Results 131 to 140 of about 28,346 (311)

Recent progress in conifer somatic embryogenesis research [PDF]

, 1982
"July, 1982."Media development for cell suspensions of conifers -- Some redox considerations in conifer tissue culture."This publication comprises two papers that were presented at the Fifth International Congress for Plant Tissue and Cell Culture held ...
Litvay, John D., Johnson, Morris A., Verma, Devi C., Carlson, John A., Einspahr, Dean W.   +4 more
core  

Effects of Engineered Dam Releases on Benthic Assemblages During Drought and Comparison With Unregulated Reaches

River Research and Applications, EarlyView.
ABSTRACT River regulation following damming is often associated with deleterious downstream effects, in large part due to reduced total discharge and disruption of seasonal flooding. These effects would be expected to be exacerbated by drought, particularly extended drought.
Jeffrey G. Holmquist, Jutta Schmidt‐Gengenbach   +1 more
wiley   +1 more source

Environmental and Physiological Drivers of Aspen to Conifer Succession [PDF]

, 2009
An important knowledge gap in aspen ecology is a poor understanding of factors that define aspen to conifer succession dynamics. Environmental conditions in the understory change dramatically as conifers establish in aspen stands.
St. Clair, S., Calder, J.
core  

Hyperspectral species maps and LiDAR‐based structured population models show future forest fire frequency may compromise forest resilience

Remote Sensing in Ecology and Conservation, EarlyView.
Monitoring forest recovery from disturbances at scale requires tracking tree dynamics, yet traditional ground‐based approaches are resource‐intensive. We present a pipeline to parameterize integral projection models (IPMs) using LiDAR data and hyperspectral‐based species maps to assess post‐fire recovery across large, forested areas at the Caribou ...
Jessica McLean, Tommaso Jucker, Alice Rosen, Sean M. McMahon, Roberto Salguero‐Gómez   +4 more
wiley   +1 more source

Streamflow Reconstruction Using Multi-Taxa Tree-Ring Records from Kullu Valley, Himachal Pradesh, Western Himalaya

Quaternary
To study the long-term hydroclimate variability in the Satluj Basin, streamflow data was reconstructed using tree-ring width datasets from multiple taxa available from the Kullu Valley, western (Indian) Himalaya. Five ring-width tree-ring chronologies of
Asmaul Husna, Santosh K. Shah, Nivedita Mehrotra, Lamginsang Thomte, Deeksha, Tanveer W. Rahman, Uttam Pandey, Nazimul Islam, Narayan P. Gaire, Dharmaveer Singh   +9 more
doaj   +1 more source

Classification of tree species and standing dead trees in Boreal forests using UAV‐based RGB, multispectral, and LiDAR point clouds

Remote Sensing in Ecology and Conservation, EarlyView.
We evaluated single‐ and multi‐sensor UAV approaches for classifying tree species and standing dead trees in boreal forests, focusing on key biodiversity indicators such as European aspen. Using spectral and structural features extracted from RGB, multispectral (MSP), and LiDAR point clouds for 1,205 field‐measured trees, we compared classification ...
Anton Kuzmin, Lauri Korhonen, Topi Tanhuanpää, Mikko Kukkonen, Matti Maltamo, Timo Kumpula   +5 more
wiley   +1 more source

Genetic Architecture Underlying Response to the Fungal Pathogen Dothistroma septosporum in Lodgepole Pine, Jack Pine, and Their Hybrids

Evolutionary Applications
In recent decades, Dothistroma needle blight (DNB), a pine tree disease caused by the fungal pathogen Dothistroma septosporum, has severely damaged lodgepole pine (Pinus contorta Dougl. ex.
Mengmeng Lu, Nicolas Feau, Brandon Lind, Dragana Obreht Vidakovic, Pooja Singh, Sally N. Aitken, Richard C. Hamelin, Sam Yeaman   +7 more
doaj   +1 more source

Increased deadwood carbon stocks through planted forestry practices: insights from a Forest Inventory Survey in Japan

Carbon Management
Deadwood, a vital component of forest ecosystems, constitutes a quintessential carbon reservoir that must be disclosed under the United Nations Framework Convention on Climate Change.
Ayumi Kawanishi, Yoshimi Sakai, Shigehiro Ishizuka, Shoji Hashimoto, Masabumi Komatsu, Akihiro Imaya, Naoyuki Yamashita, Keizo Hirai, Hitomi Furusawa, Shuhei Aizawa   +9 more
doaj   +1 more source

Canopy type, forest floor, predation, and competition influence conifer seedling emergence and early survival in two Minnesota conifer-deciduous forests [PDF]

There is concern that the conifer component of mixed conifer-deciduous forests in the Great Lakes region is on the decline, possibly the result of insufficient conifer regeneration.
Cornett, Meredith W., Reich, Peter B., Puettmann, Klaus J.   +2 more
core   +1 more source

Using Airborne Laser Scanning and Sentinel‐2 to Understand Subcanopy Light Regimes and Understory Diversity of Vascular Plants in Temperate Mountain Forests

Remote Sensing in Ecology and Conservation, EarlyView.
This study demonstrates that not just Airborne Laser Scanning, but also Sentinel‐2 can effectively estimate absolute canopy cover and canopy cover heterogeneity ‐ structural metrics that determine the subcanopy light regime, found to be linked to the vascular plant species richness in the understory of temperate mountain forests.
Felix Wieland‐Glasmann, Cornelius Senf, Kristin H. Braziunas, Rupert Seidl, Peter Annighöfer   +4 more
wiley   +1 more source