Article (Scientific journals)
What makes a great invader? Anatomical traits as predictors of locomotor performance and metabolic rate in an invasive frog
Padilla, Pablo; Herrel, Anthony; Denoël, Mathieu
2023In Journal of Experimental Biology, 226 (24), p. 246717
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Keywords :
invasive species; Pelophylax; metabolism; morphology; anatomy; inter-individual variation; physiology; respirometry; gluteus maximus; performance; endurance; jump force; invasive alien species; locomotion; marsh frogs; water frogs; Peolophylax ridibundus
Abstract :
[en] Invasive species are characterized by their ability to establish and spread in a new environment. In alien populations of anurans, dispersal and fitness-related traits such as endurance, burst performance, and metabolism are keys to their success. However, few studies have investigated inter-individual variation in these traits and more specifically have attempted to understand the drivers of variation in these traits. Associations of anatomical features may be excellent predictors of variation in performance and could be targets for selection or subject to trade-offs during invasions. In this study, we used marsh frogs (Pelophylax ridibundus), a species which has been introduced in many places outside its native range and which is now colonizing large areas of Western Europe. We first measured the inter-individual variation in resting metabolism, the time and distance they were able to jump until exhaustion, and their peak jump force, and then measured the mass of specific organs and lengths of body parts suspected to play a role in locomotion and metabolism. Among the 5000 bootstraps replicates on body size corrected variables, our statistical models most often selected the stomach (75.42%), gonads (71.46%), and the kidneys (67.26%) as predictors of inter-individual variation in metabolism and the gluteus maximus muscle (97.24%) mass was the most often selected predictor of jump force. However, endurance was poorly associated with the anatomical traits (R²distance = 0.42, R²time = 0.37). These findings suggest that selection on these predictors may lead to physiological changes that may affect the colonization, establishment, and dispersal of these frogs.
Research center :
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège [BE]
Disciplines :
Zoology
Aquatic sciences & oceanology
Anatomy (cytology, histology, embryology...) & physiology
Author, co-author :
Padilla, Pablo  ;  Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS) ; Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Laboratoire d'Écologie et de Conservation des Amphibiens (LECA) ; UMR 7179 C.N.R.S/M.N.H.N, Département Adaptations du Vivant, Paris, France
Herrel, Anthony;  UMR 7179 C.N.R.S/M.N.H.N, Département Adaptations du Vivant, Paris, France ; Evolutionary Morphology of Vertebrates, Ghent University, Belgium ; Department of Biology, University of Antwerp, Wilrijk, Belgium ; Naturhistorisches Museum Bern, Switzerland
Denoël, Mathieu  ;  Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS) ; Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Laboratoire d'Écologie et de Conservation des Amphibiens (LECA)
Language :
English
Title :
What makes a great invader? Anatomical traits as predictors of locomotor performance and metabolic rate in an invasive frog
Publication date :
December 2023
Journal title :
Journal of Experimental Biology
ISSN :
0022-0949
eISSN :
1477-9145
Publisher :
The Company of Biologists, United Kingdom
Volume :
226
Issue :
24
Pages :
jeb246717
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
Funding number :
PDR T 0070 19
Available on ORBi :
since 16 November 2023

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