10 research outputs found
Increases in the completeness of disease records in dairy databases following changes in the criteria determining whether a record counts as correct
Completeness of metabolic disease recordings in Nordic national databases for dairy cows
Validation of Nordic dairy cattle disease recording databases-Completeness for locomotor disorders
Data quality in the Norwegian dairy herd recording system: Agreement between the national database and disease recording on farm
Mate preference for multiple cues: interplay between male and nest size in the sand goby, Pomatoschistus minutus
Female mating preferences are often based on more than one cue. In empirical studies, however, different mate choice cues are typically treated separately ignoring their possible interactions. In the current work, we studied how male body size and size of the male's nest jointly affect mate preferences of female sand gobies, Pomatoschistus minutus. The females were given a binary choice between males that differed either in body size or size of their nest or both. We found that neither body size nor size of the nest alone affected male attractiveness, but together these 2 cues had a significant effect. Specifically, large males were more popular among females when they had a large nest than when they occupied a small nest. The results suggest that if interaction effects between multiple mate choice cues are not considered, there is a danger of ignoring or underestimating the importance of these cues in sexual selection by female choice. Copyright 2007, Oxford University Press.