論文 - 詳細
| RRC ID | 82241 |
|---|---|
| 著者 | Brightly WH, Bedoya AM, Carlson MM, Rottersman MG, Strömberg CAE. |
| タイトル | Correlated evolution of dispersal traits and habitat preference in the melicgrasses. |
| ジャーナル | Am J Bot |
| Abstract |
PREMISE:Seed dispersal is a critical process impacting individual plants and their communities. Plants have evolved numerous strategies and structures to disperse their seeds, but the evolutionary drivers of this diversity remain poorly understood in most lineages. We tested the hypothesis that the evolution of wind dispersal traits within the melicgrasses (Poaceae: Meliceae Link ex Endl.) was correlated with occupation of open and disturbed habitats. METHODS:To evaluate wind dispersal potential, we collected seed dispersal structures (diaspores) from 24 melicgrass species and measured falling velocity and estimated dispersal distances. Species' affinity for open and disturbed habitats were recorded using georeferenced occurrence records and land cover maps. To test whether habitat preference and dispersal traits were correlated, we used phylogenetically informed multilevel models. RESULTS:Melicgrasses display several distinct morphologies associated with wind dispersal, suggesting likely convergence. Open habitat taxa had slower-falling diaspores, consistent with increased wind dispersal potential. However, their shorter stature meant that dispersal distances, at a given wind speed, were not higher than those of their forest-occupying relatives. Species with affinities for disturbed sites had slower-falling diaspores and greater wind dispersal distances, largely explained by lighter diaspores. CONCLUSIONS:Our results are consistent with the hypothesized evolutionary relationship between habitat preference and dispersal strategy. However, phylogenetic inertia and other plant functions (e.g., water conservation) likely shaped dispersal trait evolution in melicgrasses. It remains unclear if dispersal trait changes were precipitated by or predated changing habitat preferences. Nevertheless, our study provides promising results and a framework for disentangling dispersal strategy evolution. |
| 巻・号 | 111(10) |
| ページ | e16406 |
| 公開日 | 2024-9-18 |
| DOI | 10.1002/ajb2.16406 |
| 解説 | BiodiC-J data were referenced. |
| PMID | 39294109 |
| MeSH | Biological Evolution* Ecosystem* Phylogeny Poaceae / genetics Poaceae / physiology Seed Dispersal* Wind |
| IF | 3.038 |
| リソース情報 | |
| GBIF | Long-term fauna and flora records of the experimental forests of the Forest Research Station of Hokkaido University, Japan Plant specimens of Toyota City Nature Sanctuary Plant specimens of Otaru Museum Plant specimens of Komatsu City Museum The 6-7th National Survey on the Natural Environment: Vegetation Survey Plant specimens of Parthenon Tama Museum (PTHM) Vascular plant specimens of Omachi Alpine Museum Vascular plant specimens of Akita Prefectural Museum Herbarium, University Archives and Collections, Fukushima University, Japan (FKSE) Angiospermatatophytina Collection of Saitama Museum of Natural History Herbarium Specimens of Museum of Nature and Human Activities, Hyogo Pref., Japan 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 Spermatophyta specimens of Iwate Prefectural Museum Herbarium of Shinshu University Plant specimens in the Museum of Nature and Human Activities, Hyogo Prefecture, Japan Vascular Plants Collection of Sagamihara City Museum Plant specimens of Obihiro Centennial City Museum Plant specimens deposited in Osaka Museum of Natural History, Japan Vascular plant specimens of Nagano Environmental Conservation Research Institute, Nagano Prefecture Plant Observation Records of Japan Vascular Plant Specimens of Kochi Prefectural Makino Botanical Garden Vascular plant specimens of Toyama Science Museum Plant specimens of Kiritappu Wetland Center Vascular Plant Specimen database of Kanagawa Prefectural Museum of Natural History Gunma Museum of Natural History, Vascular Plant Specimen Plant specimens of Kushiro City Museum Vascular plant specimens of Sugadaira Research Station, Mountain Science Center, University of Tsukuba |