Results 151 to 160 of about 66,990 (295)

Sampling, Mobility, and Anchoring in Small‐Body Sampling Robots: A Comprehensive Review

SmartBot, EarlyView.
Small‐body sampling robots are exploration systems that perform contact, sampling, and stable operations on microgravity bodies such as asteroids and comets. The authors review representative robot architectures and key technologies, focusing on the mechanisms, evolution, and coupling of sampling, mobility, and anchoring.
Yurui Shen, Yixin Zhu, Mingxia Bao, Ting Zhang, Jun Wu, Jingbin Hao, Dezheng Hua, Xinhua Liu   +7 more
wiley   +1 more source

Evaluation of Sentinel-2 and MODIS NDVI Accuracy in Heterogeneous Agricultural Landscapes Using UAV Observations: A Case Study in the Heihe River Basin

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The Sentinel-2 and the Moderate Resolution Imaging Spectroradiometer (MODIS) Normalized Difference Vegetation Index (NDVI) products are the most widely used datasets for vegetation researches by remote sensing.
Liying Geng, Tao Che, Junlei Tan, Haibo Wang, Xufeng Wang   +4 more
doaj   +1 more source

Ontogeny of foraging behaviour in an opportunistic gull inhabiting urban marine ecosystems

Wildlife Biology, EarlyView.
Urbanization affects ecosystems by reducing biodiversity and displacing species from native habitats. While some suffer, others, like urban wildlife, adapt through innovative feeding and behaviours that improve their fitness in human‐altered settings. Despite research on wildlife in urban areas, the development of foraging behaviour in urban species is
Joan Navarro, Víctor Martín-Vélez, Joan Giménez, José Antonio Garcia, Pablo Cermeño, Jordi Figuerola, Raül Aymí, Tomás Montalvo   +7 more
wiley   +1 more source

Multi-Sensor Image Classification Using the Random Forest Algorithm in Google Earth Engine with KOMPSAT-3/5 and CAS500-1 Images

Remote Sensing
This study conducted multi-sensor image classification by utilizing Google Earth Engine (GEE) and applying satellite imagery from Korean Multi-purpose Satellite 3 (KOMPSAT-3), KOMPSAT-5 SAR, Compact Advanced Satellite 500-1 (CAS500-1), Sentinel-1, and ...
Jeonghee Lee, Kwangseob Kim, Kiwon Lee
doaj   +1 more source

Assessing habitat suitability for black grouse broods at the bioregional scale

Wildlife Biology, EarlyView.
The black grouse Lyrurus tetrix, a galliform species emblematic of the European Alps, is currently threatened by habitat change, particularly given the closure of heathland linked to the rising tree line at higher altitudes. The presence of heathlands in good ecological condition is, however, imperative for the species' reproduction.
Alexandre T. M. Defossez, Samuel Alleaume, Marc Montadert, Josselin Giffard‐Carlet, Dino Ienco, Nadia Guiffant, Sandra Luque   +6 more
wiley   +1 more source

A dog makes a difference: exploration of potential biases in moose‐hunting associated citizen science

Wildlife Biology, EarlyView.
The collection of citizen data is often employed to generate insights regarding species distribution, population sizes, and population structure; however, biases inherent in citizen science are seldom addressed. In this study, we examined the factors influencing hunters' observations of moose, Alces alces, during the moose hunting season in Finland. By
Tarmo Ketola, Venla Kaukokari, Iina Mattila, Sanniminja Koskenala, Saastamoinen Kukka‐Maaria, Anssi Lensu, Leena Ruha, Vesa Nivala, Jyrki Pusenius   +8 more
wiley   +1 more source

A Machine Learning and Remote Sensing‐Based Model for Algae Pigment and Dissolved Oxygen Retrieval on a Small Inland Lake

Water Resources Research
Excessive algae growth can lead to negative consequences for ecosystem function, economic opportunity, and human and animal health. Due to the cost‐effectiveness and temporal availability of satellite imagery, remote sensing has become a powerful tool ...
Maxwell R. W. Beal, Mutlu Özdoğan, Paul J. Block   +2 more
doaj   +1 more source

WATERHYPERNET: a prototype network of automated in situ measurements of hyperspectral water reflectance for satellite validation and water quality monitoring

Frontiers in Remote Sensing
This paper describes a prototype network of automated in situ measurements of hyperspectral water reflectance suitable for satellite validation and water quality monitoring.
Kevin G. Ruddick, Vittorio E. Brando, Alexandre Corizzi, Ana I. Dogliotti, David Doxaran, Clémence Goyens, Joel Kuusk, Quinten Vanhellemont, Dieter Vansteenwegen, Agnieszka Bialek, Pieter De Vis, Héloise Lavigne, Matthew Beck, Kenneth Flight, Anabel Gammaru, Luis González Vilas, Kaspars Laizans, Francesca Ortenzio, Pablo Perna, Estefania Piegari, Lucas Rubinstein, Morven Sinclair, Dimitry Van der Zande   +22 more
doaj   +1 more source

Delineating seasonal shifts in reindeer habitat and diet selection by integrating GPS telemetry and stable isotope analysis

Wildlife Biology, EarlyView.
Seasonal changes shape herbivore behaviour by altering forage availability and habitat conditions; however, few studies integrate diet and habitat selection data across temporal scales. This study uses seasonality as a unifying framework to combine fine‐scale GPS‐based habitat selection data with broader‐scale dietary information from stable isotope ...
Tamara A. Hiltunen, Sami M. Kivelä, Jouko Kumpula, Jouni O. Aspi, Jeffrey M. Welker   +4 more
wiley   +1 more source

The analysis ready multispectral data and machine learning algorithms for mapping groundwater-dependent invasive alien plants in Heuningnes Catchment, South Africa

Geocarto International
Field monitoring of groundwater-dependent invasive alien plants (GDIAPs), though accurate, is spatially limited and prone to misclassification bias.
Mmasechaba L. Moropane, Cletah Shoko, Mhosisi Masocha, Timothy Dube   +3 more
doaj   +1 more source