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Schmidt R, Zummach C, Sinai N, Sabino‐Pinto J, Künzel S, Dausmann KH, Ruthsatz K. Physiological responses to a changing winter climate in an early spring-breeding amphibian. Ecol Evol 2024; 14:e70042. [PMID: 39050662 PMCID: PMC11267634 DOI: 10.1002/ece3.70042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 06/28/2024] [Accepted: 07/08/2024] [Indexed: 07/27/2024] Open
Abstract
Climate change is swiftly altering environmental winter conditions, leading to significant ecological impacts such as phenological shifts in many species. As a result, animals might face physiological mismatches due to longer or earlier activity periods and are at risk of being exposed to late spring freezes. Our study points for the first time to the complex physiological challenges that amphibians face as a result of changing thermal conditions due to winter climate change. We investigated the physiological responses to a period of warmer winter days and sudden spring freeze in the common toad (Bufo bufo) by acclimating them to 4°C or 8°C for 48 h or exposing them to 4°C or -2°C for 6 h, respectively. We assessed the daily energy demands, determined body condition and cold tolerance, explored the molecular responses to freezing through hepatic tissue transcriptome analysis, and measured blood glucose levels. Toads acclimated to higher temperatures showed a higher daily energy expenditure and a reduced cold tolerance suggesting faster depletion of energy stores and the loss of winter acclimation during warmer winters. Blood sugar levels were higher in frozen toads indicating the mobilization of cryoprotective glucose with freezing which was further supported by changed patterns in proteins related to glucose metabolism. Overall, our results emphasize that increased thermal variability incurs physiological costs that may reduce energy reserves and thus affect amphibian health and survival. This might pose a serious threat to breeding adults and may have subsequent effects at the population level.
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Affiliation(s)
- Robin Schmidt
- Zoological InstituteTechnische Universität BraunschweigBraunschweigGermany
| | - Cecile Zummach
- Institute of Cell and System BiologyUniversität HamburgHamburgGermany
| | - Noa Sinai
- Institute of Cell and System BiologyUniversität HamburgHamburgGermany
| | - Joana Sabino‐Pinto
- Faculty of Science and Engineering, Groningen Institute for Evolutionary Life SciencesUniversity of GroningenGroningenthe Netherlands
| | - Sven Künzel
- Max Planck Institute for Evolutionary BiologyPloenGermany
| | | | - Katharina Ruthsatz
- Zoological InstituteTechnische Universität BraunschweigBraunschweigGermany
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Ruthsatz K, Rico-Millan R, Eterovick PC, Gomez-Mestre I. Exploring water-borne corticosterone collection as a non-invasive tool in amphibian conservation physiology: benefits, limitations and future perspectives. CONSERVATION PHYSIOLOGY 2023; 11:coad070. [PMID: 37663928 PMCID: PMC10472495 DOI: 10.1093/conphys/coad070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 08/03/2023] [Accepted: 08/26/2023] [Indexed: 09/05/2023]
Abstract
Global change exposes wildlife to a variety of environmental stressors and is affecting biodiversity worldwide, with amphibian population declines being at the forefront of the global biodiversity crisis. The use of non-invasive methods to determine the physiological state in response to environmental stressors is therefore an important advance in the field of conservation physiology. The glucocorticoid hormone corticosterone (CORT) is one useful biomarker to assess physiological stress in amphibians, and sampling water-borne (WB) CORT is a novel, non-invasive collection technique. Here, we tested whether WB CORT can serve as a valid proxy of organismal levels of CORT in larvae of the common frog (Rana temporaria). We evaluated the association between tissue and WB CORT levels sampled from the same individuals across ontogenetic stages, ranging from newly hatched larvae to froglets at 10 days after metamorphosis. We also investigated how both tissue and WB CORT change throughout ontogeny. We found that WB CORT is a valid method in pro-metamorphic larvae as values for both methods were highly correlated. In contrast, there was no correlation between tissue and WB CORT in newly hatched, pre-metamorphic larvae, metamorphs or post-metamorphic froglets probably due to ontogenetic changes in respiratory and skin morphology and physiology affecting the transdermal CORT release. Both collection methods consistently revealed a non-linear pattern of ontogenetic change in CORT with a peak at metamorphic climax. Thus, our results indicate that WB CORT sampling is a promising, non-invasive conservation tool for studies on late-stage amphibian larvae. However, we suggest considering that different contexts might affect the reliability of WB CORT and consequently urge future studies to validate this method whenever it is used in new approaches. We conclude proposing some recommendations and perspectives on the use of WB CORT that will aid in broadening its application as a non-invasive tool in amphibian conservation physiology.
