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Abbas AM, Pickart AJ, Goldsmith LM, Davenport DN, Newby B, Muñoz-Rodríguez AF, Grewell BJ, Castillo JM. Seed bank persistence of a South American cordgrass in invaded northern Atlantic and Pacific Coast estuaries. AOB PLANTS 2021; 13:plab014. [PMID: 34007435 PMCID: PMC8112770 DOI: 10.1093/aobpla/plab014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 04/04/2021] [Indexed: 06/12/2023]
Abstract
Invasive alien plant species impart considerable impacts that contribute to the decline of biodiversity worldwide. The ability of an invasive species to overcome barriers to establish and spread in new environments, and the long-term effects of plant invasions supporting their persistence are keys to invasion success. The capacity of introduced species to form soil seed banks can contribute to their invasiveness, yet few studies of invaders have addressed seed bank dynamics. Improved knowledge of this recruitment process can improve conservation management. We studied temporal and spatial changes in soil seed bank characteristics of the cordgrass Spartina densiflora from two continental invaded ranges. In the Odiel Marshes (Southwest Iberian Peninsula), S. densiflora formed transient seed banks (<1 year). At Humboldt Bay Estuary (California), viable seeds persisted for at least 4 years though the germination percentage fell abruptly after the first year from 29 % to less than 5 % of remaining viable seeds. Total soil seed bank density increased with S. densiflora above-ground cover in both estuaries, pointing to the transient component of the seed bank as a critical component of vegetation dynamics during S. densiflora invasion. Even so, seed densities as high as c. 750 seeds m-2 in Odiel Marshes and c. 12 400 seeds m-2 in Humboldt Bay were recorded in some plots without fruiting S. densiflora plants. S. densiflora spikelet (dispersal unit) density was more than double close to the sediment surface than deeper within soil. Our study shows the importance of evaluating seed banks during the design of invasive species management since seed bank persistence may vary among invaded sites, and can affect the timing and duration required for desired management outcomes.
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Affiliation(s)
- Ahmed M Abbas
- Department of Biology, College of Science, King Khalid University61413, Abha, Saudi Arabia
- Department of Botany and Microbiology, Faculty of Science, South Valley University, 83523, Qena, Egypt
| | - Andrea J Pickart
- U.S. Fish and Wildlife Service, 6800 Lanphere Rd. Arcata, CA 95521, USA
| | | | | | - Britney Newby
- U.S. Fish and Wildlife Service, 6800 Lanphere Rd. Arcata, CA 95521, USA
| | - Adolfo F Muñoz-Rodríguez
- Departamento de Ciencias Integradas, Fuerzas Armadas Ave., Campus El Carmen, Universidad de Huelva, 21071, Huelva, Spain
| | - Brenda J Grewell
- USDA-Agricultural Research Service, Invasive Species and Pollinator Health Research Unit, Department of Plant Sciences MS-4, University of California, Davis, CA 95616, USA
| | - Jesús M Castillo
- Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, Apartado 1095, 41080, Sevilla, Spain
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Bao F, Elsey-Quirk T, de Assis MA, Arruda R, Pott A. Seasonal flooding, topography, and organic debris interact to influence the emergence and distribution of seedlings in a tropical grassland. Biotropica 2018. [DOI: 10.1111/btp.12550] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Francielli Bao
- Instituto de Biociências; Universidade Estadual Paulista; Rio Claro SP Brazil
| | - Tracy Elsey-Quirk
- Department of Oceanography and Coastal Sciences; Louisiana State University; Baton Rouge LA USA
| | | | - Rafael Arruda
- Instituto de Ciências Naturais; Humanas e Sociais; Universidade Federal de Mato Grosso; Sinop MT Brazil
| | - Arnildo Pott
- PPG Biologia Vegetal; Universidade Federal de Mato Grosso do Sul; Campo Grande MS Brazil
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Repeated Drought Alters Resistance of Seed Bank Regeneration in Baldcypress Swamps of North America. Ecosystems 2017. [DOI: 10.1007/s10021-017-0143-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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