Author: Wisconsin. Emerald Ash Borer ProgramPublisher:
ISBN:
Category : Ash (Plants)
Languages : en
Pages : 13
Book Description
Reducing the Impact of Emerald Ash Borer
Author: Wisconsin. Emerald Ash Borer ProgramPublisher:
ISBN:
Category : Ash (Plants)
Languages : en
Pages : 13
Book Description
Integrated Program Strategy for Reducing the Adverse Impacts of Emerald Ash Borer Throughout the Northeastern Area
Author: Understanding and Managing Emerald Ash Borer Impacts on Ash Forests
Author: Randall K. KolkaPublisher: MDPI
ISBN: 3038971642
Category : Electronic books
Languages : en
Pages : 297
Book Description
This book is a printed edition of the Special Issue "Understanding and Managing Emerald Ash Borer Impacts on Ash Forests" that was published in Forests
Understanding and Managing Emerald Ash Borer Impacts on Ash Forests
Author: Randall KolkaPublisher:
ISBN: 9783038971658
Category :
Languages : en
Pages :
Book Description
The emerald ash borer (EAB) is rapidly spreading throughout Eastern North America and devastating ecosystems where ash is a component tree. This rapid and sustained loss of ash trees has already resulted in ecological impacts on both terrestrial and aquatic ecosystems and is projected to be even more severe as EAB invades ash dominated wetlands of the western Great Lakes region. We propose a Special Issue that will address current research documenting ecological impacts of EAB in forest ecosystems, as well as management approaches to mitigate those impacts. Prospective authors are invited to contribute original researches to this Special Issue of Forests. Topics may include, but are not limited to: Managements of ash forests and potential replacements, nutrient and vegetation dynamics, greenhouse gas emissions and carbon sequestration and cycling, hydrologic impacts, and pre or post-infestation silvicultural approaches or management strategies.
Short- and Long-Term Impacts of Forest Management in Response to the Invasive Emerald Ash Borer in New England Forests
Author: Hanusia HigginsPublisher:
ISBN:
Category : Emerald ash borer
Languages : en
Pages : 0
Book Description
As non-native forest pests disperse across the United States, the emerald ash borer, Agrilus planipennis (EAB), has emerged as one of the most costly and destructive invaders. In response to EAB, forest management practices, including pre-salvage logging, "phloem reduction" (large ash removal), and strategies to improve future ash regeneration, have been implemented to meet economic, ecological, cultural, and safety objectives. Although many studies have quantified the impacts of EAB on mortality of ash trees (Fraxinus spp.), less is known about the short- and long-term ecological impacts of forest management in response to this pest. In summer 2020, we measured forest structure and composition at sites across New England that included white ash harvests motivated by the threat of EAB impacts. Management responses varied from selective ash removals to capture potential economic losses to group selection harvests designed to recruit new ash cohorts. Informed by our findings, we modeled three approaches to ash management under three potential future climate regimes, along with EAB and natural wind disturbance for a 100-year period in northern Bennington County, Vermont. This dual approach allowed us to examine both the immediate aftermath of forest management responses to EAB, and the future outcomes of these management practices on ash trees and their natural communities, in the context of other important drivers of forest dynamics such as climate change. In our observational study, we found a lower proportion of white ash basal area in harvested study sites compared to unharvested control sites. However, white ash regeneration at the seedling and sapling stages was higher in harvested than in unharvested plots. In addition, our modeling of ash management practices projected more white and black ash biomass present in 2120 forests when harvests and chemical treatments prioritizing ash retention and regeneration were implemented compared to typical current practices, and less ash biomass in 2120 following more aggressive salvage and pre-salvage harvests removing white ash. Climate also played a significant role in next-century forest composition, as more drastic climate projections compared to current conditions favored warmer-adapted species in the region. Our findings indicate that forest management practices that align with ash species' silvics, such as the greater light availability needed to successfully recruit new white ash cohorts, can bolster ash regeneration and perpetual presence in New England forests. Although EAB remains a significant threat, our work confirms the importance of implementing a variety of management approaches, supported by recent findings that ash survival and resistance to EAB is more prevalent, and more variable, than previously thought. This work will help inform future management decisions in response to this invasive pest that ensure long-term ecological and economic options are maintained on site.
Effects of Emerald Ash Borer on Ash Tree Health and Economic Loss Due to Ash Tree Removal on the Indiana University Southeast Campus in New Albany, Indiana
Author: Jade R. BilyeuPublisher:
ISBN:
Category : Ecology
Languages : en
Pages : 83
Book Description
The Emerald Ash Borer (EAB), Agrilus planipennis, an invasive beetle species native to Asia and accidentally introduced to the United States and Canada was first detected in Detroit, Michigan in 2002. Since the initial detection of EAB it has caused ash tree (Fraxinus spp.) mortality ranging between 95-99% in regions of the Midwestern U.S. In an effort to combat ash tree mortality numerous research studies were launched to determine dispersal and behavioral patterns of EAB, as well as address ash tree survival and treatment options. Ash trees were analyzed from both an urban and non-cultivated area on the Indiana University Southeast campus and data were collected in 2015. Measuring canopy density using a densiometer is an accurate and consistent methodology that can be used instead of visual analysis of tree health. The results of data analyses suggest that some trees could have a higher survivorship potential based on growth parameter data in combination with spatial analysis. Using spatial analysis can detect trees with unique growth characteristics when compared to neighboring trees of the same genus. Finding healthy concentrations of ash trees as well as outlier ash trees surrounded by unhealthy trees are two methods that could be used to detect ash trees that are most likely to survive EAB infestation. Both healthy outliers and groups of healthy trees were found. Furthermore, an analysis of total economic value loss was conducted to evaluate the economic effects EAB could have if ash trees in poor health are removed. The economic value lost from removal of parking lot shade ash trees over a three-year period from 2012-2015 was over $713,000. The high value of economic loss suggests that treating ash trees is more economically efficient than removing ash trees unless the trees become a safety hazard. It is recommended that healthy outlier ash trees as well as healthy groups of ash trees be treated and seeds be collected from these uniquely healthy ash trees. It is also recommended that ash trees located in urban (cultivated) areas also continue to be treated to assess survivorship and potential tolerance to EAB and to off-set replacement and removal costs and allow larger canopy trees to remain, due to their higher economic value, as long as possible in affected areas.
