Exploring Biophysical Linkages between Coastal Forestry Management Practices and Aquatic Bivalve Contaminant Exposure

Scully-Engelmeyer, Kaegan M.; Granek, Elise F.; Lanier, Andy; Rumrill, Steven S.; Moran, Patrick; Nilsen, Elena B.; Hladik, Michelle L.; Pillsbury, Lori

doi:10.3390/toxics9030046

Cited by 7 publications

(3 citation statements)

References 62 publications

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“…Scully-Engelmeyer et al (2021) have measured 12 pesticides including herbicide, fungicide, and insecticide, in bivalve samples. 36 They reported that they could detect indaziflam even in the forest. 36 In another study, Sun et al (2018) reported that indaziflam caused root mass changes in hybrid Bermuda grass and decreased accumulation of macro/ micro-nutrients in roots.…”

Section: Discussionmentioning

confidence: 99%

“…36 They reported that they could detect indaziflam even in the forest. 36 In another study, Sun et al (2018) reported that indaziflam caused root mass changes in hybrid Bermuda grass and decreased accumulation of macro/ micro-nutrients in roots. 37 As a result, the present study focused on filling a gap related to cytotoxicity and genotoxicity of indaziflam on HepG2 cells.…”

Section: Discussionmentioning

confidence: 99%

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The possible cytotoxicity and genotoxicity assessment of indaziflam on HepG2 cells

Könen-Adıgüzel

2023

Hum Exp Toxicol

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The use of pesticides in farmland has increased considerably to protect crops against pests, weeds, and diseases. However, pesticides and/or their residues in ecosystems may affect non-target organisms. Indaziflam is a widely used herbicide in agricultural areas in the southern region of Turkey. Therefore, this study aimed to investigate the possible genotoxic and cytotoxic effects of indaziflam on HepG2 cells using comet assay, micronucleus assay, and xCELLigence. The HepG2 cells were treated with various concentrations of indaziflam for different duration of time based on xCELLigence results. Accordingly, the cells were incubated with indaziflam at final concentrations of 1, 5, 10, 20, 40, and 80 μg/mL for 96 h for cytotoxicity assay. To assess genotoxicity, cells were treated with indaziflam at final concentrations of 10, 40, and 100 μg/mL for 4 and 24 h. Ethanol was used as a solvent for indaziflam. Hydrogen peroxide (40 μM) was used as a positive control. Studies have revealed that indaziflam did not show a statistically cytotoxic effect at the tested doses. Nevertheless, genotoxicity studies showed that indaziflam induced both DNA strand breaks and micronucleus numbers depending on the exposure time and dose.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The possible cytotoxicity and genotoxicity assessment of indaziflam on HepG2 cells

Könen-Adıgüzel

2023

Hum Exp Toxicol

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“…Between 2017 and 2018, individual biological samples of M. falcata were collected as part of an assessment of bivalve pesticide contaminants (Scully-Engelmeyer et al, 2021). These samples originated from seven Coast Range watersheds (eight total collection sites).…”

Section: Mussel Condition Samplingmentioning

confidence: 99%

Freshwater mussel populations in Pacific Coast Watersheds (Oregon, USA): occurrence, condition, habitat, and fish species overlap

Scully-Engelmeyer,

Blevins,

Granek

et al. 2023

Hydrobiologia

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In the western US, freshwater mussels (Order Unionida) contribute valuable ecosystem functions to riverine systems, yet have declined across their range following widespread degradation of freshwater habitat and parallel declines in salmonids, host fish for larval western pearlshell mussels (Margaritifera falcata). The status of M. falcata populations is of particular conservation interest in isolated coastal watersheds given unique freshwater mussel-host fish relationships. To understand M. falcata population ecology in Oregon’s coastal watersheds, we analyzed stream survey data on presence/absence of mussels collected over a recent eleven-year period, explored co-varying habitat characteristics, and summarized mussel distribution and host fish co-occurrence. We also collected M. falcata and compared condition indices among eight locations. Naïve occupancy in surveyed areas was 12.3%, about half of predicted occupancy (ψ = 0.24, CI 0.19–0.31) based on modeling repeated visits over a ten year assumed closed period. Mussel occupancy was correlated with reach-scale habitat variables, and the probability of mussel observations was positively correlated with presence of coho (Oncorhynchus kisutch) salmon. Condition varied significantly among locations. Spatial relationships between existing mussel distribution, host species, and habitat variables answer questions about coastal freshwater mussel populations, as well as serve to identify priorities for further research and population assessment.

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Global Insights on Insecticide Use in Forest Systems: Current Use, Impacts and Perspectives in a Changing World

Leroy

2024

Curr. For. Rep.

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Purpose of Review The perception of forests has evolved from mere timber sources to multifunctional ecosystems that support biodiversity and provide essential ecosystem services. Nevertheless, insecticides remain crucial in many forestry systems facing intensifying insect outbreaks and invasions. This review examines recent literature on insecticide use in forestry worldwide, aiming to identify major use patterns, environmental impacts, and emerging alternatives to foster sustainable pest management. Recent Findings The need for alternatives to chemical control is globally recognized, driven by environmental impacts and increasingly strict regulatory frameworks. Recent studies using next-generation sequencing suggest that insecticides can have complex, indirect effects on animal community structures, underscoring the importance of in situ community-wide assessments. Bioinsecticides have been extensively tested, but their effectiveness is strongly dependent on environmental conditions. Advances in functional genomics, nanomaterials, and application technologies suggest that direct control tactics compatible with conservation goals may become achievable. Summary Four major use patterns were identified: (1) aerial applications against defoliators; (2) tree-level prophylactic applications against endophagous insects; (3) toxic baits against eusocial pests; and (4) seedling protection in nurseries and reforestation sites. Although insecticide use is influenced by management intensity, integrated pest management (IPM) is widely implemented across forestry systems. Insecticides are generally used sparingly but still play a critical role as last-resort suppression tactics against severe outbreaks. This complicates the search for alternatives, as reduced-risk compounds often lack the efficacy needed for this niche. The scope of ecological impact assessments vary, focusing on natural enemies in intensive systems, and increasingly including wider communities in multifunctional forests. There is a pressing need for protocols that assess both economic and ecological trade-offs at the community level to integrate future technologies, such as molecular control and nanoinsecticides, into IPM strategies.

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Exploring Biophysical Linkages between Coastal Forestry Management Practices and Aquatic Bivalve Contaminant Exposure

Cited by 7 publications

References 62 publications

The possible cytotoxicity and genotoxicity assessment of indaziflam on HepG2 cells

The possible cytotoxicity and genotoxicity assessment of indaziflam on HepG2 cells

Freshwater mussel populations in Pacific Coast Watersheds (Oregon, USA): occurrence, condition, habitat, and fish species overlap

Global Insights on Insecticide Use in Forest Systems: Current Use, Impacts and Perspectives in a Changing World

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