{"help":"Return the metadata of a dataset (package) and its resources. :param id: the id or name of the dataset :type id: string","success":true,"result":[{"id":"c50c2e68-f438-4ded-8d47-60285ef02c33","name":"thesis-intraspecific-variation-plant-plant-interactions-and-belowground-zone-influence-big","title":"Thesis | Intraspecific Variation in Plant-Plant Interactions and Belowground Zone of Influence of Big Sagebrush (Artemisia tridentata)","author":"Andrii Zaiats","author_email":"trevorcaughlin@boisestate.edu","maintainer":"RCDS Data Repository","maintainer_email":"rcds-web@uidaho.edu","notes":"Post-fire restoration of degraded sagebrush ecosystems over large areas of the Great Basin is challenging, in part due to unpredictable outcomes. Low rates of restoration success are attributed to increasing frequencies of wildfires, biological invasions, and climate variability. Quantifying restoration outcomes by accounting for sources of biotic and abiotic variability will improve restoration as a predictive science. One source of biotic variability is neighbor interactions, which can regulate demographic parameters of coexisting species and are an important determinant of community structure, ecosystem functions, and population dynamics. Our objective was to quantify how intraspecific variability in big sagebrush, Artemisia tridentata, including three subspecies and two ploidy levels, is related to subspecies\u2019 reaction to conspecific neighbor presence. Neighbor interactions can alter population growth rate via competition or facilitation depending on specific environmental conditions. Using a longterm common garden experiment, we developed spatially-explicit hierarchical models to quantify the effects of size-structured crowding on plant growth and survival. We found that neighbor interactions can vary significantly over time and space, and tend to be more pronounced under wetter and cooler climate conditions. We further tested if water availability, one of the major limiting factors in arid ecosystems, can underlie competitive interactions in a common garden, including density dependence. We used a deuteriumtracer experiment to quantify belowground zone of influence and crowding effect on plant water uptake. The results suggest that intraspecific variability in lateral root extent v may be linked to subspecies identity and ploidy level. We did not find strong evidence that neighbor presence and size can alter water uptake from a shallow soil horizon, potentially suggesting size-independent partitioning of water resources between neighboring plants. We further hypothesize that variability in root architecture may reflect an axis for ecohydrological niche segregation contributing to the process of plant coexistence and evolution in heterogeneous landscapes. Our study complements previous knowledge of belowground processes in big sagebrush populations, including patterns of resource acquisition, and indicates promising avenues for further research of the ecology and evolution of this species. The results highlight how local plant-plant interactions can be a source of variation in common garden experiments, which are used to evaluate adaptive capacity and seed transfer zone development for A. tridentata populations. Potential applications of our work include planting density recommendations for big sagebrush in applied and experimental contexts, and provide mechanistic understanding of intraspecific diversification and ecological tradeoffs related to local adaptations.","url":"https:\/\/data.nkn.uidaho.edu\/dataset\/thesis-intraspecific-variation-plant-plant-interactions-and-belowground-zone-influence-big","state":"Active","log_message":"Edited by awchild.","private":true,"revision_timestamp":"Thu, 03\/23\/2023 - 09:44","metadata_created":"Thu, 03\/23\/2023 - 09:34","metadata_modified":"Thu, 03\/23\/2023 - 09:44","creator_user_id":"6cc16f2c-77c2-4d12-ac06-56bbb86b535b","type":"Dataset","resources":[{"id":"c93ab171-8969-42ef-a1b0-4d365be58a10","revision_id":"","url":"https:\/\/doi.org\/10.18122\/td\/1539\/boisestate","description":"","format":"html","state":"Active","revision_timestamp":"Thu, 