ArticleEcology letters2020
Rapid decreases in relative testes mass among monogamous birds but not in other vertebrates.
Article in Ecology letters, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
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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.
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Who cites it
12 citing papers in PubMed.
- Climate and ecology predict latitudinal trends in sexual selection inferred from avian mating systems.PLoS biology · 2024Article
- Co-evolutionary dynamics of mammalian brain and body size.Nature ecology & evolution · 2024Article
- Tetrapod sperm length evolution in relation to body mass is shaped by multiple trade-offs.Nature communications · 2024Article
- Evolutionary trade-offs between testes size and parenting in Neotropical glassfrogs.Proceedings. Biological sciences · 2024Article
- Pre- and postcopulatory competition affect testes mass and organization differently in two monophyletic mole-rat species,Journal of mammalogy · 2023Article
- Fertilization modes and the evolution of sperm characteristics in marine fishes: Paired comparisons of externally and internally fertilizing species.Ecology and evolution · 2022Article
- Terrestrial reproduction and parental care drive rapid evolution in the trade-off between offspring size and number across amphibians.PLoS biology · 2022Article
- Article
- Genes underlying the evolution of tetrapod testes size.BMC biology · 2021Article
- Low sperm to egg ratio required for successfulRoyal Society open science · 2021Article
- Rare polyandry and common monogamy in the firefly squid, Watasenia scintillans.Scientific reports · 2020Article
- Resource-dependent investment in male sexual traits in a viviparous fish.Behavioral ecology : official journal of the International Society for Behavioral EcologyArticle
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
Larger testes produce more sperm and therefore improve reproductive success in the face of sperm competition. Adaptation to social mating systems with relatively high and low sperm competition are therefore likely to have driven changes in relative testes size in opposing directions. Here, we combine the largest vertebrate testes mass dataset ever collected with phylogenetic approaches for measuring rates of morphological evolution to provide the first quantitative evidence for how relative testes mass has changed over time. We detect explosive radiations of testes mass diversity distributed throughout the vertebrate tree of life: bursts of rapid change have been frequent during vertebrate evolutionary history. In socially monogamous birds, there have been repeated rapid reductions in relative testes mass. We see no such pattern in other monogamous vertebrates; the prevalence of monogamy in birds may have increased opportunities for investment in alternative behaviours and physiologies allowing reduced investment in expensive testes.
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Registered trials
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