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Affiliation(s)
- Katharina Ruthsatz
- Zoological Institute, Technische Universität Braunschweig, Mendelssohnstraße 4, 38106 Braunschweig, Germany
| | - Rafael Rico-Millan
- Ecology, Evolution, and Development Group, Doñana Biological Station – CSIC, Calle Américo Vespucio 26, 41092 Seville, Spain
| | - Paula Cabral Eterovick
- Zoological Institute, Technische Universität Braunschweig, Mendelssohnstraße 4, 38106 Braunschweig, Germany
| | - Ivan Gomez-Mestre
- Ecology, Evolution, and Development Group, Doñana Biological Station – CSIC, Calle Américo Vespucio 26, 41092 Seville, Spain
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3
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Zamora-Camacho FJ, Burraco P, Zambrano-Fernández S, Aragón P. Ammonium effects on oxidative stress, telomere length, and locomotion across life stages of an anuran from habitats with contrasting land-use histories. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 862:160924. [PMID: 36526187 DOI: 10.1016/j.scitotenv.2022.160924] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/02/2022] [Accepted: 12/10/2022] [Indexed: 06/17/2023]
Abstract
Understanding the mechanistic implications behind wildlife responses to global changes is a central topic in eco-evolutionary research. In particular, anthropic pollution is known to impact wild populations across the globe, which may have even stronger consequences for species with complex life cycles. Among vertebrates, amphibians represent a paradigmatic example of metamorphosis, and their characteristics make them highly vulnerable to pollution. Here, we tested for differences in the redox status, telomere length, and locomotor performance across life stages of green frogs (Pelophylax perezi) from agrosystem and natural habitats, both constitutively and in response to an experimental ammonium exposure (10 mg/L). We found that larvae from the agrosystem constitutively showed an enhanced redox status (better antioxidant balance against H2O2, lower lipid peroxidation) but shorter telomeres as compared to larvae from the natural environment. The larval redox response to ammonium was, overall, similar in both habitats. In contrast, after metamorphosis, the redox status of individuals from the natural habitat seemed to cope better with ammonium exposure (denoted by lower lipid peroxidation), and differences between habitats in telomere length were no longer present. Intriguingly, while the swimming performance of larvae did not correlate with individual's physiology, metamorphs with lower glutathione reductase activity and longer telomeres had a better jumping performance. This may suggest that locomotor performance is both traded off with the production of reactive oxygen species and potentiated directly by longer telomeres or indirectly by the mechanisms that buffer their shortening. Overall, our study suggests that contrasting land-use histories can drive divergence in physiological pathways linked to individual health and lifespan. Since this pattern was life-stage dependent, divergent habitat conditions can have contrasting implications across the ontogenetic development of species with complex life cycles.
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Affiliation(s)
- Francisco Javier Zamora-Camacho
- Department of Biogeography and Global Change, Museo Nacional de Ciencias Naturales (MNCN-CSIC), C/José Gutiérrez Abascal 2, 28006 Madrid, Spain.
| | - Pablo Burraco
- Department of Wetland Ecology, Doñana Biological Station, Avda. Américo Vespucio 26, 41092 Seville, Spain
| | | | - Pedro Aragón
- Department of Biogeography and Global Change, Museo Nacional de Ciencias Naturales (MNCN-CSIC), C/José Gutiérrez Abascal 2, 28006 Madrid, Spain
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4
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Ruthsatz K, Dausmann KH, Peck MA, Glos J. Thermal tolerance and acclimation capacity in the European common frog (Rana temporaria) change throughout ontogeny. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART A, ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY 2022; 337:477-490. [PMID: 35226414 DOI: 10.1002/jez.2582] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 01/04/2022] [Accepted: 01/28/2022] [Indexed: 12/23/2022]
Abstract
Phenotypic plasticity may allow ectotherms with complex life histories such as amphibians to cope with climate-driven changes in their environment. Plasticity in thermal tolerance (i.e., shifts of thermal limits via acclimation to higher temperatures) has been proposed as a mechanism to cope with warming and extreme thermal events. However, thermal tolerance and, hence, acclimation capacity, is known to vary with life stage. Using the common frog (Rana temporaria) as a model species, we measured the capacity to adjust lower (CTmin ) and upper (CTmax ) critical thermal limits at different acclimation temperatures. We calculated the acclimation response ratio as a metric to assess the stage-specific acclimation capacity at each of seven consecutive ontogenetic stages and tested whether acclimation capacity was influenced by body mass and/or age. We further examined how acclimation temperature, body mass, age, and ontogenetic stage influenced CTmin and CTmax . In the temperate population of R. temporaria that we studied, thermal tolerance and acclimation capacity were affected by the ontogenetic stage. However, acclimation capacity at both thermal limits was well below 100% at all life stages tested. The lowest and highest acclimation capacity in thermal limits was observed in young and late larvae, respectively. The relatively low acclimation capacity of young larvae highlights a clear risk of amphibian populations to ongoing climate change. Ignoring stage-specific differences in thermal physiology may drastically underestimate the climate vulnerability of species, which will hamper successful conservation actions.
