Results 31 to 40 of about 1,409 (170)
Forests, 2022 Fraser fir, Abies fraseri (Pursh) Poir., is a tree endemic to the Southern Appalachians and is found only in a few isolated populations at high elevations. Fraser firs are also cultivated on a commercial scale as Christmas trees. The species is imperiled by an introduced insect, the balsam woolly adelgid, Adelges piceae Ratzeburg (BWA).
Austin Thomas +3 more
openaire +1 more source
Viabilidad y germinación de las semillas de "Abies pinsapo Boiss" [PDF]
, 1992 Se estudió la viabilidad y germinación de las semillas de Abies pinsapo Boiss. sobre una muestra de 2000 piñones procedentes de dos árboles de la Serranía de Grazalema.
Arista, Monserrat +2 more
core +5 more sources
International Biological Flora: Tsuga canadensis*
Journal of Ecology, Volume 113, Issue 10, Page 3037-3080, October 2025.Eastern Hemlock is a long‐lived forest tree of eastern North America known for its deep shade and home given to many organisms. Despite surviving large‐scale clearing for agriculture when Europeans arrived, it returned to dominate when the land was abandoned in the mid 1800s.
Peter A. Thomas, David A. Orwig
wiley +1 more source
Effect of Leaf Water Potential on Internal Humidity and CO2 Dissolution : Reverse Transpiration and Improved Water Use Efficiency under Negative Pressure [PDF]
, 2017 The pull of water from the soil to the leaves causes water in the transpiration stream to be under negative pressure decreasing the water potential below zero.
Grönholm, Tiia +6 more
core +1 more source
Recovery trends and predictions of Fraser fir (Abies fraseri) dynamics in the Southern Appalachian Mountains [PDF]
Canadian Journal of Forest Research, 2017 The endemic Fraser fir (Abies fraseri (Pursh) Poir.) is found in only seven montane regions in the southern Appalachians above ca. 1500 m elevation. Due to widespread insect-caused mortality from the invasive balsam woolly adelgid (Adelges piceae Ratzeburg), as well as possible impacts from climate change and atmospheric pollution, the future of ...
Kaylor, S Douglas +2 more
openaire +1 more source
Forest Pathology, Volume 55, Issue 5, October 2025.ABSTRACT Tree nurseries play a key role in the Canadian economy and reforestation efforts, producing over 600 million seedlings annually. Despite rigorous management practices, nurseries are not exempt from pathogen outbreaks, which can be devastating on many levels.
Guillaume Charron +3 more
wiley +1 more source
Determinants of the Southern Range Limit of an Infamous North American Forest Defoliator
Journal of Biogeography, Volume 52, Issue 7, July 2025.ABSTRACT Aim Predicting climate driven species range shifts requires knowledge of mechanisms limiting species fitness under various climatic conditions. The traditional approach of modelling ranges of herbivorous insects by fitting environmental niche models to occurrence records is generally incapable of differentiating direct effects of climate on ...
Andrew M. Liebhold +2 more
wiley +1 more source
Certain floristic affinities of the trees and shrubs of the Great Smoky mountains and vicinity [PDF]
, 1930 It is widely admitted that the forests of eastern United States reach their culmination in the southern Appalachians, particularly in the Unaka range of North Carolina and Tennessee.
Cain, Stanley A.
core +1 more source
Commodity risk assessment of Berberis thunbergii plants from the UK
EFSA Journal, Volume 23, Issue 6, June 2025.Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘high risk plants, plant products and other objects’. Taking into account the available scientific information, including the technical information provided by ...
EFSA Panel on Plant Health (PLH) +36 more
wiley +1 more source
Arthopyrenia betulicola (Arthopyreniaceae, Dothidiomycetes), an Unusual New Lichenized Fungus From High Elevations of the Southern Appalachian Mountains [PDF]
, 2013 The crustose pyrenolichen Arthopyrenia betulicola is described as new to science based on collections from high elevations of Great Smoky Mountains National Park in eastern North America.
Harris, Richard C +2 more
core +3 more sources