Results 31 to 40 of about 219 (129)

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

Integrating area-based and individual tree detection approaches for estimating tree volume in plantation inventory using aerial image and airborne laser scanning data

iForest - Biogeosciences and Forestry, 2017
Remote sensing has been increasingly used to assist forest inventory. Airborne Laser Scanning (ALS) systems can accurately estimate tree height in forests, and are being combined with more traditional optical images that provide further details about the
Shinzato ET, Shimabukuro YE, Coops NC, Tompalski P, Gasparoto EAG   +4 more
doaj   +1 more source

Functional Morphology of the Thoracic Limb in the Silky Anteater (Cyclopes didactylus): A Comparative Study With Tamandua tetradactyla

Acta Zoologica, EarlyView.
ABSTRACT The order Xenarthra presents unique morphophysiological adaptations related to its specialized ecological niches. This study investigates the functional morphology and comparative myology of the thoracic limb in Cyclopes didactylus (silky anteater) and Tamandua tetradactyla (southern tamandua) to elucidate how muscle arrangements support ...
Julia Vaz Feio, Marcia Cristina Conceição da Costa, Érika Branco, Ana Rita de Lima   +3 more
wiley   +1 more source

Canopy Segmentation of Overlapping Fruit Trees Based on Unmanned Aerial Vehicle LiDAR

Agriculture
Utilizing LiDAR sensors mounted on unmanned aerial vehicles (UAVs) to acquire three-dimensional data of fruit orchards and extract precise information about individual trees can greatly facilitate unmanned management. To address the issue of low accuracy
Shiji Wang, Jie Ji, Lijun Zhao, Jiacheng Li, Mian Zhang, Shengling Li   +5 more
doaj   +1 more source

Multi‐Spectral Gaussian Splatting with Neural Color Representation

Computer Graphics Forum, EarlyView.
Abstract 3D Gaussian Splatting (3DGS) [KKLD23] has transformed novel‐view synthesis from RGB images, yet remains restricted to the visible spectrum. Many applications, including agricultural monitoring, rely on multi‐spectral imaging, where spectral camera alignment and scalability pose major challenges.
Lukas Meyer, Josef Grün, Maximilian Weiherer, Bernhard Egger, Marc Stamminger, Linus Franke   +5 more
wiley   +1 more source

Children's Spaces and Subjective Well‐Being During the Pandemic: A Qualitative Photo Study in a German Urban Context

Children &Society, EarlyView.
ABSTRACT One of the most widespread crises in recent history, which profoundly reshaped children's everyday lives and well‐being by temporarily and significantly restricting their social contacts and spatial mobility, was the COVID‐19 pandemic. While international studies have examined the subjective well‐being of children during the pandemic, little ...
Iris Würbel, Veronika Magyar‐Haas, Inka Bormann   +2 more
wiley   +1 more source

That sinkin’ feeling: Environmentally induced distress on a disappearing island

Medical Anthropology Quarterly, EarlyView.
Abstract Residents of Tangier Island, Virginia, a subsiding island in the Chesapeake Bay, embody psychosocial dimensions of environmental change. Analysis of ethnographic data shows islanders’ experiences and articulations of anxiety, panic, and despair as “that sinkin’ feeling,” resulting from the stress of living with the long‐term threat of imminent
Jonna Yarrington
wiley   +1 more source

The case for an epiphyte area index

New Phytologist, Volume 252, Issue 3, Page 973-980, November 2026.
Three distinct ecosystems where epiphytes contribute a substantial vegetative area in the canopy.
Collin Wischmeyer, Sybil G. Gotsch, Philipp Porada, John T. Van Stan II   +3 more
wiley   +1 more source

Methodology for assessing the suitability of immature stages of Lepidoptera for nocturnal surveying using ultraviolet flashlights

Ecological Entomology, Volume 51, Issue 5, Page 845-852, October 2026.
Lepidoptera are highly sensitive to changes in their surroundings, making them excellent indicators of ecosystem health; however, surveying adult butterflies of certain species presents challenges. Nocturnal surveying of larvae and pupae using ultraviolet light (UV) is gaining popularity as a simple, inexpensive, and non‐invasive method.
Gareth J. Tilley, Azhanullah Khan, Daniel Treuherz, David Moskowitz, Toni Kasiske, Yann Baillet, Grégory Guicherd, Bastien Louboutin, Evgeny A. Chekhovich, Alan J. A. Stewart   +9 more
wiley   +1 more source

Does the implementation of Automatic Individual Tree Crown Delineation (ITCD) impact the early detection of bark beetle (BB) infestation in Norway spruce forests? [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Early detection of bark beetle (BB) infestations in Norway spruce forests is essential for effective forest management. While UAV imagery offers high-resolution data, selecting appropriate crown pixels to detect subtle spectral changes during early BB ...
S. Bijou, L. Kupková, L. Červená, J. Lysák   +3 more
doaj   +1 more source