ArticleEcology and evolution2018
Imitating the cost of males: A hypothesis for coexistence of all-female sperm-dependent species and their sexual host.
Article in Ecology and evolution, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Diversity and composition of mixed-ploidy unisexual salamander assemblages reflect the key influence of host species.Oecologia · 2023Article
- Challenges and Costs of Asexuality: Variation in Premeiotic Genome Duplication in Gynogenetic Hybrids fromInternational journal of molecular sciences · 2021Article
- Using asexual vertebrates to study genome evolution and animal physiology: Banded (Evolutionary applications · 2020Article
- Inferring responses to climate warming from latitudinal pattern of clonal hybridization.Ecology and evolution · 2020Article
- The effects of allospecific mitochondrial genome on the fitness of northern redbelly dace (Ecology and evolution · 2018Article
- Article
- Imitating the cost of males: A hypothesis for coexistence of all-female sperm-dependent species and their sexual host.Ecology and evolution · 2018Article
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Authors and funding
2 authors.
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Abstract
All-female sperm-dependent species are particular asexual organisms that must coexist with a closely related sexual host for reproduction. However, demographic advantages of asexual over sexual species that have to produce male individuals could lead both to extinction. The unresolved question of their coexistence still challenges and fascinates evolutionary biologists. As an alternative hypothesis, we propose those asexual organisms are afflicted by a demographic cost analogous to the production of males to prevent exclusion of the host. Previously proposed hypotheses stated that asexual individuals relied on a lower fecundity than sexual females to cope with demographic advantage. In contrast, we propose that both sexual and asexual species display the same number of offspring, but half of asexual individuals imitate the cost of sex by occupying ecological niches but producing no offspring. Simulations of population growth in closed systems under different demographic scenarios revealed that only the presence of nonreproductive individuals in asexual females can result in long-term coexistence. This hypothesis is supported by the fact that half of the females in some sperm-dependent organisms did not reproduce clonally.
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