Intra and Interspecific Variation in Thermal Performance and Critical Limits in Anurans from Southern Chile DOI
Marcela A. Vidal, Enrico L. Rezende, Leonardo D. Bacigalupe

et al.

Published: Jan. 1, 2023

We quantified the variation across individuals and species of endemic Eupsophus. then compared our estimates with those co-occurring Batrachyla taeniata Rhinella spinulosa, which have a significantly larger distribution range. Specifically, we tested for individual consistency in thermal responses within differences between populations along latitudinal gradient. The results indicated that appeared to be relatively conserved phylogeny, as locomotor performance activity windows remained narrow Eupsophus outgroups B. R. spinulosa. While maximum (Pmax) varied dataset, reduced 3.3-fold when focusing solely on species. Optimal temperature (Topt) upper limit (CTmax) were highly species, differing by 2 °C. All displayed remarkable cold tolerance, ability maintain motor coordination even at temperatures near or below 0 Despite limited number analyzed, study detected high often statistically significant phylogenetic signal traits such CTmin, Topt, CTmax, Pmax. contributes overall performance, explaining substantial fraction variation. Individual was moderate most Interestingly, although there allometric effect tolerance different no correlation critical limits, after accounting identity.

Language: Английский

Beyond reaction norms: the temporal dynamics of phenotypic plasticity DOI Open Access
Léonard Dupont, Mélanie Thierry, Lucie Zinger

et al.

Trends in Ecology & Evolution, Journal Year: 2023, Volume and Issue: 39(1), P. 41 - 51

Published: Sept. 15, 2023

Language: Английский

Citations

25
Tadpoles Develop Elevated Heat Tolerance in Urban Heat Islands Regardless of Sex DOI Creative Commons
Veronika Bókony, Emese Balogh, János Ujszegi

et al.

Evolutionary Biology, Journal Year: 2024, Volume and Issue: 51(1), P. 209 - 216

Published: Feb. 3, 2024

Abstract The ability of wildlife to endure the effects high temperatures is increasingly important for biodiversity conservation under climate change and spreading urbanization. Organisms living in urban heat islands can have elevated tolerance via phenotypic or transgenerational plasticity microevolution. However, prevalence mechanisms such thermal adaptations are barely known aquatic organisms. Furthermore, males females differ tolerance, which may lead sex-biased mortality, yet it unknown how sex differences biology influence divergence. To address these knowledge gaps, we measured critical maxima (CT max ) male female agile frog ( Rana dalmatina tadpoles captured from warm ponds cool woodland ponds, a common-garden experiment where embryos collected both habitat types were raised laboratory. We found higher CT urban-dwelling compared their counterparts ponds. This difference was reversed experiment: originating had lower than no effect on its between habitats. These results demonstrate that amphibian larvae respond island with increased similarly other, mostly terrestrial taxa studied so far, be main driver this response. Our findings also suggest heat-induced mortality independent tadpoles, but research needed many more explore potentially sex-dependent responses.

Language: Английский

Citations

7
Vulnerability of amphibians to global warming DOI Creative Commons
Patrice Pottier, Michael Kearney, Nicholas C. Wu

et al.

Nature, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Amphibians are the most threatened vertebrates, yet their resilience to rising temperatures remains poorly understood1,2. This is primarily because knowledge of thermal tolerance taxonomically and geographically biased3, compromising global climate vulnerability assessments. Here we used a phylogenetically informed data-imputation approach predict heat 60% amphibian species assessed daily temperature variations in refugia. We found that 104 out 5,203 (2%) currently exposed overheating events shaded terrestrial conditions. Despite accounting for heat-tolerance plasticity, 4 °C increase would create step change impact severity, pushing 7.5% beyond physiological limits. In Southern Hemisphere, tropical encounter disproportionally more events, while non-tropical susceptible Northern Hemisphere. These findings challenge evidence general latitudinal gradient risk4-6 underscore importance considering climatic variability provide conservative estimates assuming access cool microenvironments. Thus, impacts warming will probably exceed our projections. Our microclimate-explicit analyses demonstrate vegetation water bodies critical buffering amphibians during waves. Immediate action needed preserve manage these microhabitat features.

Language: Английский

Citations

0
Effects of duration and type of cold acclimation on the subsequent cold tolerance of a tenebrionid beetle DOI Creative Commons

Samira Khodayari,

Stéphane A. P. Derocles, David Renault

et al.

Journal of Thermal Biology, Journal Year: 2025, Volume and Issue: unknown, P. 104100 - 104100

Published: March 1, 2025

Language: Английский

Citations

0
Automating thermal limits: continuous, objective, and high-throughput thermal data for small mobile ectotherms DOI Creative Commons
Sophie Mallett, Lily Leahy, Ian P. Vaughan

et al.

Journal of Thermal Biology, Journal Year: 2025, Volume and Issue: 129, P. 104127 - 104127

Published: April 1, 2025

Language: Английский

Citations

0
Intra and interspecific variation in thermal performance and critical limits in anurans from southern Chile DOI
Marcela A. Vidal, Enrico L. Rezende, Leonardo D. Bacigalupe

et al.

