Cross-Life Stage Effects of Aquatic Larval Density and Terrestrial Moisture on Growth and Corticosterone in the Spotted Salamander

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dc.contributor.authorCharbonnier, Julie
dc.contributor.authorPearlmutter, Jacquelyn
dc.contributor.authorVonesh, James
dc.contributor.authorGabor, Caitlin R.
dc.contributor.authorForsburg, Zachery R.
dc.contributor.authorGrayson, Kristine L.
dc.date.accessioned2021-07-08T19:28:41Z
dc.date.available2021-07-08T19:28:41Z
dc.date.issued2018-07
dc.description.abstractFor organisms with complex life cycles, conditions experienced during early life stages may constrain later growth and survival. Conversely, compensatory mechanisms may attenuate negative effects from early life stages. We used the spotted salamander, Ambystoma maculatum, to test how aquatic larval density and terrestrial moisture influence juvenile growth, food intake, evaporative water loss and water reuptake rates, and corticosterone levels. We conducted an outdoor mesocosm experiment to manipulate larval density and transferred metamorphosed salamanders into low and high terrestrial moisture treatments in laboratory terrariums. After the larval stage, high-density salamanders were significantly smaller and had higher corticosterone release rates than those from low-density treatments. Salamanders in the low terrestrial moisture treatment consumed fewer roaches, had lower mass-specific growth rates, higher water reuptake, and higher corticosterone release rates than salamanders in high terrestrial moisture treatments. Across moisture treatments, smaller salamanders had higher mass-specific growth rates than larger salamanders. Our results suggest that salamanders can partially compensate for competition in the larval aquatic habitat with increased growth as juveniles, but this response is dependent on terrestrial habitat quality. Thus, the persistence of early life stage effects can be an important, yet context-dependent, component of amphibian life cycles.
dc.description.departmentBiology
dc.formatText
dc.format.extent16 pages
dc.format.medium1 file (.pdf)
dc.identifier.citationCharbonnier, J., Pearlmutter, J., Vonesh, J., Gabor, C. R., Forsburg, Z. R., Grayson, K. L. (2018). Cross-life stage effects of aquatic larval density and terrestrial moisture on growth and corticosterone in the spotted salamander. Diversity, 10(3): 68.
dc.identifier.doihttps://doi.org/10.3390/d10030068
dc.identifier.issn1424-2818
dc.identifier.urihttps://hdl.handle.net/10877/13825
dc.language.isoen
dc.publisherMultidisciplinary Digital Publishing Institute
dc.rights.holder© 2018 The Authors.
dc.rights.licenseThis work is licensed under a Creative Commons Attribution 4.0 International License.
dc.sourceDiversity, 2018, Vol. 10, No. 3, Article 68.
dc.subjectAmbystoma maculatum
dc.subjectamphibians
dc.subjectcomplex life cycle
dc.subjectdevelopment
dc.subjectevaporative water loss
dc.subjectdesiccation
dc.subjectfood intake
dc.subjectstress
dc.subjectBiology
dc.titleCross-Life Stage Effects of Aquatic Larval Density and Terrestrial Moisture on Growth and Corticosterone in the Spotted Salamander
dc.typeArticle

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