15 Works

Water availability dictates how plant traits predict demographic rates

Alice Stears, Peter Adler, Dana Blumenthal, Julie Kray, Kevin Mueller, Troy Ocheltree, Kevin Wilcox & Daniel Laughlin
A major goal in ecology is to make generalizable predictions of organism responses to environmental variation based on their traits. However, straightforward relationships between traits and fitness are rare and likely vary with environmental context. Characterizing how traits mediate demographic responses to the environment may enhance predictions of organism responses to global change. We synthesized 15 years of demographic data and species-level traits in a shortgrass steppe to determine whether the effects of leaf and...

Modeling management strategies for chronic disease in wildlife: predictions for the control of respiratory disease in bighorn sheep

Kezia Manlove, Emily Almberg, E. Frances Cassirer, Jennifer Ramsey, Keri Carson, Justin Gude & Raina Plowright
1. Controlling persistent infectious disease in wildlife populations is an on-going challenge for wildlife managers and conservationists worldwide. 2. Here, we develop a dynamic pathogen transmission model capturing key features of M. ovipneumoniae infection, a major cause of population declines in North American bighorn sheep (Ovis canadensis). We explore the effects of model assumptions and parameter values on disease dynamics, including density versus frequency dependent transmission, the inclusion of a carrier class versus a longer...

Tipping the balance: the role of seed density, abiotic filters, and priority effects in seed-based wetland restoration

Emily Tarsa, Bailey Holdaway & Karin Kettenring
Sowing native seeds is a common approach to reintroduce native plants to degraded systems. However, this method is often overlooked in wetland restoration despite the immense global loss of diverse native wetland vegetation. Developing guiding principles for seed-based wetland restoration is critical to maximize native plant recovery, particularly in previously invaded wetlands. Doing so requires a comprehensive understanding of how restoration manipulations, and their interactions, influence wetland plant community assembly. With a focus on the...

Chemical defense strategies, induction timing, growth, and tradeoffs in Pinus aristata and Pinus flexilis

David Soderberg
Tradeoffs among plant defense investment and fitness traits, including growth, are often invoked to explain evolutionary strategies targeted at resisting herbivores. Many Pinus species have specialized herbivores, including the mountain pine beetle, Dendroctonus ponderosae, (MPB), and have historically been a focus of defense investigations. We compared defense traits of two high-elevation Pinus species, P. aristata and P. flexilis, that are hosts to MPB and hypothesized to have different growth and defense traits and potential tradeoffs....

Washington Dairy Survey 2020

Jennifer Givens & Michael D. Briscoe

Data for Dancing

Joseph D. Birch, James Lutz & Justine Karst

Data from: Population genomic evidence of selection on structural variants in a natural hybrid zone

Zachariah Gompert, Linyi Zhang, Samridhi Chaturvedi, Chris Nice & Lauren Lucas
Structural variants (SVs) can promote speciation by directly causing reproductive isolation or by suppressing recombination across large genomic regions. Whereas examples of each mechanism have been documented, systematic tests of the role of SVs in speciation are lacking. Here, we take advantage of long-read (Oxford nanopore) whole-genome sequencing and a hybrid zone between two Lycaeides butterfly taxa (L. melissa and Jackson Hole Lycaeides) to comprehensively evaluate genome-wide patterns of introgression for SVs and relate these...

Plant-soil Feedbacks Help Explain Plant Community Productivity

Andrew Kulmatiski, Jeanette Norton, Leslie Forero & Josephine Grenzer

Scale-dependent species-area relationship: niche-based versus stochastic processes in a typical subtropical forest

Haibao Ren, Jens-Christian Svenning, Xiangcheng Mi, James A. Lutz, Jinxing Zhou & Keping Ma
Determining the patterns and drivers of the small-scale species-area relationship (SAR) is crucial for improving our understanding of community assembly and biodiversity patterns. Niche-based and stochastic processes are two principal categories of mechanisms potentially driving SARs. However, their relative importance has rarely been quantified rigorously owing to scale-dependence and the simplified niche volumes often used. In a fully mapped, 24-ha plot of a typical subtropical forest, we built the SARs and well-defined niche-hyper-volumes of a...

Pando Aspen 2021 Remeasure

Paul C. Rogers

Data from: Bighorn sheep show similar in-host responses to the same pathogen strain in two contrasting environments

Kezia Manlove, Annette Roug, Kent Hersey, Cameron Martinez, Michael Martinez, Kerry Mower, Talisa Ortega, Eric Rominger, Caitlin Ruhl, Nicole Tatman & Jace Taylor
Ecological context – the biotic and abiotic environment, along with its influence on population mixing dynamics and individual susceptibility – are thought to have major bearing on epidemic outcomes. However, direct comparisons of disease events in contrasting ecological contexts in wildlife systems are often confounded by concurrent differences in host genetics, exposure histories, or pathogen strains. Here, we compare disease dynamics of a Mycoplasma ovipneumoniae spillover event that affected bighorn sheep populations in two contrasting...

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