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Affiliation(s)
- Katharina Ruthsatz
- Zoological Institute, Technische Universität Braunschweig, Braunschweig, Germany.,Institute of Zoology, Universität Hamburg, Hamburg, Germany
| | | | - Myron A Peck
- Department of Coastal Systems, Royal Netherlands Institute for Sea Research, Den Burg (Texel), The Netherlands
| | - Julian Glos
- Institute of Zoology, Universität Hamburg, Hamburg, Germany
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5
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Burraco P, Rendón MA, Díaz‐Paniagua C, Gomez‐Mestre I. Maintenance of phenotypic plasticity is linked to oxidative stress in spadefoot toad larvae. OIKOS 2022. [DOI: 10.1111/oik.09078] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Pablo Burraco
- Doñana Biological Station (CSIC) Seville Spain
- Inst. of Biodiversity, Animal Health and Comparative Medicine, Univ. of Glasgow Glasgow UK
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6
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Radovanović TB, Gavrilović BR, Petrović TG, Despotović SG, Gavrić JP, Kijanović A, Mirč M, Tomašević Kolarov N, Faggio C, Prokić MD. Impact of desiccation pre-exposure on deltamethrin-induced oxidative stress in Bombina variegata juveniles. Comp Biochem Physiol C Toxicol Pharmacol 2021; 250:109191. [PMID: 34536572 DOI: 10.1016/j.cbpc.2021.109191] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 08/25/2021] [Accepted: 09/11/2021] [Indexed: 12/27/2022]
Abstract
Global warming represents a severe threat to existing ecosystems, especially for anuran tadpoles who encounter significant fluctuations in their habitats. Decreasing water levels in permanent and temporary water bodies is a significant risk for larval survival or fitness. On the other hand, the natural environment of amphibians is extremely polluted by various xenobiotics. This study evaluated how pre-exposure of Bombina variegata tadpoles to chronic environmental stress (desiccation) modulates the biochemical response of juvenile individuals to following acute chemical stressor (pesticide deltamethrin). Our results demonstrated that individually applied pesticide changed the thiol and lipid status of the treated juveniles but animals subjected solely to desiccation pressure were more tolerant to free radicals and showed no induction of lipid peroxidation. Comparison of juveniles exposed to deltamethrin revealed that desiccation pretreatment during the larval stage of development modified cellular protection in the juveniles. Higher activities of CAT, GSH-Px and GR were recorded in the pre-exposed group, as well as a lower degree of lipid peroxidation relative to the group that was not pre-exposed to low water stress. Pre-desiccated groups displayed the greatest range of coordination of investigated antioxidant parameters, supported by Pearson's correlations. Activation of the GSH-redox system is a significant marker in juveniles against stress caused by desiccation and a chemical stressor. The stressful environment experienced during tadpole development produced an adaptive reaction to subsequent exposure to another stressor in juveniles. To develop relevant management and conservation strategies, more studies of the interactive effects of environmental and chemical stressors are necessary.
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Affiliation(s)
- Tijana B Radovanović
- Department of Physiology, Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia.
| | - Branka R Gavrilović
- Department of Physiology, Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Tamara G Petrović
- Department of Physiology, Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Svetlana G Despotović
- Department of Physiology, Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Jelena P Gavrić
- Department of Physiology, Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Ana Kijanović
- Department of Evolutionary Biology, Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Marko Mirč
- Department of Evolutionary Biology, Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Nataša Tomašević Kolarov
- Department of Evolutionary Biology, Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Caterina Faggio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Marko D Prokić
- Department of Physiology, Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
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7
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Jonsson B, Jonsson N. Differences in growth between offspring of anadromous and freshwater brown trout Salmo trutta. JOURNAL OF FISH BIOLOGY 2021; 99:18-24. [PMID: 33534141 DOI: 10.1111/jfb.14693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 01/19/2021] [Accepted: 01/02/2021] [Indexed: 06/12/2023]
Abstract
In this study, individual growth of juvenile offspring of anadromous and freshwater resident brown trout Salmo trutta and crosses between the two from the River Imsa, Norway, was estimated. The juveniles were incubated until hatching at two temperatures (±S.D.), either 4.4 ± 1.5°C or 7.1 ± 0.6°C. Growth rate was estimated for 22 days in August-September when the fish on average were c. 8 g in wet mass, and the estimates were standardized to 1 g fish dry mass. Offspring of anadromous S. trutta grew better at both 15 and 18°C than offspring of freshwater resident S. trutta or offspring of crosses between the two S. trutta types. This difference appears not to result from a maternal effect because anadromous S. trutta grew better than the hybrids with anadromous mothers. Instead, this appears to be an inherited difference between the anadromous and the freshwater resident fish lending support to the hypothesis that anadromous and freshwater resident S. trutta in this river differ in genetic expression. Egg incubation temperature of S. trutta appeared not to influence the later growth as reported earlier from the studies of Atlantic salmon Salmo salar.
