Intra-specific Dominance Determines Subseasonal Pinus ponderosa Growth Response to Warm-Season Precipitation amid Drought in southern Nevada, U.S.A.

Intra-specific Dominance Determines Subseasonal Pinus ponderosa Growth Response to Warm-Season Precipitation amid Drought in southern Nevada, U.S.A. | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL Ecohydrology This is a preprint and has not been peer reviewed. Data may be preliminary. 9 January 2025 V1 Latest version Share on Intra-specific Dominance Determines Subseasonal Pinus ponderosa Growth Response to Warm-Season Precipitation amid Drought in southern Nevada, U.S.A. Authors : Charles Truettner 0000-0002-8247-6154 [email protected] , Simon R. Poulson , Emanuele Ziaco , and Adam Z. Csank 0000-0002-7001-4470 Authors Info & Affiliations https://doi.org/10.22541/au.173639045.50102795/v1 257 views 158 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract The isotopic composition of soil water used by trees is affected by multiple ecohydrological processes, and the relative abundance of stable isotopes in plant tissue is determined by subseasonal hydroclimatic conditions. We measured δ 18 O in precipitation (δ 18 O PPT ), xylem water (δ 18 O XW ), and cellulose of tree-rings (δ­ 18 O CELL and δ­ 13 C CELL ) in dominant and codominant ponderosa pines for the 2015 and 2016 warm seasons during drought conditions. Quantitative wood anatomy, including tracheid lumen diameter (LD) and cell wall thickness (CWT), provided phenological dates of wood formation. False ring formation was measured in multiple trees in response to precipitation from a large remnant storm of Hurricane Dolores that reached southern Nevada . We utilized the opportunity to test if the α-cellulose in false rings had a different isotopic signal between dominant and codominant trees. Indeed, we measured a different isotopic ratio (δ­ 18 O CELL ) in codominant trees associated with higher soil moisture at shallower soil depths. Contrariwise, the δ­ 18 O CELL in dominant trees formed during the 2016 warm season reflected fluctuations in soil moisture at deeper soil depths, accessing water stored in the macropores of bedrock after a wetter early warm-season and drier monsoon season. No subseasonal differences between codominant and dominant trees were measured in δ­ 13 C CELL . Throughout our study, we observed that codominant ponderosa pine tree-ring growth responded to pulses of warm-season precipitation more readily than dominant trees. If southern Nevada continues to trend toward a drier and warmer future, deep soil water recharge will be less reliable and drought stress will threaten dominant trees in old-growth forests. Supplementary Material File (subseason_sheep_ecohydrology.docx) Download 77.12 KB Information & Authors Information Version history V1 Version 1 09 January 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Collection Ecohydrology Keywords ecohydrology high-resolution dendrochronology hurricanes monsoon stable isotopes tree physiology wood anatomy Authors Affiliations Charles Truettner 0000-0002-8247-6154 [email protected] University of Nevada Reno Department of Natural Resources and Environmental Science View all articles by this author Simon R. Poulson University of Nevada Reno View all articles by this author Emanuele Ziaco Johannes Gutenberg Universitat Mainz Geographisches Institut View all articles by this author Adam Z. Csank 0000-0002-7001-4470 University of Nevada Reno View all articles by this author Metrics & Citations Metrics Article Usage 257 views 158 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Charles Truettner, Simon R. Poulson, Emanuele Ziaco, et al. Intra-specific Dominance Determines Subseasonal Pinus ponderosa Growth Response to Warm-Season Precipitation amid Drought in southern Nevada, U.S.A.. Authorea . 09 January 2025. DOI: https://doi.org/10.22541/au.173639045.50102795/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . Format Please select one from the list RIS (ProCite, Reference Manager) EndNote BibTex Medlars RefWorks Direct import Tips for downloading citations document.getElementById('citMgrHelpLink').addEventListener('click', function() { popupHelp(this.href); return false; }); $(".js__slcInclude").on("change", function(e){ if ($(this).val() == 'refworks') $('#direct').prop("checked", false); $('#direct').prop("disabled", ($(this).val() == 'refworks')); }); View Options View options PDF View PDF Figures Tables Media Share Share Share article link Copy Link Copied! Copying failed. 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