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Browsing Biology, Department of by Title

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  • Antia, Rustom; Bergstrom, Carl T.; Pilyugin, Sergei S.; Kaech, Susan M.; Ahmed, Rafi (Elsevier Science, 2003)
    Recent experimental results show that even brief stimulation with antigen can cause antigenspecic CD8 T-cells to undergo sustained proliferation followed by differentiation into memory cells. These results show that the ...
  • Haig, David; Bergstrom, Carl T. (Blackwell Publishing LTD, 1995)
    Most discussions of "sperm competition" have ignored the potential for competition among the different sperm genotypes present in the ejaculate of a single male. Rivalry within ejaculates may limit cooperation among the ...
  • Bergstrom, Carl T.; Lipsitch, Marc; Levin, Bruce R. (Genetics, 2000-08)
    Despite the near-ubiquity of plasmids in bacterial populations and the profound contribution of plasmid-borne genes and infectious gene transfer to the adaptation and evolution of bacteria, the mechanisms responsible for ...
  • Bergstrom, Carl T.; Antia, Rustom (Indian Academy of Sciences, 2005)
  • Huey, Raymond B.; Carlson, Margen; Crozier, Lisa; Frazier, Melanie; Hamilton, Hayden; Harley, Christopher; Hoang, Anhthu; Kingsolver, Joel G. (Society of Integrative and Comparative Biology, 2002)
    Both plants and animals respond to stress by using adaptations that help them evade, tolerate, or recover from stress. In a synthetic paper A. D. Bradshaw (1972) noted that basic biological differences between plants and ...
  • Genereux, Diane P.; Miner, Brooks E.; Bergstrom, Carl T.; Laird, Charles D. (National Academy of Sciences USA, 2005)
    Cytosine methylation is an epigenetic mechanism in eukaryotes that is often associated with stable transcriptional silencing, such as in X-chromosome inactivation and genomic imprinting. Aberrant methylation patterns occur ...
  • Bergstrom, Carl T.; Godfrey-Smith, Peter (Kluwer Academic Publishers, 1998)
    A wide range of ecological and evolutionary models predict variety in phenotype or behavior when a population is at equilibrium. This heterogeneity can be realized in different ways. For example, it can be realized through ...
  • Lipsitch, Marc; Bergstrom, Carl T. (American Journal of Epidemiology, 2004)
    Health officials faced a daunting task with the emergence of severe acute respiratory syndrome (SARS) last year: forecasting the trajectory of an emerging infectious disease and implementing effective control measures, ...
  • Bergstrom, Carl T.; Lachmann, Michael (MIT Press, 2003)
    Mutualisms generate surpluses. While much of the theoretical literature to date focuses on mechanisms by which cooperation is stabilized so that these surpluses can continue to be produced and enjoyed, we address a second ...
  • Bergstrom, Carl T.; Lachmann, Michael (National Academy of Sciences USA, 2003-01-21)
    Mutualisms provide benefits to those who participate in them. As a mutualism evolves, how will these benefits come to be allocated among the participants? We approach this question using evolutionary game theory and explore ...
  • Robson, Arthur J.; Bergstrom, Carl T.; Pritchard, Jonathan K. (Academic Press LTD Elsevier Scientific LTD, 1999)
    Patterns of reproductive uncertainty can have an important influence on population dynamics. There is a crucial distinction between what we describe here as aggregate uncertainty (in which reproductive output in each ...
  • Antia, Rustom; Regoes, Roland R.; Koella, Jacob C.; Bergstrom, Carl T. (Nature, 2003)
    It is unclear when, where and how novel pathogens such as human immunodeficiency virus (HIV), monkeypox and severe acute respiratory syndrome (SARS) will cross the barriers that separate their natural reservoirs from human ...
  • Bergstrom, Carl T.; Szamado, Szabolcs; Lachmann, Michael (The Royal Society of London, 2002-10-24)
    Much of the theoretical literature on costly signalling concentrates on the separating equilibria of continuous signalling games. At such equilibria, every signaller sends a distinct signal, and signal receivers are able ...
  • 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 ...
  • 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 ...
  • 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, ...
  • 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 ...
  • 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 ...
  • Huey, Raymond B.; Berrigan, David (University of Chicago Press, 2001-08)
  • 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), ...

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