@ARTICLE{TreeBASE2Ref22331,
author = {Elizabeth R Dumont and Krishna Samavedam and Ian Grosse and Omar Warsi and Brandon Baird and Liliana M Davalos},
title = {Selection for mechanical advantage underlies multiple cranial optima in New World leaf-nosed bats},
year = {2014},
keywords = {Theoretical shape;feeding biomechanics;finite element analysis},
doi = {10.1111/evo.12358},
url = {http://onlinelibrary.wiley.com/doi/10.1111/evo.12358/abstract},
pmid = {},
journal = {Evolution},
volume = {68},
number = {5},
pages = {1436?1449},
abstract = {Selection for divergent performance optima has been proposed as a central mechanism underlying adaptive radiation. Uncovering multiple optima requires identifying forms associated with different adaptive zones and linking those forms to performance. However, testing and modeling the performance of complex morphologies like the cranium is challenging. We introduce a three-dimensional finite element (FE) model of the cranium that can be morphed into different shapes by varying simple parameters to investigate the relationship between two engineering-based measures of performance, mechanical advantage and von Mises stress, and four divergent adaptive zones occupied by New World leaf-nosed bats. To investigate these relationships,we tested the fit of Brownian motion and Ornstein-Uhlenbeck models of evolution in mechanical advantage and von Mises stress using dated multi-locus phylogenies. The analyses revealed three performance optima for mechanical advantage among species from three adaptive zones: bats that eat nectar; generalized insectivores omnivores and some frugivores; and bats that specialize on hard canopy fruits. Only two optima, one corresponding to nectar feeding, were consistently uncovered for von Mises stress. These results suggest that mechanical advantage played a larger role than von Mises stress in the radiation of New World leaf-nosed bats into divergent adaptive zones.}
}
Citation for Study 14654
Citation title:
"Selection for mechanical advantage underlies multiple cranial optima in New World leaf-nosed bats".
Study name:
"Selection for mechanical advantage underlies multiple cranial optima in New World leaf-nosed bats".
This study is part of submission 14654
(Status: Published).
Citation
Dumont E.R., Samavedam K., Grosse I., Warsi O., Baird B., & Davalos L.M. 2014. Selection for mechanical advantage underlies multiple cranial optima in New World leaf-nosed bats. Evolution, 68(5): 1436?1449.
Authors
-
Dumont E.R.
-
Samavedam K.
-
Grosse I.
-
Warsi O.
-
Baird B.
-
Davalos L.M.
(submitter)
6314137417
Abstract
Selection for divergent performance optima has been proposed as a central mechanism underlying adaptive radiation. Uncovering multiple optima requires identifying forms associated with different adaptive zones and linking those forms to performance. However, testing and modeling the performance of complex morphologies like the cranium is challenging. We introduce a three-dimensional finite element (FE) model of the cranium that can be morphed into different shapes by varying simple parameters to investigate the relationship between two engineering-based measures of performance, mechanical advantage and von Mises stress, and four divergent adaptive zones occupied by New World leaf-nosed bats. To investigate these relationships,we tested the fit of Brownian motion and Ornstein-Uhlenbeck models of evolution in mechanical advantage and von Mises stress using dated multi-locus phylogenies. The analyses revealed three performance optima for mechanical advantage among species from three adaptive zones: bats that eat nectar; generalized insectivores omnivores and some frugivores; and bats that specialize on hard canopy fruits. Only two optima, one corresponding to nectar feeding, were consistently uncovered for von Mises stress. These results suggest that mechanical advantage played a larger role than von Mises stress in the radiation of New World leaf-nosed bats into divergent adaptive zones.
Keywords
Theoretical shape;feeding biomechanics;finite element analysis
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S14654
- Other versions:
Nexus
NeXML
- Show BibTeX reference
@ARTICLE{TreeBASE2Ref22331,
author = {Elizabeth R Dumont and Krishna Samavedam and Ian Grosse and Omar Warsi and Brandon Baird and Liliana M Davalos},
title = {Selection for mechanical advantage underlies multiple cranial optima in New World leaf-nosed bats},
year = {2014},
keywords = {Theoretical shape;feeding biomechanics;finite element analysis},
doi = {10.1111/evo.12358},
url = {http://onlinelibrary.wiley.com/doi/10.1111/evo.12358/abstract},
pmid = {},
journal = {Evolution},
volume = {68},
number = {5},
pages = {1436?1449},
abstract = {Selection for divergent performance optima has been proposed as a central mechanism underlying adaptive radiation. Uncovering multiple optima requires identifying forms associated with different adaptive zones and linking those forms to performance. However, testing and modeling the performance of complex morphologies like the cranium is challenging. We introduce a three-dimensional finite element (FE) model of the cranium that can be morphed into different shapes by varying simple parameters to investigate the relationship between two engineering-based measures of performance, mechanical advantage and von Mises stress, and four divergent adaptive zones occupied by New World leaf-nosed bats. To investigate these relationships,we tested the fit of Brownian motion and Ornstein-Uhlenbeck models of evolution in mechanical advantage and von Mises stress using dated multi-locus phylogenies. The analyses revealed three performance optima for mechanical advantage among species from three adaptive zones: bats that eat nectar; generalized insectivores omnivores and some frugivores; and bats that specialize on hard canopy fruits. Only two optima, one corresponding to nectar feeding, were consistently uncovered for von Mises stress. These results suggest that mechanical advantage played a larger role than von Mises stress in the radiation of New World leaf-nosed bats into divergent adaptive zones.}
}
- Show RIS reference
TY - JOUR
ID - 22331
AU - Dumont,Elizabeth R
AU - Samavedam,Krishna
AU - Grosse,Ian
AU - Warsi,Omar
AU - Baird,Brandon
AU - Davalos,Liliana M
T1 - Selection for mechanical advantage underlies multiple cranial optima in New World leaf-nosed bats
PY - 2014
KW - Theoretical shape;feeding biomechanics;finite element analysis
UR - http://onlinelibrary.wiley.com/doi/10.1111/evo.12358/abstract
N2 - Selection for divergent performance optima has been proposed as a central mechanism underlying adaptive radiation. Uncovering multiple optima requires identifying forms associated with different adaptive zones and linking those forms to performance. However, testing and modeling the performance of complex morphologies like the cranium is challenging. We introduce a three-dimensional finite element (FE) model of the cranium that can be morphed into different shapes by varying simple parameters to investigate the relationship between two engineering-based measures of performance, mechanical advantage and von Mises stress, and four divergent adaptive zones occupied by New World leaf-nosed bats. To investigate these relationships,we tested the fit of Brownian motion and Ornstein-Uhlenbeck models of evolution in mechanical advantage and von Mises stress using dated multi-locus phylogenies. The analyses revealed three performance optima for mechanical advantage among species from three adaptive zones: bats that eat nectar; generalized insectivores omnivores and some frugivores; and bats that specialize on hard canopy fruits. Only two optima, one corresponding to nectar feeding, were consistently uncovered for von Mises stress. These results suggest that mechanical advantage played a larger role than von Mises stress in the radiation of New World leaf-nosed bats into divergent adaptive zones.
L3 - 10.1111/evo.12358
JF - Evolution
VL - 68
IS - 5
ER -