22 Works

Data from: Spatial and temporal patterns of larval dispersal in a coral-reef fish metapopulation: evidence of variable reproductive success

Timothy J. Pusack, Mark R. Christie, Darren W. Johnson, Christopher D. Stallings & Mark A. Hixon
Many marine organisms can be transported hundreds of kilometers during their pelagic larval stage, yet little is known about spatial and temporal patterns of larval dispersal. Although traditional population-genetic tools can be applied to infer movement of larvae on an evolutionary time scale, large effective population sizes and high rates of gene-flow present serious challenges to documenting dispersal patterns over shorter, ecologically-relevant, time scales. Here, we address these challenges by combining direct parentage analysis and...

Data from: Genomes of diverse isolates of the marine cyanobacterium Prochlorococcus

Steven J. Biller, Paul M. Berube, Jessie W. Berta-Thompson, Libusha Kelly, Sara E. Roggensack, Lana Awad, Kathryn H. Roache-Johnson, Huiming Ding, Stephen J. Giovannoni, Lisa R. Moore & Sallie W. Chisholm
The marine cyanobacterium Prochlorococcus is the numerically dominant photosynthetic organism in the oligotrophic oceans, and a model system in marine microbial ecology. Here we report 27 new whole genome sequences (2 complete and closed; 25 of draft quality) of cultured isolates, representing five major phylogenetic clades of Prochlorococcus. The sequenced strains were isolated from diverse regions of the oceans, facilitating studies of the drivers of microbial diversity—both in the lab and in the field. To...

Data from: Are macroalgal blooms necessarily bad? Nutrient impacts on seagrass in upwelling-influenced estuaries

Margot L. Hessing-Lewis, Sally D. Hacker, Bruce A. Menge, Sea-Oh McConville & Jeremy Henderson
Knowledge of nutrient pathways and their resulting ecological interactions can alleviate numerous environmental problems associated with nutrient increases in both natural and managed systems. Although not unique, coastal systems are particularly prone to complex ecological interactions resulting from nutrient inputs from both the land and sea. Nutrient inputs to coastal systems often spur ulvoid macroalgal blooms, with negative consequences for seagrasses, primarily through shading, as well as through changes in local biogeochemistry. We conducted complementary...

Data from: Eyespots deflect predator attack increasing fitness and promoting the evolution of phenotypic plasticity

Kathleen L. Prudic, Andrew M. Stoehr, Bethany R. Wasik & Antónia Monteiro
Some eyespots are thought to deflect attack away from the vulnerable body, yet there is limited empirical evidence for this function and its adaptive advantage. Here, we demonstrate the conspicuous ventral hindwing eyespots found on Bicyclus anynana butterflies protect against invertebrate predators, specifically praying mantids. Wet season (WS) butterflies with larger, brighter eyespots were easier for mantids to detect, but more difficult to capture compared to dry season (DS) butterflies with small, dull eyespots. Mantids...

Data from: Phenotype-environment association of the oxygen transport system in trimorphic European whitefish (Coregonus lavaretus) populations

Melissa L. Evans, Kim Præbel, Stefano Peruzzi, Per-Arne Amundsen & Louis Bernatchez
Replicated adaptive radiation events, typified by phenotypic divergence across resource axes, provide important insight into the eco-evolutionary dynamics that lead to the formation of new species. Here, we show that in trimorphic adaptive radiations of European whitefish (Coregonus lavaretus), divergence of the oxygen transport system has occurred across the pelagic/littoral (shallow)—profundal (deep) resource axis, and at multiple biological scales. Profundal whitefish exhibited significantly larger red blood cells (RBCs), a greater proportion of cathodic hemoglobin protein...

Data from: Species identification and likely catch time period of whale bones from South Georgia

Angela L. Sremba, Anthony R. Martin & C. Scott Baker
Skeletal remains of baleen whales killed during the onset of 20th century commercial whaling lie scattered across the shores and abandoned whaling stations of the subantarctic island of South Georgia. Here we report on genetic species identification of whale bones collected from South Georgia using standard historical DNA protocols. We amplified and sequenced short fragments of the mitochondrial DNA (mtDNA) control region from 281 available bone samples. Of these, 231 provided mtDNA sequences of sufficient...

Data from: Phylogenetic signal detection from an ancient rapid radiation: effects of noise reduction, long-branch attraction, and model selection in crown clade Apocynaceae

Shannon C. K. Straub, Michael J. Moore, Pamela S. Soltis, Douglas E. Soltis, Aaron Liston, Tatyana Livshultz & Shannon C.K. Straub
Crown clade Apocynaceae comprise seven primary lineages of lianas, shrubs, and herbs with a diversity of pollen aggregation morphologies including monads, tetrads, and pollinia, making them an ideal group for investigating the evolution and function of pollen packaging. Traditional molecular systematic approaches utilizing small amounts of sequence data have failed to resolve relationships along the spine of the crown clade, a likely ancient rapid radiation. The previous best estimate of the phylogeny was a five-way...

