Life-history consequences of bidirectional selection for male morph in a male-dimorphic bulb mite.

ABSTRACT: Intralocus sexual conflict (IASC) arises when males and females have different trait optima. Some males pursue different alternative reproductive tactics (ARTs) with different trait optima, resulting in different strengths of IASC. Consequently, for instance daughter fitness is differentially affected by her sire's morph. We tested if-and which-other life-history traits correlatively change in bidirectional, artificial selection experiments for ARTs. We used the male-dimorphic bulb mite Rhizoglyphus robini, the males of which are high-fitness 'fighters' or low-fitness 'scramblers'. Twice in each of the five generations of selection, we assessed clutch composition (number of mites of the various life stages present) and size (total number of offspring). Furthermore, we tracked offspring fro

SUBMITTER: Van den Beuken TPG 

PROVIDER: S-EPMC6280856 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature