Results 71 to 80 of about 154,144 (343)

Vision‐Assisted Avocado Harvesting with Aerial Bimanual Manipulation

open access: yesAdvanced Robotics Research, EarlyView.
This work outlines the design and implementation of a bimanual aerial robot that employs visual perception and learning to detect, reach, and harvest avocados. A new gripper and fixer arm assembly is used to harvest avocados, while visual perception enables the detection of avocados and estimation of their position and orientation for determining ...
Zhichao Liu   +3 more
wiley   +1 more source

The food spectrum of sparrowhawk (Accipiter nisus L.) and kestrel (Falco tinnunculus L.) in the Chřiby Upland

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2009
In 2006–2008, mapping the sparrowhawk (Accipiter nisus L.) and kestrel (Falco tinnunculus L.) occurred in the SE part of the Chřiby Upland. At the same time, the food spectrum of these birds of prey was determined during nesting periods.
Martin Tomešek, Petr Čermák
doaj   +1 more source

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

Condors, Caracaras and the Antisana Ecological Reserve: Have Recent Conservation Efforts Backfired!

open access: yesПернатые хищники и их охрана, 2018
The 1993 creation of the 120,000 ha Antisana Ecological Reserve (Ecuador) to protect the unique flora and fauna surrounding the Volcano Antisana continues to evolve.
Mark R. Welford
doaj  

Differential detectability of rodents and birds in scats of ocelots, Leopardus pardalis (Mammalia: Felidae)

open access: yesZoologia (Curitiba), 2011
Scat analysis is a valuable tool for the description and quantification of mammal diets. However, estimating the number of prey eaten using prey remains found in feces is difficult mainly due to differential digestibility of prey.
Mathias M. Pires   +3 more
doaj   +1 more source

Diet of the weasel in Hungary [PDF]

open access: yes, 2007
The diet of weasel (Mustela nivalis) collected in agricultural mosaic plain regions of Hugary was studied using the analysis of stomach and rectum contents (n = 155).
Heltai, Miklós, Lanszki, József
core  

Brain‐Wide Spatiotemporally Distinct Traveling Waves Drive Anxiety‐Like Behaviors in Mice

open access: yesAdvanced Science, EarlyView.
J.Liu et al. reveal the complete propagation dynamics of cortical traveling waves, from local circuitry initiation to long‐range propagation, and identify their functional relevance in modulating anxiety‐like behaviors and underlying cellular neuroplasticity in mice.
Jiaming Liu   +15 more
wiley   +1 more source

Intercolony Comparison of Diets of Western Gulls in Central California [PDF]

open access: yes, 2016
As human populations expand, they force free-ranging animals to adapt to an increasingly urban environment, resulting in changes in diets, reproductive success, and mortality.
Cassell, Anne L.
core   +1 more source

Toward a Species Search Engine: KISSE Offers a Rigorous Statistical Framework for Bone Collagen Tandem Mass Spectrometry Data

open access: yesAdvanced Science, EarlyView.
The Species Search Engine (KISSE) is a novel statistical approach for identifying species from collagen peptides, using a curated library of sequences and their relative abundances derived from shotgun proteomics. Abstract DNA and bone collagen are two key sources of resilient molecular markers used to identify species from their remains.
Hassan Gharibi   +8 more
wiley   +1 more source

Sustainable Protection of the Lesser Spotted Eagle in Germany by Purchasing Land and Managing the Reproduction Rate

open access: yesПернатые хищники и их охрана, 2018
The Lesser Spotted Eagle (Clanga [Aquila] pomarina) is the most endangered German eagle species, and is close to extirpation in the country. Various factors are responsible for the decline of the population, and the shrinking of its distribution to a ...
Bernd-Ulrich Meyburg   +12 more
doaj  

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