The Experts below are selected from a list of 8694 Experts worldwide ranked by ideXlab platform
Matthew P Rowe - One of the best experts on this subject based on the ideXlab platform.
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Meek Males and Fighting Females: Sexually-Dimorphic Antipredator Behavior and Locomotor Performance Is Explained by Morphology in Bark Scorpions (Centruroides vittatus)
2016Co-Authors: Bradley E Carlson, Shannen Mcginley, Matthew P RoweAbstract:Sexual dimorphism can result from sexual or ecological selective pressures, but the importance of alternative reproductive roles and trait compensation in generating phenotypic differences between the sexes is poorly understood. We evaluated morphological and behavioral sexual dimorphism in striped bark scorpions (Centruroides vittatus). We propose that reproductive roles have driven sexually dimorphic body mass in this species which produces sex differences in locomotor performance. Poor locomotor performance in the females (due to the burden of being gravid) favors compensatory aggression as part of an alternative Defensive Strategy, while male morphology is coadapted to support a sprinting-based Defensive Strategy. We tested the effects of sex and morphology on stinging and sprinting performance and characterized overall differences between the sexes in aggressiveness towards simulated threats. Greater body mass was associated with higher sting rates and slower sprinting within sexes, which explained the greater aggression of females (the heavier sex) and, along with longer legs in males, the improved sprint performance in males. These findings suggest females are aggressive to compensate for locomotor costs of reproduction while males possess longer legs to enhance sprinting for predator evasion and mate finding. Sexual dimorphism in the metasoma (‘‘tail’’) was unrelated to stinging and sprintin
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meek males and fighting females sexually dimorphic antipredator behavior and locomotor performance is explained by morphology in bark scorpions centruroides vittatus
PLOS ONE, 2014Co-Authors: Bradley E Carlson, Shannen Mcginley, Matthew P RoweAbstract:Sexual dimorphism can result from sexual or ecological selective pressures, but the importance of alternative reproductive roles and trait compensation in generating phenotypic differences between the sexes is poorly understood. We evaluated morphological and behavioral sexual dimorphism in striped bark scorpions (Centruroides vittatus). We propose that reproductive roles have driven sexually dimorphic body mass in this species which produces sex differences in locomotor performance. Poor locomotor performance in the females (due to the burden of being gravid) favors compensatory aggression as part of an alternative Defensive Strategy, while male morphology is coadapted to support a sprinting-based Defensive Strategy. We tested the effects of sex and morphology on stinging and sprinting performance and characterized overall differences between the sexes in aggressiveness towards simulated threats. Greater body mass was associated with higher sting rates and slower sprinting within sexes, which explained the greater aggression of females (the heavier sex) and, along with longer legs in males, the improved sprint performance in males. These findings suggest females are aggressive to compensate for locomotor costs of reproduction while males possess longer legs to enhance sprinting for predator evasion and mate finding. Sexual dimorphism in the metasoma (“tail”) was unrelated to stinging and sprinting performance and may best be explained by sexual selection.
Bradley E Carlson - One of the best experts on this subject based on the ideXlab platform.
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Meek Males and Fighting Females: Sexually-Dimorphic Antipredator Behavior and Locomotor Performance Is Explained by Morphology in Bark Scorpions (Centruroides vittatus)
2016Co-Authors: Bradley E Carlson, Shannen Mcginley, Matthew P RoweAbstract:Sexual dimorphism can result from sexual or ecological selective pressures, but the importance of alternative reproductive roles and trait compensation in generating phenotypic differences between the sexes is poorly understood. We evaluated morphological and behavioral sexual dimorphism in striped bark scorpions (Centruroides vittatus). We propose that reproductive roles have driven sexually dimorphic body mass in this species which produces sex differences in locomotor performance. Poor locomotor performance in the females (due to the burden of being gravid) favors compensatory aggression as part of an alternative Defensive Strategy, while male morphology is coadapted to support a sprinting-based Defensive Strategy. We tested the effects of sex and morphology on stinging and sprinting performance and characterized overall differences between the sexes in aggressiveness towards simulated threats. Greater body mass was associated with higher sting rates and slower sprinting within sexes, which explained the greater aggression of females (the heavier sex) and, along with longer legs in males, the improved sprint performance in males. These findings suggest females are aggressive to compensate for locomotor costs of reproduction while males possess longer legs to enhance sprinting for predator evasion and mate finding. Sexual dimorphism in the metasoma (‘‘tail’’) was unrelated to stinging and sprintin
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meek males and fighting females sexually dimorphic antipredator behavior and locomotor performance is explained by morphology in bark scorpions centruroides vittatus
PLOS ONE, 2014Co-Authors: Bradley E Carlson, Shannen Mcginley, Matthew P RoweAbstract:Sexual dimorphism can result from sexual or ecological selective pressures, but the importance of alternative reproductive roles and trait compensation in generating phenotypic differences between the sexes is poorly understood. We evaluated morphological and behavioral sexual dimorphism in striped bark scorpions (Centruroides vittatus). We propose that reproductive roles have driven sexually dimorphic body mass in this species which produces sex differences in locomotor performance. Poor locomotor performance in the females (due to the burden of being gravid) favors compensatory aggression as part of an alternative Defensive Strategy, while male morphology is coadapted to support a sprinting-based Defensive Strategy. We tested the effects of sex and morphology on stinging and sprinting performance and characterized overall differences between the sexes in aggressiveness towards simulated threats. Greater body mass was associated with higher sting rates and slower sprinting within sexes, which explained the greater aggression of females (the heavier sex) and, along with longer legs in males, the improved sprint performance in males. These findings suggest females are aggressive to compensate for locomotor costs of reproduction while males possess longer legs to enhance sprinting for predator evasion and mate finding. Sexual dimorphism in the metasoma (“tail”) was unrelated to stinging and sprinting performance and may best be explained by sexual selection.