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Affiliation(s)
- Bror Jonsson
- Norwegian Institute for Nature Research, Oslo, Norway
| | - Nina Jonsson
- Norwegian Institute for Nature Research, Oslo, Norway
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Denver RJ. Stress hormones mediate developmental plasticity in vertebrates with complex life cycles. Neurobiol Stress 2021; 14:100301. [PMID: 33614863 PMCID: PMC7879041 DOI: 10.1016/j.ynstr.2021.100301] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 01/04/2021] [Accepted: 01/25/2021] [Indexed: 12/24/2022] Open
Abstract
The environment experienced by developing organisms can shape the timing and character of developmental processes, generating different phenotypes from the same genotype, each with different probabilities of survival and performance as adults. Chordates have two basic modes of development, indirect and direct. Species with indirect development, which includes most fishes and amphibians, have a complex life cycle with a free-swimming larva that is typically a growth stage, followed by a metamorphosis into the adult form. Species with direct development, which is an evolutionarily derived developmental mode, develop directly from embryo to the juvenile without an intervening larval stage. Among the best studied species with complex life cycles are the amphibians, especially the anurans (frogs and toads). Amphibian tadpoles are exposed to diverse biotic and abiotic factors in their developmental habitat. They have extensive capacity for developmental plasticity, which can lead to the expression of different, adaptive morphologies as tadpoles (polyphenism), variation in the timing of and size at metamorphosis, and carry-over effects on the phenotype of the juvenile/adult. The neuroendocrine stress axis plays a pivotal role in mediating environmental effects on amphibian development. Before initiating metamorphosis, if tadpoles are exposed to predators they upregulate production of the stress hormone corticosterone (CORT), which acts directly on the tail to cause it to grow, thereby increasing escape performance. When tadpoles reach a minimum body size to initiate metamorphosis they can vary the timing of transformation in relation to growth opportunity or mortality risk in the larval habitat. They do this by modulating the production of thyroid hormone (TH), the primary inducer of metamorphosis, and CORT, which synergizes with TH to promote tissue transformation. Hypophysiotropic neurons that release the stress neurohormone corticotropin-releasing factor (CRF) are activated in response to environmental stress (e.g., pond drying, food restriction, etc.), and CRF accelerates metamorphosis by directly inducing secretion of pituitary thyrotropin and corticotropin, thereby increasing secretion of TH and CORT. Although activation of the neuroendocrine stress axis promotes immediate survival in a deteriorating larval habitat, costs may be incurred such as reduced tadpole growth and size at metamorphosis. Small size at transformation can impair performance of the adult, reducing probability of survival in the terrestrial habitat, or fecundity. Furthermore, elevations in CORT in the tadpole caused by environmental stressors cause long term, stable changes in neuroendocrine function, behavior and physiology of the adult, which can affect fitness. Comparative studies show that the roles of stress hormones in developmental plasticity are conserved across vertebrate taxa including humans.
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Affiliation(s)
- Robert J. Denver
- Department of Molecular, Cellular and Developmental Biology, and Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, 48109-1085, USA
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9
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Petrović TG, Kijanović A, Kolarov Tomašević N, Gavrić JP, Despotović SG, Gavrilović BR, Radovanović TB, Vukov T, Faggio C, Prokić MD. Effects of Desiccation on Metamorphic Climax in Bombina variegata: Changes in Levels and Patterns of Oxidative Stress Parameters. Animals (Basel) 2021; 11:ani11040953. [PMID: 33805554 PMCID: PMC8066544 DOI: 10.3390/ani11040953] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/24/2021] [Accepted: 03/24/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Global warming alters patterns of precipitation and drought, which are important factors in the survival of amphibian populations. Metamorphosis is affected by environmental changes; this is especially true of metamorphic climax, the crucial stage of amphibian development that is accompanied by significant morphological, physiological and behavioral adaptations necessary for the transition to a terrestrial habitat. This study investigated naturally occurring changes in the cellular oxidative status (antioxidant system and oxidative damage) of yellow-bellied toad larvae during this phase, and how exposure to exogenous factors such as desiccation affected them. Our results revealed clear changes in the antioxidant system’s (AOS) response and the levels of oxidative damage during metamorphic climax, with the highest response and damage observed at the end stage. Decreasing water levels during larval development altered the components of the AOS and increased oxidative damage, resulting in increased oxidative stress. The knowledge gained from this study could contribute to a better understanding of the oxidative stress that larvae experience during this critical stage of development, and the consequences of global warming—such as water loss—on amphibians. Abstract In this paper, we examined how the oxidative status (antioxidant system and oxidative damage) of Bombina variegata larvae changed during the metamorphic climax (Gosner stages: 42—beginning, 44—middle and 46—end) and compared the patterns and levels of oxidative stress parameters between individuals developing under constant water availability (control) and those developing under decreasing water availability (desiccation group). Our results revealed that larvae developing under decreasing water availability exhibited increased oxidative damage in the middle and end stages. This was followed by lower levels of glutathione in stages 44 and 46, as well as lower values of catalase, glutathione peroxidase, glutathione S-transferase and sulfhydryl groups in stage 46 (all in relation to control animals). Comparison between stages 42, 44 and 46 within treatments showed that individuals in the last stage demonstrated the highest intensities of lipid oxidative damage in both the control and desiccation groups. As for the parameters of the antioxidant system, control individuals displayed greater variety in response to changes induced by metamorphic climax than individuals exposed to desiccation treatment. The overall decrease in water availability during development led to increased oxidative stress and modifications in the pattern of AOS response to changes induced by metamorphic climax in larvae of B. variegata.
