Effects of temperature on embryonic and early larval growth and development in the rough-skinned newt (Taricha granulosa)

Smith, Geoffrey D.; Hopkins, Gareth R.; Mohammadi, Shabnam; Skinner, Heather M.; Hansen, Tyler; Brodie, Edmund D.; French, Susannah S.

doi:10.1016/j.jtherbio.2015.03.010

Cited by 24 publications

(17 citation statements)

References 63 publications

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“…In a mole salamander Ambystoma maculatum , embryonic survival is very low with early breeding at the water temperatures around 10 °C (23%), compared to late breeding at the water temperatures around 20 °C (93%–98%: Harris, ). Carry‐over effects have been observed in the rough‐skinned newt Taricha granulosa , where cooler temperatures during early embryonic development (7 °C) do not allow achieving the larval size of individuals from warmer‐treated embryos (14 or 21 °C; Smith et al, ). In H. kimurae , because early embryos usually develop below the water temperature around 10 °C (Tago, , ; see also Figure ), our study, in which a rate of embryonic survival during early development was high (93.19%) below the water temperature around 7.5 °C, was reasonable.…”

Section: Discussionmentioning

confidence: 99%

“…However, in amphibians, within‐year timing of breeding is more advanced when water temperatures increase earlier than usual and is more delayed when water temperatures increase later than usual (Wells, ; Wheeler et al, ). Within‐year timing of breeding can play a major role in reproductive success and embryonic development (Harris, ; Smith et al, ).…”

Section: Introductionmentioning

confidence: 99%

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Effects of controlled water temperatures on oviposition in a lotic‐breeding and externally fertilizing salamander (Hynobius kimurae)

Kakegawa

Hasumi

2017

River Research & Apps

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Warm or cool ambient temperatures during winter generate plasticity in the within-year timing of oviposition or breeding phenology shifts through the use of a reaction norm in many riverine ectotherms, but within-year timing of oviposition in Hynobius kimurae (Caudata: Hynobiidae) is predicted to be constant at different water temperatures of a mountain stream. To clarify this difference, by experimentally controlling water temperatures from fall to spring and thus changing durations of aquatic hibernation and dates of oviposition, we determined whether oviposition is more advanced when water temperatures increase earlier than usual or is more delayed when water temperatures increase later than usual. Oviposition was more delayed than usual with earlier exposure to high water temperatures during spring and was earlier than usual with exposing to higher water temperatures during hibernation. Days from submergence to oviposition were responsive to cumulative daily water temperatures from submergence to oviposition within a population. A rate of increase in days from submergence to oviposition was different between populations but was constant within a population even if minimal water temperatures varied each year. When running a program of a Markov chain Monte Carlo generalized linear mixed model for Bayesian computation to interpret confounding effects, neither different treatments nor different years statistically affected days from submergence to oviposition. These results suggest that a biological clock exits for days from submergence to oviposition in H. kimurae, which could allow survival in situations with either warmer or cooler environments.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of controlled water temperatures on oviposition in a lotic‐breeding and externally fertilizing salamander (Hynobius kimurae)

Kakegawa

Hasumi

2017

River Research & Apps

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“…The filtered tap water (0.2 ppt) was used as a freshwater control. Temperature-controlled rooms were set to 7, 14 or 21°C, representative of the range of temperatures that newts may experience during the breeding season in the wild, and which are known to significantly influence embryonic and larval growth and development in this species [52]. …”

Section: Methodsmentioning

confidence: 99%

Interacting stressors and the potential for adaptation in a changing world: responses of populations and individuals

2017

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To accurately predict the impact of environmental change, it is necessary to assay effects of key interacting stressors on vulnerable organisms, and the potential resiliency of their populations. Yet, for the most part, these critical data are missing. We examined the effects of two common abiotic stressors predicted to interact with climate change, salinity and temperature, on the embryonic survival and development of a model freshwater vertebrate, the rough-skinned newt (Taricha granulosa) from different populations. We found that salinity and temperature significantly interacted to affect newt embryonic survival and development, with the negative effects of salinity most pronounced at temperature extremes. We also found significant variation among, and especially within, populations, with different females varying in the performance of their eggs at different salinity–temperature combinations, possibly providing the raw material for future natural selection. Our results highlight the complex nature of predicting responses to climate change in space and time, and provide critical data towards that aim.

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“…Plasticity is particularly important for responses to temperature, which affects nearly all physiological processes. In particular, the embryonic and larval/juvenile period for vertebrates are typically very sensitive developmental periods in an organism’s life history, marked by fundamental shifts in size, morphology, and physiology (Mueller et al, 2015a,b; Smith et al, 2015). Responses to temperature during these stages may have significant implications for species success, particularly in response to increased temperatures predicted with climate change (Cayan et al, 2008; van Vliet et al, 2013; IPCC, 2014).…”

Section: Introductionmentioning

confidence: 99%

Immediate and Persistent Effects of Temperature on Oxygen Consumption and Thermal Tolerance in Embryos and Larvae of the Baja California Chorus Frog, Pseudacris hypochondriaca

et al. 2019

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The developmental environment has significant immediate effects on phenotypes, but it may also persistently or permanently shape phenotypes across life history. This study examined how developmental temperature influenced embryonic and larval phenotypes of Baja California chorus frog ( Pseudacris hypochondriaca ), an abundant amphibian in southern California and northern Baja California. We collected egg clutches from native ponds in northern San Diego County within 24 h of fertilization, and clutches were separated and distributed between constant temperatures of 10, 15, 20, and 25°C for incubation. Oxygen consumption rate ( O 2 ), developmental stage, and embryo and yolk masses were measured throughout development. Time to 50% hatch, survival at 50% hatch, and hatch duration were determined. Development rate was strongly affected by temperature, with warmer temperatures reducing time to hatch and hatch duration. Survival to hatch was high across all temperatures, >90%. Mass-specific O 2 of embryos either remained constant or increased throughout development, and by hatching energy demand was significantly increased at higher temperatures. There were limited temperature effects on growth, with embryo and yolk dry mass similar between temperatures throughout embryonic development. To examine long-term effects of embryonic temperature, we reared hatchlings from each temperature until onset of larval feeding. Once feeding, larvae were acclimated to 20 or 25°C (>2 weeks). Following acclimation to 20 or 25°C, we measured larval mass-specific O 2 and critical thermal maximum (CTMax) at a common developmental stage (Gosner stages 32–36, “hindlimb toe differentiation”). Embryonic temperature had persistent effects on larval O 2 and CTMax, with warmer temperatures generally resulting in similar or higher O 2 and CTMax. This partially supported a “warmer is better” effect of embryonic incubation temperature. These results suggest that in a thermally robust amphibian species, temperature may program the phenotype during early development to construct traits in thermal tolerance and energy use that may persist. Overall, P. hypochondriaca displays a thermally robust phenotype, and it is possible that amphibians that possess a wider range of phenotypic plasticity will be relatively more successful mitigating effects of climate change.

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Effects of temperature on embryonic and early larval growth and development in the rough-skinned newt (Taricha granulosa)

Cited by 24 publications

References 63 publications

Effects of controlled water temperatures on oviposition in a lotic‐breeding and externally fertilizing salamander (Hynobius kimurae)

Effects of controlled water temperatures on oviposition in a lotic‐breeding and externally fertilizing salamander (Hynobius kimurae)

Interacting stressors and the potential for adaptation in a changing world: responses of populations and individuals

Immediate and Persistent Effects of Temperature on Oxygen Consumption and Thermal Tolerance in Embryos and Larvae of the Baja California Chorus Frog, Pseudacris hypochondriaca

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