Dietary sodium levels affect grasshopper growth and performance

dc.contributor.authorPeterson, Taylor N.
dc.contributor.authorWelti, Ellen A.R.
dc.contributor.authorKaspari, Michael
dc.date.accessioned2021-06-02T14:58:27Z
dc.date.available2021-06-02T14:58:27Z
dc.date.issued2021-03-08
dc.description.abstractAnthropogenic activities are increasing terrestrial sodium availability through application of both saline irrigation water and road salt. Sodium often limits herbivore abundance, but less is known about the physiological, developmental, and behavioral means by which moderate increases in sodium availability can increase herbivore fitness. Here, we raised a grasshopper species on three no-choice diets of wheatgrass watered with no sodium (control), a 1% (medium) sodium solution, and a 5% (high) sodium solution to examine the effects of sodium intake on grasshopper survival, morphology, and jumping performance. Grasshopper nymphs raised on a high sodium diet had lower weights and reduced survival compared to those raised on control or medium sodium diets. However, nymphs on a high sodium diet developed larger eye size standardized by body size and demonstrated increased jumping distance compared to nymphs on the control or medium sodium diets. As adults, grasshoppers on the medium sodium diet had the highest survival and grasshoppers on the high sodium diet had the least amount of cannibalism of the three treatments. Understanding the response of herbivore fitness to increasing diet sodium content is an important first step toward predicting how anthropogenic inputs of sodium into terrestrial systems will alter food webs.en_US
dc.description.peerreviewYesen_US
dc.description.sponsorshipNSF DEB-1556280 awarded to MK including a REU award to TNP supported this project. Open Access fees paid for in whole or in part by the University of Oklahoma Libraries.en_US
dc.identifier.citationPeterson, T. N., E. A. R. Welti, and M. Kaspari. 2021. Dietary sodium levels affect grasshopper growth and performance. Ecosphere 12(3):e03392.10.1002/ecs2.3392en_US
dc.identifier.doi10.1002/ecs2.3392en_US
dc.identifier.urihttps://hdl.handle.net/11244/330059
dc.languageen_USen_US
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectAcrididaeen_US
dc.subjectDieten_US
dc.subjectHerbivoryen_US
dc.subjectJumpingen_US
dc.subjectMelanoplus differentialisen_US
dc.subjectNo-choiceen_US
dc.subjectOpportunistic carnivoryen_US
dc.subjectSurvivalen_US
dc.titleDietary sodium levels affect grasshopper growth and performanceen_US
dc.typeArticleen_US
ou.groupCollege of Arts and Sciences::Department of Biologyen_US

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