Now showing items 39-48 of 48

    • Signalling Among Relatives. I. When is signalling too costly? 

      Bergstrom, Carl T.; Lachmann, Michael (The Royal Society, 1997)
      Zahavi's handicap principle, originally proposed as an explanation for sexual selection of elaborate male traits (Zahavi, 1975) suggests that signalling can be honest if less desirable signallers must pay a higher cost in ...
    • Signalling among relatives. II. Beyond the Tower of Babel. 

      Bergstrom, Carl T.; Lachmann, Michael (Academic Press INC Elsevier Science, 1998)
      Models of costly signalling are commonly employed in evolutionary biology in order to explain how honest communication between individuals with conflicting interests can be stable. These models have focused primarily on a ...
    • Signalling Among Relatives. III. Talk is cheap. 

      Bergstrom, Carl T.; Lachmann, Michael (National Academy of Sciences, 1998-04)
      The Sir Philip Sidney game has been used by numerous authors to show how signal cost can facilitate honest signaling among relatives. Here, we demonstrate that, in this game, honest cost-free signals are possible as well, ...
    • Supplemental oxygen and mountaineer death rates on Everest and K2 

      Huey, Raymond B.; Eguskitza, Xavier (American Medical Association, 2000-07-12)
      The use of supplemental oxygen by Himalayan mountaineers has been debated for more than 8 decades. Although sometimes viewed as unsporting, supplemental-oxygen use may improve survival rates by increasing performance and ...
    • Survey of Shell-boring Microorganisms Across a Depth Gradient at Point Caution, on San Juan Island, WA 

      Johnson, Jeff (2011)
      Although they are integral to many marine ecosystems, relatively little is known about euendolithic (shell-boring) organisms outside the tropics. Here, I present a short survey of euendoliths inhabiting a site on the ...
    • Temperature, Demography, and Ectotherm Fitness 

      Huey, Raymond B.; Berrigan, David (University of Chicago Press, 2001-08)
    • Toward a theory of mutual mate choice: Lessons from two-sided matching 

      Bergstrom, Carl T.; Real, Leslie A. (Evolutionary Ecology LTD, 2000)
      Theoretical models of mate choice and sexual selection typically make one of two simplifying assumptions. Either mate-preferences are assumed to be uniform (e.g., all females have the same preferences with respect to males), ...
    • Transmission bottlenecks as determinants of virulence in rapidly evolving pathogens 

      Bergstrom, Carl T.; McElhany, Paul; Real, Leslie A. (National Academy of the Sciences, 1999-04)
      Transmission bottlenecks occur in pathogen populations when only a few individual pathogens are transmitted from one infected host to another in the initiation of a new infection. Transmission bottlenecks can dramatically ...
    • WikiDust: a TinkerCell Plugin to Annotate and Share Network Models 

      Johnson, Jeffrey; Sauro, Herbert M.; Chandran, Deepak; Galdzicki, Michal (2011)
      We present WikiDust, a software tool that (a) facilitates searches for DNA components, and (b) produces annotated webready images for improved sharing of designs. WikiDust is a plugin for TinkerCell, a CAD design tool ...
    • Within-host population dynamics and the evolution of microparasites in a heterogeneous host population 

      Ganusov, Vitaly V.; Bergstrom, Carl T.; Antia, Rustom (Society for the Study of Evolution, 2002-02)
      Why do parasites harm their hosts? The general understanding is that if the transmission rate and virulence of a parasite are linked, then the parasite must harm its host in order to maximize its transmission. The exact ...