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Affiliation(s)
- Tamara G. Petrović
- Department of Physiology, Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (T.G.P.); (J.P.G.); (S.G.D.); (B.R.G.); (T.B.R.); (M.D.P.)
| | - Ana Kijanović
- Department of Evolutionary Biology, Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (A.K.); (N.K.T.); (T.V.)
| | - Nataša Kolarov Tomašević
- Department of Evolutionary Biology, Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (A.K.); (N.K.T.); (T.V.)
| | - Jelena P. Gavrić
- Department of Physiology, Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (T.G.P.); (J.P.G.); (S.G.D.); (B.R.G.); (T.B.R.); (M.D.P.)
| | - Svetlana G. Despotović
- Department of Physiology, Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (T.G.P.); (J.P.G.); (S.G.D.); (B.R.G.); (T.B.R.); (M.D.P.)
| | - Branka R. Gavrilović
- Department of Physiology, Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (T.G.P.); (J.P.G.); (S.G.D.); (B.R.G.); (T.B.R.); (M.D.P.)
| | - Tijana B. Radovanović
- Department of Physiology, Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (T.G.P.); (J.P.G.); (S.G.D.); (B.R.G.); (T.B.R.); (M.D.P.)
| | - Tanja Vukov
- Department of Evolutionary Biology, Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (A.K.); (N.K.T.); (T.V.)
| | - Caterina Faggio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy
- Correspondence:
| | - Marko D. Prokić
- Department of Physiology, Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (T.G.P.); (J.P.G.); (S.G.D.); (B.R.G.); (T.B.R.); (M.D.P.)
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10
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Hyeun-Ji L, Rendón MÁ, Liedtke HC, Gomez-Mestre I. Shifts in the developmental rate of spadefoot toad larvae cause decreased complexity of post-metamorphic pigmentation patterns. Sci Rep 2020; 10:19624. [PMID: 33184389 PMCID: PMC7665075 DOI: 10.1038/s41598-020-76578-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/27/2020] [Indexed: 11/18/2022] Open
Abstract
Amphibian larvae are plastic organisms that can adjust their growth and developmental rates to local environmental conditions. The consequences of such developmental alterations have been studied in detail, both at the phenotypic and physiological levels. While largely unknown, it is of great importance to assess how developmental alterations affect the pigmentation pattern of the resulting metamorphs, because pigmentation is relevant for communication, mate choice, and camouflage and hence influences the overall fitness of the toads. Here we quantify the variation in several aspects of the pigmentation pattern of juvenile spadefoot toads experimentally induced to accelerate their larval development in response to decreased water level. It is known that induced developmental acceleration comes at the cost of reduced size at metamorphosis, higher metabolic rate, and increased oxidative stress. In this study, we show that spadefoot toads undergoing developmental acceleration metamorphosed with a less complex, more homogeneous, darker dorsal pattern consisting of continuous blotches, compared to the more contrasted pattern with segregated blotches and higher fractal dimension in normally developing individuals, and at a smaller size. We also observed a marked effect of population of origin in the complexity of the pigmentation pattern. Complexity of the post-metamorphic dorsal pigmentation could therefore be linked to pre-metamorphic larval growth and development.
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Affiliation(s)
- Lee Hyeun-Ji
- Ecology, Evolution, and Development Group, Doñana Biological Station, Consejo Superior de Investigaciones Científicas, 41092, Seville, Spain
- Department of Wetland Ecology, Doñana Biological Station, Consejo Superior de Investigaciones Científicas, 41092, Seville, Spain
| | - Miguel Ángel Rendón
- Department of Wetland Ecology, Doñana Biological Station, Consejo Superior de Investigaciones Científicas, 41092, Seville, Spain
| | - Hans Christoph Liedtke
- Ecology, Evolution, and Development Group, Doñana Biological Station, Consejo Superior de Investigaciones Científicas, 41092, Seville, Spain
- Department of Wetland Ecology, Doñana Biological Station, Consejo Superior de Investigaciones Científicas, 41092, Seville, Spain
| | - Ivan Gomez-Mestre
- Ecology, Evolution, and Development Group, Doñana Biological Station, Consejo Superior de Investigaciones Científicas, 41092, Seville, Spain.
- Department of Wetland Ecology, Doñana Biological Station, Consejo Superior de Investigaciones Científicas, 41092, Seville, Spain.