Chan S Choi - One of the best experts on this subject based on the ideXlab platform.
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Defensive Strategy against a private label building brand premium for retailer cooperation
Journal of Retailing and Consumer Services, 2017Co-Authors: Chan S ChoiAbstract:Abstract We build a game-theoretic model of price competition between a national brand manufacturer and a retailer that also sells its private label. In particular, we examine a national brand's Strategy of building brand premium in the context of channel coordination. The importance of national brand's brand equity has been well-documented in many empirical and behavioral studies. We reinforce the argument that building brand premium should be the first line of defense for a national brand instead of aggressively cutting wholesale price. Not only does the national brand manufacturer benefit from it, but also the retailer who sells both the national brand and its own private label has less incentive to promote the latter. Therefore, it can induce retailer cooperation, which is essential for a successful Strategy in a distribution channel.
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Defensive Strategy against a private label building brand equity
2014Co-Authors: Chan S ChoiAbstract:We build a game-theoretic model of price competition between a national brand manufacturer and a retailer that also sells its private label. In particular, we examine brand-equity building as a Strategy for the national brand manufacturer. We find that brand building should be the first line of defense instead of aggressively cutting the wholesale price. Not only the national brand but also the retailer can benefit from it, which can justify cost sharing of brand-building efforts with the retailer.
Shannen Mcginley - One of the best experts on this subject based on the ideXlab platform.
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Meek Males and Fighting Females: Sexually-Dimorphic Antipredator Behavior and Locomotor Performance Is Explained by Morphology in Bark Scorpions (Centruroides vittatus)
2016Co-Authors: Bradley E Carlson, Shannen Mcginley, Matthew P RoweAbstract:Sexual dimorphism can result from sexual or ecological selective pressures, but the importance of alternative reproductive roles and trait compensation in generating phenotypic differences between the sexes is poorly understood. We evaluated morphological and behavioral sexual dimorphism in striped bark scorpions (Centruroides vittatus). We propose that reproductive roles have driven sexually dimorphic body mass in this species which produces sex differences in locomotor performance. Poor locomotor performance in the females (due to the burden of being gravid) favors compensatory aggression as part of an alternative Defensive Strategy, while male morphology is coadapted to support a sprinting-based Defensive Strategy. We tested the effects of sex and morphology on stinging and sprinting performance and characterized overall differences between the sexes in aggressiveness towards simulated threats. Greater body mass was associated with higher sting rates and slower sprinting within sexes, which explained the greater aggression of females (the heavier sex) and, along with longer legs in males, the improved sprint performance in males. These findings suggest females are aggressive to compensate for locomotor costs of reproduction while males possess longer legs to enhance sprinting for predator evasion and mate finding. Sexual dimorphism in the metasoma (‘‘tail’’) was unrelated to stinging and sprintin
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meek males and fighting females sexually dimorphic antipredator behavior and locomotor performance is explained by morphology in bark scorpions centruroides vittatus
PLOS ONE, 2014Co-Authors: Bradley E Carlson, Shannen Mcginley, Matthew P RoweAbstract:Sexual dimorphism can result from sexual or ecological selective pressures, but the importance of alternative reproductive roles and trait compensation in generating phenotypic differences between the sexes is poorly understood. We evaluated morphological and behavioral sexual dimorphism in striped bark scorpions (Centruroides vittatus). We propose that reproductive roles have driven sexually dimorphic body mass in this species which produces sex differences in locomotor performance. Poor locomotor performance in the females (due to the burden of being gravid) favors compensatory aggression as part of an alternative Defensive Strategy, while male morphology is coadapted to support a sprinting-based Defensive Strategy. We tested the effects of sex and morphology on stinging and sprinting performance and characterized overall differences between the sexes in aggressiveness towards simulated threats. Greater body mass was associated with higher sting rates and slower sprinting within sexes, which explained the greater aggression of females (the heavier sex) and, along with longer legs in males, the improved sprint performance in males. These findings suggest females are aggressive to compensate for locomotor costs of reproduction while males possess longer legs to enhance sprinting for predator evasion and mate finding. Sexual dimorphism in the metasoma (“tail”) was unrelated to stinging and sprinting performance and may best be explained by sexual selection.
Tang Xianlu - One of the best experts on this subject based on the ideXlab platform.
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robot soccer Defensive Strategy based on multi objective chaotic pso
Computer Simulation, 2014Co-Authors: Tang XianluAbstract:A robot soccer Defensive Strategy based on multi-objective chaotic particle swarm algorithm was proposed. When two or more opponents attacked, the proposed Strategy could guide the Defensive players move and defense. Meanwhile, in order to defense successfully, the proposed Strategy selected the player with the best position to intercept the ball which was controlled by the main attacker. The traditional Strategy could just take some coping strategies according to the different environment. However, the robot soccer Defensive Strategy based on multi-objective PSO increased the adaptability in the dynamic competition environment by the random characteristic of PSO. In order to avoid trapping in the local optimum, a chaotic optimization was combined in the proposed multi-objective PSO to improve the diversity of the population. To verify the effectiveness of the proposed algorithm in FIRA simulation platform, MO-CPSO was evaluated in the robot soccer competition, and the experiment results show that the robot soccer Defensive Strategy based on multi-objective chaotic PSO can improve the capacity of group defense than the traditional Defensive Strategy.
