Results 61 to 70 of about 33,112 (263)

Monitoring feral pigs (Sus scrofa): Complementarity between autonomous sensing methods increases detection probability

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Invasive alien species are a major threat for biodiversity worldwide and effective monitoring is paramount to inform management. In this study we used a multi‐season occupancy model to assess probability of detection between camera traps and passive acoustic recorders for feral pigs (Sus scrofa) during 1 year of data collection.
Marina D. A. Scarpelli   +4 more
wiley   +1 more source

Longitudinal dietary resilience of lion (Panthera leo) in a semi-arid fenced reserve of South Africa

open access: yesKoedoe: African Protected Area Conservation and Science
Understanding the dietary composition of large carnivores and how these relate to the availability of suitable habitat and prey is crucial to population management, especially in fenced reserves. This study aimed to determine the current diet of the lion
Robert Le Brun   +5 more
doaj   +1 more source

An evaluation of the accuracy and performance of lightweight GPS collars in a suburban environment. [PDF]

open access: yesPLoS ONE, 2013
The recent development of lightweight GPS collars has enabled medium-to-small sized animals to be tracked via GPS telemetry. Evaluation of the performance and accuracy of GPS collars is largely confined to devices designed for large animals for ...
Amy L Adams   +3 more
doaj   +1 more source

First In-orbit Experience of TerraSAR-X Flight Dynamics Operations [PDF]

open access: yes, 2007
TerraSAR-X is an advanced synthetic aperture radar satellite system for scientific and commercial applications that is realized in a public-private partnership between the German Aerospace Center (DLR) and the Astrium GmbH.
D'Amico, Simone   +5 more
core  

Long-lasting, kin-directed female interactions in a spatially structured wild boar social network [PDF]

open access: yes, 2014
We thank W. Jędrzejewski for his support and logistical help in trapping wild boar. We are grateful to R. Kozak, A. Waszkiewicz and many students and volunteers for their help with fieldwork as well as to A. N. Bunevich, T.
Jędrzejewska, Bogumiła   +4 more
core   +3 more sources

Quantifying Migratory Bat Movements in Central Europe Across Seasons and Years Using a Vertical‐Looking Radar

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Vertical‐looking radar provides a first multi‐year analysis of migratory bat phenology in Europe. Bat activity was lowest in winter, increased from spring, and peaked in summer, with similar timing of pre‐ and post‐maternity migrations across years.
Silvia Giuntini   +5 more
wiley   +1 more source

Design and implementation of hardware-in-the-loop (HIL) test-bed for spacecraft attitude control [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2019
In this paper, the design and implementation of hardware-in-the-loop (HIL) test-bed for spacecraft attitude control are presented with respect to the practical consideration.
Vahid Bohlouri   +5 more
doaj   +1 more source

Preprocessing Procedure for Propagation Measurements on MEO Satellite Links

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper presents a software tool designed for preprocessing data from an experimental campaign aimed at characterizing the tropospheric propagation channel using Medium Earth Orbit (MEO) satellites. The collected data provide critical insights into the channel in scenarios involving continuous variations in azimuth and elevation, along with
Marlene Brás   +2 more
wiley   +1 more source

Distribution of the brown bear (Ursus arctos marsicanus) in the Central Apennines, Italy, 2005-2014 [PDF]

open access: yes, 2017
Despite its critical conservation status, no formal estimate of the Apennine brown bear (Ursus arctos marsicanus) distribution has ever been attempted, nor a coordinated effort to compile and verify all recent occurrences has ever been ensured.
Altea, Tiziana   +15 more
core  

Automated Synchronization of Driving Data Using Vibration and Steering Events

open access: yes, 2016
We propose a method for automated synchronization of vehicle sensors useful for the study of multi-modal driver behavior and for the design of advanced driver assistance systems. Multi-sensor decision fusion relies on synchronized data streams in (1) the
Abdić, Irman   +5 more
core   +1 more source

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