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Journal of ZoologyVolume 320, Issue 2, June 2023, Pages 96-107

Inability of yellow-bellied toad to accelerate metamorphosis in desiccation conditions(Article)(Open Access)

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  • aDepartment of Evolutionary Biology, Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
  • bFaculty of Biology, Institute of Zoology, University of Belgrade, Belgrade, Serbia

Abstract

Many amphibian species inhabit temporary aquatic habitats for reproduction to maximize larval growth under favorable conditions, but accelerate developmental rate to rapidly undergo metamorphosis under stress conditions when high desiccation risk exists. Desiccation affects different aspects of amphibian biology such as developmental rate, body size and mass, and growth rate. We studied the responses of yellow-bellied toad (Bombina variegata) to different water levels (constant high, decreasing water level, and constant low water level) in the laboratory using individuals collected from natural ponds. To assess the effects of experimental pond drying, we investigated the effects on life-history and morphological traits at metamorphosis as well as carry-over effects on post-metamorphic traits and locomotor performances. We found that B. variegata cannot accelerate developmental rate in response to pond drying. The metamorphs from decreasing and constant low water levels had similar size, mass, growth rate and body condition indices at metamorphosis, and all these traits were lower than in the constant high water level treatment. These changes in life-history traits at metamorphosis did not affect tail shape although they had carry-over effects on life-history and morphological traits after metamorphosis. Post-metamorphic individuals reared in desiccation treatments had similar but smaller lengths of femur and tibiofibula, but these changes did not have negative consequences on jumping performances. We show that responsiveness to pond drying of B. variegata is probably associated with maximum growth rate in favorable conditions and inability to increase growth rate as well as developmental rate in desiccation conditions. This resulted in prolonged developmental time to reach the minimum size and mass for metamorphosis. © 2023 Zoological Society of London.

Author keywords

Bombina variegataclimate changedesiccationdevelopmental ratemetamorphosisphenotypic plasticityphenotypic variationtrade-off

Indexed keywords

GEOBASE Subject Index:body conditionbody sizeclimate changedesiccationdevelopmental stagemetamorphosisphenotypic plasticitytoadtrade-offwater level

Funding details

Funding sponsor Funding number Acronym
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja451‐03‐68/2022‐14/200007MPNTR
  • 1

    This work was supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia (Grant No. 451‐03‐68/2022‐14/200007).

  • ISSN: 09528369
  • CODEN: JOZOE
  • Source Type: Journal
  • Original language: English
  • DOI: 10.1111/jzo.13056
  • Document Type: Article
  • Publisher: John Wiley and Sons Inc

  Kijanović, A.; Department of Evolutionary Biology, Institute for Biological Research ‘Siniša Stanković’, National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, Belgrade, Serbia;
  Tomašević Kolarov, N.; Department of Evolutionary Biology, Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia;
© Copyright 2023 Elsevier B.V., All rights reserved.

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Kijanović, A. , Vukov, T. , Mirč, M.
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(2024) Journal of Experimental Zoology Part A: Ecological and Integrative Physiology
View details of all 3 citations
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