The Ecological Impacts of the Emerald Ash Borer (Agrilus Planipennis)
Author: Constance Elizabeth HausmanPublisher:
ISBN:
Category : Ash (Plants)
Languages : en
Pages : 162
Book Description
The introduction of exotic species is the inevitable consequence of an expanding global society that relies heavily on international trade of goods and services. These introduced species have negative effects on biodiversity and disrupt native communities. In fact, the spread of non-native species is the second greatest threat to the loss of biodiversity next to habitat destruction. The emerald ash borer (EAB), Agrilus planipennis Fairmaire (Buprestidae), is a recent example of an exotic forest pest species. EAB completes its life cycle on ash trees (Fraxinus spp.) including larvae feeding on cambium tissue which interferes with water and nutrient translocation. Once ash trees become infested with EAB, mortality is>99%. This dissertation was initiated after EAB was discovered and attempts to understand how EAB affects long-term forest community dynamics in order to provide practical applied conservation strategies. These research projects are designed to identify the ecological impacts of EAB and to determine long-term community changes to native deciduous forests. The research objectives are: (1) to identify consequences of EAB eradication efforts, (2) to determine altered community composition under different disturbance intensities (tree removal management recommendations) and (3) to design effective ex situ conservation protocols for future ash tree preservation. EAB causes a disturbance to native forest by creating large light gaps through ash tree dieback; yet, EAB eradication efforts magnified the scale of disturbance through time and space which facilitated the establishment of invasive plant species. The tracked vehicles used during eradication also caused significant soil compaction. Management efforts applied to EAB-infested forests should prioritize appropriate tree removal techniques to minimize the disturbance to the surrounding community. Ash stands in close proximity to roads or edges, or near established invasive populations may benefit from proactive removal of invasive species. This research contributes to ash conservation efforts by providing a guideline for ex situ collection methods. By understanding diversity and spatial genetic structure of green ash (Fraxinus pennsylvanica), a seed collection protocol has been constructed that optimizes the likelihood of capturing all alleles in a population while minimizing collection efforts. This cumulative research provides effective forest management recommendations and prioritizes ash conservation.
Invasive Species in Forests and Rangelands of the United States
Author: Therese M. PolandPublisher: Springer Nature
ISBN: 3030453677
Category : Science
Languages : en
Pages : 455
Book Description
This open access book describes the serious threat of invasive species to native ecosystems. Invasive species have caused and will continue to cause enormous ecological and economic damage with ever increasing world trade. This multi-disciplinary book, written by over 100 national experts, presents the latest research on a wide range of natural science and social science fields that explore the ecology, impacts, and practical tools for management of invasive species. It covers species of all taxonomic groups from insects and pathogens, to plants, vertebrates, and aquatic organisms that impact a diversity of habitats in forests, rangelands and grasslands of the United States. It is well-illustrated, provides summaries of the most important invasive species and issues impacting all regions of the country, and includes a comprehensive primary reference list for each topic. This scientific synthesis provides the cultural, economic, scientific and social context for addressing environmental challenges posed by invasive species and will be a valuable resource for scholars, policy makers, natural resource managers and practitioners.
Emerald Ash Borer
Author: Susan H. GrayPublisher: Cherry Lake
ISBN: 1602793425
Category : Juvenile Nonfiction
Languages : en
Pages : 36
Book Description
Emerald Ash Borers have shiny green bodies and an appetite for ash trees. This native Asian insect hitchhiked to North America and has killed millions of ash trees. Learn more about the emerald ash borer and what is being done to try to stop its spread.
Direct and Indirect Impacts of Emerald Ash Borer on Forest Bird Communities
Author: Lawrence Charles LongPublisher:
ISBN:
Category :
Languages : en
Pages : 154
Book Description
Abstract: Emerald Ash Borer (EAB) (Agrilus planipennis Fairmare) is an exotic invader in North American forests. The buprestid wood borer has killed millions of ash trees since its discovery in southeastern Michigan in 2002. Because North American ash trees lack an evolutionary history with EAB, it has the potential to functionally extirpate the genus Fraxinus from the North American continent. Widespread, simultaneous ash mortality is likely to initiate a cascade of direct and indirect ecological effects. Forest infestation by EAB and subsequent loss of ash trees may lead to altered habitat and food availability for native insectivores such as birds. The objectives of this research were to: (1) determine utilization of EAB as a food resource by non-migratory bark-gleaning birds, (2) quantify forest regeneration in response to EAB-induced ash tree mortality and (3) determine the impact of EAB-induced regeneration on forest bird communities.