30 Works

Data from: Genome-wide assessment of diversity and divergence among extant Galápagos giant tortoise species

Joshua M. Miller, Maud C. Quinzin, Danielle L. Edwards, Deren A.R. Eaton, Evelyn L. Jensen, Michael A. Russello, James P. Gibbs, Washington Tapia, Danny Rueda, Adalgisa Caccone & Deren A R Eaton
Genome-wide assessments allow for fuller characterization of genetic diversity, finer-scale population delineation, and better detection of demographically significant units to guide conservation compared to those based on “traditional” markers. Galapagos giant tortoises (Chelonoidis spp.) have long provided a case study for how evolutionary genetics may be applied to advance species conservation. Ongoing efforts to bolster tortoise populations, which have declined by 90%, have been informed by analyses of mitochondrial DNA sequence and microsatellite genotypic data,...

Data from: Ion microprobe measured stable isotope evidence for ammonite habitat and life mode during early ontogeny

Benjamin J. Linzmeier, Neil H. Landman, Shanan E. Peters, Reinhard Kozdon, Kouki Kitajima & John W. Valley
Ammonites have disparate adult morphologies indicative of diverse ecological niches, but ammonite hatchlings are small (~1 mm diameter), which raises questions about the similarity of egg incubation and hatchling life mode in ammonites. Modern Nautilus is sometimes used as a model organism for understanding ammonites, but despite their outward similarities, the groups are only distantly related. Trends in ammonite diversity and extinction vulnerability in the fossil record contrast starkly with those of nautilids, and embryonic...

Data from: Comparative dynamics of microglialand glioma cell motility at the infiltrative margin of brain tumours

Joseph Juliano, Orlando Gil, Andrea Hawkins-Daarud, Sonal Noticewala, Russell C. Rockne, Jill Gallaher, Susan C. Massey, Peter A. Sims, Alexander R. A. Anderson, Kristin R. Swanson & Peter Canoll
Microglia are a major cellular component of gliomas, and abundant in the centre of the tumour and at the infiltrative margins. While glioma is a notoriously infiltrative disease, the dynamics of microglia and glioma migratory patterns have not been well characterized. To investigate the migratory behaviour of microglia and glioma cells at the infiltrative edge, we performed two-colour time-lapse fluorescence microscopy of brain slices generated from a platelet-derived growth factor-B (PDGFB)-driven rat model of glioma,...

Data from: Legume abundance along successional and rainfall gradients in neotropical forests

Maga Gei, Danaë M. A. Rozendaal, Lourens Poorter, Frans Bongers, Janet I. Sprent, Mira D. Garner, T. Mitchell Aide, José Luis Andrade, Patricia Balvanera, Justin M. Becknell, Pedro H.S. Brancalion, George A. L. Cabral, Ricardo Gomes César, Robin L. Chazdon, Rebecca J. Cole, Gabriel Dalla Colletta, Ben De Jong, Julie S. Denslow, Daisy H. Dent, Saara J. DeWalt, Juan Manuel Dupuy, Sandra M. Durán, Mário Marcos Do Espírito Santo, G. Wilson Fernandes, Yule Roberta Ferreira Nunes … & Jennifer S. Powers
The nutrient demands of regrowing tropical forests are partly satisfied by nitrogen (N)-fixing legume trees, but our understanding of the abundance of those species is biased towards wet tropical regions. Here we show how the abundance of Leguminosae is affected by both recovery from disturbance and large-scale rainfall gradients through a synthesis of forest-inventory plots from a network of 42 Neotropical forest chronosequences. During the first three decades of natural forest regeneration, legume basal area...

Data from: Sexual signal loss: the link between behavior and rapid evolutionary dynamics in a field cricket

Marlene Zuk, Nathan W. Bailey, Brian Gray & John T. Rotenberry
1. Sexual signals may be acquired or lost over evolutionary time, and are tempered in their exaggeration by natural selection. 2. In the Pacific field cricket, Teleogryllus oceanicus, a mutation (“flatwing”) causing loss of the sexual signal, the song, spread in < 20 generations in two of three Hawaiian islands where the crickets have been introduced. Flatwing (as well as some normal-wing) males behave as satellites, moving towards and settling near calling males to intercept...

Registration Year

  • 2018
    30

Resource Types

  • Dataset
    30

Affiliations

  • Columbia University
    30
  • University of California, Berkeley
    3
  • Northwestern University
    2
  • Massachusetts General Hospital
    2
  • Howard Hughes Medical Institute
    2
  • City Of Hope National Medical Center
    2
  • University of Alberta
    2
  • University of Minnesota
    2
  • New York University
    2
  • Aarhus University
    2