Publications by authors named "Ken R Helms"

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Inclusive fitness theory and eusociality.
Patrick Abbot, Jun Abe, John Alcock, Samuel Alizon, Joao A C Alpedrinha, Ken R Helms

Nature· March 2011

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Distribution and abundance of parasites of the rhodesgrass mealybug, Antonina graminis: reassessment of a classic example of biological control in the Southeastern United States.
Jillian M Chantos, S Bradleigh Vinson, Ken R Helms

J Insect Sci· March 2010

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Plant resources and colony growth in an invasive ant: the importance of honeydew-producing Hemiptera in carbohydrate transfer across trophic levels.
Ken R Helms, S Bradleigh Vinson

Environ Entomol· April 2008

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Sex-ratio conflict between queens and workers in eusocial Hymenoptera: mechanisms, costs, and the evolution of split colony sex ratios.
Ken R Helms, Max Reuter, Laurent Keller

Evolution· December 2005

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Experimental manipulation of queen number affects colony sex ratio investment in the highly polygynous ant Formica exsecta.
Rolf Kümmerli, Ken R Helms, Laurent Keller

Proc Biol Sci· September 2005

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Effects of brood manipulation costs on optimal sex allocation in social hymenoptera.
Max Reuter, Ken R Helms, Laurent Lehmann, Laurent Keller

Am Nat· September 2004

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Colony sex ratios in the facultatively polygynous ant Pheidole pallidula: a reanalysis with new data.
Ken R Helms, Denis Fournier, Laurent Keller, Luc Passera, Serge Aron

Evolution· May 2004

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Temporal and spatial variations of gyne production in the ant Formica exsecta.
Cathy Liautard, William D Brown, Ken R Helms, Laurent Keller

Oecologia· August 2003

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COLONY SEX RATIOS, CONFLICT BETWEEN QUEENS AND WORKERS, AND APPARENT QUEEN CONTROL IN THE ANT PHEIDOLE DESERTORUM.
Ken R Helms

Evolution· October 1999

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