Project 3110: J. A. Gray, E. Sherratt, M. N. Hutchinson, M. E. Jones. 2019. Changes in ontogenetic patterns facilitate diversification in skull shape of Australian agamid lizards. BMC Evolutionary Biology. 19 (1):7.
Specimen: Amphibolurus muricatus (AA66262)
View: lateral

Abstract

Background: Morphological diversity among closely related animals can be the result of differing growth patterns. The Australian radiation of agamid lizards (Amphibolurinae) exhibits great ecological and morphological diversity, which they have achieved on a continent-wide scale, in a relatively short period of time (30 million years). Amphibolurines therefore make an ideal study group for examining ontogenetic allometry. We used two-dimensional landmark-based geometric morphometric methods to characterise the postnatal growth patterns in cranial shape of 18 species of amphibolurine lizards and investigate the associations between cranial morphology, and life habit and phylogeny.
Results: For most amphibolurine species, juveniles share a similar cranial phenotype, but by adulthood crania are more disparate in shape and occupy different sub-spaces of the total shape space. To achieve this disparity, crania do not follow a common post-natal growth pattern; there are differences among species in both the direction and magnitude of change in morphospace. We found that these growth patterns among the amphibolurines are significantly associated with ecological life habits. The clade Ctenophorus includes species that undergo small magnitudes of shape change during growth. They have dorsoventrally deep, blunt-snouted skulls (associated with terrestrial lifestyles), and also dorsoventrally flat skulls (associated with saxicolous lifestyles). The sister clade to Ctenophorus, which includes the bearded dragon (Pogona), frill-neck lizard (Chlamydosaurus), and long-nosed dragon (Gowidon), exhibit broad and robust post-orbital regions and differing snout lengths (mainly associated with scansorial lifestyles).
Conclusions: Australian agamids show great variability in the timing of development and divergence of growth trajectories which results in a diversity of adult cranial shapes. Phylogenetic signal in cranial morphology appears to be largely overwritten by signals that reflect life habit. This knowledge about growth patterns and skull shape diversity in agamid lizards will be valuable for placing phylogenetic, functional and ecological studies in a morphological context.


Read the article »

Article DOI: 10.1186/s12862-018-1335-6

Project DOI: 10.7934/P3110, http://dx.doi.org/10.7934/P3110
This project contains
  • 361 Media
  • 2 Documents
  • 36 Taxa
  • 364 Specimens
Total size of project's media files: 358.69M

Download Project SDD File
Currently Viewing:
MorphoBank Project 3110

    Authors' Institutions

    • Natural History Museum, London

    • University of Adelaide

    • South Australian Museum



    Members

    member name taxa specimens media
    Jaimi Gray
    Project Administrator
    36364361


    Project has no matrices defined.



