The geography of snake reproductive mode: a global analysis of the evolution of snake viviparity
Aim : Although most reptiles are oviparous, viviparity is a commonmode of reproduction in squamates and has evolved multiple times in different lineages.We test two prevailing hypotheses regarding the biogeography of reptile reproductive modes to evaluate the selective forces driving the evolutio...
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2015
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my.unimas.ir.105602023-03-27T03:57:19Z http://ir.unimas.my/id/eprint/10560/ The geography of snake reproductive mode: a global analysis of the evolution of snake viviparity Anat, Feldman Aaron M., Bauer Fernando, Castro-Herrera Laurent, Chirio Indraneil, Das Tiffany M., Doan Erez, Maza Danny, Meirte Cristiano de, Campos Nogueira Zoltán, Tamás Nagy Omar, Torres-Carvajal Peter, Uetz Shai, Meiri QL Zoology Aim : Although most reptiles are oviparous, viviparity is a commonmode of reproduction in squamates and has evolved multiple times in different lineages.We test two prevailing hypotheses regarding the biogeography of reptile reproductive modes to evaluate the selective forces driving the evolution of viviparity in snakes. The cold climate hypothesis posits that viviparity is selected for in cold climates, whereas the climatic predictability hypothesis predicts that viviparity is advantageous in seasonal climates. Methods : We collated detailed distribution maps and reproductive mode data for 2663 species of the world’s terrestrial alethinophidian snakes.We studied the relationship between snake reproductive mode and environmental predictors. We applied both an ecological and an evolutionary approach to study snake reproductive mode by performing the analyses at the assemblage level and species level, respectively. We analysed our data at the global and continental scales to learn whether tendencies to viviparity are similar world-wide. Results : We found strong support for the cold climate hypothesis and the assumption that viviparity is an adaptation to cold environments. There was little support for the climatic predictability hypothesis. Nonetheless, viviparous species are not restricted to cold environments. Main conclusions : We conclude that viviparity is adaptive in cold climates, but not necessarily in unpredictable/seasonal climates. Current distributions may not reflect the climate at the time and place of speciation.We suspect many viviparous snakes inhabiting warm climates are members of lineages that originated in colder regions, and their occurrence in maladaptive environments is a result of phylogenetic conservatism. John Wiley & Sons, Ltd. 2015 Article PeerReviewed text en http://ir.unimas.my/id/eprint/10560/1/NO%20130%20The%20geography%20of%20snake%20reproductive%20mode%20%28abstract%29.pdf Anat, Feldman and Aaron M., Bauer and Fernando, Castro-Herrera and Laurent, Chirio and Indraneil, Das and Tiffany M., Doan and Erez, Maza and Danny, Meirte and Cristiano de, Campos Nogueira and Zoltán, Tamás Nagy and Omar, Torres-Carvajal and Peter, Uetz and Shai, Meiri (2015) The geography of snake reproductive mode: a global analysis of the evolution of snake viviparity. Global Ecology and Biogeography, 24 (12). pp. 1433-1442. ISSN 1466-8238 http://wileyonlinelibrary.com/journal/geb DOI: 10.1111/geb.12374 |
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QL Zoology Anat, Feldman Aaron M., Bauer Fernando, Castro-Herrera Laurent, Chirio Indraneil, Das Tiffany M., Doan Erez, Maza Danny, Meirte Cristiano de, Campos Nogueira Zoltán, Tamás Nagy Omar, Torres-Carvajal Peter, Uetz Shai, Meiri The geography of snake reproductive mode: a global analysis of the evolution of snake viviparity |
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Aim :
Although most reptiles are oviparous, viviparity is a commonmode of reproduction in squamates and has evolved multiple times in different lineages.We test two prevailing hypotheses regarding the biogeography of reptile reproductive modes to evaluate the selective forces driving the evolution of viviparity in snakes.
The cold climate hypothesis posits that viviparity is selected for in cold climates, whereas the climatic predictability hypothesis predicts that viviparity is advantageous in seasonal climates.
Methods :
We collated detailed distribution maps and reproductive mode data for 2663 species of the world’s terrestrial alethinophidian snakes.We studied the relationship
between snake reproductive mode and environmental predictors. We applied both an ecological and an evolutionary approach to study snake reproductive
mode by performing the analyses at the assemblage level and species level, respectively. We analysed our data at the global and continental scales to learn whether tendencies to viviparity are similar world-wide.
Results :
We found strong support for the cold climate hypothesis and the assumption that viviparity is an adaptation to cold environments. There was little support for the climatic predictability hypothesis. Nonetheless, viviparous species are not restricted to cold environments.
Main conclusions :
We conclude that viviparity is adaptive in cold climates, but not necessarily in unpredictable/seasonal climates. Current distributions may not reflect the climate at the time and place of speciation.We suspect many viviparous
snakes inhabiting warm climates are members of lineages that originated in colder regions, and their occurrence in maladaptive environments is a result of phylogenetic conservatism. |
format |
Article |
author |
Anat, Feldman Aaron M., Bauer Fernando, Castro-Herrera Laurent, Chirio Indraneil, Das Tiffany M., Doan Erez, Maza Danny, Meirte Cristiano de, Campos Nogueira Zoltán, Tamás Nagy Omar, Torres-Carvajal Peter, Uetz Shai, Meiri |
author_facet |
Anat, Feldman Aaron M., Bauer Fernando, Castro-Herrera Laurent, Chirio Indraneil, Das Tiffany M., Doan Erez, Maza Danny, Meirte Cristiano de, Campos Nogueira Zoltán, Tamás Nagy Omar, Torres-Carvajal Peter, Uetz Shai, Meiri |
author_sort |
Anat, Feldman |
title |
The geography of snake reproductive mode: a global analysis of the evolution of snake viviparity |
title_short |
The geography of snake reproductive mode: a global analysis of the evolution of snake viviparity |
title_full |
The geography of snake reproductive mode: a global analysis of the evolution of snake viviparity |
title_fullStr |
The geography of snake reproductive mode: a global analysis of the evolution of snake viviparity |
title_full_unstemmed |
The geography of snake reproductive mode: a global analysis of the evolution of snake viviparity |
title_sort |
geography of snake reproductive mode: a global analysis of the evolution of snake viviparity |
publisher |
John Wiley & Sons, Ltd. |
publishDate |
2015 |
url |
http://ir.unimas.my/id/eprint/10560/1/NO%20130%20The%20geography%20of%20snake%20reproductive%20mode%20%28abstract%29.pdf http://ir.unimas.my/id/eprint/10560/ http://wileyonlinelibrary.com/journal/geb |
_version_ |
1761623581645602816 |