ArticleProceedings. Biological sciences2015
Evolutionary rescue and the coexistence of generalist and specialist competitors: an experimental test.
Article in Proceedings. Biological sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Distribution patterns and community assembly processes of generalists and specialists in river affected by wastewater discharge from distilleries in typical Chinese spirits production area in China.Frontiers in microbiology · 2026Article
- Evolution in Response to an Abiotic Stress Shapes Species Coexistence.Ecology letters · 2025Article
- The host range of generalist and specialist phages in capsule-diverse Klebsiella hosts is driven by the evolvability of receptor-binding proteins.PLoS biology · 2025Article
- Spatial clustering of hosts can favor specialist parasites.Ecology and evolution · 2024Article
- Experimental Evolution Studies in Φ6 Cystovirus.Viruses · 2024Review
- Article
- A meta-analysis highlights the idiosyncratic nature of tradeoffs in laboratory models of virus evolution.Virus evolution · 2024Article
- Host diversity slows bacteriophage adaptation by selecting generalists over specialists.Nature ecology & evolution · 2021Article
- The problem of mediocre generalists: population genetics and eco-evolutionary perspectives on host breadth evolution in pathogens.Proceedings. Biological sciences · 2020Article
- The evolution of parasite host range in heterogeneous host populations.Journal of evolutionary biology · 2020Article
- Does fungal competitive ability explain host specificity or rarity in ectomycorrhizal symbioses?PloS one · 2020Article
- Time-resolved DNA release from an O-antigen-specificThe Journal of biological chemistry · 2019Article
- Gauging genetic diversity of generalists: A test of genetic and ecological generalism with RNA virus experimental evolution.Virus evolution · 2019Article
- Gene(s) and individual feeding behavior: Exploring eco-evolutionary dynamics underlying left-right asymmetry in the scale-eating cichlid fishEcology and evolution · 2018Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Competition for resources is thought to play a critical role in both the origins and maintenance of biodiversity. Although numerous laboratory evolution experiments have confirmed that competition can be a key driver of adaptive diversification, few have demonstrated its role in the maintenance of the resulting diversity. We investigate the conditions that favour the origin and maintenance of alternative generalist and specialist resource-use phenotypes within the same population. Previously, we confirmed that competition for hosts among φ6 bacteriophage in a mixed novel (non-permissive) and ancestral (permissive) host microcosm triggered the evolution of a generalist phenotype capable of infecting both hosts. However, because the newly evolved generalists tended to competitively exclude the ancestral specialists, coexistence between the two phenotypes was rare. Here, we show that reducing the relative abundance of the novel host slowed the increase in frequency of the generalist phenotype, allowing sufficient time for the specialist to further adapt to the ancestral host. This adaptation resulted in 'evolutionary rescue' of the specialists, preventing their competitive exclusion by the generalists. Thus, our results suggest that competition promotes both the origin and maintenance of biodiversity when it is strong enough to favour a novel resource-use phenotype, but weak enough to allow adaptation of both the novel and ancestral phenotypes to their respective niches.
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