Predictive Mapping of Rare Plants
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2022-03-01
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Edition:Technical Report, June 2018–October 2021
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Abstract:Populations of rare plants are often endangered due to various natural and anthropogenic disturbances that interfere with their specialized niches. These isolated populations are difficult to detect without intensive field surveys. Predicting potential geographic distributions of these species is important for conservation by allowing the implementation of appropriate habitat management strategies in predicted habitats. In consultation with plant ecologists from the Texas Parks and Wildlife Department, Texas Department of Transportation (TXDoT), and Botanical Research Institute of Texas, this project identified 17 rare plant species in Texas and compiled the pertinent biological and ecological information of these species. This project carried out potential distribution modeling of the selected 17 rare plants using historical presence-only data and Maxent models. Models of four selected species were also validated using an independent dataset collected from field surveys conducted during this project. This project produced valid models that predict potential distribution of the plants. The results of the distribution models are appended in this report and all digital layers produced from this project will be submitted to TxDOT for future use. The results can be useful in conservation planning of the rare plant species in Texas.
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Content Notes:Appendices included as Supplemental File.
Cover date: December 29, 2021; report date November 2021; published March 2022.
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