14 Works

Data from: Solitary ecology as a phenomenon extending beyond insular systems: exaptive evolution in Anolis lizards

Julián A. Velasco, Steven Poe, Constantino González-Salazar & Oscar Flores-Villela
The mechanisms driving phenotypic evolution have been of interest to biologists since Darwin. Ecological release—wherein adaptive evolution occurs following relaxation of constraining selective pressures—and environmental filtering—wherein exaptive traits allow colonization of a new area—have been studied in several insular cases. Anolis lizards, which may exist in solitude or sympatry with multiple congeners, are an excellent system for evaluating whether ecological release and environmental filtering are associated with phenotypic shifts across phylogenetic and geographical scales. Insular...

Data from: Trophic plasticity in a common reef-building coral: Insights from δ13C analysis of essential amino acids

Michael Fox, Emma Elliott Smith, Jennifer Smith & Seth Newsome
1. Reef-building corals are mixotrophic organisms that can obtain nutrition from endosymbiotic microalgae (autotrophy) and particle capture (heterotrophy). Heterotrophic nutrition is highly beneficial to many corals, particularly in times of stress. Yet the extent to which different coral species rely on heterotrophic nutrition remains largely unknown because it is challenging to quantify. 2. We developed a quantitative approach to investigate coral nutrition using carbon isotope (δ13C) analysis of six essential amino acids (AAESS) in a...

Principles of Stable Isotope Geochemistry, 2nd Edition

Zachary Sharp
Principles of Stable Isotope Geochemistry is written as a textbook to accompany a one semester course in Stable Isotope Geochemistry. There are 13 chapters, each dealing with a specific subtopic of the field. Other than Chapters 1 and 2 – introduction and definitions – most of the remaining chapters can be read without reliance on the preceding ones. It is also hoped that the book will serve as a general reference volume for researchers in...

Data from: Earth history and the passerine superradiation

Carl H. Oliveros, Daniel J. Field, Daniel T. Ksepka, F. Keith Barker, Alexandre Aleixo, Michael J. Andersen, Per Alström, Brett W. Benz, Edward L. Braun, Michael J. Braun, Gustavo A. Bravo, Robb T. Brumfield, R. Terry Chesser, Santiago Claramunt, Joel Cracraft, Andrés M. Cuervo, Elizabeth P. Derryberry, Travis C. Glenn, Michael G. Harvey, Peter A. Hosner, Leo Joseph, Rebecca T. Kimball, Andrew L. Mack, Colin M. Miskelly, A. Townsend Peterson … & Brant C. Faircloth
Avian diversification has been influenced by global climate change, plate tectonic movements, and mass extinction events. However, the impact of these factors on the diversification of the hyperdiverse perching birds (passerines) is unclear because family level relationships are unresolved and the timing of splitting events among lineages is uncertain. We analyzed DNA data from 4,060 nuclear loci and 137 passerine families using concatenation and coalescent approaches to infer a comprehensive phylogenetic hypothesis that clarifies relationships...

Data from: Using historical biogeography models to study color pattern evolution

Chad Eliason, Michael Andersen & Shannon Hackett
Color is among the most striking features of organisms, varying not only in spectral properties like hue and brightness, but also in where and how it is produced on the body. Different combinations of colors on a bird’s body are important in both environmental and social contexts. Previous comparative studies have treated plumage patches individually or derived plumage complexity scores from color measurements across a bird’s body. However, these approaches do not consider the multivariate...

Heat dissipation behaviour of birds in seasonally hot, arid-zones: are there global patterns?

Nicholas Pattinson, Michelle Thompson, Michael Griego, Grace Russell, Nicola Mitchell, Rowan Martin, Blair Wolf, Ben Smit, Susan Cunningham & Andrew McKechnie
Quantifying organismal sensitivity to heat stress provides one means for predicting vulnerability to climate change. Birds are ideal for investigating this approach, as they display quantifiable fitness consequences associated with behavioural and physiological responses to heat stress. We used a recently developed method that examines correlations between readily-observable behaviours and air temperature (Tair) to investigate interspecific variation in avian responses to heat stress in seasonally hot, arid regions on three continents: the southwestern United States,...

Data from: Parallel molecular evolution in pathways, genes, and sites in high-elevation hummingbirds revealed by comparative transcriptomics

Marisa C.W. Lim, Christopher C. Witt, Catherine H. Graham & Liliana M. Davalos
High-elevation organisms experience shared environmental challenges that include low oxygen availability, cold temperatures, and intense UV radiation. Consequently, repeated evolution of the same genetic mechanisms may occur across high-elevation taxa. To test this prediction, we investigated the extent to which the same biochemical pathways, genes, or sites were subject to parallel molecular evolution for 12 Andean hummingbird species (family: Trochilidae) representing several independent transitions to high elevation across the phylogeny. Across high-elevation species, we discovered...

