Publications by Boris Baer

Links to download papers are added if available, for reprints please write an E-mail to boris.baer[at]uwa.edu.au.

2011

Collins, J., Baer, B. & Weber, E.J. Economic growth and evolution: Parental preference for quality and quantity of offspring . University of Western Australia Discussion paper No. 11.05
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Fitzpatrick, J. L. & Baer, B. Polyandry reduces sperm length variation in social insects. Evolution, available online.
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King, M., Eubel, H., Millar, A.H. & Baer, B. Proteins within the seminal fluid are crucial to keep sperm viable in the honeybee Apis mellifera . J. Insect Physiol. 57: 409-414.
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Poland, V., Eubel, H., King, M., Solheim, C., Millar, A. H., & Baer, B. Stored sperm differs from ejaculated sperm by proteome alterations associated with energy metabolism in the honeybee Apis mellifera. Mol. Ecol. 20:2643-2654.
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Baer B. The copulation biology of ants (Hymenoptera: Formicidae). Myrmecol. News 14: 55-68.
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Sturup M., den Boer S. P. A., Nash D. R., Boomsma J. J., & Baer, B. Variation in male body size and reproductive allocation in the leafcutter ant Atta colombica: Estimating variance components and possible trade-offs. Insectes Soc. 58: 47-55.
View online at: Insectes Sociaux or Read abstract.

2010

den Boer S. P. A., Baer B. & Boomsma J. J. Seminal fluid mediates ejaculate competition in social insects. Science 327: 1506-1509.
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Armitage S.A.O., Boomsma J. J. & Baer B. Diploid male production in a leaf-cutting ant. Ecol. Entomol. 35: 175-182.
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2009

den Boer S. P. A., Baer B., Dreier S., Aron S., Nash D. R. & Boomsma J. J. Prudent sperm use by leaf-cutter ant queens. Proc. R. Soc. B 276: 3945-3953.
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Baer B., Eubel H., Taylor N. L., O'Toole N. & Millar H. A. (2009) Insights into female sperm storage from the spermathecal fluid proteome of the honeybee Apis mellifera. Gen. Biol. 10: R 67.1 - 67.16.
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Baer B., den Boer S. P. A., Kronauer D. J. C., Nash D. R. & Boomsma J. J. (2009) Fungus gardens of the leafcutter ant Atta colombica function as egg nurseries for the snake Leptodeira annulata. Insectes Soc. 56: 289-291.
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Himler A. G., Calderal E. J., Baer B., Schultz T., Fernandez-Marin H. & Mueller U. G. (2009) No sex in fungus-farming ants or their crops. Proc. R. Soc. B 276: 2611-2616.
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Baer B., Dijkstra M., Nash D. R., Mueller U. & Boomsma J. J. (2009) The evolution of sperm length in fungus growing ants. Behav. Ecol. 20: 38-45.
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Baer B., Heazlewood J. L., Taylor N. L., Eubel H & Millar H. A. (2009) The seminal fluid proteome of the honeybee Apis mellifera. Proteomics 9: 2085-2097.
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Den Boer S. P. A., Boomsma J. J & Baer B. (2009) Honeybee males and queens use glandular secretions to enhance sperm viability before and after storage. J. Insect Physiol. 55: 538-543.
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Baer B. (2009) CIBER: A new research initiative for the study of honeybees in Western Australia. The Australian Beekeeper 111:16-17.

2008

Den Boer S. P. A., Boomsma J.J & Baer B. (2008) Seminal fluid enhances sperm viability in the leafcutter ant Atta colombica. Behav. Ecol. Sociobiol. 62: 1843-1849.
View online at: Behavioral Ecology and Sociobiology or Read abstract.

2007

Wilfert L., Gadau J., Baer B., Reber & Schmid-Hempel P. (2007) Natural variation in the genetic architecture of a host-parasite interaction in the bumblebee Bombus terrestris. Mol. Ecol. 16: 1327-1339.
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2006

Baer B., Armitage S. A. O. & Boomsma J. J. (2006) Sperm storage induces an immunity cost in ants. Nature 441: 872-875.
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Baer B., de Jong G., Schmid-Hempel R., Schmid-Hempel P., Høeg J. T. & Boomsma J. J. (2006) Heritability of sperm length in the bumblebee Bombus terrestris. Genetica 127: 11-23.
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Baer B. & Boomsma J. J. (2006) Mating biology of the leaf-cutting ants Atta colombica and A. cephalotes. J. Morph. 267: 1165-1171.
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Baer B. & Schmid-Hempel P. (2006) Phenotypic variation in male and worker encapsulation response in the bumblebee Bombus terrestris. Ecol. Entomol. 31: 591-596.
View online at: Ecological Entomology or Read abstract.

