeler Counties. One part of the CAFOR research involved a series of telephone surveys carried out in four stages over 2011 to 2018. The surveys employed consistent...

First Youth Internet Safety Survey (YISS-1)

David Finkelhor, Kimberly Mitchell & Janis Wolak
The First Youth Internet Safety Survey (YISS-1) is a telephone survey of a national sample of 1,501 youth, ages 10 to 17, and their parents, to assess the incidence, consequences and risk factors related to unwanted or illegal exposure of children and adolescents to sexual solicitation, harassment and pornography on the Internet and to determine children's and parent's knowledge of how to respond to such episodes. Results indicate that approximately one in five youth (19%)...

Data from: Characterization of the transcriptome, nucleotide sequence polymorphism, and natural selection in the desert adapted mouse Peromyscus eremicus

Matthew MacManes & Michael Eisen
As a direct result of intense heat and aridity, deserts are thought to be among the most harsh of environments, particularly for their mammalian inhabitants. Given that osmoregulation can be challenging for these animals, with failure resulting in death, strong selection should be observed on genes related to the maintenance of water and solute balance. One such animal, Peromyscus eremicus, is native to the desert regions of the southwest United States and may live its...

Data from: The oceanic concordance of phylogeography and biogeography: a case study in Notochthamalus

Christine Ewers-Saucedo, James M. Pringle, Hector H. Sepúlveda, James E. Byers, Sergio A. Navarrete & John P. Wares
Dispersal and adaptation are the two primary mechanisms that set the range distributions for a population or species. As such, understanding how these mechanisms interact in marine organisms in particular – with capacity for long-range dispersal and a poor understanding of what selective environments species are responding to – can provide useful insights for the exploration of biogeographic patterns. Previously, the barnacle Notochthamalus scabrosus has revealed two evolutionarily distinct lineages with a joint distribution that...

Third National Juvenile Online Victimization Incidence Study (NJOV-3)

Janis Wolak, David Finkelhor & Kimberly J. Mitchell
The 3rd National Online Victimization Study (NJOV-3) is the third wave of a longitudinal study. Wave 1 (NJOV-1) pertained to arrests for technology-facilitated crimes (e.g., sex offenders using the Internet to meet minors, solicitations to undercover investigators posing online as minors, downloading of child pornography) that occurred between July 1, 2000 and June 30, 2001; Wave 2 (NJOV-2) pertained to arrests during 2006. NJOV-3 collected data about technology-facilitated child sexual exploitation crimes ending in arrest...

Genomic data reveal the biogeographic and demographic history of Ammospiza sparrows in northeast tidal marshes

Jennifer Walsh, Adrienne Kovach, Phred Benham, Gemma Clucas, Virginia Winder & Irby Lovette
Aim: Shaped by both climate change and sea-level rise, tidal salt marshes represent ephemeral systems that are home to only a few, highly specialized species. The dynamic ecological histories and spatial complexities of these habitats, however, render it challenging to reconstruct the complete biogeographic histories of their endemic taxa. Here, we leverage three species of North American Ammospiza sparrows that inhabit tidal marshes ( Ammospiza caudacuta, A. maritima, and A. n. subvirgatus) and closely related...

Low-pH seawater alters indirect interactions in rocky-shore tidepools

Brittany Jellison, Brian Gaylord, Aaron Ninokawa, Kristen Elsmore, Gabriel Ng, Jeffrey Miller & Tessa Hill
Ocean acidification is expected to degrade marine ecosystems, yet most studies focus on organismal-level impacts rather than ecological perturbations. Field studies are especially sparse, particularly ones examining shifts in direct and indirect consumer interactions. Here we address such connections within tidepool communities of rocky shores, focusing on a three-level food web involving the keystone sea star predator, Pisaster ochraceus, a common herbivorous snail, Tegula funebralis, and a macroalgal basal resource, Macrocystis pyrifera. We demonstrate that...

Soil chemical variables improve models of understory plant species distributions

Nathan Roe, Mark Ducey, Thomas Lee, Olivia Fraser, Robert Colter & Richard Hallett
Aim To determine the importance of soil variables relative to more commonly used topo-climatic or remotely sensed variables in species distribution models (SDMs) for understory plants. Location White Mountain National Forest, New Hampshire, U.S.A. Methods We fit models for presence of 41 forest understory plant species across 158 plots using soil, topographic, and spectral predictors to determine the relative contribution of different predictor types. We determined (a) if the potential importance of soil variables is...

Immature Sirex noctilio woodwasp size and sex dataset

Jeff Garnas
Resource quality can have direct or indirect effects on female oviposition choice, offspring growth and survival, and ultimately on body size and sex ratio. We examined these patterns in Sirex noctilio Fabricus, the globally invasive European pine woodwasp, in South African Pinus patula plantations. We studied how tree position as well as natural variation in biotic and abiotic factors influenced sex-specific density, larval size, tunnel length, male proportion, and survival across development. Twenty infested trees...

Datasets for Comparison of methods for estimating omnidirectional landscape connectivity

Melissa Clark, Payton Phillips, Suraj Baral, Erin Koen & Jeff Bowman
This repository holds the raster data and the configuration files (.ini) files used to create the simulated resistance grids and omnidirectional connectivity methods in "Comparison of methods for estimating omnidirectional landscape connectivity". There are reisstance grids for each of the two sections (simulated resistance grids and omnidirectional connectivity methods) and .ini files for each run with each method (point, wall-to-wall, and omniscape. The .ini files can be run in Julia computing language. Ecological connectivity is...

