ArticleEcology and evolution2013
The adaptive significance of population differentiation in offspring size of the least killifish, Heterandria formosa.
Article in Ecology and evolution, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
13 citing papers in PubMed, 25 citations in OpenAlex.
- Artificial selection for adult predation survival affects life history and morphology in guppies (Science advances · 2025Article
- Identification of key genes related to growth of largemouth bass (Frontiers in molecular biosciences · 2024Article
- Plastic maternal effects of social density on reproduction and fitness in the least killifish,Ecology and evolution · 2023Article
- Maternal food restriction during pregnancy affects offspring development and swimming performance in a placental live-bearing fish.The Journal of experimental biology · 2022Article
- Ancestral ecological regime shapes reaction to food limitation in the Least Killifish,Ecology and evolution · 2021Article
- Comparative transcriptome profiles of large and small bodied large-scale loaches cultivated in paddy fields.Scientific reports · 2021Article
- Parasite infestation influences life history but not boldness behavior in placental live-bearing fish.Oecologia · 2020Article
- Predation risk shapes the degree of placentation in natural populations of live-bearing fish.Ecology letters · 2020Article
- Maternal size and body condition predict the amount of post-fertilization maternal provisioning in matrotrophic fish.Ecology and evolution · 2018Article
- Unique maternal and environmental effects on the body morphology of the Least Killifish,Ecology and evolution · 2018Article
- Shape variation in the least killifish: ecological associations of phenotypic variation and the effects of a common garden.Ecology and evolution · 2015Article
- Iterative development and the scope for plasticity: contrasts among trait categories in an adaptive radiation.Heredity · 2015Review
- Differential gene expression in small and large rainbow trout derived from two seasonal spawning groups.BMC genomics · 2014Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We tested the hypothesis that density-dependent competition influences the evolution of offspring size. We studied two populations of the least killifish (Heterandria formosa) that differ dramatically in population density; these populations are genetically differentiated for offspring size, and females from both populations produce larger offspring when they experience higher social densities. To look at the influences of population of origin and relative body size on competitive ability, we held females from the high-density population at two different densities to create large and small offspring with the same genetic background. We measured the competitive ability of those offspring in mesocosms that contained either pure or mixed population treatments at either high or low density. High density increased competition, which was most evident in greatly reduced individual growth rates. Larger offspring from the high-density population significantly delayed the onset of maturity of fish from the low-density population. From our results, we infer that competitive conditions in nature have contributed to the evolution of genetically based interpopulation differences in offspring size as well as plasticity in offspring size in response to conspecific density.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.