2005

Boomsma J. J., Baer B. & Heinze J. (2005): The evolution of male traits in social insects. Annu. Rev. Entomol. 50: 395-420.
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Baer B. & Schmid-Hempel P. (2005) Sperm influences female hibernation success, survival and fitness in the bumblebee Bombus terrestris. Proc. R. Soc. L. 272 (1560): 319-323.
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Baer B. (2005) Sexual selection in Apis bees. Apidologie 36 (2), 187-200.
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Brown M. J. F. & Baer B. (2005) The evolutionary significance of long copulation duration in bumblebees. Apidologie 36 (2): 157-167.
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Baer B., Krug A., Boomsma J. J. & Hughes W. O. H. (2005) Examination of the immune responses of males and workers of the leaf-cutting ant Acromyrmex echinatior and the effect of infection. Insect. Soc. 52 (3): 298-303.
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2004

Baer B. & Boomsma J. J. (2004): Male reproductive investment and polyandry in fungus-growing ants. Behav. Ecol. 15 (3): 426-432.
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2003

Baer B. (2003): Bumblebees as model organisms to study male sexual selection in social insects. Behav. Ecol. Sociobiol. 54 (6): 521-533.
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Baer B. & Schmid-Hempel P. (2003): Effects of selective episodes in the field on life history traits in the bumblebee Bombus terrestris. Oikos 101 (3): 563-568.
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Baer B., Schmid-Hempel P., Høeg J. T. & Boomsma J. J. (2003): Sperm length, sperm storage and mating system evolution in bumblebees. Insect. Soc. 50 (2): 101-108.
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Baer B. & Schmid-Hempel P. (2003): Bumblebee workers from different sire groups vary in susceptibility to parasite infections. Ecol. Letters 6 (2): 106-110.
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2002

Brown M. J. F., Baer B., Schmid-Hempel R. & Schmid-Hempel P. (2002): Dynamics of multiple mating in the bumblebee Bombus hypnorum. Insect. Soc. 49 (4): 315 319.
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2001

Baer B. & Schmid-Hempel P. (2001): Unexpected consequences of polyandry for parasitism and fitness in the bumblebee B. terrestris. Evolution 55 (8): 1639-1643.
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Sauter A., Brown M. J. F., Baer B. & Schmid-Hempel P. (2001): Males of social insects can prevent queens from multiple mating. Proc. R. Soc. L., 268 (1475): 1449-1454.
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Baer B., Morgan E. D. & Schmid-Hempel P. (2001): A non-specific fatty acid prevents females from re-mating in bumblebees. Proc. Natl. Acad. Sci. 98 (7): 3926-3928.
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2000

Baer B., Maile R., Schmid-Hempel P. Morgan E. D. & Jones G. R. (2000): Chemistry of a mating plug in bumblebees. J. Chem. Ecol. 26 (8): 1869-1875.
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Baer B. & Schmid-Hempel P. (2000): Applied aspects of the artificial insemination for bumblebees. In Sommeijer, M J. & de Ruijter, A. eds: Insect pollination in greenhouses. Koninklijke Bibliotheek, Den Haag.

Baer B. & Schmid-Hempel P. (2000): The artificial insemination of bumblebees. Insect. Soc. 47 (2): 183-187.
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1999

Duvoisin N., Baer B. & Schmid-Hempel P. (1999): Sperm transfer and male competition in a bumblebee. Anim. Behav. 5 (4): 743-749.
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Baer B. & Schmid-Hempel P. (1999): Experimental variation in polyandry affects parasite loads and fitness in a bumblebee. Nature 397 (6715): 151-154.
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1997

Brodmann P. A., Reyer H. U. & Baer B. (1997): The relative importance of habitat structure and of prey characteristics for the foraging success of water pipits (Anthus spinoletta). Ethology 103 (3): 222-235.
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