Florida’s fiery subtropical grasslands: Growth forms, belowground organs, and post-fire recovery strategies
Rattachement africain : us, cz. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Abstract Fire-adaptive traits in plants of tropical and subtropical grassy ecosystems have been the subject of considerable global research, but only recently studied in pyrogenic Florida subtropical grasslands. Plant growth forms, belowground organs, and post-fire recovery strategies were studied for 198 grassland specialists in peninsular Florida. Community types (dry-mesic, mesic, wet-mesic, and wet) were sampled with 1m2 plots along the edaphic-hydrologic gradient and the association between these variables and fire-related plant traits was tested using fourth-corner analysis. Caulescent herbs (43), cespitose graminoids (27), and rosette herbs (31) are the most common growth forms among species sampled. Plants with epigeogenous and hypogeogenous rhizomes dominate the sample plots, including matrix graminoids, shrub geoxyles, and an acaulescent rhizomatous fire-resilient palm (Serenoa repens). Most species (163; 82%) exhibit resprouting, including 30 facultative resprouters and 133 obligate resprouters. All woody rhizomatous species are obligate resprouters, and 35 ephemeral herbaceous species are obligate reseeders. Community type was a better predictor of species abundances than hydrology, however, hydrology was significantly associated with species traits measured, particularly rhizome texture, with woody rhizomes prevalent in all but the wet sites. Belowground organs (xylopodia, geoxylic suffructices) and growth form were associated with frequent fire and phylogeny, suggesting fire regime as a driver of community phylogenetic diversity. Persistence, rapid resilience and co-occurrence of geoxyles align Florida subtropical grasslands with other global geoxyle grasslands. The old-growth, pyrogenic grassy ecosystems of peninsular Florida are the center of geoxyle diversification on the southeastern US coastal plain.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Florida’s fiery subtropical grasslands: Growth forms, belowground organs, and post-fire recovery strategies
- Date Crossref
- 03/02/2024
- Éditeur
- Springer Science and Business Media LLC
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Avon (United States) pays non établi dans la noticeEntreprise
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Czech Academy of Sciences pays non établi dans la noticeStructure de recherche
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MultiCare Gig Harbor Medical Park pays non établi dans la noticeÉtablissement de santé
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AdventHealth Sebring pays non établi dans la noticeÉtablissement de santé
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University of Tampa pays non établi dans la noticeUniversité ou école supérieure
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University of Colorado Boulder Museum of Natural History pays non établi dans la noticeUniversité ou école supérieure
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Museum of Boulder pays non établi dans la noticeInstitution
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Avon Park Air Force Range pays non établi dans la noticeInstitution
Avon (United States), Czech Academy of Sciences et MultiCare Gig Harbor Medical Park, avec 5 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.