Resource-dependent investment in male sexual traits in a viviparous fish.

ABSTRACT: Exaggerated and conspicuous sexually selected traits are often costly to produce and maintain. Costly traits are expected to show resource-dependent expression, since limited resources prevent animals from investing maximally in multiple traits simultaneously. However, there may be critical periods during an individual's life where the expression of traits is altered if resources are limited. Moreover, costly sexual traits may arise from sexual selection acting both before (pre-copulatory) and after mating (post-copulatory). Gaining a robust understanding of resource-dependent trait expression therefore requires an approach that examines both episodes of sexual selection after resource limitation during different times in an individual's life. Yet few studies have taken such an approach. H

SUBMITTER: Fernlund Isaksson E 

PROVIDER: S-EPMC9639585 | biostudies-literature | 2022 Sep-Oct

REPOSITORIES: biostudies-literature