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Baldwin, Andrew H.; Derico, Ellen F.

doi:10.1023/a:1009549117419

Cited by 40 publications

(6 citation statements)

References 30 publications

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“…The differences in species richness align with reports that engineered or restored areas often exhibit more species than their natural counterparts (Ehrenfeld 2000). The differences in species composition and richness may include intentionally or unintentionally introduced plants, the response of plant communities to substrate conditions, or reflect disturbance patterns associated with the restoration design and implementation (Baldwin and Derico 1999).…”

Section: Vegetation Community Assessment Summarysupporting

confidence: 77%

An assessment of long-term, multipurpose ecosystem functions and engineering benefits derived from historical dredged sediment beneficial use projects

Berkowitz¹,

Beane²,

Philley³

et al. 2021

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The beneficial use of dredged materials improves environmental outcomes while maximizing navigation benefits and minimizing costs, in accordance with the principles of the Engineering With Nature® (EWN) initiative. Yet, few studies document the long-term benefits of innovative dredged material management strategies or conduct comprehensive life-cycle analysis because of a combination of (1) short monitoring time frames and (2) the paucity of constructed projects that have reached ecological maturity. In response, we conducted an ecological functional and engineering benefit assessment of six historic (>40 years old) dredged material–supported habitat improvement projects where initial postconstruction beneficial use monitoring data was available. Conditions at natural reference locations were also documented to facilitate a comparison between natural and engineered landscape features. Results indicate the projects examined provide valuable habitat for a variety of species in addition to yielding a number of engineering (for example, shoreline protection) and other (for example, carbon storage) benefits. Our findings also suggest establishment of ecological success criteria should not overemphasize replicating reference conditions but remain focused on achieving specific ecological functions (that is, habitat and biogeochemical cycling) and engineering benefits (that is, storm surge reduction, navigation channel maintenance) achievable through project design and operational management.

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Section: Vegetation Community Assessment Summarysupporting

confidence: 77%

An assessment of long-term, multipurpose ecosystem functions and engineering benefits derived from historical dredged sediment beneficial use projects

Berkowitz¹,

Beane²,

Philley³

et al. 2021

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“…In our study, the abundance of annual over perennial species, in post-flood (Fig. 3S), was due to annual species producing large quantities of seeds (Oliveira et al 2015;Souza et al 2016), which disperse readily (Cohen 1967;Bonis et al 1995;Baldwin and Derico 1999). Nonetheless, it is evident that after a flood, there is an increase in emergence of annuals (Souza et al 2016).…”

Section: Discussionmentioning

confidence: 52%

Seed bank of seasonally flooded grassland: experimental simulation of flood and post-flood

et al. 2017

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Wetland seed banks comprise the propagules of plant species that have species-specific germination requirements for germination in either flooded or dry conditions. At the community level, wetland structure and succession during and after a seasonal flooding event depends upon the early lifehistory requirements of species, including germination under flooded and dry conditions. We examined the effects of simulated flood and post-flood scenarios on seedling emergence from a seed bank of seasonally flooded grassland in the Pantanal, Brazil. Field samplings were conducted in both wet and dry seasons, both of which were subject to flood and post-flood conditions. A total of 70 species emerged from the seed bank, dominated by Poaceae and Cyperaceae. Sixteen species were exclusive to the wet and one exclusive to the dry season. The richness of perennial species was higher under flood conditions, while the richness of annuals was greater postflood. In general, the aquatic and amphibious species exhibited a significant germination response to flooding. Terrestrial species only germinated in post-flood conditions, with higher richness in the dry season. Four species had high seedling abundance in both treatments. The capacity of regeneration by seeds is high in these grasslands and can be increased by

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“…Secondary seed dispersal has been quantified for relatively few species in wetland ecosystems, but where it has been examined, the seed banks in tidal and nontidal wetlands have been shown to be dynamic in space and time in natural (Parker and Leck, 1985;Leck and Simpson, 1995;Schneider and Sharitz, 1988;Huiskes et al, 1995;Hampe, 2004;Peterson and Baldwin, 2004a) and restored (Baldwin and DeRico, 1999;Baldwin, 2004;Leck and Leck, 2005) wetlands. The general spatial pattern for seeds in tidal wetlands appears to be the secondary dispersal of seeds toward higher elevation sites, particularly high marsh sites near the upland-wetland boundary (Leck and Graveline, 1979;Parker and Leck, 1985;Huiskes et al, 1995).…”

Section: Discussionmentioning

confidence: 99%

Hydrochory as a determinant of genetic distribution of seeds within Hibiscus moscheutos (Malvaceae) populations

Shimamura

Kachi²,

Kudoh³

et al. 2007

American J of Botany

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Seed dispersal is a major determinant of the spatial genetic structure of plant populations. In this study, we evaluated the role of distinct hydrologic regimes in determining the spatial genetic structure of the seed bank of the wetland plant Hibiscus moscheutos. We analyzed seeds in surface soil samples collected in the autumn and the following spring by determining their allozyme genotypes and estimated the pattern in seed movements during flooding. We selected study sites in nontidal and tidal wetlands with different flooding regimes. One nontidal site had no flooding, while the second nontidal site was inundated for most of the year. One tidal wetland site flooded with almost every tide, and a second tidal site was inundated at moderate frequency. Genetic makeup of the seed bank at the nonflooded site changed little between seasons. Secondary seed dispersal altered absolute allele frequencies at the other three sites, with the greatest change occurring at the two tidally influenced sites. This study demonstrates that secondary hydrochory influences the genetic composition of the seed bank and that hydrologic conditions play an important role in determining the local patterns in seed movements.

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Cited by 40 publications

References 30 publications

An assessment of long-term, multipurpose ecosystem functions and engineering benefits derived from historical dredged sediment beneficial use projects

An assessment of long-term, multipurpose ecosystem functions and engineering benefits derived from historical dredged sediment beneficial use projects

Seed bank of seasonally flooded grassland: experimental simulation of flood and post-flood

Hydrochory as a determinant of genetic distribution of seeds within Hibiscus moscheutos (Malvaceae) populations

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