11 Works

Data from: Flow-ecology relationships are spatially structured and differ among flow regimes

Lindsey A. Bruckerhoff, Douglas R. Leasure & Daniel D. Magoulick
1. In streams, hydrology is a predominant driver of ecological structure and function. Providing adequate flows to support aquatic life, or environmental flows, is therefore a top management priority in stream systems. 2. Flow regime classification is a widely accepted approach for establishing environmental flow guidelines. However, it is surprisingly difficult to quantify relationships between hydrology and ecology (flow-ecology relationships) while describing how these relationships vary across classified flow regimes. Developing such relationships is complicated...

Data from: Selection past impacts the strength of an aquatic trophic cascade

Brittany H. Ousterhout, Savannah R. Graham, Adam Z. Hasik, Mabel Serrano & Adam M. Siepielski
1. In complex food webs, interactions among species in different trophic levels can generate cascading indirect effects that couple top predators with primary producers, thereby affecting ecosystem functioning. Natural selection imposed by top predators on intermediate predators may play a role in shaping the strength of these trophic cascades, but this conjecture remains largely untested. 2. To determine the effects of natural selection on the strength of trophic cascades we conducted a two-part experiment in...

Data from: Female mate preferences on high dimensional shape variation for male species recognition traits

Adam M. Siepielski, Sarah J. McPeek & Mark A. McPeek
Females in many animal species must discriminate between conspecific and heterospecific males when choosing mates. Such mating preferences that discriminate against heterospecifics may inadvertently also affect the mating success of conspecific males, particularly those with more extreme phenotypes. From this expectation, we hypothesized that female mate choice should cause Enallagma females (Odonata: Coenagrionidae) to discriminate against conspecific males with more extreme phenotypes of the claspers males use to grasp females while mating – the main...

Data from: Free‐moving artificial eggs containing temperature loggers reveal remarkable within‐clutch variance in incubation temperature

Sydney F. Hope, Sarah E. DuRant, John J. Hallagan, Michelle L. Beck, Robert A. Kennamer & William A. Hopkins
Incubation is a crucial aspect of avian parental care and measuring incubation temperature in the wild can improve our understanding of life history tradeoffs and inform conservation efforts. However, there are challenges associated with measuring the temperature of eggs in natural nests. Most studies to date have measured incubation temperature by using a single, stationary logger in each nest. However, real eggs are rotated and moved throughout the nest by the parent during the incubation...

Data from: Fine-scale spatial homogenization of microbial habitats: a multivariate index of headwater wetland complex condition

Jessica B. Moon, Denice H. Wardrop, Erica A.H. Smithwick, Kusum J. Naithani & Erica A. H. Smithwick
With growing public awareness that wetlands are important to society, there are intensifying efforts to understand the ecological condition of those wetlands that remain, and to develop indicators of wetland condition. Indicators based on soils are not well developed and are absent in some current assessment protocols; these could be advantageous, particularly for soils, which are complex habitats for plants, invertebrates, and microbial communities. In this study, we examine whether multivariate soil indicators, correlated with...

Data from: Validation of grain yield QTL from soft winter wheat using a CIMMYT spring wheat panel

Dennis N. Lozada, R. Esten Mason, Sivakumar Sukumaran & Susanne Dreisigacker
Validation of quantitative trait loci (QTLs) is an essential step in marker-assisted breeding. The objectives of this study were to validate grain yield (GY) QTLs previously identified in soft red winter wheat (Triticum aestivum L.) through biparental and association mapping using the spring wheat association mapping initiative (WAMI) panel from CIMMYT, Mexico, and to identify allele combinations of the validated QTLs that resulted to the highest GY. Linked single-nucleotide polymorphisms for IWA3560 (3A), IWA1818 (4B),...

Data from: Assessment of plasma proteomics biomarker’s ability to distinguish benign from malignant lung nodules

Gerard A. Silvestri, Nichole T. Tanner, Paul Kearney, Anil Vachani, Pierre P. Massion, Alexander Porter, Steven C. Springmeyer, Kenneth C. Fang, David Midthun, Peter J. Mazzone, D. Madtes, J. Landis, A. Levesque, K. Rothe, M. Balaan, B. Dimitt, B. Fortin, N. Ettinger, A. Pierre, L. Yarmus, K. Oakjones-Burgess, N. Desai, Z. Hammoud, A. Sorenson, R. Murali … & F. Allison
Background: Lung nodules are a diagnostic challenge, with an estimated yearly incidence of 1.6 million in the United States. This study evaluated the accuracy of an integrated proteomic classifier in identifying benign nodules in patients with a pretest probability of cancer (pCA) ≤ 50%. Methods: A prospective, multicenter observational trial of 685 patients with 8- to 30-mm lung nodules was conducted. Multiple reaction monitoring mass spectrometry was used to measure the relative abundance of two...

Data from: Unraveling historical introgression and resolving phylogenetic discord within Catostomus (Osteichthys: Catostomidae)

Max Russell Bangs, Marlis R Douglas, Steven M Mussmann & Michael E Douglas
Background: Porous species boundaries can be a source of conflicting hypotheses, particularly when coupled with variable data and/or methodological approaches. Their impacts can often be magnified when non-model organisms with complex histories of reticulation are investigated. One such example is the genus Catostomus (Osteichthys, Catostomidae), a freshwater fish clade with conflicting morphological and mitochondrial phylogenies. The former is hypothesized as reflecting the presence of admixed genotypes within morphologically distinct lineages, whereas the latter is interpreted...

Data from: Can we build it? Yes we can, but should we use it? Assessing the quality and value of a very large phylogeny of campanulid angiosperms

Jeremy M. Beaulieu & Brian C. O'Meara
The study of very large and very old clades holds the promise of greater insights into evolution across the tree of life. However, there has been a fair amount of criticism regarding the interpretations and quality of studies to date, with some suggesting that detailed studies carried out on smaller, tractable scales should be preferred over the increasingly grand syntheses of these data. Methods - We provided in detail our trials and tribulations of compiling...

Data from: Detrital nutrient content and leaf species differentially affect growth and nutritional regulation of detritivores

Halvor M. Halvorson, Chris L. Fuller, Sally A. Entrekin, J. Thad Scott & Michelle A. Evans-White
Resource nutrient content and identity are common bottom-up controls on organismal growth and nutritional regulation. One framework to study these factors, ecological stoichiometry theory, predicts that elevated resource nitrogen (N) and phosphorus (P) contents enhance organism growth by alleviating constraints on N and P acquisition. However, the regulatory mechanisms underlying this response – including whether responses depend on resource identity – remain poorly understood. In this study, we tested roles of detrital N and P...

Data from: Effects of conditionally expressed phenotypes and environment on amphibian dispersal in nature

Brittany H. Ousterhout & Raymond D. Semlitsch
Individuals vary greatly in the distance they disperse, and in doing so, strongly affect ecological and evolutionary processes. Dispersal, when viewed as a component of phenotype, can be affected independently or jointly by environment. However, among taxa with complex life cycles that occupy different habitats over ontogeny, the effects of environment on dispersal and the interaction between environment and phenotype remains poorly understood. Here, we conducted a field experiment to measure how dispersal distance was...

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