Results 31 to 40 of about 304,813 (194)

21 000 birds in 4.5 h: efficient large‐scale seabird detection with machine learning

Remote Sensing in Ecology and Conservation, 2021
We address the task of automatically detecting and counting seabirds in unmanned aerial vehicle (UAV) imagery using deep convolutional neural networks (CNNs).
Benjamin Kellenberger, Thor Veen, Eelke Folmer, Devis Tuia   +3 more
doaj   +1 more source

Counting cases, conserving species: addressing highly pathogenic avian influenza in wildlife

Biological Reviews, EarlyView.
ABSTRACT Highly pathogenic avian influenza (HPAI) has become a critical threat to wildlife, shifting from a seasonal epizootic to a persistent, year‐round panzootic with global consequences. Here, we summarise the origin, evolutionary mechanisms, and expanding host range of the current H5N1 virus (clade 2.3.4.4b) and assess its impact on wildlife. Over
Ulrich Knief, Sandra Bouwhuis, Anja Globig, Anne Günther, Wouter Courtens   +4 more
wiley   +1 more source

De vangst van sterns en het verwijderen van ringen in Afrika: een probleem = The problem of tern catches and the removal of rings in Africa [PDF]

, 1996
In the West African winter quarters the practice of catching European terns has traditionally been widespread. Birds are caught for food or for pleasure.
Brenninkmeijer, A., Stienen, E.W.M.
core  

Patterns in tern trophic diversity in a region experiencing rapid climate change

Ecosphere
Foraging plasticity provides a mechanism for long‐lived species to adapt to rapidly changing environments. When shifts in food availability occur, individual variation in plasticity can lead to an increase in within‐species trophic diversity.
Natasha J. Gownaris, Linda J. Welch, Jill E. Tengeres   +2 more
doaj   +1 more source

Interface Engineering Remarkably Improves the Stability of Fe‐Based Electrode for Alkaline Water Electrolysis at Industrial Ampere‐Level Current Density

Carbon Energy, EarlyView.
Interface engineering improves the stability of iron‐based industrial oxygen evolution catalysts by more than 2000 times at ampere‐level current density. ABSTRACT Iron‐based self‐supported electrocatalysts offer cost‐effective oxygen evolution activity but suffer from severe stability degradation under industrial operation.
Chunfa Liu, Jinxian Feng, Shuyang Peng, Di Liu, Lun Li, Ziwen Feng, Juanjuan Wang, Weng Fai Ip, Hongchao Liu, Jin‐Song Hu, Hui Pan   +10 more
wiley   +1 more source

Grote sterns Sterna sandvicensis verwijderen eischalen en dode kuikens uit de kolonie = Sandwich terns remove egg shells and dead chicks from the colony [PDF]

, 1997
Observations of Sandwich Terns removing eggshell fragments are reported. On one occasion a dead chick was seen to be carried away from the colony. This is not a common behaviour in Sandwich Terns, but it seems to be functional because eggshells and dead ...
Brenninkmeijer, A., Stienen, E.W.M., Van Tienen, P.G.M.   +2 more
core  

A photographic approach to monitor spatial dynamics and population trends of Arctic Tern colonies in two touristic bird watching spots in the Westfjords, Iceland

Avocetta
This study examines the population dynamics and spatial distribution of Arctic Terns in two tourist sites in Iceland's Westfjords: Vigur Island and Súðavík. In 2023, counts revealed 458 terns in Súðavík and 991 in Vigur. We propose a monitoring approach
David Pierre Miles-Gaches, Alexandre Lhériau-Nice   +1 more
doaj   +1 more source

Year-Round Movements of Sooty Terns (Onychoprion fuscatus) Nesting Within One of the Atlantic’s Largest Marine Protected Areas

Frontiers in Marine Science, 2021
Seabirds are among the most threatened birds as a result of acute exposure to many anthropogenic threats. Their effective conservation requires a detailed understanding of how seabirds use marine habitats.
S. James Reynolds, S. James Reynolds, Colin P. Wearn, B. John Hughes, B. John Hughes, Roger C. Dickey, Lucy J. H. Garrett, Lucy J. H. Garrett, Sean Walls, Fay T. Hughes, Nicola Weber, Nicola Weber, Sam B. Weber, Sam B. Weber, Eliza H. K. Leat, Eliza H. K. Leat, Kenickie Andrews, Kenickie Andrews, Jaime A. Ramos, Vitor H. Paiva   +19 more
doaj   +1 more source

Seasonal drivers of plant–soil–microbial community structure and functions in Western Himalayan grasslands, Pakistan

Grassland Research, EarlyView.
Plant species richness was greater in summer in both alpine and subalpine grassland ecosystems. Soil moisture demonstrates significant positive correlations with soil organic carbon and total nitrogen across seasonal periods. Microbial α‐diversity peaks during summer but maintains functional stability across seasons.
Huma Ali, Muhammad Rafiq, Allan Degen, Ben Sparrow, Zhanhuan Shang   +4 more
wiley   +1 more source

Impact of wind turbines on birds in Zeebrugge (Belgium) [PDF]

, 2007
We studied the impact of a wind farm (line of 25 small to medium sized turbines) on birds at the eastern port breakwater in Zeebrugge, Belgium, with special attention to the nearby breeding colony of Common Tern Sterna hirundo, Sandwich Tern Sterna ...
Everaert, J., Stienen, E.W.M.
core