Out of the tropics : Macroevolutionary size trends in an old insect order are shaped by temperature and predators
Svensson, Erik I. LU
; Gómez-Llano, Miguel
LU
and Waller, John T.
LU
(2023)
In Journal of Biogeography
50(3).
p.489-502
- Abstract
Aim: Global interspecific body size distributions have been suggested to be shaped by selection pressures arising from biotic and abiotic factors such as temperature, predation and parasitism. Here, we investigated the ecological and evolutionary drivers of global latitudinal size gradients in an old insect order. Location: Global. Taxon: Odonata (dragonflies and damselflies). Methods: We compiled data on interspecific variation in extant and extinct body sizes of Odonata, using an already existing database (The Odonate Phenotypic Database) and fossil data (The Paleobiology Database). We combined such body size data with latitudinal information and data on biotic and abiotic environmental variables across the globe to investigate and... (More)
Aim: Global interspecific body size distributions have been suggested to be shaped by selection pressures arising from biotic and abiotic factors such as temperature, predation and parasitism. Here, we investigated the ecological and evolutionary drivers of global latitudinal size gradients in an old insect order. Location: Global. Taxon: Odonata (dragonflies and damselflies). Methods: We compiled data on interspecific variation in extant and extinct body sizes of Odonata, using an already existing database (The Odonate Phenotypic Database) and fossil data (The Paleobiology Database). We combined such body size data with latitudinal information and data on biotic and abiotic environmental variables across the globe to investigate and quantify interspecific latitudinal size-gradients (“Bergmann's Rule”) and their environmental determinants. We used phylogenetic comparative methods and a global published phylogeny of Odonata to address these questions. Results: Phylogenetic comparative analyses revealed that global size variation of extant Odonata taxa is negatively influenced by both regional avian diversity and temperature, with larger-bodied species in the suborder Anisoptera (dragonflies) showing a steeper size-latitude relationship than smaller-bodied species in the suborder Zygoptera (damselflies). Interestingly, fossil data show that the relationship between wing size and latitude has shifted: latitudinal size trends had initially negative slopes but became shallower or positive following the evolutionary emergence and radiation of birds. Main Conclusions: The changing size-latitude trends over geological and macroevolutionary time were likely driven by a combination of predation from birds and maybe pterosaurs and high dispersal ability of large dragonflies. Our study reveals that a simple version of Bergmann's Rule based on temperature alone is not sufficient to explain interspecific size-latitude trends in Odonata. Our results instead suggest that latitudinal size gradients were shaped not only by temperature but also by avian predators, potentially driving the dispersal of large-sized clades out of the tropics and into the temperate zone.
(Less)
- author
- Svensson, Erik I.
LU
; Gómez-Llano, Miguel
LU
and Waller, John T.
LU
- organization
- publishing date
- 2023-03
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Bergmann's Rule, bird predation, body size, fossils, insects, latitudinal gradient, macroevolution, Odonata, Red Queen, tropics
- in
- Journal of Biogeography
- volume
- 50
- issue
- 3
- pages
- 14 pages
- publisher
- Wiley-Blackwell
- external identifiers
-
- scopus:85145029399
- ISSN
- 0305-0270
- DOI
- 10.1111/jbi.14544
- language
- English
- LU publication?
- yes
- additional info
- Funding Information: We are grateful to Stephen De Lisle, Masahito Tsuboi and Beatriz Willink for comments on earlier drafts of this manuscript, and to Robin Pranther, Kajsa Svensson and other students and laboratory assistants who helped out with compiling the data from the Odonata literature that has been analysed in this study. E.I.S. was funded by grants from the Swedish Research Council (VR: grant no. 2016‐03356), Gyllenstiernska Krapperupstiftelsen (grant no. KR2018‐0038), Lunds Djurskyddsfond, the Royal Physiographic Society in Lund, Stiftelsen Olle Engqvist Byggmästare and Stina Werners Foundation. M.G. was supported by an NSF‐grant (DEB1748945). No permits were required to carry out the research in this study. Funding Information: We are grateful to Stephen De Lisle, Masahito Tsuboi and Beatriz Willink for comments on earlier drafts of this manuscript, and to Robin Pranther, Kajsa Svensson and other students and laboratory assistants who helped out with compiling the data from the Odonata literature that has been analysed in this study. E.I.S. was funded by grants from the Swedish Research Council (VR: grant no. 2016-03356), Gyllenstiernska Krapperupstiftelsen (grant no. KR2018-0038), Lunds Djurskyddsfond, the Royal Physiographic Society in Lund, Stiftelsen Olle Engqvist Byggmästare and Stina Werners Foundation. M.G. was supported by an NSF-grant (DEB1748945). No permits were required to carry out the research in this study. Publisher Copyright: © 2023 The Authors. Journal of Biogeography published by John Wiley & Sons Ltd.
- id
- eaf7a68a-8ab5-4f28-a405-ceeb7784be9a
- date added to LUP
- 2024-01-12 12:33:10
- date last changed
- 2024-01-18 16:44:50
@article{eaf7a68a-8ab5-4f28-a405-ceeb7784be9a,
abstract = {{<p>Aim: Global interspecific body size distributions have been suggested to be shaped by selection pressures arising from biotic and abiotic factors such as temperature, predation and parasitism. Here, we investigated the ecological and evolutionary drivers of global latitudinal size gradients in an old insect order. Location: Global. Taxon: Odonata (dragonflies and damselflies). Methods: We compiled data on interspecific variation in extant and extinct body sizes of Odonata, using an already existing database (The Odonate Phenotypic Database) and fossil data (The Paleobiology Database). We combined such body size data with latitudinal information and data on biotic and abiotic environmental variables across the globe to investigate and quantify interspecific latitudinal size-gradients (“Bergmann's Rule”) and their environmental determinants. We used phylogenetic comparative methods and a global published phylogeny of Odonata to address these questions. Results: Phylogenetic comparative analyses revealed that global size variation of extant Odonata taxa is negatively influenced by both regional avian diversity and temperature, with larger-bodied species in the suborder Anisoptera (dragonflies) showing a steeper size-latitude relationship than smaller-bodied species in the suborder Zygoptera (damselflies). Interestingly, fossil data show that the relationship between wing size and latitude has shifted: latitudinal size trends had initially negative slopes but became shallower or positive following the evolutionary emergence and radiation of birds. Main Conclusions: The changing size-latitude trends over geological and macroevolutionary time were likely driven by a combination of predation from birds and maybe pterosaurs and high dispersal ability of large dragonflies. Our study reveals that a simple version of Bergmann's Rule based on temperature alone is not sufficient to explain interspecific size-latitude trends in Odonata. Our results instead suggest that latitudinal size gradients were shaped not only by temperature but also by avian predators, potentially driving the dispersal of large-sized clades out of the tropics and into the temperate zone.</p>}},
author = {{Svensson, Erik I. and Gómez-Llano, Miguel and Waller, John T.}},
issn = {{0305-0270}},
keywords = {{Bergmann's Rule; bird predation; body size; fossils; insects; latitudinal gradient; macroevolution; Odonata; Red Queen; tropics}},
language = {{eng}},
number = {{3}},
pages = {{489--502}},
publisher = {{Wiley-Blackwell}},
series = {{Journal of Biogeography}},
title = {{Out of the tropics : Macroevolutionary size trends in an old insect order are shaped by temperature and predators}},
url = {{http://dx.doi.org/10.1111/jbi.14544}},
doi = {{10.1111/jbi.14544}},
volume = {{50}},
year = {{2023}},
}