    Project views

    type number of views Individual items viewed (where applicable)
    Total project views135051
    Project overview1446
    Media views47925Media search (2687 views); M476177 (234 views); M476108 (314 views); M476156 (239 views); M476186 (275 views); M476113 (285 views); M476141 (234 views); M476128 (276 views); M476139 (237 views); M476146 (228 views); M476100 (300 views); M476101 (303 views); M476181 (225 views); M476142 (230 views); M476127 (295 views); M476182 (231 views); M476102 (297 views); M476132 (246 views); M476147 (225 views); M476125 (300 views); M476119 (306 views); M476168 (216 views); M476130 (252 views); M476137 (219 views); M476122 (288 views); M476180 (229 views); M476114 (296 views); M476185 (235 views); M476178 (224 views); M476109 (323 views); M476172 (222 views); M476176 (225 views); M476138 (231 views); M476161 (219 views); M476187 (222 views); M476131 (246 views); M476120 (288 views); M476095 (301 views); M476103 (291 views); M476169 (226 views); M476167 (228 views); M476173 (225 views); M476096 (298 views); M476115 (295 views); M476143 (220 views); M476165 (241 views); M476154 (225 views); M476136 (246 views); M476088 (302 views); M476134 (240 views); M476092 (301 views); M476150 (229 views); M476118 (296 views); M476090 (302 views); M476116 (298 views); M476152 (220 views); M476148 (236 views); M476179 (222 views); M476089 (298 views); M476091 (299 views); M476123 (290 views); M476159 (228 views); M476149 (214 views); M476144 (238 views); M476093 (339 views); M476164 (225 views); M476160 (236 views); M476166 (240 views); M476184 (220 views); M476099 (300 views); M476140 (226 views); M476170 (232 views); M476117 (288 views); M476112 (296 views); M476111 (297 views); M476171 (298 views); M476135 (254 views); M476097 (308 views); M476153 (231 views); M476129 (249 views); M476145 (222 views); M476158 (231 views); M476124 (293 views); M476162 (247 views); M476126 (289 views); M476163 (229 views); M476110 (297 views); M476133 (254 views); M476094 (300 views); M476098 (299 views); M476121 (290 views); M476107 (280 views); M476155 (231 views); M476157 (227 views); M476106 (295 views); M476104 (305 views); M476105 (292 views); M476151 (230 views); M476174 (234 views); M476175 (226 views); M476183 (221 views); M476188 (144 views); M476189 (142 views); M476190 (149 views); M476191 (159 views); M476192 (153 views); M476193 (154 views); M476194 (158 views); M476195 (148 views); M476196 (143 views); M476197 (163 views); M476198 (133 views); M476199 (151 views); M476200 (152 views); M476201 (150 views); M476202 (153 views); M476203 (154 views); M476204 (145 views); M476205 (162 views); M476206 (156 views); M476207 (152 views); M476208 (155 views); M476209 (159 views); M476210 (151 views); M476211 (150 views); M476212 (152 views); M476213 (146 views); M476214 (156 views); M476215 (150 views); M476216 (148 views); M476217 (150 views); M476218 (152 views); M476219 (156 views); M476220 (154 views); M476221 (151 views); M476222 (154 views); M476223 (154 views); M476224 (148 views); M476225 (159 views); M476226 (152 views); M476227 (147 views); M476228 (140 views); M476229 (149 views); M476230 (152 views); M476231 (152 views); M476232 (151 views); M476233 (156 views); M476234 (153 views); M476235 (151 views); M476236 (152 views); M476237 (160 views); M476238 (150 views); M476239 (150 views); M476240 (153 views); M476241 (144 views); M476242 (140 views); M476243 (156 views); M476244 (155 views); M476245 (151 views); M476246 (160 views); M476247 (152 views); M476248 (159 views); M476249 (149 views); M476250 (153 views); M476251 (158 views); M476252 (150 views); M476253 (152 views); M476254 (147 views); M476255 (157 views); M476256 (150 views); M476257 (155 views); M476258 (160 views); M476259 (157 views); M476260 (152 views); M476261 (153 views); M476262 (155 views); M476263 (154 views); M476264 (154 views); M476265 (157 views); M476266 (159 views); M476267 (163 views); M476268 (155 views); M476269 (151 views); M476270 (153 views); M476271 (157 views); M476272 (157 views); M476273 (152 views); M476274 (160 views); M476275 (149 views); M476276 (150 views); M476277 (153 views); M476278 (155 views); M476279 (148 views); M476280 (154 views); M476281 (156 views); M476282 (154 views); M476283 (149 views); M476284 (158 views); M476285 (160 views); M476286 (161 views); M476287 (149 views); M476288 (147 views); M476289 (148 views); M476290 (151 views); M476291 (153 views); M476292 (152 views); M476293 (146 views); M476294 (156 views); M476295 (143 views); M476296 (151 views); M476297 (146 views); M476298 (149 views); M476299 (149 views); M476300 (151 views); M476301 (152 views); M476302 (147 views); M476303 (152 views); M476304 (149 views); M476305 (155 views); M476306 (150 views); M476307 (150 views); M476308 (152 views); M476309 (150 views); M476310 (150 views); M476311 (152 views); M476312 (149 views); M476357 (7 views); M476353 (3 views); M476355 (3 views); M476327 (2 views); M476366 (2 views); M476325 (2 views); M476316 (3 views); M476317 (2 views); M476374 (3 views); M476339 (2 views); M476330 (2 views); M476356 (3 views); M476338 (2 views); M476334 (6 views); M476385 (2 views); M476383 (2 views); M476361 (3 views); M476365 (3 views); M476326 (3 views); M476363 (2 views); M476384 (3 views); M476341 (3 views); M476362 (2 views); M476378 (3 views); M476346 (2 views); M476375 (2 views); M476328 (3 views); M476387 (2 views); M476372 (2 views); M476350 (2 views); M476352 (2 views); M476340 (2 views); M476371 (3 views); M476377 (2 views); M476347 (2 views); M476332 (2 views); M476329 (2 views); M476319 (2 views); M476380 (2 views); M476349 (2 views); M476324 (2 views); M476370 (3 views); M476313 (2 views); M476360 (3 views); M476382 (2 views); M476323 (2 views); M476354 (2 views); M476369 (2 views); M476364 (2 views); M476335 (2 views); M476359 (2 views); M476321 (2 views); M476381 (1 view); M476351 (2 views); M476336 (3 views); M476442 (1 view); M476435 (1 view); M476409 (1 view); M476400 (2 views); M476419 (1 view); M476391 (1 view); M476422 (2 views); M476437 (1 view); M476424 (1 view); M476413 (2 views); M476427 (1 view); M476418 (1 view); M476389 (2 views); M476315 (2 views); M476432 (1 view); M476421 (1 view); M476446 (1 view); M476441 (1 view); M476410 (1 view); M476445 (1 view); M476431 (1 view); M476440 (1 view); M476438 (1 view); M476411 (1 view); M476426 (1 view); M476397 (1 view); M476439 (1 view); M476408 (2 views); M476390 (1 view); M476393 (1 view); M476444 (1 view); M476428 (2 views); M476430 (1 view); M476396 (1 view); M476436 (1 view); M476433 (1 view); M476416 (1 view); M476402 (1 view); M476420 (1 view); M476406 (1 view); M476392 (1 view); M476399 (1 view); M476314 (7 views); M476407 (2 views); M476423 (2 views); M476434 (1 view); M476388 (1 view); M476448 (1 view); M476443 (1 view); M476401 (1 view); M476337 (2 views); M476394 (2 views); M476379 (2 views); M476395 (1 view); M476425 (1 view); M476414 (2 views); M476429 (1 view); M476404 (1 view); M476368 (3 views); M476342 (2 views); M476322 (4 views); M476398 (1 view); M476447 (3 views); M476412 (1 view); M476403 (1 view); M476376 (6 views); M476415 (1 view); M476367 (2 views); M476320 (2 views); M476343 (3 views); M476417 (3 views); M476333 (2 views); M476318 (4 views); M476386 (7 views); M476348 (3 views); M476345 (2 views); M476373 (1 view); M476358 (2 views); M476344 (1 view); M476331 (1 view);
    Taxon list4111
    Documents list677
    Views for media list1171
    Specimen list79175
    Bibliography546




