Ground Layer Microhabitats Influence Recruitment of Longleaf Pine in an Old-growth Pine Savanna

Blanchard, Matthew D.; Platt, William

doi:10.1674/0003-0031-185.1.15

Cited by 4 publications

(4 citation statements)

References 73 publications

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“…Similar survival in shrubby areas with and without fire might have resulted from the combination of fuel patchiness and low, variable fire intensity in burned areas (Section 2 and Figure 1; Bigelow et al, 2018; Wanthongchai et al, 2013). Structural and compositional differences in fuels affect plant survival in similar pine savannas (Blanchard & Platt, 2021; Crandall & Platt, 2012), and variable fire behavior is conducive to tree survival in general (Higgins et al, 2000). However, pine survival in shrubby environments was not significantly different with or without fire even after removing data from patchy fires, indicating potential for other unquantified drivers of survival, such as mediation of moisture stress (Hutchinson, 1976), which could make juveniles more robust.…”

Section: Discussionmentioning

confidence: 99%

Landscape heterogeneity increases survival of Pinus caribaea var. hondurensis juveniles in a frequently burned, humid savanna

et al. 2022

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We characterized Caribbean pine (Pinus caribaea var. hondurensis) seedling and juvenile survival in lowland Belizean savannas with respect to environment and fire regimes. Plants in open and densely wooded environments had lower survival after fire. We hypothesize that facilitative or correlative mechanisms might promote positive relationships between shrubs and pine survival. Abstract in Spanish is available with online material.

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Section: Discussionmentioning

confidence: 99%

Landscape heterogeneity increases survival of Pinus caribaea var. hondurensis juveniles in a frequently burned, humid savanna

et al. 2022

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“…Frequent prescribed fire decreases overstory tree density (Blanchard and Platt 2021), which in turn supports high bee diversity. Even in the absence of fire, canopy thinning results in increased bee diversity (Odanaka et al 2020).…”

Section: Increasing Canopy Openness In General Increases Bee Diversitymentioning

confidence: 94%

“…Thus, bees are often used as indicators of community response to restoration and disturbance. Fire, in particular, is a natural disturbance necessary for promoting biodiversity and ecosystem health in longleaf pine savannas (Blanchard and Platt 2021). Although the importance of bees is well-known, they are often not explicitly considered when developing fire-management plans (Figure 1).…”

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confidence: 99%

Bees and Fire: How does Fire in Longleaf Pine Savannas Affect Bee Communities?

Mitchell

Weaver

Crandall³

2022

EDIS

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Bees are efficient pollinators known to be key components of healthy forests. Thus, bees are often used as indicators of community response to restoration and disturbances, including fire. In longleaf pine savannas, the open canopies and floral resources that increase bee diversity and abundance are promoted by applying frequent, patchy prescribed fires. This publication is aimed to help fire and natural resource managers, landowners, and interested citizens learn more about the benefits of using fire to promote bee diversity in longleaf pine savannas.

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“…Identifying interactions pertinent to longleaf pine dynamics is also complicated by the unique transitional life stages. Initial longleaf pine establishment depends on finescale habitat conditions (e.g., soil moisture, exposed soil) for successful germination and seedling emergence [24,25]. Following the initial seedling stage, longleaf pines have a characteristic grass stage, whereby a grass-like tuft of needles protects the apical meristem ( [26,27]; Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Life Stage and Neighborhood-Dependent Survival of Longleaf Pine after Prescribed Fire

Magee

Pandit

Flory

et al. 2022

Forests

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Determining mechanisms of plant establishment in ecological communities can be particularly difficult in disturbance-dominated ecosystems. Longleaf pine (Pinus palustris Mill.) and its associated plant community exemplify systems that evolved with disturbances, where frequent, widespread fires alter the population dynamics of longleaf pine within distinct life stages. We identified the primary biotic and environmental conditions that influence the survival of longleaf pine in this disturbance-dominated ecosystem. We combined data from recruitment surveys, tree censuses, dense lidar point clouds, and a forest-wide prescribed fire to examine the response of longleaf pine individuals to fire and biotic neighborhoods. We found that fire temperatures increased with increasing longleaf pine neighborhood basal area and decreased with higher oak densities. There was considerable variation in longleaf pine survival across life stages, with lowest survival probabilities occurring during the bolt stage and not in the earlier, more fire-resistant grass stage. Survival of grass-stage, bolt-stage, and sapling longleaf pines was negatively associated with basal area of neighboring longleaf pine and positively related to neighboring heterospecific tree density, primarily oaks (Quercus spp.). Our findings highlight the vulnerability of longleaf pine across life stages, which suggests optimal fire management strategies for controlling longleaf pine density, and—more broadly—emphasize the importance of fire in mediating species interactions.

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Ground Layer Microhabitats Influence Recruitment of Longleaf Pine in an Old-growth Pine Savanna

Cited by 4 publications

References 73 publications

Landscape heterogeneity increases survival of Pinus caribaea var. hondurensis juveniles in a frequently burned, humid savanna

Landscape heterogeneity increases survival of Pinus caribaea var. hondurensis juveniles in a frequently burned, humid savanna

Bees and Fire: How does Fire in Longleaf Pine Savannas Affect Bee Communities?

Life Stage and Neighborhood-Dependent Survival of Longleaf Pine after Prescribed Fire

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