03\/23\/2023 - 09:44","name":"Thesis Access via Boise ScholarWorks | Intraspecific Variation in Plant-Plant Interactions and Belowground Zone of Influence of Big Sagebrush (Artemisia tridentata)","mimetype":"html","size":"","created":"Thu, 03\/23\/2023 - 09:44","resource_group_id":"bff301ea-b742-427b-954e-e6a326c2ea45","last_modified":"Date changed Thu, 03\/23\/2023 - 09:44"}],"tags":[{"id":"bfd62175-0785-4c6b-ad66-b98ab6501123","vocabulary_id":"2","name":"Artemisia tridentata (sagebrush)"},{"id":"3c4b7b04-c8c8-46c4-bc38-4a5ad5c6e57a","vocabulary_id":"2","name":"climate change"},{"id":"2ddf177c-15c4-4755-a442-4d656453e890","vocabulary_id":"2","name":"common garden"},{"id":"cb036d79-4910-4f0f-acc4-855b4a5270a9","vocabulary_id":"2","name":"community ecology"},{"id":"8ba1e384-cc3f-4258-ba13-2cfcebe694f6","vocabulary_id":"2","name":"demographics"},{"id":"ba8961b1-13b9-4e04-bffe-42afec4c7541","vocabulary_id":"2","name":"disturbance"},{"id":"d7f46c33-19b1-4acb-9a17-c37700ec2e04","vocabulary_id":"2","name":"drought"},{"id":"425f965a-f839-486d-be20-95827298c8c0","vocabulary_id":"2","name":"ecology"},{"id":"4ff8f12f-597f-460d-98ea-6650f2124e30","vocabulary_id":"2","name":"environmental change"},{"id":"0b3fae08-7bf8-4e8a-a8e2-33f4d1c2364d","vocabulary_id":"2","name":"wildfire"},{"id":"333c81a4-ec0a-46e6-b179-9bd764b371c6","vocabulary_id":"2","name":"intraspecific variation"},{"id":"0baf725b-364f-4d01-8c2f-7134894b0343","vocabulary_id":"2","name":"neighbor interactions"},{"id":"778dbb8a-8e49-4674-93d2-219018df0978","vocabulary_id":"2","name":"ploidy"}],"groups":[{"description":"\u003Cp\u003EBoise State University is a Carnegie-classified doctoral research university and our students have opportunities to work with talented and accomplished faculty on research, even as undergraduates. Our students go into the workforce better prepared, with expertise outside of their major by taking advantage of opportunities such as certificates in business anthropology, entrepreneurship, or cybersecurity. \u003C\/p\u003E\n\u003Cp\u003ELearn more at \u003Ca href=\u0022https:\/\/www.boisestate.edu\/\u0022\u003Ehttps:\/\/www.boisestate.edu\/\u003C\/a\u003E\u003C\/p\u003E\n","id":"bff301ea-b742-427b-954e-e6a326c2ea45","image_display_url":"https:\/\/data.nkn.uidaho.edu\/sites\/default\/files\/bsu_logo.jpg","title":"Boise State University","name":"group\/boise-state-university"},{"description":"\u003Cp\u003EThe primary objective of Idaho EPSCoR is to stimulate research in niche areas that can become fully competitive in the disciplinary and multidisciplinary research programs of the National Science Foundation and other relevant agencies. Idaho EPSCoR provides support for sustainable increases in Research and Development capacity and advances science and engineering capabilities within the state. \u003C\/p\u003E\n\u003Cp\u003EVisit them at \u003Ca href=\u0022https:\/\/www.idahoepscor.org\u0022\u003Ehttps:\/\/www.idahoepscor.org\u003C\/a\u003E\u003C\/p\u003E\n","id":"e696b239-9ecb-412e-b032-03a75b2b9fd6","image_display_url":"https:\/\/data.nkn.uidaho.edu\/sites\/default\/files\/Idaho_epscor_logo_no_white_background.png","title":"Idaho EPSCoR","name":"group\/idaho-epscor"},{"description":"\u003Cp\u003EGEM3 is an NSF EPSCoR research program seeking to understand how genetic diversity and phenotypic plasticity affect species response to environmental change, shaping both population response and adaptive capacity.\u003C\/p\u003E\n\u003Cp\u003EVisit them at: \u003Ca href=\u0022https:\/\/www.idahogem3.org\u0022\u003Ehttps:\/\/www.idahogem3.org\u003C\/a\u003E\u003C\/p\u003E\n","id":"1812a312-11a4-492d-960b-9a78b4abfe0c","image_display_url":"https:\/\/data.nkn.uidaho.edu\/sites\/default\/files\/GEM3_nov5_logo.png","title":"EPSCoR GEM3","name":"group\/epscor-gem3"}]}]} Error | RCDS Data Repository

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