Effects of Silvicultural Use of the Herbicide Glyphosate on Breeding Birds of Regenerating Clearcuts in Nova Scotia, Canada

Mackinnon, Ds; Freedman, Bill

doi:10.2307/2404181

Cited by 33 publications

(15 citation statements)

References 11 publications

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“…In our study, banding only affected approximately 28% of each stand. Vegetation communities generally recover quickly following banded herbaceous control, often after the first year (MacKinnon and Freedman, 1993;Duda, 2003;Keyser et al, 2003;Edwards, 2004). We began sampling the growing season following application of the herbaceous release.…”

Section: Discussionmentioning

confidence: 99%

Plant community response to burning and herbicide site preparation in eastern Louisiana, USA

Miller

Chamberlain

2008

Forest Ecology and Management

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Section: Discussionmentioning

confidence: 99%

Plant community response to burning and herbicide site preparation in eastern Louisiana, USA

Miller

Chamberlain

2008

Forest Ecology and Management

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“…Herbicides primarily impact biodiversity by altering plant communities and successional trajectories (Freedman 1991, Mackinnon and Freedman 1993, Brooks et al 1995. Effects on plant communities generally are short-term (Miller and Witt 1990, O'Connell and Miller 1994, Lautenschlager and Sullivan 2004, but vary considerably regionally due to differences in ecosystem resiliency, chemical(s) applied, and site conditions (e.g., vegetation associations, site productivity, edaphic characteristics) (Morrison and Meslow 1983, Miller and Witt 1990.…”

Section: Ecological Consequences Of Forest Herbicidesmentioning

confidence: 99%

“…Effects on plant communities generally are short-term (Miller and Witt 1990, O'Connell and Miller 1994, Lautenschlager and Sullivan 2004, but vary considerably regionally due to differences in ecosystem resiliency, chemical(s) applied, and site conditions (e.g., vegetation associations, site productivity, edaphic characteristics) (Morrison and Meslow 1983, Miller and Witt 1990. However, long-term changes in successional trajectories are possible, perhaps influencing future wildlife occupancy of herbicide-treated habitats (Sullivan andSullivan 1982, Mackinnon andFreedman 1993).…”

Section: Ecological Consequences Of Forest Herbicidesmentioning

confidence: 99%

Herbicides and forest biodiversity—what do we know and where do we go from here?

Guynn¹,

Guynn

Wigley

et al. 2004

Wildlife Society Bulletin

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Use of herbicides to control competing vegetation in young forests can increase wood volume yields by 50–150%. However, increasing use of herbicides in forest management has caused widespread concerns among the public and biologists about direct toxicity to wildlife and indirect effects through habitat alteration. Abundant research has indicated that forest herbicide treatments target biochemical pathways unique to plants, do not persist in the environment, and have few toxic effects when operationally applied. Herbicides affect forest biodiversity by creating short‐term declines in plant species diversity, altering vegetative structure, and potentially changing plant successional trajectories. For wildlife species, effects vary but generally are short‐term. Despite these findings, public opinion against forest herbicides often has limited or restricted their use, likely due to people's values associated with forests and a lack of technical knowledge. Future research efforts on relationships between forest herbicides and biodiversity should address landscape and site‐specific issues, be based on rigorous experimental design, be relevant to public concerns, include comparisons of herbicide treatments with alternative treatments excluding herbicides, examine use of chemical mixtures, and determine the social, economic, and possible long‐term ecological consequences of treatments.

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“…At the population level, glyphosate did not appear to have significant or long-lasting effects in the first few years after application [112,114,115]. Similar to small mammals, changes in bird community composition, and reductions in abundance, densities and species richness of bird populations often occurred in the first few years after glyphosate application [80,[116][117][118], and in the case of Santillo et al [117] the decline in bird densities was correlated with the decline in habitat complexity. These changes were assessed against untreated control sites to differentiate the effects of glyphosate from other background environmental factors such as the recovery trajectory following tree harvest and showed similar responses to other herbicides commonly used in managed forests [119].…”

Section: Indirect Effectsmentioning

confidence: 99%

The Risks Associated with Glyphosate-Based Herbicide Use in Planted Forests

Rolando¹,

Baillie²,

Thompson³

et al. 2017

Forests

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Abstract:Glyphosate-based herbicides are the dominant products used internationally for control of vegetation in planted forests. Few international, scientific syntheses on glyphosate, specific to its use in planted forests, are publically available. We provide an international overview of the current use of glyphosate-based herbicides in planted forests and the associated risks. Glyphosate is used infrequently in planted forests and at rates not exceeding 4 kg ha −1 . It is used within legal label recommendations and applied by trained applicators. While the highest risk of human exposure to glyphosate is during manual operational application, when applied according to label recommendations the risk of exposure to levels that exceed accepted toxicity standards is low. A review of the literature on the direct and indirect risks of operationally applied glyphosate-based herbicides indicated no significant adverse effects to terrestrial and aquatic fauna. While additional research in some areas is required, such as the use of glyphosate-based products in forests outside of North America, and the potential indirect effects of glyphosate stored in sediments, most of the priority questions have been addressed by scientific investigations. Based on the extensive available scientific evidence we conclude that glyphosate-based herbicides, as typically employed in planted forest management, do not pose a significant risk to humans and the terrestrial and aquatic environments.

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Effects of Silvicultural Use of the Herbicide Glyphosate on Breeding Birds of Regenerating Clearcuts in Nova Scotia, Canada

Cited by 33 publications

References 11 publications

Plant community response to burning and herbicide site preparation in eastern Louisiana, USA

Plant community response to burning and herbicide site preparation in eastern Louisiana, USA

Herbicides and forest biodiversity—what do we know and where do we go from here?

The Risks Associated with Glyphosate-Based Herbicide Use in Planted Forests

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