3 Works

Data from: Gain-of-function experiments in bacteriophage lambda uncover residues under diversifying selection in nature

Rohan Maddamsetti, Daniel T. Johnson, Stephanie J. Spielman, Katherine L. Petrie, Debora S. Marks & Justin R. Meyer
Viral gain-of-function mutations frequently evolve during laboratory experiments. Whether the specific mutations that evolve in the lab also evolve in nature and whether they have the same impact on evolution in the real world is unknown. We studied a model virus, bacteriophage λ, that repeatedly evolves to exploit a new host receptor under typical laboratory conditions. Here we demonstrate that two residues of λ’s J protein are required for the new function. In natural λ...

Data from: Causes of seasonal decline in reproduction of the cooperatively-breeding acorn woodpecker

Walter D. Koenig & Eric L. Walters
Clutch size and reproductive success decline seasonally in a wide range of temperate avian taxa. Two competing hypotheses have been proposed to explain such declines: the “timing” hypothesis, which states that conditions affecting reproduction decline intrinsically with date, and the “quality” hypothesis, which proposes that high-quality individuals or individuals in high-quality situations breed earlier. We contrasted the relative importance of these two hypotheses using a long-term dataset of the cooperatively-breeding acorn woodpecker (Melanerpes formicivorus) in...

Data from: Wild acorn woodpeckers recognize associations between individuals in other groups

Michael A. Pardo, Emilee A. Sparks, Tejal S. Kuray, Natasha D. Hagemeyer, Eric L. Walters & Walter D. Koenig
According to the social intelligence hypothesis, understanding the cognitive demands of the social environment is key to understanding the evolution of intelligence. Many important socio-cognitive abilities, however, have primarily been studied in a narrow subset of the social environment—within-group social interactions—despite the fact that between-group social interactions often have a substantial effect on fitness. In particular, triadic awareness (knowledge about the relationships and associations between others) is critical for navigating many types of complex social...

Registration Year

  • 2018

Resource Types

  • Dataset


  • Old Dominion University
  • Cornell University
  • University of California, San Diego
  • Rowan University