Journal of Thermal Biology, Journal Year: 2024, Volume and Issue: 121, P. 103851 - 103851

Published: April 1, 2024

Language: Английский

Citations

2
Greater plasticity in CTmax with increased climate variability among populations of tailed frogs DOI
Amanda S. Cicchino, Cameron K. Ghalambor, Brenna R. Forester

et al.

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 291(2034)

Published: Nov. 1, 2024

Temporally variable climates are expected to drive the evolution of thermal physiological traits that enable performance across a wider range temperatures (i.e. climate variability hypothesis, CVH). Spatial variability, however, may mediate this relationship by providing ectotherms with opportunity behaviourally select preferred Bogert effect). These antagonistic forces on explain mixed support for CVH within species despite strong among at larger geographical scales. Here, we test as it relates plasticity in upper limits (critical maximum—CTmax) populations coastal tailed frogs ( Ascaphus truei ). We targeted inhabit spatially homogeneous environments, reducing potentially confounding effects behavioural thermoregulation. found experiencing greater temporal exhibited CTmax, supporting CVH. Interestingly, identified only one site spatial temperature and tadpoles from demonstrated than expected, suggesting thermoregulation can reduce Overall, our results demonstrate role shaping provide baseline understanding impact landscapes.

Language: Английский

Citations

2
Is thermal sensitivity affected by predation risk? A case study in tadpoles from ephemeral environments DOI
Daniela Miloch, Nicolás R. Cecchetto, Julián N. Lescano

et al.

Journal of Experimental Zoology Part A Ecological and Integrative Physiology, Journal Year: 2024, Volume and Issue: 341(4), P. 400 - 409

Published: Feb. 14, 2024

Abstract Changes in environmental temperature may induce variations thermal tolerance and sensitivity ectotherm organisms. These generate plastic responses that can be analyzed by examining their Thermal Performance Curves (TPCs). Additionally, some performance traits, like locomotion, could affected other factors such as biological interactions (e.g., predator–prey interaction). Here, we evaluate if the risk of predation modifies TPCs Mendoza four‐eyed frog ( Pleurodema nebulosum , Burmeister, 1861) Guayapa's guayapae Barrio, 1964), two amphibian species occur ephemeral ponds arid environments. We measured tolerances maximum swimming velocity at six different temperatures tadpoles under three situations: control, exposure to predator chemical cues, conspecific alarm cues. were fitted using General Additive Mixed Models. found curves differed from those control mainly parameters. Our work confirms importance biotic have physiology.

Language: Английский

Citations

1
Embryos and tadpoles of the eurythermal Baja California chorus frog ( Pseudacris hypochondriaca ) show subtle phenotypic changes in response to daily cycling temperatures DOI
Casey A. Mueller, Cecı́lia Leão,

Krystal R. Atherley

et al.

Deleted Journal, Journal Year: 2024, Volume and Issue: 97(6), P. 354 - 370

Published: Nov. 1, 2024

Next article No AccessEmbryos and tadpoles of the eurythermal Baja California chorus frog ( Pseudacris hypochondriaca ) show subtle phenotypic changes in response to daily cycling temperaturesCasey A. Mueller, Carlos C.B. Leão, Krystal R. Atherley, Natalie Campos, John EmeCasey EmePDFPDF PLUS Add favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookXLinkedInRedditEmailPrint SectionsMoreDetailsFiguresReferencesCited by Ecological Evolutionary Physiology Just Accepted Sponsored Division Comparative Biochemistry, Society for Integrative Biology Article DOIhttps://doi.org/10.1086/733827 PermissionsRequest permissions HistoryAccepted November 04, 2024 © The University Chicago. All Rights reserved.PDF download Crossref reports no articles citing this article.

Language: Английский

Citations

1
Tadpoles develop elevated heat tolerance in urban heat islands regardless of sex DOI Creative Commons
Veronika Bókony, Emese Balogh, János Ujszegi

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: Aug. 27, 2023

Abstract The ability of wildlife to endure the effects high temperatures is increasingly important for biodiversity conservation under climate change and spreading urbanization. Organisms living in urban heat islands can have elevated tolerance via both phenotypic plasticity microevolution. However, prevalence mechanisms such thermal adaptations are barely known aquatic organisms. Furthermore, males females differ tolerance, which may lead sex-biased mortality, yet it unknown how sex differences biology influence adaptations. To address these knowledge gaps, we measured critical maxima (CT max ) male female agile frog ( Rana dalmatina tadpoles captured from warm ponds cool woodland ponds, a common-garden experiment where embryos collected habitat types were raised laboratory. We found higher CT urban-dwelling compared their counterparts ponds. This difference was reversed experiment: originating had lower than no effect on or its between habitats. These results demonstrate that amphibian larvae respond island with increased similarly other, mostly terrestrial taxa studied so far, be main driver this response. Our findings also suggest heat-induced mortality independent tadpoles, but research needed many more explore potentially sex-dependent responses.

Language: Английский

Citations

1