Radiating pain: venom has contributed to the diversification of the largest radiations of vertebrate and invertebrate animals

Abstract Background Understanding drivers of animal biodiversity has been a longstanding aim in evolutionary biology. Insects and fishes represent the largest lineages of invertebrates and vertebrates respectively, and consequently many ideas have been proposed to explain this diversity. Natural ene...

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Main Authors: Kevin Arbuckle, Richard J. Harris
Format: Article
Language:English
Published: BMC 2021-08-01
Series:BMC Ecology and Evolution
Subjects:
Online Access:https://doi.org/10.1186/s12862-021-01880-z
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author Kevin Arbuckle
Richard J. Harris
author_facet Kevin Arbuckle
Richard J. Harris
author_sort Kevin Arbuckle
collection DOAJ
description Abstract Background Understanding drivers of animal biodiversity has been a longstanding aim in evolutionary biology. Insects and fishes represent the largest lineages of invertebrates and vertebrates respectively, and consequently many ideas have been proposed to explain this diversity. Natural enemy interactions are often important in diversification dynamics, and key traits that mediate such interactions may therefore have an important role in explaining organismal diversity. Venom is one such trait which is intricately bound in antagonistic coevolution and has recently been shown to be associated with increased diversification rates in tetrapods. Despite ~ 10% of fish families and ~ 16% of insect families containing venomous species, the role that venom may play in these two superradiations remains unknown. Results In this paper we take a broad family-level phylogenetic perspective and show that variation in diversification rates are the main cause of variations in species richness in both insects and fishes, and that venomous families have diversification rates twice as high as non-venomous families. Furthermore, we estimate that venom was present in ~ 10% and ~ 14% of the evolutionary history of fishes and insects respectively. Conclusions Consequently, we provide evidence that venom has played a role in generating the remarkable diversity in the largest vertebrate and invertebrate radiations.
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spelling doaj.art-5880f084e8e044b983a6414e9d0e2dfe2022-12-21T18:33:54ZengBMCBMC Ecology and Evolution2730-71822021-08-0121111210.1186/s12862-021-01880-zRadiating pain: venom has contributed to the diversification of the largest radiations of vertebrate and invertebrate animalsKevin Arbuckle0Richard J. Harris1Department of Biosciences, College of Science, Swansea UniversityVenom Evolution Lab, School of Biological Sciences, University of QueenslandAbstract Background Understanding drivers of animal biodiversity has been a longstanding aim in evolutionary biology. Insects and fishes represent the largest lineages of invertebrates and vertebrates respectively, and consequently many ideas have been proposed to explain this diversity. Natural enemy interactions are often important in diversification dynamics, and key traits that mediate such interactions may therefore have an important role in explaining organismal diversity. Venom is one such trait which is intricately bound in antagonistic coevolution and has recently been shown to be associated with increased diversification rates in tetrapods. Despite ~ 10% of fish families and ~ 16% of insect families containing venomous species, the role that venom may play in these two superradiations remains unknown. Results In this paper we take a broad family-level phylogenetic perspective and show that variation in diversification rates are the main cause of variations in species richness in both insects and fishes, and that venomous families have diversification rates twice as high as non-venomous families. Furthermore, we estimate that venom was present in ~ 10% and ~ 14% of the evolutionary history of fishes and insects respectively. Conclusions Consequently, we provide evidence that venom has played a role in generating the remarkable diversity in the largest vertebrate and invertebrate radiations.https://doi.org/10.1186/s12862-021-01880-zDiversification ratesVenomInsectsFishesBiodiversitySpecies richness
spellingShingle Kevin Arbuckle
Richard J. Harris
Radiating pain: venom has contributed to the diversification of the largest radiations of vertebrate and invertebrate animals
BMC Ecology and Evolution
Diversification rates
Venom
Insects
Fishes
Biodiversity
Species richness
title Radiating pain: venom has contributed to the diversification of the largest radiations of vertebrate and invertebrate animals
title_full Radiating pain: venom has contributed to the diversification of the largest radiations of vertebrate and invertebrate animals
title_fullStr Radiating pain: venom has contributed to the diversification of the largest radiations of vertebrate and invertebrate animals
title_full_unstemmed Radiating pain: venom has contributed to the diversification of the largest radiations of vertebrate and invertebrate animals
title_short Radiating pain: venom has contributed to the diversification of the largest radiations of vertebrate and invertebrate animals
title_sort radiating pain venom has contributed to the diversification of the largest radiations of vertebrate and invertebrate animals
topic Diversification rates
Venom
Insects
Fishes
Biodiversity
Species richness
url https://doi.org/10.1186/s12862-021-01880-z
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AT richardjharris radiatingpainvenomhascontributedtothediversificationofthelargestradiationsofvertebrateandinvertebrateanimals