Data from: Landscape effects on gene flow for a climate-sensitive montane species, the American pika

Jessica A. Castillo, Clinton W. Epps, Anne R. Davis & Samuel A. Cushman
Climate change is arguably the greatest challenge to conservation of our time. Most vulnerability assessments rely on past and current species distributions to predict future persistence but ignore species' abilities to disperse through landscapes, which may be particularly important in fragmented habitats and crucial for long-term persistence in changing environments. Landscape genetic approaches explore the interactions between landscape features and gene flow and can clarify how organisms move among suitable habitats, but have suffered from...

Data from: Infectious disease transmission and behavioral allometry in wild mammals

Barbara A. Han, Andrew W. Park, Anna Jolles, Sonia Altizer & Anna E. Jolles
1. Animal social and movement behaviors can impact the transmission dynamics of infectious diseases, especially for pathogens transmitted through close contact between hosts or through contact with infectious stages in the environment. 2. Estimating pathogen transmission rates and R0 from natural systems can be challenging. Because host behavioral traits that underlie the transmission process vary predictably with body size, one of the best-studied traits among animals, body size might therefore also predict variation in parasite...

Data from: Degree of host susceptibility in the initial disease outbreak influences subsequent epidemic spread

Paul M. Severns, Laura K. Estep, Kathryn E. Sackett & Christopher C. Mundt
1. Disease epidemics typically begin as an outbreak of a relatively small, spatially explicit population of infected individuals (focus), in which disease prevalence increases and rapidly spreads into the uninfected, at-risk population. Studies of epidemic spread typically address factors influencing disease spread through the at-risk population, but the initial outbreak may strongly influence spread of the subsequent epidemic. 2. We initiated wheat stripe rust Puccinia striiformis f. sp. tritici epidemics to assess the influence of...

Data from: Molecular phylogenetics and microsatellite analysis reveals cryptic species of speckled dace (Cyprinidae: Rhinichthys osculus) in Oregon’s Great Basin

Kendra Hoekzema & Brian L. Sidlauskas
Speckled dace (Rhinichthys osculus) is a small cyprinid that occurs throughout western North America and is the most commonly occurring fish in Oregon. Because of the high genetic and morphological variation in this species across its range, it has been referred to as a species complex; however, no revision to its taxonomy has occurred since 1984. Here, the phylogenetics and population genetics of speckled dace are examined throughout Oregon’s Great Basin to describe genetic variation...

Data from: A continental scale trophic cascade from wolves through coyotes to foxes

Thomas M. Newsome & William J. Ripple
Top-down processes, via the direct and indirect effects of interspecific competitive killing (no consumption of the kill) or intraguild predation (consumption of the kill), can potentially influence the spatial distribution of terrestrial predators, but few studies have demonstrated the phenomenon at a continental scale. For example, in North America, grey wolves (Canis lupus) are known to kill coyotes (Canis latrans), and coyotes, in turn, may kill foxes (Vulpes spp.), but the spatial effects of these...

Data from: Dispersal ability and habitat requirements determine landscape-level genetic patterns in desert aquatic insects

Ivan C. Phillipsen, Emily H. Kirk, Michael T. Bogan, Meryl C. Mims, Julian D. Olden & David A. Lytle
Species occupying the same geographic range can exhibit remarkably different population structures across the landscape, ranging from highly diversified to panmictic. Given limitations on collecting population-level data for large numbers of species, ecologists seek to identify proximate organismal traits—such as dispersal ability, habitat preference and life history—that are strong predictors of realized population structure. We examined how dispersal ability and habitat structure affect the regional balance of gene flow and genetic drift within three aquatic...

Data from: Trophic omnivory across a productivity gradient: intraguild predation theory and the structure and strength of species interactions

Mark Novak
Intraguild predation theory centres on two predictions: (i) for an omnivore and an intermediate predator (IG-prey) to coexist on shared resources, the IG-prey must be the superior resource competitor, and (ii) increasing resource productivity causes the IG-prey's equilibrium abundance to decline. I tested these predictions with a series of species-rich food webs along New Zealand's rocky shores, focusing on two predatory whelks, Haustrum haustorium, a trophic omnivore, and Haustrum scobina, the IG-prey. In contrast to...

Data from: An unexpected clade of South American ground beetles (Coleoptera: Carabidae: Bembidion)

David R. Maddison & David Maddison
Phylogenetic relationships of the Antiperyphanes Complex of the genus Bembidion are inferred using DNA sequences from seven genes (two nuclear ribosomal, four nuclear protein coding, and one mitochondrial protein coding). Redefined subgenera within the complex are each well-supported as monophyletic. Most striking was the discovery that a small set of morphologically and ecologically heterogeneous species formed a clade, here called subgenus Nothonepha. This unexpected result was corroborated by the discovery of deep pits in the...

