Same but different: aquatic prey capture in paedomorphic and metamorphic Alpine newts

Zoological Letters
Egon Heiss, Julia Grell

Abstract

Paedomorphosis describes the retention of larval characters in adult stages and is widespread amongst salamanders. Salamandrid newts exhibit facultative paedomorphosis, where paedomorphic and metamorphic adult forms coexist in the same population. Previous studies have shown that prey capture kinematics do not differ between paedomorphic and metamorphosed ambystomatid salamanders, despite diverging morphology and prey capture performance. It remained unclear, however, whether the stereotypy of prey capture kinematics across morphotypes is restricted to ambystomatids, or can be found in other salamander groups too. Here, we performed biplanar high-speed-recordings of the prey capture behavior in paedomorphic and metamorphic salamandrid newts and only found minor kinematic differences across morphotypes, suggesting that stereotypy across morphotypes is a more general feature within salamanders. We then compared anatomy of skull and hyobranchial skeleton, along with the physiological cross sectional area (PCSA) of the rectus cervicis muscle, the main muscle empowering suction feeding. Besides the overall morphological differences of the feeding apparatus, the PCSA of the rectus cervicis also differs significantly between morphotyp...Continue Reading

References

Oct 1, 1975·The Journal of Experimental Zoology·R K Josephson
Jan 1, 1992·Brain, Behavior and Evolution·S M Reilly, G V Lauder
Sep 1, 1985·Journal of Morphology·G V Lauder, H B Shaffer
May 1, 1983·The Journal of Physiology·R J MaughanJ Weir
Mar 3, 2004·Die Naturwissenschaften·Mathieu DenoëlPierre Joly
Feb 19, 2008·The Journal of Experimental Biology·Christopher D MarshallChristian Lydersen
Sep 23, 2008·The Journal of Experimental Biology·Cheryl D Wilga, Christopher P Sanford
Jun 1, 2010·The Journal of Experimental Biology·Carrie A Carreño, Kiisa C Nishikawa
May 21, 2013·Journal of the American Veterinary Medical Association·Link WelbornUNKNOWN AVMA Workforce Advisory Group
Oct 19, 2013·Journal of Morphology·Thomas KleinteichAlexander Haas
Jul 8, 2016·Scientific Reports·Sam Van Wassenbergh, Egon Heiss
Apr 23, 2017·Scientific Reports·Egon HeissSam Van Wassenbergh
May 27, 2017·Journal of Morphology·David CundallFrances Irish
Jan 1, 1985·Evolution; International Journal of Organic Evolution·H Bradley Shaffer, George V Lauder
Sep 1, 1990·Evolution; International Journal of Organic Evolution·Reid N HarrisJohn E Fauth
May 31, 2018·The Journal of Experimental Biology·Manfred R EnstippDavid Grémillet
Oct 1, 1975·Journal of Morphology·John H Larsen, Dan J Guthrie
Mar 6, 2019·The Journal of Experimental Biology·Egon HeissNicolai Konow

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Citations

Jun 24, 2020·Nature Ecology & Evolution·Anne-Claire FabreAnjali Goswami

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Methods Mentioned

BETA
X-ray

Software Mentioned

Inkscape
Amira Material Statistics
Simi Motion
AMIRA
SPSS Statistics

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