論文 - 詳細
| RRC ID | 82272 |
|---|---|
| 著者 | Brightly WH, Crifò C, Gallaher TJ, Hermans R, Lavin S, Lowe AJ, Smythies CA, Stiles E, Wilson Deibel P, Strömberg CAE. |
| タイトル | Palms of the past: can morphometric phytolith analysis inform deep time evolution and palaeoecology of Arecaceae? |
| ジャーナル | Ann Bot |
| Abstract |
BACKGROUND AND AIMS:Palm fossils are often used as evidence for warm and wet palaeoenvironments, reflecting the affinities of most modern palms. However, several extant palm lineages tolerate cool and/or arid climates, making a clear understanding of the taxonomic composition of ancient palm communities important for reliable palaeoenvironmental inference. However, taxonomically identifiable palm fossils are rare and often confined to specific facies. Although the resolution of taxonomic information they provide remains unclear, phytoliths (microscopic silica bodies) provide a possible solution because of their high preservation potential under conditions where other plant fossils are scarce. We thus evaluate the taxonomic and palaeoenvironmental utility of palm phytoliths. METHODS:We quantified phytolith morphology of 97 modern palm and other monocot species. Using this dataset, we tested the ability of five common discriminant methods to identify nine major palm clades. We then compiled a dataset of species' climate preferences and tested if they were correlated with phytolith morphology using a phylogenetic comparative approach. Finally, we reconstructed palm communities and palaeoenvironmental conditions at six fossil sites. KEY RESULTS:Best-performing models correctly identified phytoliths to their clade of origin only 59 % of the time. Although palms were generally distinguished from non-palms, few palm clades were highly distinct, and phytolith morphology was weakly correlated with species' environmental preferences. Reconstructions at all fossil sites suggested that palm communities were dominated by Trachycarpeae and Areceae, with warm, equable climates and high, potentially seasonal rainfall. However, fossil site reconstructions had high uncertainty and often conflicted with other climate proxies. CONCLUSIONS:While phytolith morphology provides some distinction among palm clades, caution is warranted. Unlike prior spatially restricted studies, our geographically and phylogenetically broad study indicates phytolith morphology may not reliably differentiate most palm taxa in deep time. Nevertheless, it reveals distinct clades, including some likely to be palaeoenvironmentally informative. |
| 巻・号 | 134(2) |
| ページ | 263-282 |
| 公開日 | 2024-4-30 |
| DOI | 10.1093/aob/mcae068 |
| PII | 7660190 |
| 解説 | J-OBIS data were referenced. BiodiC-J data were referenced. |
| PMID | 38687211 |
| PMC | PMC11232524 |
| MeSH | Arecaceae* / anatomy & histology Arecaceae* / physiology Biological Evolution* Climate Fossils* / anatomy & histology Phylogeny* |
| IF | 4.005 |
| リソース情報 | |
| GBIF | Vascular plants database of Atsugi City Museum Plant specimens of Ishikawa Museum of Natural History Plant specimens of Toyota City Nature Sanctuary Plant specimens of Tochigi Prefectural Museum Marine Biological Sample Database, JAMSTEC Plant specimens of Otaru Museum Paleobotany collection of National Museum of Nature and Science Plant specimens of Horaiji-san Museum of Natural History Toji K. collection The 6-7th National Survey on the Natural Environment: Vegetation Survey Nagoya-Plants Vascular plant specimens of Akita Prefectural Museum Herbarium, University Archives and Collections, Fukushima University, Japan (FKSE) Angiospermatatophytina Collection of Saitama Museum of Natural History Vascular plant specimens of Iida City Museum Vascular Plant Collection of Natural History Museum and Institute, Chiba Herbarium Specimens of Museum of Nature and Human Activities, Hyogo Pref., Japan Spermatophyta collection of Museum of Natural and Environmental History, Shizuoka Ibaraki Nature Museum, Vascular Plants collection Vascular plant specimens of National Museum of Nature and Science (TNS) Plant Specimens of Kurashiki Museum of Natural History Herbarium Specimens of Tokushima Prefectural Museum, Japan Herbarium of Kitakyushu Museum of Natural History and Human History Vascular Plants Collection of Sagamihara City Museum Plant specimens in the Museum of Nature and Human Activities, Hyogo Prefecture, Japan Plant specimens deposited in Osaka Museum of Natural History, Japan Vascular Plant Specimens of Kochi Prefectural Makino Botanical Garden Vascular Plant Specimen database of Kanagawa Prefectural Museum of Natural History Gunma Museum of Natural History, Vascular Plant Specimen Occurrence data of woody plants in the Ginkakuzi-san National Forest Vascular plants collection of Hiratsuka City Museum Herbarium of Shinshu University Plant specimens of Parthenon Tama Museum (PTHM) Tracheophyta collection of Biodiversity Center of Japan, Ministry of the Environment Plant specimens of Toyota City Nature Sanctuary (from non-museum circle) Vascular plant specimens of Toyama Science Museum Vascular Plant Specimens of the RYU Herbarium (Faculty of Science, University of the Ryukyus) Herbarium Specimens of Bonin and Ryukyu Islands |