8 Works

Data from: Environmental gradients and the evolution of successional habitat specialization: a test case with 14 Neotropical forest sites

Susan G. Letcher, Jesse R. Lasky, Robin L. Chazdon, Natalia Norden, S. Joseph Wright, Jorge A. Meave, Eduardo A. Pérez-García, Rodrigo Muñoz, Eunice Romero-Pérez, Ana Andrade, José Luis Andrade, Patricia Balvanera, Justin M. Becknell, Tony V. Bentos, Radika Bhaskar, Frans Bongers, Vanessa Boukili, Pedro H. S. Brancalion, Ricardo G. César, Deborah A. Clark, David B. Clark, Dylan Craven, Alexander DeFrancesco, Juan M. Dupuy, Bryan Finegan … & G. Bruce Williamson
1. Successional gradients are ubiquitous in nature, yet few studies have systematically examined the evolutionary origins of taxa that specialize at different successional stages. Here we quantify successional habitat specialization in Neotropical forest trees and evaluate its evolutionary lability along a precipitation gradient. Theoretically, successional habitat specialization should be more evolutionarily conserved in wet forests than in dry forests due to more extreme microenvironmental differentiation between early and late successional stages in wet forest. 2....

Data from: Co-feeding intra- and interspecific transmission of an emerging insect-borne rickettsial pathogen

Lisa D. Brown, Rebecca C. Christofferson, Kaikhushroo H. Banajee, Fabio Del Piero, Lane D. Foil & Kevin R. Macaluso
Cat fleas (Ctenocephalides felis) are known as the primary vector and reservoir of Rickettsia felis, the causative agent of flea-borne spotted fever; however, field surveys regularly report molecular detection of this infectious agent from other blood-feeding arthropods. The presence of R. felis in additional arthropods may be the result of chance consumption of an infectious bloodmeal, but isolation of viable rickettsiae circulating in the blood of suspected vertebrate reservoirs has not been demonstrated. Successful transmission...

Data from: Sizing ocean giants: patterns of intraspecific size variation in marine megafauna

Craig R. McClain, Meghan A. Balk, Mark C. Benfield, Trevor A. Branch, Catherine Chen, James Cosgrove, Alistair D. M. Dove, Leo C. Gaskins, Rebecca Helm, Frederick G. Hochberg, Frank B. Lee, Andrea Marshall, Steven E. McMurray, Caroline Schanche, Shane N. Stone, Andrew D. Thaler & Rebecca R. Helm
What are the greatest sizes that the largest marine megafauna obtain? This is a simple question with a difficult and complex answer. Many of the largest-sized species occur in the world’s oceans. For many of these, rarity, remoteness, and quite simply the logistics of measuring these giants has made obtaining accurate size measurements difficult. Inaccurate reports of maximum sizes run rampant through the scientific literature and popular media. Moreover, how intraspecific variation in the body...

Data from: Quantifying demographic uncertainty: Bayesian methods for integral projection models (IPMs)

Bret D. Elderd & Tom E. X. Miller
Integral projection models (IPMs) are a powerful and popular approach to modeling population dynamics. Generalized linear models form the statistical backbone of an IPM. These models are typically fit using a frequentist approach. We suggest that hierarchical Bayesian statistical approaches offer important advantages over frequentist methods for building and interpreting IPMs, especially given the hierarchical nature of most demographic studies. Using a stochastic IPM for a desert cactus based on a 10-year study as a...

Data from: Contrasting effects of nutrient enrichment on below-ground biomass in coastal wetlands

Sean A. Graham & Irving A. Mendelssohn
Anthropogenically-enhanced nutrient availability is often cited among the most important drivers of altered ecosystem function and loss of services worldwide. Although the above-ground consequences of nutrient enrichment on plant growth patterns are numerous and well-documented, below-ground impacts are less clear but nonetheless critical from a global change perspective. In coastal wetlands, for example, plant-soil-nutrient dynamics directly affect the capacity to sequester carbon as soil organic matter, keep pace with sea level rise, and resist storm-induced...

Data from: Sequence capture of ultraconserved elements from bird museum specimens

John E. McCormack, Whitney L. E. Tsai, Brant C. Faircloth & Whitney L.E. Tsai
New DNA sequencing technologies are allowing researchers to explore the genomes of the millions of natural history specimens collected prior to the molecular era. Yet, we know little about how well specific next-generation sequencing (NGS) techniques work with the degraded DNA typically extracted from museum specimens. Here, we use one type of NGS approach, sequence capture of ultraconserved elements (UCEs), to collect data from bird museum specimens as old as 120 years. We targeted 5060...

Data from: Deflating trees: improving Bayesian branch-length estimates using informed priors

Bradley J. Nelson, John J. Andersen & Jeremy M. Brown
Prior distributions can have a strong effect on the results of Bayesian analyses. However, no general consensus exists for how priors should be set in all circumstances. Branch-length priors are of particular interest for phylogenetics, because they affect many parameters and biologically relevant inferences have been shown to be sensitive to the chosen prior distribution. Here, we explore the use of outside information to set informed branch-length priors and compare inferences from these informed analyses...

Data from: Fuels and fires influence vegetation via above- and below-ground pathways in a high-diversity plant community

Paul R. Gagnon, Heather A. Passmore, Matthew Slocum, Jonathan A. Myers, Kyle E. Harms, William J. Platt & C. E. Timothy Paine
1. Fire strongly influences plant populations and communities around the world, making it an important agent of plant evolution. Fire influences vegetation through multiple pathways, both above- and belowground. Few studies have yet attempted to tie these pathways together in a mechanistic way through soil heating even though the importance of soil heating for plants in fire-prone ecosystems is increasingly recognized. 2. Here we combine an experimental approach with structural equation modelling (SEM) to simultaneously...

Registration Year

  • 2015
    8

Resource Types

  • Dataset
    8

Affiliations

  • Louisiana State University of Alexandria
    8
  • Louisiana State University
    2
  • Brown University
    2
  • Museo de Historia Natural Noel Kempff Mercado
    1
  • Rice University
    1
  • University of Washington
    1
  • Columbia University
    1
  • Duke University
    1
  • Federal University of São Carlos
    1
  • Department of Plant Biology
    1