Data from: Tropical rabbitfish and the deforestation of a warming temperate sea

Adriana Vergés, Fiona Tomas, Emma Cebrian, Enric Ballesteros, Zafer Kizilkaya, Panagiotis Dendrinos, Alexandros A. Karamanlidis, David Spiegel & Enric Sala
A striking example of climate-mediated range shifts in marine systems is the intrusion of tropical species into temperate areas worldwide, but we know very little about the ecological consequences of these range expansions. In the Mediterranean Sea, the range expansion of tropical rabbitfishes that first entered the basin via the Suez Canal provides a good example of how tropical herbivorous fish can impact the structure of rocky bottoms in temperate seas. Two species of rabbitfishes...

Data from: Paired-end analysis of transcription start sites in Arabidopsis reveals plant-specific promoter signatures

Taj Morton, Jalean Petricka, David L. Corcoran, Song Li, Cara M. Winter, Alexa Carda, Philip N. Benfey, Uwe Ohler & Molly Megraw
Understanding plant gene promoter architecture has long been a challenge due to the lack of relevant large-scale data sets and analysis methods. Here, we present a publicly available, large-scale transcription start site (TSS) data set in plants using a high-resolution method for analysis of 5′ ends of mRNA transcripts. Our data set is produced using the paired-end analysis of transcription start sites (PEAT) protocol, providing millions of TSS locations from wild-type Columbia-0 Arabidopsis thaliana whole...

Data from: Host species composition influences infection severity among amphibians in the absence of spillover transmission

Barbara A. Han, Jacob L. Kerby, Catherine L. Searle, Andrew Storfer, Andy R. Blaustein & Andrew R. Blaustein
Wildlife epidemiological outcomes can depend strongly on the composition of an ecological community, particularly when multiple host species are affected by the same pathogen. However, the relationship between host species richness and disease risk can vary with community context and with the degree of spillover transmission that occurs among co-occurring host species. We examined the degree to which host species composition influences infection by Batrachochytrium dendrobatidis (Bd), a widespread fungal pathogen associated with amphibian population...

Data from: A tapetal ablation transgene induces stable male-sterility and slows field growth in Populus

Estefania Elorriaga, Richard Meilan, Cathleen Ma, Jeffrey S. Skinner, Elizabeth Etherington, Amy Brunner & Steven H. Strauss
The field performance of genetic containment technologies–considered important for certain uses of transgenic trees in forestry–is poorly known. We tested the efficiency of a barnase gene driven by the TA29 tapetum-dominant promoter for influencing growth rate and inducing male sterility in a field trial of transgenic hybrid poplar (Populus tremula × Populus tremuloides). When the growth of 18 transgenic insertion events with the sterility transgene were compared to non-transgenic controls after two growing seasons, they...

Data from: Integrating transcriptional, metabolomic, and physiological responses to drought stress and recovery in switchgrass (Panicum virgatum L.)

Eli Meyer, Michael J. Aspinwall, David B. Lowry, Juan Diego Palacio-Mejía, Tierney L. Logan, Philip A. Fay & Thomas E. Juenger
Background: In light of the changes in precipitation and soil water availability expected with climate change, understanding the mechanisms underlying plant responses to water deficit is essential. Toward that end we have conducted an integrative analysis of responses to drought stress in the perennial C4 grass and biofuel crop, Panicum virgatum (switchgrass). Responses to soil drying and re-watering were measured at transcriptional, physiological, and metabolomic levels. To assess the interaction of soil moisture with diel...

Data from: Functional connectivity experiments reflect routine movement behavior of a tropical hummingbird species

Noelia Laura Volpe, Adam S. Hadley, W. Douglas Robinson & Matthew G. Betts
Translocation experiments, in which researchers displace animals then monitor their movements to return home, are commonly used as tools to assess functional connectivity of fragmented landscapes. Such experiments are purported to have important advantages of being time efficient and standardizing 'motivation' to move across individuals. Yet, we lack tests of whether movement behavior of translocated birds reflects natural behavior of unmanipulated birds. We compared the routine movement behavior of a tropical hummingbird (Phaethornis guy) to...

Data from: Species delimitation in the ground beetle subgenus Liocosmius (Coleoptera: Carabidae: Bembidion), including standard and next-generation sequencing of museum specimens

David R. Maddison & Kenneth W. Cooper
The species of subgenus Liocosmius Casey of genus Bembidion Latreille are delimited and documented using DNA sequences from eight genes, morphological data, and geography. The subgenus consists of six known species, three of which are described as new: Bembidion orion Cooper and Maddison (California), B. darlingtonielum Cooper and Maddison (California), and B. cooperi Maddison (New Mexico and Arizona). The group ranges from British Columbia south to Baja California, and east to Colorado and New Mexico,...

Registration Year

  • 2014

Resource Types

  • Dataset


  • Oregon State University
  • Purdue University
  • University of South Dakota
  • University of Washington
  • The University of Texas at Austin
  • University of Michigan-Ann Arbor
  • Duke University
  • University of Georgia
  • Cary Institute of Ecosystem Studies
  • United States Department of Agriculture