Preburn History and Seasonal Burning Effects on the Soil Seed Bank in the Fescue Prairie

Romo, J. T.; Gross, D. V.

doi:10.1674/0003-0031-165.1.74

Cited by 7 publications

(2 citation statements)

References 42 publications

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“…Frequency of wildfires and intensity of human‐induced fires are expected to increase with increased amount of combustible material (Valkó et al ). Fire has positive effects on seed bank density, species diversity, and evenness of native species 1 year after fire, but later on these effects diminish (Romo & Gross ). A study in the same region (Ren & Bai ) proved that fire components, such as ash and smoke, supported native forb species, so their soil seed bank density and species richness may increase due to increased fire frequency.…”

Section: Resultsmentioning

confidence: 99%

Grassland seed bank and community resilience in a changing climate

Kiss

Deák

Török

et al. 2018

Restoration Ecology

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Plant dispersal and persistence strategies play an increasingly important role in the face of changing climate. Evaluating the restoration potential of soil seed banks as an important component of community resilience is crucial for developing effective grassland conservation and restoration strategies under climate change. Soil seed banks can act as a source for vegetation recovery by preserving species and supporting their establishment by assisting persistence and recolonization. In a systematic review of field and experimental seed bank studies, we evaluated the potential of seed banks in buffering climatic extremities and fluctuations. We found 42 papers testing the first‐order (temperature and precipitation changes) and second‐order effects of climate change (flooding and fire) on the seed bank in grasslands. We showed that persistent seed banks can support passive restoration especially in wetlands and habitats where unpredictable and frequent disturbance was typical in the historical timescale. We found that active restoration by seed addition will be most important in less disturbance‐adapted habitats characterized by species with transient seed banks. In such cases, the introduction of native matrix species that can tolerate the predicted climatic change should be prioritized at degraded sites.

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Section: Resultsmentioning

confidence: 99%

Grassland seed bank and community resilience in a changing climate

Kiss

Deák

Török

et al. 2018

Restoration Ecology

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“…Historically, fire regulates plant communities in Fescue Prairie (Bailey and Anderson, 1978; Anderson and Bailey, 1980). Seedling recruitment of many species in Fescue Prairie can be promoted by fire (Romo and Gross, 2011). In fire-prone habitats, many propagules, seeds in particular, have evolved strategies to benefit from various factors associated with fire (Van Staden et al , 2000).…”

Section: Introductionmentioning

confidence: 99%

Evidence of different compounds in smoke derived from legumes and grasses acting on seed germination and seedling emergence

2017

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Our previous study showed that smoke derived from alfalfa (Medicago sativa) caused different germination responses compared with that from prairie hay (Festuca hallii) and wheat straw (Triticum aestivum), but the mechanism remained unclear. In this study, we used Salad Bowl lettuce (Lactuca sativa) as a quick bioassay to trace the active compounds in each of these three smoke solutions. Column chromatography and high performance liquid chromatography (HPLC) were used to separate and identify active fractions. Seeds of four species from Fescue Prairie were primed for 24 h at room temperature in darkness using serial dilutions of separated active fractions, as well as karrikinolide (KAR1). After priming, seeds were dried at room temperature in darkness for 7 days and subsequently incubated at 10/0°C or 25/15°C in 12 h light–12 h dark or 24 h darkness for 49 days. KAR1was in the smoke made from prairie hay, and wheat straw, but was absent in alfalfa smoke. Priming in KAR1solutions increased germination of three native species. Priming in highly concentrated KAR1reduced radicle length ofCirsium arvense, the only non-native species. Even though KAR1has the potential to enhance regeneration of native species in the Fescue Prairie, KAR1is not universally present in smoke derived from different plant materials. Unknown compound(s) in smoke derived from legumes remain to be identified.

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Seeds

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Preburn History and Seasonal Burning Effects on the Soil Seed Bank in the Fescue Prairie

Cited by 7 publications

References 42 publications

Grassland seed bank and community resilience in a changing climate

Grassland seed bank and community resilience in a changing climate

Evidence of different compounds in smoke derived from legumes and grasses acting on seed germination and seedling emergence

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