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11
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Burraco P, Laurila A, Orizaola G. Limits to compensatory responses to altered phenology in amphibian larvae. OIKOS 2020. [DOI: 10.1111/oik.07919] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pablo Burraco
- Inst. of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, Univ. of Glasgow Glasgow UK
| | - Anssi Laurila
- Animal Ecology, Dept. Ecology and Genetics, Evolutionary Biology Centre, Uppsala Univ. Uppsala Sweden
| | - Germán Orizaola
- Animal Ecology, Dept. Ecology and Genetics, Evolutionary Biology Centre, Uppsala Univ. Uppsala Sweden
- IMIB‐Biodiversity Research Inst., Univ. Oviedo‐CSIC‐Principado Asturias Mieres‐Asturias Spain
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12
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Burraco P, Comas M, Reguera S, Zamora-Camacho FJ, Moreno-Rueda G. Telomere length mirrors age structure along a 2200-m altitudinal gradient in a Mediterranean lizard. Comp Biochem Physiol A Mol Integr Physiol 2020; 247:110741. [DOI: 10.1016/j.cbpa.2020.110741] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/18/2020] [Accepted: 06/01/2020] [Indexed: 12/27/2022]
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13
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Sapozhnikova YP, Koroleva AG, Yakhnenko VM, Tyagun ML, Glyzina OY, Coffin AB, Makarov MM, Shagun AN, Kulikov VA, Gasarov PV, Kirilchik SV, Klimenkov IV, Sudakov NP, Anoshko PN, Kurashova NA, Sukhanova LV. Molecular and cellular responses to long-term sound exposure in peled (Coregonus peled). THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2020; 148:895. [PMID: 32873010 DOI: 10.1121/10.0001674] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
This research examined the impacts of acoustic stress in peled (Coregonus peled Gmelin, 1788), a species commonly cultivated in Russia. This study presents a comparative analysis of the macula sacculi and otoliths, as well as primary hematological and secondary telomere stress responses, in control and sound-exposed peled. The authors measured the effects of long-term (up to 18 days) exposure to a 300 Hz tone at mean sound pressure levels of 176-186 dB re 1 μPa (SPLpk-pk); the frequency and intensity were selected to approximate loud acoustic environments associated with cleaning equipment in aquaculture settings. Acoustic exposure resulted in ultrastructure changes to otoliths, morphological damage to sensory hair cells of the macula sacculi, and a gradual decrease in the number of functionally active mitochondria in the red blood cells but no changes to telomeres. Changes were apparent following at least ten days of acoustic exposure. These data suggest that acoustic exposure found in some aquaculture settings could cause stress responses and auditory damage to peled and, potentially, other commercially important species. Reducing sound levels in fish rearing facilities could contribute to the formation of effective aquaculture practices that mitigate noise-induced stress in fishes.
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Affiliation(s)
- Yulia P Sapozhnikova
- Laboratory of Ichthyology, Limnological Institute Siberian Branch of the Russian Academy of Sciences, 3 Ulan-Batorskaya, Irkutsk 664033, Russia
| | - Anastasia G Koroleva
- Laboratory of Ichthyology, Limnological Institute Siberian Branch of the Russian Academy of Sciences, 3 Ulan-Batorskaya, Irkutsk 664033, Russia
| | - Vera M Yakhnenko
- Laboratory of Ichthyology, Limnological Institute Siberian Branch of the Russian Academy of Sciences, 3 Ulan-Batorskaya, Irkutsk 664033, Russia
| | - Marina L Tyagun
- Laboratory of Ichthyology, Limnological Institute Siberian Branch of the Russian Academy of Sciences, 3 Ulan-Batorskaya, Irkutsk 664033, Russia
| | - Olga Yu Glyzina
- Experimental Hydrobiology Group, Limnological Institute Siberian Branch of the Russian Academy of Sciences, 3 Ulan-Batorskaya, Irkutsk 664033, Russia
| | - Allison B Coffin
- Department of Integrative Physiology and Neuroscience, Washington State University Vancouver, 14204 Northeast Salmon Creek Avenue, Vancouver, Washington 98686, USA
| | - Mikhail M Makarov
- Laboratory of Interdisciplinary Environmental and Economic Research and Technology, Limnological Institute Siberian Branch of the Russian Academy of Sciences, 3 Ulan-Batorskaya, Irkutsk 664033, Russia
| | - Artem N Shagun
- Laboratory of General and Engineering Seismology and Seismogeology, Institute of the Earth's Crust Siberian Branch of the Russian Academy of Sciences, 128 Lermontova Street, Irkutsk 664033, Russia
| | - Viktor A Kulikov
- Center for Computational and Data-Intensive Science and Engineering, Skolkovo Institute of Science and Technology, 1 Nobel Street, Moscow 143026, Russia
| | - Polikarp V Gasarov
- Department of Plant Physiology, Cell Biology, and Genetics, Irkutsk State University, 1 K. Marksa Street, Irkutsk 664003, Russia
| | - Sergey V Kirilchik
- Laboratory of Ichthyology, Limnological Institute Siberian Branch of the Russian Academy of Sciences, 3 Ulan-Batorskaya, Irkutsk 664033, Russia
| | - Igor V Klimenkov
- Department of Cell Ultrastructure, Limnological Institute Siberian Branch of the Russian Academy of Sciences, 3 Ulan-Batorskaya, Irkutsk 664033, Russia
