Female alternative reproductive tactics: diversity and drivers

Trends Ecol Evol. 2024 Oct;39(10):937-946. doi: 10.1016/j.tree.2024.06.002. Epub 2024 Jul 1.

Abstract

It is often argued that anisogamy causes alternative reproductive tactics (ARTs) to be more common in males than females. We challenge this view by pointing out logical flaws in the argument. We then review recent work on the diversity of female ARTs, listing several understudied types such as solitary versus communal breeding and facultative parthenogenesis. We highlight an important difference between male and female ARTs that caused female ARTs to be overlooked: male ARTs tend to focus on successful fertilization, whereas female ARTs occur at many stages of reproduction and often form complex networks of decision points. We propose to study correlated female ARTs as a whole to better understand their drivers and eco-evolutionary dynamics.

Keywords: alternative reproductive tactics; behavioral polymorphism; cost of reproduction; parental care; sexual dimorphism; sexual selection.

Publication types

  • Review

MeSH terms

  • Animals
  • Biological Evolution
  • Female
  • Male
  • Parthenogenesis
  • Reproduction*
  • Sexual Behavior, Animal