Allometry and developmental integration of body growth in a piranha, Pygocentrus nattereri (Teleostei: Ostariophysi)
dc.contributor.author | Zelditch, Miriam Leah | en_US |
dc.contributor.author | Fink, William L. | en_US |
dc.date.accessioned | 2007-04-06T18:47:59Z | |
dc.date.available | 2007-04-06T18:47:59Z | |
dc.date.issued | 1995-03 | en_US |
dc.identifier.citation | Zelditch, Miriam Leah; Fink, William L. (1995)."Allometry and developmental integration of body growth in a piranha, Pygocentrus nattereri (Teleostei: Ostariophysi)." Journal of Morphology 223(3): 341-355. <http://hdl.handle.net/2027.42/50288> | en_US |
dc.identifier.issn | 0362-2525 | en_US |
dc.identifier.issn | 1097-4687 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/50288 | |
dc.description.abstract | Piranhas, like many teleosts, change their diets on both ontogenetic and phylogenetic time scales. Prior studies have suggested that pervasive morphological changes in body form on a phylogenetic time scale may be related to changes in diet, but previous reports have found little shape change in piranhas on an ontogenetic time scale. We re-examine the post-transformational allometry of body form in one piranha, Pygocentrus nattereri (Kner), using the method of thin-plate splines decomposed by their partial warps. We find substantial evidence of allometry, primarily elongation of the mid-body relative to the more anterior and posterior regions, elongation of the postorbital and nape regions relative to the more anterior head and posterior body, and deepening of the head relative to the body. In addition to these pervasive changes throughout the body, there are some that are more localized, especially elongation of the postorbital region relative to eye diameter and snout, and an even more localized elongation of the snout relative to eye diameter. Initial dietary transitions are associated with changes in head and jaw proportions, but rates of shape change decelerate through growth, so that the final transition to a diet increasingly dominated by small whole fish appears associated with change largely in overall body size. © 1995 Wiley-Liss, Inc. | en_US |
dc.format.extent | 1156864 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Wiley Subscription Services, Inc., A Wiley Company | en_US |
dc.subject.other | Life and Medical Sciences | en_US |
dc.subject.other | Cell & Developmental Biology | en_US |
dc.title | Allometry and developmental integration of body growth in a piranha, Pygocentrus nattereri (Teleostei: Ostariophysi) | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Molecular, Cellular and Developmental Biology | en_US |
dc.subject.hlbtoplevel | Health Sciences | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Museum of Paleontology, University of Michigan, Ann Arbor, Michigan 48109 | en_US |
dc.contributor.affiliationum | Museum of Zoology and Department of Biology, University of Michigan, Ann Arbor, Michigan 48109 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/50288/1/1052230309_ftp.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1002/jmor.1052230309 | en_US |
dc.identifier.source | Journal of Morphology | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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