5 Works

An early dog from Southeast Alaska supports a coastal route for the first dog migration into the Americas

Flavio Augusto Da Silva Coelho, Stephanie Gill, Crystal Tomlin, Timothy Heaton & Charlotte Lindqvist
The oldest confirmed remains of domestic dogs in North America are from mid-continent archeological sites dated ~9,900 calibrated years before present (cal BP). Although this date suggests that dogs may not have arrived alongside the first Native Americans, the timing and routes for the entrance of New World dogs are unclear. Here, we present a complete mitochondrial genome of a dog from Southeast Alaska, dated to 10,150 ± 260 cal BP. We compared this high-coverage...

Intracranial aneurysm risk scores, hemodynamics and vessel wall enhancement values

Sricharan Veeturi
Vessel wall enhancement (VWE) in contrast-enhanced magnetic resonance imaging (MRI) is a potential biomarker for intracranial aneurysm (IA) risk stratification. In this study, we investigated the relationship between VWE features, risk metrics, morphology, and hemodynamics in 41 unruptured aneurysms. We reconstructed the IA geometries from MR angiography and mapped pituitary stalk-normalized MRI intensity on the aneurysm surface using an in-house tool. For each case, we calculated the maximum intensity (CRstalk) and IA risk (via size...

Biodiversity across the Greater Cape Floristic Region

Henry Frye, Matthew Aiello-Lammens, Doug Euston-Brown, Cynthia Jones, Hayley Kilroy Mollmann, Merow Cory, Jasper Slingsby, Helga Van Der Merwe, Adam Wilson & John Silander
Aim: With plant biodiversity under global threat, there is an urgent need to monitor the spatial distribution of multiple axes of biodiversity. Remote sensing is a critical tool in this endeavor. One remote sensing approach in detecting biodiversity is based on the hypothesis that the spectral diversity of plant communities is a surrogate of multiple dimensions of biodiversity. We investigated the generality of this “surrogacy” for spectral, species, functional, and phylogenetic diversity across 1,267 plots...

Ericoid mycorrhizal shrubs alter the relationship between tree mycorrhizal dominance and soil carbon and nitrogen

Elisabeth Ward, Marlyse Duguid, Sara Kuebbing, James Lendemer, & Mark Bradford
1. Plant-fungal associations strongly influence forest carbon and nitrogen cycling. The prevailing framework for understanding these relationships is through the relative abundance of arbuscular (AM) versus ectomycorrhizal (EcM) trees. Ericoid mycorrhizal (ErM) shrubs are also common in forests and interactions between co-occurring ErM shrubs and AM and EcM trees could shift soil biogeochemical responses. Here we test hypotheses that the effects of ErM shrubs on soil carbon and nitrogen either extend or are redundant with...

Dataset: Inverse responses of species richness and niche specialization to human development

Martin Jeanmougin, Cari D. Ficken, Jan J.H. Ciborowski & Rebecca C. Rooney
Humans impact biodiversity by altering land use and introducing nonnative species. Yet the extent to which coexistence processes, such as competition and niche shifts, mediate these relationships is not clear. This dataset was used in a study that aims to compare how human development influences wetland plant diversity by examining patterns of species richness, niche specialization, and nonnative species occurrences along a human development gradient. This dataset can be used to analyzed species richness and...

Registration Year

  • 2021
    5

Resource Types

  • Dataset
    5

Affiliations

  • University at Buffalo, State University of New York
    5
  • University of South Dakota
    1
  • University of Waterloo
    1
  • University of Pittsburgh
    1
  • University of Connecticut
    1
  • New York Botanical Garden
    1
  • Yale University
    1
  • Laboratoire d'Écologie Alpine
    1
  • University of Calgary
    1
  • South African Environmental Observation Network
    1