Results 61 to 70 of about 1,997 (198)

Movement Strategies of Neotropical Nectarivorous Birds: Insights From High‐Andean Hummingbirds and Flowerpiercers

Biotropica, Volume 58, Issue 1, January 2026.
Nectar is a highly variable, mostly unpredictable resource in tropical mountains. How do nectarivorous birds such as this male Great Sapphirewing cope? Fine‐scaled tracking of hummingbirds and flowerpiercers shows flexibility in daily movement strategies in the high Andes, possibly in response to fluctuating local conditions such as weather and ...
Cristina Rueda‐Uribe, Pedro A. Camargo‐Martínez, Jonathan Espitia, Manuela Lozano‐Rocha, Juan Pablo Ríos, María Ángela Echeverry‐Galvis, Lesley T. Lancaster, Isabella Capellini, Justin M. J. Travis, Alejandro Rico‐Guevara   +9 more
wiley   +1 more source

M‐SADR: Mobile Self Adaptive Data Rate for Enhanced LoRa End‐Device Connectivity on the Move

International Journal of Communication Systems, Volume 38, Issue 15, October 2025.
The proposed M‐SADR method targets mobile LoRa end‐devices and achieves better performance, with a 2.4% improvement in packet delivery ratio and a 5.7% reduction in power consumption per successfully delivered packet. ABSTRACT Mobility is a critical aspect of the Internet of Things, reflecting the diverse and dynamic nature of potential applications ...
Vasileios Moysiadis, Panagiotis Radoglou‐Grammatikis, Evangelos Mourikis, Maria Zevgara, Dimitrios N. Skoutas, Charalabos Skianis, Panagiotis Sarigiannidis   +6 more
wiley   +1 more source

Modified Bancroft Algorithm for Multilateration Systems

Известия высших учебных заведений России: Радиоэлектроника, 2018
In multilateration systems, Bancroft algorithm is often used to estimate the location of objects. This algorithm is synthesized for satellite navigation systems.
A. A. Monakov
doaj   +1 more source

Regionalism in a Multilateral World [PDF]

Journal of Political Economy, 1998
Recent regional initiatives have been addressed from a Vinerian perspective of trade creation and trade diversion. This is true of both policy‐oriented economists, who tend to be critical of the initiatives, and theorists, who have added dynamic and gametheoretic elements to the Vinerian structure. This paper describes the stylized facts of much recent
openaire   +3 more sources

Multilateral resistance to migration [PDF]

Journal of Development Economics, 2011
Jesús Fernández-Huertas Moraga received financial support from the ECO2008-04785 project funded by the Spanish Ministry for Science and Innovation. Simone Bertoli received financial support from the Jean Monnet Fellowship at the Robert Schuman Centre, EUI.
Bertoli, Simone, Fernández-Huertas Moraga, Jesús   +1 more
openaire   +7 more sources

Whole Lake Behaviour of Sea‐Run Brown Trout During Pre‐Spawning Months

Ecology of Freshwater Fish, Volume 34, Issue 4, October 2025.
ABSTRACT Sea‐run brown trout use lake habitat extensively when it is available both before and after spawning. However, the ways in which brown trout actually use lakes remain poorly resolved. In Norway, some of these lakes are used as reservoirs for the effluent of high‐head power stations that tunnel mountain water through turbines, discharging the ...
Robert J. Lennox, Lotte Svengård Dahlmo, Cecilie Iden Nilsen, Henrik Baktoft, Knut Wiik Vollset   +4 more
wiley   +1 more source

Feasibility Assessment of LDACS-Based Wide Area Multilateration

, 2022
In this paper, an LDACS-based wide area multilateration approach is proposed as a passive cooperative surveillance alternative for civil aviation. Firstly, the underlying concept is introduced and a detailed proof of concept analysis carried out.
Bellido-Manganell, Miguel Angel, Schnell, Michael, Gräupl, Thomas, Filip-Dhaubhadel, Alexandra   +3 more
core   +1 more source

Underwater Localization via Wideband Direction-of-Arrival Estimation Using Acoustic Arrays of Arbitrary Shape

Sensors, 2020
Underwater sensing and remote telemetry tasks necessitate the accurate geo-location of sensor data series, which often requires underwater acoustic arrays. These are ensembles of hydrophones that can be jointly operated in order to, e.g., direct acoustic
Elizaveta Dubrovinskaya, Veronika Kebkal, Oleksiy Kebkal, Konstantin Kebkal, Paolo Casari   +4 more
doaj   +1 more source

Tracking large bees in open landscapes with active radio tags—Advantages and challenges using stationary receivers

Journal of Animal Ecology, Volume 94, Issue 9, Page 1638-1649, September 2025.
Studying the spatial ecology of ecologically relevant species supports the development of effective conservation strategies. Recent technological advancements in remote tracking methods now enable researchers to study large flower‐visiting insects and important pollinators, such as carpenter bees.
Sophie Kratschmer, Markus Milchram, Lukas Landler, Stephan Burgstaller, Magdalena Spießberger, Norbert Schuller, Daniel Gröticke, Henrike Wacker, Valentin Dönz, Anna Planitzer, Florian Ihle, Marcela Suarez‐Rubio, Julia Lanner   +12 more
wiley   +1 more source

Automatic detection for bioacoustic research: a practical guide from and for biologists and computer scientists

Biological Reviews, Volume 100, Issue 2, Page 620-646, April 2025.
ABSTRACT Recent years have seen a dramatic rise in the use of passive acoustic monitoring (PAM) for biological and ecological applications, and a corresponding increase in the volume of data generated. However, data sets are often becoming so sizable that analysing them manually is increasingly burdensome and unrealistic. Fortunately, we have also seen
Arik Kershenbaum, Çağlar Akçay, Lakshmi Babu‐Saheer, Alex Barnhill, Paul Best, Jules Cauzinille, Dena Clink, Angela Dassow, Emmanuel Dufourq, Jonathan Growcott, Andrew Markham, Barbara Marti‐Domken, Ricard Marxer, Jen Muir, Sam Reynolds, Holly Root‐Gutteridge, Sougata Sadhukhan, Loretta Schindler, Bethany R. Smith, Dan Stowell, Claudia A.F. Wascher, Jacob C. Dunn   +21 more
wiley   +1 more source