| | - Nikolay P Sudakov
- Department of Cell Ultrastructure, Limnological Institute Siberian Branch of the Russian Academy of Sciences, 3 Ulan-Batorskaya, Irkutsk 664033, Russia
| | - Pavel N Anoshko
- Laboratory of Interdisciplinary Environmental and Economic Research and Technology, Limnological Institute Siberian Branch of the Russian Academy of Sciences, 3 Ulan-Batorskaya, Irkutsk 664033, Russia
| | - Nadezhda A Kurashova
- Scientific Center of Family Health Problems and Human Reproduction, Irkutsk 664003, Russia
| | - Lyubov V Sukhanova
- Laboratory of Ichthyology, Limnological Institute Siberian Branch of the Russian Academy of Sciences, 3 Ulan-Batorskaya, Irkutsk 664033, Russia
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14
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Sánchez-Montes G, Martínez-Solano Í, Díaz-Paniagua C, Vilches A, Ariño AH, Gomez-Mestre I. Telomere attrition with age in a wild amphibian population. Biol Lett 2020; 16:20200168. [PMID: 32673551 PMCID: PMC7423040 DOI: 10.1098/rsbl.2020.0168] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 06/16/2020] [Indexed: 12/16/2022] Open
Abstract
Telomere shortening with age has been documented in many organisms, but few studies have reported telomere length measurements in amphibians, and no information is available for growth after metamorphosis, nor in wild populations. We provide both cross-sectional and longitudinal evidence of net telomere attrition with age in a wild amphibian population of natterjack toads (Epidalea calamita). Based on age-estimation by skeletochronology and qPCR telomere length measurements in the framework of an individual-based monitoring programme, we confirmed telomere attrition in recaptured males. Our results support that toads experience telomere attrition throughout their ontogeny, and that most attrition occurs during the first 1-2 years. We did not find associations between telomere length and inbreeding or body condition. Our results on telomere length dynamics under natural conditions confirm telomere shortening with age in amphibians and provide quantification of wide telomere length variation within and among age-classes in a wild breeding population.
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Affiliation(s)
- Gregorio Sánchez-Montes
- Museo Nacional de Ciencias Naturales, CSIC, c/ José Gutiérrez Abascal, 2, 28006 Madrid, Spain
| | - Íñigo Martínez-Solano
- Museo Nacional de Ciencias Naturales, CSIC, c/ José Gutiérrez Abascal, 2, 28006 Madrid, Spain
| | - Carmen Díaz-Paniagua
- Ecology, Evolution, and Development Group, Doñana Biological Station, CSIC, c/ Américo Vespucio 26, 41092 Seville, Spain
| | - Antonio Vilches
- Department of Environmental Biology, University of Navarra, c/ Irunlarrea, 1, 31008 Pamplona, Spain
| | - Arturo H. Ariño
- Department of Environmental Biology, University of Navarra, c/ Irunlarrea, 1, 31008 Pamplona, Spain
| | - Ivan Gomez-Mestre
- Ecology, Evolution, and Development Group, Doñana Biological Station, CSIC, c/ Américo Vespucio 26, 41092 Seville, Spain
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15
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Burraco P, Valdés AE, Orizaola G. Metabolic costs of altered growth trajectories across life transitions in amphibians. J Anim Ecol 2019; 89:855-866. [DOI: 10.1111/1365-2656.13138] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 09/29/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Pablo Burraco
- Animal Ecology Department of Ecology and Genetics Evolutionary Biology Centre Uppsala University Uppsala Sweden
- Ecology, Evolution, and Development Group Doñana Biological Station (EBD‐CSIC) Sevilla Spain
| | - Ana Elisa Valdés
- Department of Ecology, Environment and Plant Sciences Stockholm University Stockholm Sweden
| | - Germán Orizaola
- Animal Ecology Department of Ecology and Genetics Evolutionary Biology Centre Uppsala University Uppsala Sweden
- UMIB‐Research Unit of Biodiversity (Univ. Oviedo‐CSIC‐Princip. Asturias) Mieres Spain
- Zoology Unit Department Biology Organisms and Systems University of Oviedo Oviedo Spain
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16
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Chatelain M, Drobniak SM, Szulkin M. The association between stressors and telomeres in non‐human vertebrates: a meta‐analysis. Ecol Lett 2019; 23:381-398. [DOI: 10.1111/ele.13426] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/10/2019] [Accepted: 10/16/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Marion Chatelain
- Centre of New Technologies University of Warsaw Banacha 2C 02‐097 Warszawa Poland
| | - Szymon M. Drobniak
- Institute of Environmental Sciences Jagiellonian University Gronostajowa 7 30‐387 Kraków Poland
- Ecology & Evolution Research Centre School of Biological, Environmental and Earth Sciences University of New South Wales Sydney Australia
| | - Marta Szulkin
- Centre of New Technologies University of Warsaw Banacha 2C 02‐097 Warszawa Poland
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17
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Prokić MD, Gavrić JP, Petrović TG, Despotović SG, Gavrilović BR, Radovanović TB, Krizmanić II, Pavlović SZ. Oxidative stress in Pelophylax esculentus complex frogs in the wild during transition from aquatic to terrestrial life. Comp Biochem Physiol A Mol Integr Physiol 2019; 234:98-105. [DOI: 10.1016/j.cbpa.2019.05.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 05/06/2019] [Accepted: 05/06/2019] [Indexed: 12/13/2022]
