TY  - JOUR
AB  - A complete understanding of male reproductive success, and thus sexual selection, often requires an insight into male success in sperm competition. Genuine conclusions on male sperm competitiveness can only be made in real competitive situations. However, statistical analyses of sperm competitiveness from fertilization success data have been shown to be problematic. Here, I first outline a comprehensive general description of the different additive and nonadditive elements relevant for the outcome of sperm competition staged between two males. Based on this description, I will highlight two main problems that are frequently encountered in experiments aiming at estimating sperm competitiveness. First, I focus on potential problems when using standardized competitors versus random mating trials, because trials with standardized competitors do not allow generalization if malemale interactions are important. Second, I illustrate the necessity to analyze data on the logit scale rather than on raw proportions, because only the logit scale allows a clean separation of additive and nonadditive effects (i.e., male x male and female x male interactions).
DA  - 2013
DO  - 10.1111/evo.12024
KW  - Experimental design
KW  - female-by-male interaction
KW  - interacting phenotypes
KW  - male-by-male interaction
KW  - multiple mating
KW  - reproductive success
KW  - sexual selection
KW  - sperm competition
LA  - eng
IS  - 5
M2  - 1396
PY  - 2013
SN  - 0014-3820
SP  - 1396-1405
T2  - Evolution
TI  - A general description of additive and non-additive elements of sperm competitiveness and their relation to male fertilization success
UR  - https://nbn-resolving.org/urn:nbn:de:0070-pub-25459193
Y2  - 2024-11-22T03:59:35
ER  -