Deer browse susceptibility limits chestnut restoration success in northern hardwood forests
نویسندگان
چکیده
Efforts to develop American chestnuts [Castanea dentata, (Marsh.) Borkh], with improved resistance the chestnut blight fungus, Cryphonectria parasitica (Murr.) Barr, and Phytophthora root rot, caused by Phythophthora cinnamomi Rands, are ongoing. Establishing founder populations of will require understanding ecological silvicultural requirements species. In areas where white tailed deer (Odocoileus virginianus Zimmerman) hinder tree regeneration success, how browsing affect establishment planted is critical. We evaluated impact on survival, growth competitive status hybrid in 15 northern hardwood sites Pennsylvania. found that after six years, fences were 65 percent taller 35 larger basal diameter than unfenced areas. Browsing shifted dynamics faced favoring slower growing, browse tolerant species reducing heights competing woody stems. Nevertheless, plots remained stagnant over time due repeated browsing, while it increased fenced time. Our results suggest fencing or other means herbivory be necessary protect moderate high densities.
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ژورنال
عنوان ژورنال: Forest Ecology and Management
سال: 2022
ISSN: ['0378-1127', '1872-7042']
DOI: https://doi.org/10.1016/j.foreco.2022.120481