Microsite effects on forest regeneration in a bottomland swamp in western New York<sup>1</sup>

Blood, Laura E.; Titus, Jonathan H.

doi:10.3159/08-ra-062.1

Cited by 18 publications

(17 citation statements)

References 57 publications

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“…(green ash), and Ulmus americana L. (American elm) were used in this study. These species were used because they dominate the woody seedling, sapling, and canopy layers of Bonita Swamp and in many other swamps throughout western New York [5]. The seeds of these three species have epigeal germination.…”

Section: Methodsmentioning

confidence: 99%

“…These tree species were selected because of their prevalence in Bonita Swamp, which is located along the Chadakoin River near Jamestown, [5]. Bonita Swamp is microtopographically complex with small differences in elevation dictating the time an area is inundated, which has a strong influence on species regeneration.…”

Section: Methodsmentioning

confidence: 99%

“…Schimp. occur on raised microtopographic features and cover 30% of the swamp floor [5]. Bare soil, wood, and litter also occupy raised microsites.…”

Section: Methodsmentioning

confidence: 99%

“…An important aspect of a microsite, especially in wetlands, is microtopographic relief. In wetlands microsites with slight differences in elevation (centimeters) may differ in flooding duration, moisture retention, and availability, substrate composition and a host of other factors [4,5]. Thus, minor differences in elevation in a swamp may have a powerful effect on germination and survival due to differences in inundation period and moisture availability.…”

Section: Introductionmentioning

confidence: 99%

“…Influencing differences in germination and survival elevation plays a role in tree seed germination and seedling survival and thereby influences species composition of the swamp forest [5]. That is, minor differences in elevation are different germination or regeneration niches [1,6].…”

Section: Introductionmentioning

confidence: 99%

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Moss and Soil Substrates Interact with Moisture Level to Influence Germination by Three Wetland Tree Species

et al. 2012

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To assess germination success in different microsites of a forested wetland environment, seeds of three common western New York wetland tree species, Acer x freemanii, Fraxinus pennsylvanica, and Ulmus americana, were sown into flats in the greenhouse with three substrates (mosses Hypnum imponens or Thuidium delicatulum or bare soil) and three hydrological conditions (wet, moist, or dry) in a factorial design. For the three species both treatment regimes and the interaction were highly significant, except for Acer, in which the substrate regime was not significant. Fraxinus germination had the highest tolerance for wet conditions and lowest for dry conditions followed by Acer and then Ulmus. Significant interactions showed that the effect of hydrological regime on germination is influenced by substrate type. Moss decreased germination under drier conditions and increased germination under wet conditions by lifting the seeds away from the soil and creating drier conditions than on bare soil. It is also possible that interspecific competition for moisture played a role in decreasing germination under dry conditions. By influencing the regeneration niche for three major tree species of swamps in the northeastern United States, the bryophyte layer plays an important role in determining community composition.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…Schimp. occur on raised microtopographic features and cover 30% of the swamp floor [5]. Bare soil, wood, and litter also occupy raised microsites.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Moss and Soil Substrates Interact with Moisture Level to Influence Germination by Three Wetland Tree Species

et al. 2012

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A little relief: Ecological functions and autogenesis of wetland microtopography

et al. 2020

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Microtopography, or the small‐scale variation in ground surface height (10−1–100 m) over short (100–102 m) spatial scales, is a ubiquitous feature of wetlands globally. This variation in elevation, characterized by local high (“hummocks”) and low (“hollows”) patches, is more structured than what is observed in uplands, and is intertwined with concordantly structured spatiotemporal variability in hydrologic regimes and associated ecological processes. The importance of microtopography in wetlands is manifold, with critical influence on local hydrological, biogeochemical, and biological processes. Further, the creation and maintenance of wetland microtopography is a balance between activation processes (i.e., those that induce random elevation variation) and autogenic reinforcement processes (i.e., those that provide the feedbacks necessary for the persistence of microtopography). While there are many mechanisms that create vertical structure (e.g., tree falls, accumulation of roots and soil organic matter, and sediment deposition), they all yield a similar core feedback to enhance and sustain microtopographic structure. Finally, microtopography contributes to spatial patterning that confers emergent ecosystem‐scale functions such as hydrologic storage and flows, carbon cycling, organism dispersal, and biodiversity. There is an ongoing need to study the origins and implications of this fine‐scale variation in elevation, as well as the utility of including microtopography in model predictions and ecological restoration efforts. This article is categorized under: Water and Life > Conservation, Management, and Awareness

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Increasing topographic influence on vegetation structure during primary succession

Marler

Moral

2018

Plant Ecol

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Microsite effects on forest regeneration in a bottomland swamp in western New York¹

Cited by 18 publications

References 57 publications

Moss and Soil Substrates Interact with Moisture Level to Influence Germination by Three Wetland Tree Species

Moss and Soil Substrates Interact with Moisture Level to Influence Germination by Three Wetland Tree Species

A little relief: Ecological functions and autogenesis of wetland microtopography

Increasing topographic influence on vegetation structure during primary succession

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Microsite effects on forest regeneration in a bottomland swamp in western New York1

Cited by 18 publications

References 57 publications

Moss and Soil Substrates Interact with Moisture Level to Influence Germination by Three Wetland Tree Species

Moss and Soil Substrates Interact with Moisture Level to Influence Germination by Three Wetland Tree Species

A little relief: Ecological functions and autogenesis of wetland microtopography

Increasing topographic influence on vegetation structure during primary succession

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Microsite effects on forest regeneration in a bottomland swamp in western New York¹