Genic capture and resolving the lek paradox.
- J. L. Tomkins, J. Radwan, J. Kotiaho, T. Tregenza
- BiologyTrends in Ecology & Evolution
- 1 June 2004
On the resolution of the lek paradox.
- J. Kotiaho, N. Lebas, M. Puurtinen, J. L. Tomkins
- BiologyTrends in Ecology & Evolution
- 2008
Costs of sexual traits: a mismatch between theoretical considerations and empirical evidence
- J. Kotiaho
- PsychologyBiological Reviews of The Cambridge Philosophical…
- 1 August 2001
It seems that the generally accepted notion that sexual traits are costly is in fact based almost exclusively on indirect evidence and that direct empirical evidence is very scarce.
Predicting the risk of extinction from shared ecological characteristics.
- J. Kotiaho, V. Kaitala, A. Komonen, J. Päivinen
- Environmental ScienceProceedings of the National Academy of Sciences…
- 8 February 2005
An analysis of ecological characteristics of 23 threatened and 72 nonthreatened butterfly species reveals that threatened butterflies are characterized by narrow niche breadth, restricted resource distribution, poor dispersal ability, and short flight period, and an ecological extinction risk rank is constructed.
Mate choice or polyandry: reconciling genetic compatibility and good genes sexual selection
- N. Colegrave, J. Kotiaho, J. L. Tomkins
- Biology
- 2002
This model shows that if there is some cost of mating, then some form of sperm selection based on compatibility is essential for the evolution of polyandry for compatibility, and finds that when both good genes and compatibility selection are in operation, selection for compatibility can reduce directional sexual selection by causing females to mate with males of lower genetic quality.
Towards a resolution of the lek paradox
- J. Kotiaho, L. Simmons, J. L. Tomkins
- BiologyNature
- 5 April 2001
Results from experiments showing that male courtship rate in the dung beetle Onthophagus taurus is a condition-dependent trait that is preferred by females are a significant step towards a resolution of the lek paradox.
Matters of Scale: Positive Allometry and the Evolution of Male Dimorphisms
- J. L. Tomkins, J. Kotiaho, N. Lebas
- BiologyAmerican Naturalist
- 20 January 2005
These findings question the currently held view that beetle horn dimorphisms showcase the importance of developmental independence in the evolution of diversity, and use predictions derived from allometric modeling to test for the existence of reprogramming thresholds.
Testing the assumptions of conditional handicap theory: costs and condition dependence of a sexually selected trait
- J. Kotiaho
- BiologyBehavioral Ecology and Sociobiology
- 24 August 2000
It is demonstrated that sexual signalling in H. rubrofasciata is condition dependent and costly, thus supporting conditional handicap models of sexual selection.
Energetic costs of size and sexual signalling in a wolf spider
- J. Kotiaho, R. Alatalo, J. Mappes, M. Nielsen, S. Parri, A. Rivero
- Environmental ScienceProceedings of the Royal Society of London…
- 22 November 1998
The results indicate that sexual signalling in the wolf spider Hygrolycosa rubrofasciata (Ohlert) is highly energetically demanding, which may be the main reason for the honesty of signalling in this species.
Condition dependence of pheromones and immune function in the grain beetle Tenebrio molitor
- M. Rantala, R. Kortet, J. Kotiaho, A. Vainikka, J. Suhonen
- Biology
- 1 August 2003
The results show that pheromones are condition-dependent signals, the quantity of which females use in their mate choice, and the production of the phersomones is affected by the condition of the male.
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