Data from: An analysis of the impacts of Cretaceous Oceanic Anoxic Events on global molluscan diversity dynamics

Nicholas A. Freymueller, Jason R. Moore & Corinne E. Myers
Oceanic Anoxic Events (OAEs) are contemporaneous with 11 of the 18 largest Phanerozoic extinction events, but the magnitude and selectivity of their paleoecological impact remains disputed. OAEs are associated with abrupt, rapid warming and increased CO2 flux to the atmosphere, thus insights from this study may clarify the impact of current anthropogenic climate change on the biosphere. We investigated the influence of the Late Cretaceous Bonarelli Event (OAE2; Cenomanian – Turonian stage boundary; ~ 94...

RAMP data subset, January 1 through May 31, 2019

Jonathan Wheeler, Kenning Arlitsch, Minh Pham, Nikolaus Parulian, Patrick OBrien & Jeff Mixter
The data are a subset of data from RAMP, the Repository Analytics and Metrics Portal (http://ramp.montana.edu/), consisting of data from 35 (out of 50) participating institutional repositories (IR) from the period of January 1 through May 31, 2019. This subset represents data analyzed for a pending publication. For a description of the data collection, processing, and output methods, please see the "methods" section below. The 'RAMP Primer,' a Jupyter Notebook consisting of Python code for...

Ecohydrology of urban trees under passive and active irrigation in a semiarid city

Anthony Luketich
The infiltration of stormwater runoff for use by urban trees is a major co-benefit of green infrastructure for desert cities with limited water resources. However, the effects of this passive irrigation versus regular, controlled moisture inputs, or active irrigation, is largely unquantified. We monitored the ecohydrology of urban mesquite trees (Prosopis spp.) under these contrasting irrigation regimes in semiarid Tucson, AZ. Measurements included soil moisture, sap velocity, canopy greenness, and leaf-area index. We expected both...

(2019) Supplementary figures for \"Depicting Grand Canyon’s rock layers: 150 years of visualizing and interpreting geology\"

Karl Karlstrom & Laura Crossey
These color and supplementary figures accompany the following reference: Karlstrom, K. E., and Crossey, L. J., 2020, Depicting Grand Canyon’s Rock Layers: 150 years of Visualizing and Interpreting Geology: in, Quartaroli, Richard, editor, Celebrating 100 Years of Grand Canyon National Park: A Gathering of Grand Canyon Historians: Ideas, Arguments, and First-Person Accounts, Symposium Proceedings of the Grand Canyon Historical Society, (Grand Canyon, Ariz.: Grand Canyon Conservancy, 2020, v. 5, chapter 31, pp. xx –xx.

Data from: The 15-year post-treatment response of a mixed-conifer understory plant community to thinning and burning treatments

Matthew Hurteau, Marrissa Goodwin, Malcolm North, Harold Zald & Brandon Collins
Disturbance is central to maintaining diversity in forest ecosystems. In the dry forests of the western United States, over a century of fire exclusion has altered the fire regimes of these forests, resulting in high fuel loads and a loss of plant diversity. Mechanical thinning and prescribed fire are widely used to restore structural complexity and species diversity in many western U.S. forests. While studies have shown that the reintroduction of fire into these forests...

Data from: Propagule pressure and genetic diversity enhance colonization by a ruderal species: a multi-generation field experiment

Stephen M. Hovick & Kenneth D. Whitney
Colonization is a critical filter, setting the stage for short-term and long-term population success. Increased propagule pressure (e.g., more founding individuals) usually enhances colonization; however, this pattern may be driven by purely numeric effects, population genetic diversity effects, or both. To determine the independent and interactive effects of propagule pressure and genetic diversity, we conducted a seed addition experiment in the field using the ruderal annual Arabidopsis thaliana. Propagule pressure treatments spanned five levels, from...

Data from: Non-random latitudinal gradients in range size and niche breadth predicted by spatial patterns of climate

Erin E. Saupe, Corinne E. Myers, A. Townsend Peterson, Jorge Soberón, Joy Singarayer, Paul Valdes & Huijie Qiao
Aim. Tropical species are thought to experience and be adapted to narrow ranges of abiotic conditions. This idea has been invoked to explain a broad array of biological phenomena, including the latitudinal diversity gradient and differential rates of speciation and extinction. However, debate continues regarding the broad-scale applicability of this pattern and potential processes responsible. Here, we use a simulation approach to test two propositions: (1) strong geographic patterns of variation in realized niche breadth...

Registration Year

  • 2019
    14

Resource Types

  • Dataset
    13
  • Text
    1

Affiliations

  • University of New Mexico
    14
  • University of Kansas
    2
  • University of Bath
    1
  • University of Pretoria
    1
  • Field Museum of Natural History
    1
  • The Ohio State University
    1
  • University of Georgia
    1
  • Royal Ontario Museum
    1
  • Museu Paraense Emílio Goeldi
    1
  • Rhodes University
    1