Abundance of mites, but not of collembolans or nematodes, is reduced by restoration of a Pinus ponderosa forest with thinning, mastication, and prescribed fire

Gibson, Kara Skye; Johnson, Nancy Collins; Laturno, Channing; Parmenter, Robert; Antoninka, Anita

doi:10.1016/j.tfp.2022.100190

Cited by 7 publications

(3 citation statements)

References 29 publications

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“…Logging debris can have significant, if transient, stimulatory effects on nematode communities: In a clear-cut Scots pine (Pinus sylvestris) forest in Sweden, slash temporarily elevated total nematode abundance by up to 360% relative to an unlogged control forest, and up to 220% relative to clear-cut plots without slash [52]. Similarly, at another site within Valles Caldera National Preserve, total nematode abundance was 112% greater within a Pinus ponderosa forest management unit that had been thinned two years prior (with mastication of unmerchantable timber) than within an adjacent untreated management unit [53]. (Nematodes were not identified in either of these studies.…”

Section: Nematode Communitiesmentioning

confidence: 99%

Heavy Logging Machinery Impacts Soil Physical Properties More than Nematode Communities

Gibson

Neher

Johnson

et al. 2023

Forests

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Mechanized logging equipment causes considerable soil disturbance, but little information is available regarding thresholds for impacts on soil nematodes—critical members of soil foodwebs which perform important ecological functions. We examined responses of nematode communities and soil physical characteristics to the increasing number of passes (one, three, or nine) by a tracked feller buncher during thinning of a xeric mixed conifer forest in New Mexico, USA. Within and between the harvester tracks, we measured soil surface penetration resistance and shear strength, quantified bulk density at four depth increments up to a maximum depth of 27 cm, and characterized nematode assemblages in the upper 10 cm. Eight months after treatment, nematode communities were less impacted than soil physical properties by harvester passes. Total nematode abundance was unaffected by any level of feller buncher disturbance, and sensitive K-selected nematode groups were reduced only at nine passes. Conversely, soil compaction occurred with a single pass and extended deep into the soil profile to at least 23–27 cm. The first pass also decreased surface penetration resistance and shear strength, indicating disruption of soil surface structural integrity. Additional passes did not further increase bulk density or decrease surface structural integrity. Our results indicate that low levels of logging machinery traffic may have negligible effects on nematode communities, but nevertheless emphasize the importance of minimizing areas subjected to disturbance because of impacts on soil physical properties.

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Section: Nematode Communitiesmentioning

confidence: 99%

Heavy Logging Machinery Impacts Soil Physical Properties More than Nematode Communities

Gibson

Neher

Johnson

et al. 2023

Forests

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“…In this case, the trap week was used as the environmental information for the "Envfit" analysis. Additionally, "Envfit" has been successfully used to map the correlation of continuous predictors in relation to site dissimilarity in former fire ecology studies [96,103].…”

Section: Data Analysesmentioning

confidence: 99%

Exploring Prescribed Fire Severity Effects on Ground Beetle (Coleoptera: Carabidae) Taxonomic and Functional Community Composition

Mason,

Shirey,

Waite

et al. 2023

Fire

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Prescribed fire is a management tool that is frequently used to foster biodiversity. Simultaneously, insects that provide essential ecosystem services are globally declining. Within the pyroentomology literature, there are mixed reports of positive and negative effects that prescribed fires have on insect communities. This is likely due to not accounting for fire heterogeneity created by fire severity. To better understand prescribed fire severity effects on insect communities, we used multispectral reflectance data collected by Sentinel-2 to methodically quantify prescribed fire severity and compared ground beetle (Coleoptera: Carabidae) taxonomic and functional community composition responses between an unburned site and two burned sites with contrasting fire impacts. We found 23 ground beetle species and used 30 morphological, physiological, phenological, and ecological functional traits for each species. We found that our moderate fire severity site had different taxonomic and functional community compositions from both our unburned and high-severity sites. Surprisingly, we did not find a strong difference in taxonomic or functional ground beetle composition between our unburned and high-severity sites. Our results encourage future pyroentomology studies to account for fire severity, which will help guide conservation managers to make more accurate decisions and predictions about prescribed fire effects on insect biodiversity.

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“…In this case, the trap week was used as the environmental information for the "Env t" analysis. Additionally, "Env t" has been successfully used to map the correlation of continuous predictors in relation to site dissimilarity in former re ecology studies (Vazquez-Veloso et al 2022; Gibson et al 2022). All analyses described above were performed in R v. 4.2.0 (R Core Team 2022) using the packages "FD" (Laliberte and Legendre 2010; Laliberte et al 2014), "vegan" (Oksanen et al 2020) and were visualized using the package "ggordiplots" (Quensen 2018).…”

Section: Data Analysesmentioning

confidence: 99%

Taxonomic and Functional Community Composition of Ground Beetles (Coleoptera: Carabidae) Changes with Prescribed Fire Severity

Mason

Shirey

Waite

et al. 2022

Preprint

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Prescribed fire is a conservation management tool that is frequently used to foster biodiversity by attempting to mimic historic wildfire regimes, reduce invasive species, and maintain habitat integrity. Simultaneously, insects that provide essential ecosystem services such as decomposition, nutrient cycling, and pest control, are globally declining. Within the pyroentomology literature there are mixed reports of positive and negative effects that prescribed fires have on insect communities. This is likely due to generalizing prescribed fires and not accounting for fire heterogeneity created by the fire characteristics such as fire severity. To better understand if prescribed fire severity can affect insect communities, we used multispectral reflectance data collected by Sentinel-2 to methodically quantify prescribed fire severity and compared ground beetle (Coleoptera: Carabidae) taxonomic and functional community composition responses between an unburned site and two sites burned with contrasting fire impacts. We found 23 ground beetle species and used 30 morphological, physiological, phenological, and ecological functional traits for each species. We found that our moderate fire severity site had different taxonomic and functional community compositions from both our unburned and high severity site. Surprisingly, we did not find a strong difference in taxonomic or functional ground beetle composition between our unburned and high severity site. Thus, we provide support that prescribed fire severity does affect ground beetle community composition and encourage future pyroentomology studies to account for fire severity which will help guide conservation managers to make more accurate decisions and predictions about prescribed fire effects on biodiversity in our native landscapes.

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Abundance of mites, but not of collembolans or nematodes, is reduced by restoration of a Pinus ponderosa forest with thinning, mastication, and prescribed fire

Cited by 7 publications

References 29 publications

Heavy Logging Machinery Impacts Soil Physical Properties More than Nematode Communities

Heavy Logging Machinery Impacts Soil Physical Properties More than Nematode Communities

Exploring Prescribed Fire Severity Effects on Ground Beetle (Coleoptera: Carabidae) Taxonomic and Functional Community Composition

Taxonomic and Functional Community Composition of Ground Beetles (Coleoptera: Carabidae) Changes with Prescribed Fire Severity

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