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The demise of enemy release associated with the invasion of specialist folivores on an invasive tree
There is a long history of humans either intentionally or accidentally moving plant species to areas outside of their native ranges. In novel environments, populations of many of these plant species exhibit explosive population growth and spread, in part due to the absence of coevolved enemies such as herbivorous insects. However, over time such enemies can ‘catch up’ with their host and re-establish host–herbivore relationships. Though this phenomenon has been documented in several systems, little evidence exists on how this re-assembly of enemies results in increased levels of herbivory. In ...
AuthorsVladimír Medzihorský, Richard Mally, Jiří Trombik, Marek Turčáni, Michaela Medzihorská, Etsuko Shoda‐Kagaya, Grant D. Martin, Stephanie Sopow, Kaori Kochi, Andrew LiebholdKeywordsSourceEcographyYear2024 -
Currently, no multiple century fire scar records have been constructed in the Lower Peninsula of Michigan, USA, a region where historical vegetation ranged from prairies and oak-dominated woodlands in the south to conifernorthern hardwood forests and swamps to the north. The western portion of the Huron-Manistee National Forests is located within this strong vegetation transition (i.e., "Tension Zone") and, based on this study, has well-preserved remnant red pine trees dating back to at least the late 1400s with fire scars dating back to 1523. From fire scar records constructed at four study s...
AuthorsMichael C. Stambaugh, Joseph M. Marschall, Erin R. Abadir, Richard P. Guyette, Daniel C. DeySourceFire EcologyYear2024 -
Neighborhoods are one of the key determinants of health disparities among young people in the United States. While neighborhood deprivation can exacerbate health disparities, amenities such as quality parks and greenspace can support adolescent health. Existing conceptual frameworks of greeninghealth largely focus on greenspace exposures, rather than greening interventions. In this paper, we develop and propose a Greening Theory of Change that explains how greening initiatives might affect adolescent health in deprived neighborhoods. The theory situates greening activities and possible mechani...
AuthorsMichelle Kondo, Dexter Locke, Meghan Hazer, Tamar Mendelson, Rebecca L. Fix, Ashley Joshi, Megan Latshaw, Dustin Fry, Kristin MmariKeywordsSourceAmerican Journal of Community PsychologyYear2024 -
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AuthorsWendell Haag, Angela K. Burrow, Traci P. DuBose, Steven J. PriceSourceFreshwater ScienceYear2024 -
A forest investment’s returns are generated from three sources: the land’s gain in value, the timber’s growth in size and product class improvement, and the timber price change. Land appreciation is rapidly leading to an inverse relationship with tenure. This phenomenon has turned what was once an academic exercise of land appraisal into a practical one that incorporates the asset’s terminal value. We found that failing to account for the terminal value can lead to sizable differences in forest value, although those differences diminish with increasing planning time horizons. The findings can ...
AuthorsBruno Kanieski da Silva, Fatemeh Rezaei, Shaun Tanger, Jesse Henderson, Eric McConnell, Changyou SunKeywordsSourceForest Policy and EconomicsYear2024 -
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AuthorsMaricar Aguilos, Ge Sun, Ning Liu, Yulong Zhang, Gregory Starr, Andrew Christopher Oishi, Thomas O'Halloran, Jeremy Forsythe, Jingfeng Wang, Modi Zhu, Devendra Amatya, Benju Baniya, Steve McNulty, Asko Noormets, John KingSourceAgricultural and Forest MeteorologyYear2024 -
Chestnut blight (caused by Cryphonectria parasitica), together with Phytophthora root rot (caused by Phytophthora cinnamomi), has nearly extirpated American chestnut (Castanea dentata) from its native range. In contrast to the susceptibility of American chestnut, many Chinese chestnut (C. mollissima) genotypes are resistant to blight. In this research, we performed a series of genome-wide association studies for blight resistance originating from three unrelated Chinese chestnut trees (Mahogany, Nanking and M16) and a Quantitative Trait Locus (QTL) study on a Mahogany-derived inter-species F2 ...
AuthorsShenghua Fan, Laura L. Georgi, Frederick V. Hebard, Tetyana Zhebentyayeva, Jiali Yu, Paul H. Sisco, Sara F. Fitzsimmons, Margaret E. Staton, Albert G. Abbott, C. Dana NelsonKeywordsSourceFrontiers in Plant ScienceYear2024 -
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AuthorsKailong Zhang, Thomas Elder, Zhongyang Cheng, Ke Zhan, Yucheng Peng, Mi LiKeywordsSourceJournal of Environmental Chemical EngineeringYear2024 -
Background: For at least four decades, practitioners have recognized advantages of aerial versus ground ignition for maximizing the effectiveness of prescribed fires. For example, larger areas can be ignited in less time, or ignition energy may be variously targeted over an area in accordance with the uneven distribution of fuels. The maturation of wireless communication, geopositioning systems, and unmanned aerial systems (UAS) has enhanced those advantages, and UAS approaches also provide further advantages relative to helicopter ignitions, such as reduced risk to human safety, lower operati...
AuthorsJohn Craycroft, Callie SchweitzerKeywordsSourceFire EcologyYear2024 -
Recognizing the involvement of various stakeholders in managing pests, diseases, and forest disturbances is critical for managing forest health. Although there has been substantial focus on the biological and ecological aspects of forest health in the peer-reviewed literature, there is a significant gap in understanding the human dimensions of forest health, especially from the perspective of foresters and loggers. These two groups—foresters, who write silvicultural prescriptions, and loggers, who implement them—are vital but understudied participants.
AuthorsNorthern Research Station. USDA Forest ServiceSourceRooted in Research Issue 29, April 2024. Madison, WI: U.S. Department of Agriculture, Forest Service, Northern Research Station. 2 p.Year2024