Spatio-Temporal Variation of Salt Marsh Seedling Establishment in Relation to the Abiotic and Biotic Environment

Noè,; Grégory,

doi:10.2307/3236674

Cited by 41 publications

(36 citation statements)

References 7 publications

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“…Local rainfall may still be important especially for the seed establishment phase and for species in uplands directly adjacent to tidal wetlands [30], but we were not able to detect its influence on the change in sub-dominant abundance at these sites. This is likely because the mix of runoff from the Sierra Nevada and tidal inundation are the primary sources of water in tidal wetlands in the SF Bay, and these tidal waters have a bigger impact on species identity than local rainfall patterns [40].…”

Section: Discussioncontrasting

confidence: 39%

“…Furthermore, since our data is observational, it is challenging to discern the precise mechanisms underlying the trends we observed. Notably, our data do not include information on soil porewater salinity, which has been shown to influence both the germination [30] and distribution of tidal wetland species [42], however it is likely that the salinity of tidal waters measured in the SF Bay relates to soil salinity at the sites. While China Camp is the most commonly used reference site in the region, Muzzi Marsh is situated next to another historic marsh in the Corte Madera Ecological Reserve that may have different species dynamics.…”

Section: Discussionmentioning

confidence: 99%

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Climate Variability Structures Plant Community Dynamics in Mediterranean Restored and Reference Tidal Wetlands

Chapple

Faber

Suding

et al. 2017

Water

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Abstract:In Mediterranean regions and other areas with variable climates, interannual weather variability may impact ecosystem dynamics, and by extension ecological restoration projects. Conditions at reference sites, which are often used to evaluate restoration projects, may also be influenced by weather variability, confounding interpretations of restoration outcomes. To better understand the influence of weather variability on plant community dynamics, we explore change in a vegetation dataset collected between 1990 and 2005 at a historic tidal wetland reference site and a nearby tidal wetland restoration project initiated in 1976 in California's San Francisco (SF) Bay. To determine the factors influencing reference and restoration trajectories, we examine changes in plant community identity in relation to annual salinity levels in the SF Bay, annual rainfall, and tidal channel structure. Over the entire study period, both sites experienced significant directional change away from the 1990 community. Community change was accelerated following low salinity conditions that resulted from strong El Niño events in 1994-1995 and 1997-1998. Overall rates of change were greater at the restoration site and driven by a combination of dominant and sub-dominant species, whereas change at the reference site was driven by sub-dominant species. Sub-dominant species first appeared at the restoration site in 1996 and incrementally increased during each subsequent year, whereas sub-dominant species cover at the reference site peaked in 1999 and subsequently declined. Our results show that frequent, long-term monitoring is needed to adequately capture plant community dynamics in variable Mediterranean ecosystems and demonstrate the need for expanding restoration monitoring and timing restoration actions to match weather conditions.

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Section: Discussioncontrasting

confidence: 39%

Section: Discussionmentioning

confidence: 99%

Climate Variability Structures Plant Community Dynamics in Mediterranean Restored and Reference Tidal Wetlands

Chapple

Faber

Suding

et al. 2017

Water

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“…Species establishment can be highly influenced by both the climate and competitive environment during the year of germination (Noe and Zedler 2001). Even though seedling survival constrains future community composition, effects of climate on seedling growth are often age-dependent (Pérez-Ramos et al 2010).…”

Section: Discussionmentioning

confidence: 99%

Community assembly responses to warming and increased precipitation in an early successional forest

2012

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Citation: Rollinson, C. R., M. W. Kaye, and L. P. Leites. 2012. Community assembly responses to warming and increased precipitation in an early successional forest. Ecosphere 3(12):122. http://dx.doi.org/10.1890/ES12-00321.1Abstract. Experimental climate manipulations provide the opportunity to link predicted changes in climate to the process of community assembly. We studied plant community assembly of a recently harvested forest exposed to three years of experimental 28C warming and 20% increased precipitation. By the end of the experiment, trees were the only functional group that shifted composition in response to warming and precipitation treatments (p ¼ 0.03), while the composition of the grass, forbs, and shrub/small tree/vine functional groups were unresponsive. Individual species within groups were associated with specific treatments, but did not result in a predictable community composition shift. Temporal dynamics of functional group cover were more sensitive to treatment effects than single, static measures of plant community responses such as biomass. Both static and dynamic plant analyses revealed interactive effects of warming and increased precipitation on cover and biomass of grass and all plants together (grass cover p , 0.01, grass biomass p ¼ 0.02, total cover p , 0.01, total biomass p ¼ 0.05). Short forb cover was negatively affected by increased precipitation throughout our experiment (p ¼ 0.03). Grass, tree, and shrub/ small tree/vine functional groups showed independent year effects on cover that can be attributed to successional development of the forest community (all p 0.01). Random forest modeling indicated that cover of other plant functional groups and static plot-level variables such as plot location and components of soil texture were often the most important predictors of cover for a given functional group, while temperature and moisture availability measures were the least important. Importance of predictors of functional group cover varied greatly among random forest models from different treatments, suggesting that diverse environmental factors constrain functional group cover and may provide resilience of community assembly to climate change.

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“…Early life-history components are very important for the distribution of wetland plants (Weiher and Keddy, 1995;Nicol and Ganf, 2000), especially annual plants (Noe and Zedler, 2001). This study attempts to determine the effects of water level and soil type on the survival rate and growth of P. thunbergii in early growth stages.…”

Section: Introductionmentioning

confidence: 99%

Effects of water level and soil type on the survival and growth of Persicaria thunbergii during early growth stages

Kim

2013

Ecological Engineering

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a b s t r a c tWe investigate the effects of water level and soil type on the survival and growth of Persicaria thunbergii during the recruitment phase. Plants in four early growth stages (uprooted seed, seedling with cotyledon, seedlings with two and four foliage leaves) were planted under combined conditions of six water levels (dry, wet, flooding) and two soil types (loamy sand, sand). Six weeks later, the survival rates, plant heights and biomass were measured. The uprooted seeds survived under water levels lower than 6 cm. The seedlings in other growth stages could not overcome water levels twice their height. Under dry conditions, the plant height and biomass were higher in sand than in loamy sand, yet under saturated conditions, the opposite result was obtained. The water level relative to seedling height was the most critical factor for early survival, and seedling growth was also affected by soil type. Thus, P. thunbergii in constructed wetlands can be removed during the seedling recruitment phase using water level regulation.

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Spatio-Temporal Variation of Salt Marsh Seedling Establishment in Relation to the Abiotic and Biotic Environment

Cited by 41 publications

References 7 publications

Climate Variability Structures Plant Community Dynamics in Mediterranean Restored and Reference Tidal Wetlands

Climate Variability Structures Plant Community Dynamics in Mediterranean Restored and Reference Tidal Wetlands

Community assembly responses to warming and increased precipitation in an early successional forest

Effects of water level and soil type on the survival and growth of Persicaria thunbergii during early growth stages

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