Including phylogenetic conservatism of shortgrass prairie restoration species does not improve species germinability prediction

dc.creatorChen, Yanni (TTU)
dc.creatorSchwilk, Dylan W (TTU)
dc.creatorCox, Robert D (TTU)
dc.creatorJohnson, Matthew G (TTU)
dc.date.accessioned2023-02-27T18:38:46Z
dc.date.available2023-02-27T18:38:46Z
dc.date.issued2022
dc.description© 2022 Chen, Schwilk, Cox and Johnson. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.en_US
dc.description.abstractPremise: We investigated whether phylogenetic conservatism can improve the performance of seed germinability prediction models. Previous studies in tallgrass prairie and alpine meadow revealed that seed morphological traits demonstrate phylogenetic conservatism. We hypothesized that phylogenetic conservatism in seed traits could help predict the seed germinability, under the assumption that seed traits contain phylogenetic signals. Methods: We measured seed germination percentage and seed morphological traits (seed mass, seed height, and seed surface area) on 34 native species from shortgrass prairie in North America. We supplemented these data with similar data from the literature on 11 more species. We calculated the robustness of the phylogenetic signal of each trait to the number of species sampled. We also compressed the phylogenetic distance matrix to a two-dimensional space, and applied the Akaike information criterion to evaluate the effects of phylogeny on seed germinability prediction models. Key results: We found weak but significant phylogenetic signals in seed mass and seed height in the full data set. These phylogenetic signals were not able to improve seed germinability prediction model performance among shortgrass prairie species. Our robustness tests of phylogenetic signals using random sub-sampling showed that the detection rate of phylogenetic signals in seed mass was increased along with the expansion of species pool, and nearly 100% at 40 species. However, the detection rate of phylogenetic signals in seed height was constantly low, around 20%. Conclusion: When the phylogenetic signals are weak, the phylogenetic position does not improve germinability prediction model performance. Therefore, phylogenetic signals detected during a single species pool calculation may not accurately reflect the phylogenetic conservatism of the trait in a plant community. We suggest testing for robustness of phylogenetic signals using random sub-sampling tests.en_US
dc.identifier.citationChen Y, Schwilk DW, Cox RD and Johnson MG (2022) Including phylogenetic conservatism of shortgrass prairie restoration species does not improve species germinability prediction. Front. Ecol. Evol. 10:983192. doi: 10.3389/fevo.2022.983192en_US
dc.identifier.urihttps://doi.org/10.3389/fevo.2022.983192
dc.identifier.urihttps://hdl.handle.net/2346/90833
dc.language.isoengen_US
dc.subjectEcological restorationen_US
dc.subjectPhylogenetic comparative methoden_US
dc.subjectSeed germinability predictionen_US
dc.subjectPhylogenetic conservatismen_US
dc.subjectPhylogenetic signalen_US
dc.titleIncluding phylogenetic conservatism of shortgrass prairie restoration species does not improve species germinability predictionen_US
dc.typeArticleen_US

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