Results 31 to 40 of about 29,980 (179)

Big Bird: A global dataset of birds in drone imagery annotated to species level

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Drones are a valuable tool for surveying birds, but manually detecting and identifying birds in drone images is costly. We assembled a diverse dataset of 23 865 images of birds captured with 21 different drones across 11 countries. We labelled 4824 of these images, detailing the location, species, posture category, age category, and sex of 49 990 birds
Joshua P. Wilson   +19 more
wiley   +1 more source

Vision of a Visipedia [PDF]

open access: yes, 2010
The web is not perfect: while text is easily searched and organized, pictures (the vast majority of the bits that one can find online) are not. In order to see how one could improve the web and make pictures first-class citizens of the web, I explore
Perona, Pietro
core   +1 more source

A national assessment of waterbird hunting in coastal wetlands of Suriname, South America

open access: yesConservation Science and Practice, EarlyView.
We examined waterbird harvest levels in Suriname using hunter survey data from 2006 and 2016. The analysis showed a significant decline in the average harvest per hunter over the decade, except for blue‐winged teal and migratory shorebirds. However, the sustainability of current harvest levels remains uncertain, underscoring the need for a national ...
David S. Mizrahi   +6 more
wiley   +1 more source

Citizen science reveals host‐switching in louse flies and keds (Diptera: Hippoboscidae) during a period of anthropogenic change

open access: yesMedical and Veterinary Entomology, EarlyView.
A study of louse flies in the United Kingdom, Isle of Man, and Ireland found 212 different interactions between Hippoboscidae and their hosts, of which 70 were previously unrecorded. No louse flies were found on aquatic species of birds. Host‐switching to gulls (Laridae) has occurred during a period in which these species have started relying on ...
Denise C. Wawman   +2 more
wiley   +1 more source

Ergonomic standards for pedestrian areas for disabled people: literature review and consultations [PDF]

open access: yes, 1988
As part of the project for the Transport and Road Research Laboratory concerned with the development of design guidance for pedestrian areas and footways to satisfy the needs of disabled and elderly people, a thorough examination of the literature ...
Berrett, B.   +3 more
core  

Navigating Practical, Political, and Ethical Challenges of Long‐Term Human Biology Field Research: The Shuar Health and Life History Project

open access: yesAmerican Journal of Human Biology, Volume 38, Issue 4, April 2026.
ABSTRACT Major advances in understanding human biology and health have been made possible by long‐term field research projects with Indigenous peoples, whose ecological settings and lifeways are distinct from majority populations in high‐income settings.
J. Josh Snodgrass   +7 more
wiley   +1 more source

Trump, Populism, Fascism, and the Road Ahead [PDF]

open access: yes, 2017
This review essay offers a discussion of some recent studies that help to explain the election of Donald Trump as president of the USA. The studies examine Trump as “media spectacle,” analyze his support among Tea Partiers, and discuss his backing by ...
van der Linden, Harry
core   +2 more sources

Establishing Hierarchical Classification Responding: Directly Trained and Emergent Responses

open access: yesBehavioral Interventions, Volume 41, Issue 2, April 2026.
ABSTRACT Hierarchical classification responding (HCR) describes a collection of responses that require discrimination of logical relationships between stimuli based on their position in a categorical hierarchy. This study established HCR for a new hierarchy in young children through discrete trial instruction.
George H. Noell   +3 more
wiley   +1 more source

Monitoring the Great White Pelican elecanus onocotalus Linnaeus, 1 breeding population using drones in 1 the Danube Delta Romania

open access: yesScientific Annals of the Danube Delta Institute, 2017
The Danube Delta colony of the Great White Pelican (Peea a) was evaluated in 2016 at 17,000 pairs, with a minimum of 15,000 and a maximum of 19,000 pairs. We used unmanned aerial vehicle UAV) technology to count the number of nesting birds in the colony.
MARINOV Mihai   +7 more
doaj  

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