Results 111 to 120 of about 16,074 (242)

Branch whorls of juvenile Araucaria araucana (Molina) Koch: are they formed annually? Los verticilos de juveniles de Araucaria araucana (Molina) Koch: ¿son formados anualmente?

Revista Chilena de Historia Natural, 2000
The growth of Araucaria araucana, like that of many other conifers, is characterised by the production of a monopodial stem with branch whorls. However, the periodicity of whorl formation in this species has not been subjected to systematic study.
CHRISTOPHER H. LUSK, CARLOS LE-QUESNE
doaj  

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

Chloroplast genome‐based genetic resources via genome skimming for the subalpine forests of Japan and adjacent regions

Ecology and Evolution
The Japanese subalpine zone is dominated by an ecologically important forest biome, subalpine coniferous forest, constituting a distinct assemblage of cold‐tolerant angiosperm and conifer species.
James R. P. Worth, Satoshi Kikuchi, Seiichi Kanetani, Daiki Takahashi, Mineaki Aizawa, Elena A. Marchuk, Hyeok Jae Choi, Maria A. Polezhaeva, Viktor V. Sheiko, Saneyoshi Ueno   +9 more
doaj   +1 more source

Elimination trial on some of important conifers in Asalem forests [PDF]

تحقیقات جنگل و صنوبر ایران, 2009
In order to investigate on the adaptation and performance of exotic trees in northern of Iran, a field experiment was carried out during 1991 to 2006 in Asalem forests. Nine species of different conifers, consisting of Pinus nigra var.
Arsalan Hematti, Baba Khanjani Shiraz, Babak Ghaderi Vangah   +2 more
doaj  

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

Citizen Science for Individual Identification of Pine Martens Martes martes From Camera Trap Footage

Remote Sensing in Ecology and Conservation, EarlyView.
Camera traps generate large volumes of wildlife footage, but identifying animals to the individual level remains challenging and time‐consuming. Using European pine martens in the Forest of Dean as a case study, we assessed whether citizen scientists could identify individuals from camera trap photos and videos.
Sian E. Green, Philip A. Stephens, Josie Bridges, Catherine M. McNicol, Russell A. Hill   +4 more
wiley   +1 more source

Synthetic Imagery Improves Ecological Classification When Real Data Are Scarce, Not Direct Substitutes

Remote Sensing in Ecology and Conservation, EarlyView.
Image generation models can create synthetic ecological datasets and potentially alleviate limitations from sparse real data. Using 20 tree genera across community‐science and street‐view imagery, we tested whether synthetic images could replace or supplement real data for image classification.
Thomas A. Lake, Brennen T. Farrell, Ross K. Meentemeyer, Chris M. Jones   +3 more
wiley   +1 more source

Genetic Basis of Reproductive Isolation in Torrey Pine (Pinus torreyana Parry): Insights From Hybridization and Adaptation

Evolutionary Applications
Tree species are often locally adapted to their environments, but the extent to which environmental adaptation contributes to incipient speciation is unclear.
Lionel N. Di Santo, Alayna Mead, Jessica W. Wright, Jill A. Hamilton   +3 more
doaj   +1 more source

Genetic variation in Araucaria cunninghamii provenances in Luiz Antonio-SP, Brazil

Crop Breeding and Applied Biotechnology, 2005
The genetic variation in traits of growth and shape and their distribution among and within ten Australian provenances of Araucaria cunninghamii was studied under the environmental conditions of Luiz Antonio, state of São Paulo (SP).
Alexandre Magno Sebbenn, Antonio Carlos Scatena Zanatto, Miguel Luiz Menezes Freitais, Aida Sanae Sato, Lígia de Castro Ettori   +4 more
doaj  

Central Asia Cold Case: Siberian Pine Fingers New Suspects in Growth Decline CA 1700 CE

Plants
Tree-ring width chronologies of Pinus sibirica Du Tour from near the upper treeline in the Western Sayan, Southern Siberia are found to have an exceptional (below mean–3SD) multi-year drop near 1700 CE, highlighted by the seven narrowest-ring years in a ...
David M. Meko, Dina F. Zhirnova, Liliana V. Belokopytova, Yulia A. Kholdaenko, Elena A. Babushkina, Nariman B. Mapitov, Eugene A. Vaganov   +6 more
doaj   +1 more source