All Outputs (67)

Identification of an ant queen pheromone regulating worker sterility (2010)
Journal Article
Holman, L., Jørgensen, C. G., Nielsen, J., & d'Ettorre, P. (2010). Identification of an ant queen pheromone regulating worker sterility. Proceedings of the Royal Society B: Biological Sciences, 277(1701), 3793-3800. https://doi.org/10.1098/rspb.2010.0984

The selective forces that shape and maintain eusocial societies are an enduring puzzle in evolutionary biology. Ordinarily sterile workers can usually reproduce given the right conditions, so the factors regulating reproductive division of labour may... Read More about Identification of an ant queen pheromone regulating worker sterility.

Selfish strategies and honest signalling: reproductive conflicts in ant queen associations (2010)
Journal Article
Holman, L., Dreier, S., & d'Ettorre, P. (2010). Selfish strategies and honest signalling: reproductive conflicts in ant queen associations. Proceedings of the Royal Society B: Biological Sciences, 277(1690), 2007-2015. https://doi.org/10.1098/rspb.2009.2311

Social insects offer unique opportunities to test predictions regarding the evolution of cooperation, life histories and communication. Colony founding by groups of unrelated queens, some of which are later killed, may select for selfish reproductive... Read More about Selfish strategies and honest signalling: reproductive conflicts in ant queen associations.

Sperm viability staining in ecology and evolution: potential pitfalls (2009)
Journal Article
Holman, L. (2009). Sperm viability staining in ecology and evolution: potential pitfalls. Behavioral Ecology and Sociobiology, 63, 1679-1688. https://doi.org/10.1007/s00265-009-0816-4

The causes and consequences of variation in sperm quality, survival and ageing are active areas of research in ecology and evolution. In order to address these topics, many recent studies have measured sperm viability using fluorescent staining. Alth... Read More about Sperm viability staining in ecology and evolution: potential pitfalls.

Drosophila melanogaster seminal fluid can protect the sperm of other males (2008)
Journal Article
Holman, L. (2009). Drosophila melanogaster seminal fluid can protect the sperm of other males. Functional Ecology, 23(1), 180-186. https://doi.org/10.1111/j.1365-2435.2008.01509.x

Many internally‐fertilizing animals produce seminal fluid which is transferred along with sperm during mating. Seminal fluid typically contains a diverse range of chemicals that coordinate sperm storage, moderate sperm motility, provide advantages in... Read More about Drosophila melanogaster seminal fluid can protect the sperm of other males.

What use is an infertile sperm? A comparative test of parasperm function in sperm-heteromorphic Drosophila (2007)
Journal Article
Holman, L., Freckleton, R. P., & Snook, R. R. (2008). What use is an infertile sperm? A comparative test of parasperm function in sperm-heteromorphic Drosophila. Evolution, 62(2), 374-385. https://doi.org/10.1111/j.1558-5646.2007.00280.x

Sperm size and number are important determinants of male reproductive success. The genus Drosophila exhibits a remarkable diversity of sperm production strategies, including the production of multiple sperm morphs by individual males, a phenomenon ca... Read More about What use is an infertile sperm? A comparative test of parasperm function in sperm-heteromorphic Drosophila.

Spermicide, cryptic female choice and the evolution of sperm form and function (2006)
Journal Article
Holman, L., & Snook, R. R. (2006). Spermicide, cryptic female choice and the evolution of sperm form and function. Journal of Evolutionary Biology, 19(5), 1660-1670. https://doi.org/10.1111/j.1420-9101.2006.01112.x

Sperm competition and cryptic female choice profoundly affect sperm morphology, producing diversity within both species and individuals. One type of within‐individual sperm variation is sperm heteromorphism, in which each male produces two or more di... Read More about Spermicide, cryptic female choice and the evolution of sperm form and function.

Modulation of sexual signalling by immune challenged male mealworm beetles (Tenebrio molitor, L.): evidence for terminal investment and dishonesty (2006)
Journal Article
Sadd, B., Holman, L., Armitage, H., Lock, F., Marland, R., & Siva-Jothy, M. T. (2006). Modulation of sexual signalling by immune challenged male mealworm beetles (Tenebrio molitor, L.): evidence for terminal investment and dishonesty. Journal of Evolutionary Biology, 19(2), 321-325. https://doi.org/10.1111/j.1420-9101.2005.01062.x

Organisms partition resources into life‐history traits in order to maximise fitness over their expected lifespan. For the males of many species fitness is determined by qualitative and quantitative aspects of costly sexual signals: The notion that ep... Read More about Modulation of sexual signalling by immune challenged male mealworm beetles (Tenebrio molitor, L.): evidence for terminal investment and dishonesty.