3 Works

Data from: Evolutionary relationships among bullhead sharks (Chondrichthyes: Heterodontiformes)

Tiffany S. Slater, Kate Ashbrook & Jürgen Kriwet
The evolution of modern sharks, skates and rays (Elasmobranchii) is largely enigmatic due to their possession of a labile cartilaginous skeleton; consequently, taxonomic assignment often depends on isolated teeth. Bullhead sharks (Heterodontiformes) are a group of basal neoselachians, thus their remains and relationships are integral to understanding elasmobranch evolution. Here we fully describe †Paracestracion danieli – a bullhead shark from the Late Jurassic plattenkalks of Eichstätt, Germany (150–154 Ma) – for its inclusion in cladistic...

Reliably predicting pollinator abundance: challenges of calibrating process-based ecological models

Emma Gardner, Tom Breeze, Yann Clough, Henrik Smith, Katherine Baldock, Alistair Campbell, Michael Garratt, Mark Gillespie, William Kunin, Megan McKerchar, Jane Memmott, Simon Potts, Deepa Senapathi, Graham Stone, Felix Wäckers, Duncan Westbury, Andrew Wilby & Thomas Oliver
1. Pollination is a key ecosystem service for global agriculture but evidence of pollinator population declines is growing. Reliable spatial modelling of pollinator abundance is essential if we are to identify areas at risk of pollination service deficit and effectively target resources to support pollinator populations. Many models exist which predict pollinator abundance but few have been calibrated against observational data from multiple habitats to ensure their predictions are accurate. 2. We selected the most...

The effectiveness of flower strips and hedgerows on pest control, pollination services and crop yield: a quantitative synthesis

Matthias Albrecht, David Kleijn, Neal Williams, Matthias Tschumi, Brett Blaauw, Riccardo Bommarco, Alistair Campbell, Matteo Dainese, Frank Drummond, Martin Entling, Dominik Ganser, Arjen De Groot, David Goulson, Heather Grab, Hannah Hamilton, Felix Herzog, Rufus Isaacs, Katja Jacot, Philippe Jeanneret, Mattias Jonsson, Eva Knop, Claire Kremen, Doug Landis, Greg Loeb, Lorenzo Marini … & Louis Sutter
Floral plantings are promoted to foster ecological intensification of agriculture through provisioning of ecosystem services. However, a comprehensive assessment of the effectiveness of different floral plantings, their characteristics and consequences for crop yield is lacking. Here we quantified the impacts of flower strips and hedgerows on pest control (18 studies) and pollination services (17 studies) in adjacent crops in North America, Europe and New Zealand. Flower strips, but not hedgerows, enhanced pest control services in...

Registration Year

  • 2020
    3

Resource Types

  • Dataset
    3

Affiliations

  • University of Worcester
    3
  • Lund University
    2
  • Lancaster University
    2
  • University of Reading
    2
  • University of Sussex
    1
  • Estonian University of Life Sciences
    1
  • University of Georgia
    1
  • University of Maine
    1
  • University of California, Berkeley
    1
  • University of Koblenz and Landau
    1