The Importance of Microtopography and Nurse Canopy for Successful Restoration Planting of the Slow-Growing Conifer Pilgerodendron uviferum

Bannister, Jan R.; Coopman, Rafael E.; Donoso, Pablo J.; Bauhus, Jürgen

doi:10.3390/f4010085

Cited by 16 publications

(25 citation statements)

References 37 publications

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“…Such deformations at the root collar could explain, at least partially, the higher root collar diameter of seedlings established after shrub removal in our experiment. Also, in upland conditions, Bannister et al () found that 2 years after planting, Pilgerodendron uviferum seedlings established in gaps had higher maximum rates of CO 2 assimilation, suggesting photosynthetic acclimation to high irradiance environments. However, these seedlings did not have higher growth rates (shoot and basal area growth).…”

Section: Discussionmentioning

confidence: 99%

“…Several studies have highlighted the importance of monitoring the early performance of native species planted under different restoration techniques in degraded or burned forests (e.g. Bannister et al ; Donoso et al ; Soto et al , ). Many environmental variables can influence growth and survival in the early phases of tree development.…”

Section: Introductionmentioning

confidence: 99%

“…Many environmental variables can influence growth and survival in the early phases of tree development. For example, on Chiloé Island, microtopography in bog areas and the nurse canopy in upland areas have been found to influence the early performance of P. uviferum planted seedlings (Bannister et al ).…”

Section: Introductionmentioning

confidence: 99%

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Shrub influences on seedling performance when restoring the slow‐growing conifer Pilgerodendron uviferum in southern bog forests

Bannister¹,

Travieso²,

Galindo³

et al. 2019

Restoration Ecology

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Forest restoration is most efficient if it can take advantage of facilitative interactions between established vegetation and planted trees. However, positive and negative interactions have been identified in a number of plant communities. After centuries of anthropogenic fires, forest recovery has been extremely slow in southern bog forests previously dominated by the slow‐growing and vulnerable conifer Pilgerodendron uviferum on Chiloé Island, Chile. Today, the landscape is dominated by secondary shrublands with scattered patches of Sphagnum moss and limited natural tree regeneration. We hypothesized that the retention of secondary shrubs facilitates the early performance of P. uviferum restoration plantings by providing better microsite conditions. To test this hypothesis, we compared the response of seedlings planted on sites prepared at two levels of intervention: after shrubs had been removed or where shrubs were retained. Shrub retention showed a nurse‐plant effect on P. uviferum seedlings 4 years after planting, which resulted in reduced physiological stress (measured as Fv/Fm) for seedlings, as well as reduced browsing. Consequently, the seedlings growing in areas with shrub retention had larger height increment and higher vitality than those in areas where shrubs had been removed. Thus, the more open micro‐site conditions created by shrub removal resulted in generally poorer seedling performance, although seedling mortality—which was low overall (approximately 2–4%)—showed no significant difference between the two levels of intervention. These findings have direct implications for the restoration of slow‐growing conifers that can tolerate extreme wet conditions in highly degraded forests.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Shrub influences on seedling performance when restoring the slow‐growing conifer Pilgerodendron uviferum in southern bog forests

Bannister¹,

Travieso²,

Galindo³

et al. 2019

Restoration Ecology

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“…difieren en algunos aspectos con los presentados para el mismo ensayo por Bannister et al (2013) con 2 años de evaluación. Esto confirma la importancia de mantener este tipo de ensayos en el largo plazo.…”

Section: Enfoques De Restauraciónunclassified

“…Durante todos estos años se ha enfocado el trabajo en tres importantes aspectos relacionados a la restauración: a) entender los procesos ecológicos que ocurren en bosques turbosos inalterados, b) analizar el grado de recuperación natural de los bosques quemados, y c) explorar algunas opciones para su restauración. De este programa de investigación ha surgido información para diversas publicaciones científicas en los últimos años (Bannister, 2012;Bannister et al 2013Bannister et al , 2014Bannister et al 2012) y capítulos de libros (Lara et al 2013(Lara et al , 2014. En el presente trabajo se pretende resumir los principales resultados, experiencias, triunfos y fracasos tratando de estudiar y restaurar bosques alterados de P. uviferum.…”

Section: Introductionunclassified

Recuperar bosques no es solo plantar árboles: Lecciones aprendidas luego de 7 años restaurando bosques de Pilgerodendron Uviferum (D. Don) Florin en Chiloé

Bannister¹

2015

Anales Instituto Patagonia (Chile)

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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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The Importance of Microtopography and Nurse Canopy for Successful Restoration Planting of the Slow-Growing Conifer Pilgerodendron uviferum

Cited by 16 publications

References 37 publications

Shrub influences on seedling performance when restoring the slow‐growing conifer Pilgerodendron uviferum in southern bog forests

Shrub influences on seedling performance when restoring the slow‐growing conifer Pilgerodendron uviferum in southern bog forests

Recuperar bosques no es solo plantar árboles: Lecciones aprendidas luego de 7 años restaurando bosques de Pilgerodendron Uviferum (D. Don) Florin en Chiloé

A little relief: Ecological functions and autogenesis of wetland microtopography

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