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18
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Modulation of Metamorphic and Regenerative Events by Cold Atmospheric Pressure Plasma Exposure in Tadpoles, Xenopus laevis. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9142860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Atmospheric pressure plasma has found wide clinical applications including wound healing, tissue regeneration, sterilization, and cancer treatment. Here, we have investigated its effect on developmental processes like metamorphosis and tail regeneration in tadpoles. Plasma exposure hastens the process of tail regeneration but delays metamorphic development. The observed differences in these two developmental processes following plasma exposure are indicative of physiological costs associated with developmental plasticity for their survival. Ultrastructural changes in epidermis and mitochondria in response to the stress of tail amputation and plasma exposure show characteristics of cellular hypoxia and oxidative stress. Mitochondria show morphological changes such as swelling with wide and fewer cristae and seem to undergo processes such as fission and fusion. Complex interactions between calcium, peroxisomes, mitochondria and their pore transition pathways are responsible for changes in mitochondrial structure and function, suggesting the subcellular site of action of plasma in this system.
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Burraco P, Iglesias-Carrasco M, Cabido C, Gomez-Mestre I. Eucalypt leaf litter impairs growth and development of amphibian larvae, inhibits their antipredator responses and alters their physiology. CONSERVATION PHYSIOLOGY 2018; 6:coy066. [PMID: 30546907 PMCID: PMC6287674 DOI: 10.1093/conphys/coy066] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 10/16/2018] [Accepted: 11/14/2018] [Indexed: 06/09/2023]
Abstract
Consequences of human actions like global warming, spread of exotic species or resource consumption are pushing species to extinction. Even species considered to be at low extinction risk often show signs of local declines. Here, we evaluate the impact of eucalypt plantations, the best-known exotic tree species worldwide and its interaction with temperature and predators on amphibian development, growth, antipredator responses and physiology. For this purpose, we applied a fully factorial experiment crossing two types of leaf litter (native oak or eucalypt), two temperatures (15 and 20°C) and presence/absence of native predators. We found that leachates of eucalypt leaf litter reduced amphibian development and growth, compromised their antipredator responses and altered their metabolic rate. Increased temperature itself also posed serious alterations on development, growth, antioxidant ability and the immune status of tadpoles. However, the combined effects of eucalypt leaf litter and increased temperature were additive, not synergistic. Therefore, we show that non-lethal levels of a globally spread disruptor such as leachates from eucalypt leaf litter can seriously impact the life history and physiology of native amphibian populations. This study highlights the need to evaluate the status of wild populations exposed to human activities even if not at an obvious immediate risk of extinction, based on reliable stress markers, in order to anticipate demographic declines that may be hard to reverse once started. Replacing eucalypt plantations with native trees in protected areas would help improving the health of local amphibian larvae. In zones of economic interest, we would recommend providing patches of native vegetation around ponds and removing eucalypt leaf litter from pond basins during their dry phase.
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Affiliation(s)
- Pablo Burraco
- Ecology, Evolution and Development Group, Doñana Biological Station (CSIC), C/ Americo Vespucio 26, Sevilla, Spain
- Evolutionary Biology Centre, Uppsala University Norbyvägen 18 D, Uppsala, Sweden
| | - Maider Iglesias-Carrasco
- Department of Evolutionary Ecology, National Museum of Natural History (CSIC), Calle de José Gutiérrez Abascal, 2, Madrid, Spain
- Department of Herpetology, Aranzadi Society of Sciences, Zorroagagaina, 11, San Sebastian, Spain
- Research School of Biology, Australian National University, 134, Linnaeus Way, Acton ACT Canberra, ACT, Australia
| | - Carlos Cabido
- Department of Herpetology, Aranzadi Society of Sciences, Zorroagagaina, 11, San Sebastian, Spain
| | - Ivan Gomez-Mestre
- Ecology, Evolution and Development Group, Doñana Biological Station (CSIC), C/ Americo Vespucio 26, Sevilla, Spain
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20
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Comparative assessment of the antioxidative defense system in subadult and adult anurans: A lesson from the Bufotes viridis toad. ZOOLOGY 2018; 130:30-37. [DOI: 10.1016/j.zool.2018.08.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 08/13/2018] [Accepted: 08/14/2018] [Indexed: 12/25/2022]
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