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project240
    Project downloads179
    Media downloads56M476088 (2 downloads); M476098 (1 download); M476119 (1 download); M476120 (1 download); M476128 (1 download); M476140 (1 download); M476174 (1 download); M476177 (1 download); M476184 (1 download); M476188 (1 download); M476189 (1 download); M476190 (1 download); M476191 (1 download); M476198 (1 download); M476208 (1 download); M476209 (1 download); M476216 (1 download); M476218 (1 download); M476219 (1 download); M476226 (1 download); M476227 (1 download); M476228 (1 download); M476229 (1 download); M476230 (1 download); M476248 (1 download); M476264 (1 download); M476266 (1 download); M476267 (1 download); M476268 (1 download); M476269 (1 download); M476270 (1 download); M476288 (1 download); M476292 (1 download); M476294 (1 download); M476302 (1 download); M476303 (1 download); M476304 (1 download); M476324 (1 download); M476335 (1 download); M476361 (1 download); M476365 (1 download); M476379 (1 download); M476383 (1 download); M476384 (1 download); M476385 (1 download); M476394 (1 download); M476395 (1 download); M476403 (1 download); M476405 (1 download); M476406 (1 download); M476408 (1 download); M476433 (1 download); M476436 (1 download); M476186 (1 download); M476111 (1 download);
    Document downloads5Raw landmarks (3 downloads); Metadata (2 downloads);