4 Works

Data from: Selection on Polemonium brandegeei (Polemoniaceae) flowers under hummingbird pollination: in opposition, parallel, or independent of selection by hawkmoths?

Mason W. Kulbaba & Anne C. Worley
Particular floral phenotypes are often associated with specific groups of pollinators. However, flowering plants are often visited, and may be effectively pollinated by more than one type of animal. Therefore, a major outstanding question in floral biology asks: what is the nature of selection on floral traits when pollinators are diverse? This study examined how hummingbirds selected on the floral traits of Polemonium brandegeei, a species pollinated by both hummingbirds and hawkmoths. In array populations...

Data from: Catch the wave: prairie dogs assess neighbours' awareness using contagious displays

James F. Hare, Kevin L. Campbell & Robert W. Senkiw
The jump–yip display of black-tailed prairie dogs (Cynomys ludovicianus) is contagious, spreading through a prairie dog town as ‘the wave’ through a stadium. Because contagious communication in primates serves to assess conspecific social awareness, we investigated whether instigators of jump–yip bouts adjusted their behaviour relative to the response of conspecifics recruited to display bouts. Increased responsiveness of neighbouring town members resulted in bout initiators devoting a significantly greater proportion of time to active foraging. Contagious...

Data from: Accelerometry predicts daily energy expenditure in a bird with high activity levels

Kyle H. Elliott, Maryline LeVaillant, Akiko Kato, John Speakman, Yan Ropert-Coudert, M. Le Vaillant & J. R. Speakman
Animal ecology is shaped by energy costs, yet it is difficult to measure fine-scale energy expenditure in the wild. Because metabolism is often closely correlated with mechanical work, accelerometers have the potential to provide detailed information on energy expenditure of wild animals over fine temporal scales. Nonetheless, accelerometry needs to be validated on wild animals, especially across different locomotory modes. We merged data collected on 20 thick-billed murres (Uria lomvia) from miniature accelerometers with measurements...

Data from: High flight costs, but low dive costs, in auks support the biomechanical hypothesis for flightlessness in penguins

Kyle H. Elliott, Robert E. Ricklefs, Anthony J. Gaston, Scott A. Hatch, John R. Speakman & Gail K. Davoren
Flight is a key adaptive trait. Despite its advantages, flight has been lost in several groups of birds, notably among seabirds, where flightlessness has evolved independently in at least five lineages. One hypothesis for the loss of flight among seabirds is that animals moving between different media face tradeoffs between maximizing function in one medium relative to the other. In particular, biomechanical models of energy costs during flying and diving suggest that a wing designed...

Registration Year

  • 2013
    4

Resource Types

  • Dataset
    4

Affiliations

  • University of Manitoba
    4
  • University of Aberdeen
    2
  • Hubert Curien Multi-disciplinary Institute
    1
  • French National Centre for Scientific Research
    1
  • Carleton University
    1
  • University of Missouri
    1