Results 91 to 100 of about 4,061 (205)

Multiple ortho‐mosaicking software pipelines produce comparable imagery‐derived wheat phenotypes

The Plant Phenome Journal, Volume 9, Issue 1, December 2026.
Abstract Unmanned aerial systems (UAS) equipped with multispectral and RGB sensors offer valuable data for monitoring crop health and assessing disease severity. However, the wide range of available photogrammetric software complicates software selection for high‐throughput plant phenotyping.
Sanju Shrestha, Phillip D. Alderman, Grishma Ojha, Brett F. Carver   +3 more
wiley   +1 more source

Mechanisms of Surface Meltwater Ponding and Drainage on the Greenland Ice Sheet Revealed Using SkySat Imagery and Deep Learning

AGU Advances, Volume 7, Issue 2, April 2026.
Abstract Surface meltwater impacts Greenland Ice Sheet mass balance indirectly by reducing albedo and promoting hydrofracture. However, fully understanding both processes requires accurate mapping of small‐scale features such as ponds, channels, and moulins that govern meltwater formation and drainage. Here we investigate surface water dynamics at high
J. C. Ryan, R. T. Datta, S. W. Cooley
wiley   +1 more source

Impacts of variable‐rate potassium fertilization on corn and soybean yield and soil‐test variability

Agronomy Journal, Volume 118, Issue 2, March/April 2026.
Abstract Variable‐rate (VR) technology allows for changing nutrient rates within fields. This study compared VR and uniform‐rate (UR) potassium (K) fertilization for corn (Zea mays L.)–soybean [Glycine max (L.) Merr.] rotations. Grid soil‐sampling (0.1–0.3 ha cells), global positioning systems (GPS), and yield monitors were used to establish multiyear ...
Agustin Pagani, David J. Wittry, Antonio P. Mallarino   +2 more
wiley   +1 more source

The Historical and Overlooked Collapse of Medicinal Leeches in Spain

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 3, March 2026.
ABSTRACT Leeches in genus Hirudo have been used in medicine since ancient times, but increased exploitation during the 19th century led to the depletion of several populations in Europe. A compilation of Hirudo records in Spain (H. troctina Johnson, 1816 and H. verbana Carena, 1820) show that the genus was more commonly mentioned and widely distributed
Francisco Blanco‐Garrido, M. Pilar González‐Sanz, Miguel Clavero   +2 more
wiley   +1 more source

Utilization of Remote Sensing Dataset and a Deep Learning Object Detection Model to Map Siam Weed Infestations

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Remote sensing data are valuable for detecting, mapping, and managing invasive weed species. This article introduces an innovative algorithm for mapping Siam weed infestations using a bounding box approach from a deep learning object detection model ...
Zulfadli Mawardi, Deepak Gautam, Timothy G. Whiteside   +2 more
doaj   +1 more source

Estimating the botanical composition of bahiagrass–rhizoma peanut pastures using aerial multispectral imagery and deep learning

Crop Science, Volume 66, Issue 2, March/April 2026.
Abstract Estimating the botanical composition in mixed pastures is challenging due to resource‐intensive sampling methods overlooking grassland spatial variability. We aimed to (I) classify bahiagrass (Paspalum notatum Flügge) and rhizoma peanut (Arachis glabrata Benth.) in grass–legume pastures using aerial multispectral imagery and machine learning, (
Igor L. Bretas, Chang Zhao, Jose C. B. Dubeux Jr., Yu Xin, Zhou Tang, Kevin R. Trumpp, Javier P. Acuna, Ian M. Small, Cleber H. L. de Souza   +8 more
wiley   +1 more source

A Plant‐Diversity Dark Spot at the Intersection of Three Biodiversity Hotspots: Environmental Drivers of Brassicaceae Richness in Türkiye

Ecology and Evolution, Volume 16, Issue 3, March 2026.
Türkiye lies at the intersection of three global biodiversity hotspots yet is recognised as a global plant‐diversity "dark spot." Using > 15,000 georeferenced herbarium records and spatial regression models, we examined the environmental drivers of Brassicaceae species and endemic richness across the country. Species richness increased with topographic
İlayda Dumlupınar, Barış Özüdoğru, Hakan Gür   +2 more
wiley   +1 more source

IT Challenges in Designing and Implementing Online Natural History Collection Systems

Diversity
Numerous institutions engaged in the management of Natural History Collections (NHC) are embracing the opportunity to digitise their holdings. The primary objective is to enhance the accessibility of specimens for interested individuals and to integrate ...
Marcin Lawenda, Paweł Wolniewicz
doaj   +1 more source

Spatial Structure Explains Morphological Variation Better Than Climatic Gradients in the South American Rattlesnake (Crotalus durissus)

Ecology and Evolution, Volume 16, Issue 3, March 2026.
We evaluated whether climatic gradients or spatial structure better explain body size variation in the South American rattlesnake (Crotalus durissus) across its wide geographic range. After explicitly accounting for spatial autocorrelation, climatic variables were not significant predictors of body size in either sex, whereas sex‐specific spatial ...
Mileny Otani, Henrique Caldeira Costa, Cláudio Henrique Zawadzki, Diego J. Santana   +3 more
wiley   +1 more source

‘EcoCleanR': enhancing data quality of biogeographic ranges with application for marine invertebrates

Ecography, Volume 2026, Issue 3, March 2026.
Published distribution data, while invaluable for understanding species' biogeography, often suffer from limitations such as dated and static representations of ranges, a bias toward latitudinal information, and lack of resolution in sampling frequency and variation in abundance throughout a species' distribution.
Priyanka Soni, Austin J. W. Hendy, David J. Bottjer   +2 more
wiley   +1 more source