Data from: Molecular clocks indicate turnover and diversification of modern coleoid cephalopods during the Mesozoic Marine Revolution

Alastair R. Tanner, Dirk Fuchs, Inger E. Winkelmann, Thomas P. Gilbert, M. Sabrina Pankey, Angela M. Ribeiro, Kevin M. Kocot, Kenneth M. Halanych, Todd H. Oakley, Rute R. Da Fonseca, Davide Pisani, Jakob Vinther & M. Thomas P. Gilbert
Coleoid cephalopod molluscs comprise squid, cuttlefish and octopuses, and represent nearly the entire diversity of modern cephalopods. Sophisticated adaptations such as the use of colour for camouflage and communication, jet propulsion and the ink sac highlight the unique nature of the group. Despite these striking adaptations, there are clear parallels in ecology between coleoids and bony fishes. The coleoid fossil record is limited, however, hindering confident analysis of the tempo and pattern of their evolution....

Data from: Adaptation to heat stress reduces phenotypic and transcriptional plasticity in a marine copepod

Morgan W. Kelly, M. Sabrina Pankey, Melissa B. DeBiasse & David C. Plachetzki
Organisms may respond to changing environments through phenotypic plasticity or adaptive evolution. These two processes are not mutually exclusive and may either dampen or strengthen each other's effects, depending on the genetic correlation between trait values and the slopes of their norms of reaction. To examine the effect of adaptation to heat stress on the plasticity of heat tolerance, we hybridized populations of the crustacean Tigriopus californicus that show divergent phenotypes for heat tolerance. We...

Data from: De novo genome assembly of Geosmithia morbida, the causal agent of thousand cankers disease

Taruna A. Schuelke, Anthony Westbrook, Kirk Broders, Keith Woeste & Matthew D. MacManes
Geosmithia morbida is a filamentous ascomycete that causes thousand cankers disease in the eastern black walnut tree. This pathogen is commonly found in the western U.S.; however, recently the disease was also detected in several eastern states where the black walnut lumber industry is concentrated. G. morbida is one of two known phytopathogens within the genus Geosmithia, and it is vectored into the host tree via the walnut twig beetle. We present the first de...

Data from: Efficacy of a probiotic bacterium to treat bats affected by the disease white-nose syndrome

Tina L. Cheng, Heather Mayberry, Liam P. McGuire, Joseph R. Hoyt, Kate E. Langwig, Hung Nguyen, Katy L. Parise, Jeffrey T. Foster, Craig K. R. Willis, Auston Marm Kilpatrick & Winifred F. Frick
The management of infectious diseases is an important conservation concern for a growing number of wildlife species. However, effective disease control in wildlife is challenging because feasible management options are often lacking. White-nose syndrome (WNS) is an infectious disease of hibernating bats that currently threatens several North American species with extinction. Currently, no effective treatments exist for WNS. We conducted a laboratory experiment to test the efficacy of treatment with Pseudomonas fluorescens, a bacterium that...

Data from: Cover crop root contributions to soil carbon in a no-till corn bioenergy cropping system

Emily E. Austin, Kyle Wickings, Marshall D. McDaniel, G. Philip Robertson & A. Stuart Grandy
Crop residues are potential biofuel feedstocks, but residue removal may reduce soil carbon (C). The inclusion of a cover crop in a corn bioenergy system could provide additional biomass, mitigating the negative effects of residue removal by adding to stable soil C pools. In a no-till continuous corn bioenergy system in the northern US Corn Belt, we used 13CO2 pulse labeling to trace plant C from a winter rye (Secale cereale) cover crop into different...

Data from: Disentangling elevational richness: a multi-scale hierarchical Bayesian occupancy model of Colorado ant communities

Tim M. Szewczyk & Christy M. McCain
Understanding the forces that shape the distribution of biodiversity across spatial scales is central in ecology and critical to effective conservation. To assess effects of possible richness drivers, we sampled ant communities on four elevational transects across two mountain ranges in Colorado, USA, with seven or eight sites on each transect and twenty repeatedly sampled pitfall trap pairs at each site each for a total of 90 days. With a multi-scale hierarchical Bayesian community occupancy...

ACE MAG SWEPAM 4-min merged IMF+plasma data

David McComas, Charles Smith, Ruth Skoug, Dot Delapp, Heather Elliott & Andrew Davis
ACE MAG and SWEPAM 4-min merged magnetic field and plasma parameter moments data at NASA Space Science Data Center.

Data from: Cereal rye mulch biomass and crop density affect weed suppression and community assembly in no-till planted soybean

Uriel Menalled, Guillaume ADEUX, Stéphane CORDEAU, Richard G. Smith, Steven B. Mirsky & Matthew Ryan

Data from: Brain transcriptional profiles of male alternative reproductive tactics and females in bluegill sunfish

Charlyn G. Partridge, Matthew D. MacManes, Rosemary Knapp & Bryan D. Neff
Bluegill sunfish (Lepomis macrochirus) are one of the classic systems for studying male alternative reproductive tactics (ARTs) in teleost fishes. In this species, there are two distinct life histories: parental and cuckolder, encompassing three reproductive tactics, parental, satellite, and sneaker. The parental life history is fixed, whereas individuals who enter the cuckolder life history transition from sneaker to satellite tactic as they grow. For this study, we used RNAseq to characterize the brain transcriptome of...

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  • University of New Hampshire
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