Results 51 to 60 of about 157,499 (290)

The Annual Cycle of German Adult Ospreys – Studies in the Breeding and Wintering Areas as Well as During Migration Since 1995 by Means of Satellite Telemetry

open access: yesПернатые хищники и их охрана, 2018
German Ospreys (Pandion haliaetus) were thought to migrate to sub-Saharan Africa. However, most of the many ring recoveries were from juvenile birds, and adults had never been satellite-tracked.
Bernd-Ulrich Meyburg   +3 more
doaj  

Feeding habits of stone martens in a Hungarian village and its surroundings [PDF]

open access: yes, 2003
The feeding habits of the stone marten (Martes foina) were studied by scat analysis in a village (n = 423 samples) and its surrounding agricultural environment (n = 572), during a six-year study (three periods), in southwest Hungary.
Lanszki, József
core  

Interactions between shorebirds and benthic invertebrates at Culbin Sands lagoon, NE Scotland: effects of avian predation on their prey community density and structure [PDF]

open access: yes, 2007
In the North Sea, during autumn-winter, intertidal flats often receive a massive influx of migratory shorebirds (wildfowl, waders and seabirds), which utilise the high prey densities that are available.
Boyle, Peter R.   +2 more
core   +3 more sources

Vision‐Augmented Wearable Interfaces: Bioinspired Approaches for Realistic AI‐Human‐Machine Interaction

open access: yesAdvanced Materials Technologies, EarlyView.
This review presents recent progress in vision‐augmented wearable interfaces that combine artificial vision, soft wearable sensors, and exoskeletal robots. Inspired by biological visual systems, these technologies enable multimodal perception and intelligent human–machine interaction.
Jihun Lee   +4 more
wiley   +1 more source

A CHECKLIST OF BIRDS OF PREY OF RAWALPINDI, ISLAMABAD AND ADJACENT AREAS

open access: yesJournal of Bioresource Management, 2014
Wildlife is declining worldwide due to loss of habitat, pollution, introduction of exotic species, climatic changes etc. Birds of prey are believed to be rapidly declining in Pakistan though no reliable recent data is available and the available ...
Nadia Yousaf, Madeeha Manzoor
doaj   +1 more source

Community dynamics of insular biotas in space and time [PDF]

open access: yes, 2004
The various features determining species distributions remain enigmatic in ecology. This thesis deals with the spatial and temporal dynamics of land birds on the islands of the Dahlak archipelago, the Red Sea, and of mammals, birds and reptiles among the
Azeria, Ermias Tesfamichael
core  

Species abundance patterns in an ecosystem simulation studied through Fisher's logseries [PDF]

open access: yes, 2010
We have developed an individual-based evolving predator-prey ecosystem simulation that integrates, for the first time, a complex individual behaviour model, an evolutionary mechanism and a speciation process, at an acceptable computational cost.
Agrell   +64 more
core   +3 more sources

Information Transmission Strategies for Self‐Organized Robotic Aggregation

open access: yesAdvanced Robotics Research, EarlyView.
In this review, we discuss how information transmission influences the neighbor‐based self‐organized aggregation of swarm robots. We focus specifically on local interactions regarding information transfer and categorize previous studies based on the functions of the information exchanged.
Shu Leng   +5 more
wiley   +1 more source

Post-fledging Dependent Behaviour, Dispersion and Migration of Young Eastern Imperial Eagles from Slovakia as Revealed by Satellite Telemetry

open access: yesПернатые хищники и их охрана, 2018
In 2005, five nestling Imperial Eagles (Aquila heliaca) were fitted with battery-powered GPS Satellite Transmitters (PTTs) in Slovakia to study their behaviour after fledging, two of them in the east and the other three in the west of the country.
Bernd-Ulrich Meyburg   +4 more
doaj  

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

open access: yesAdvanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang   +14 more
wiley   +1 more source

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