Results 91 to 100 of about 3,204,309 (331)

Penguin pollution in $\beta$ and $\beta_s$ [PDF]

, 2017
The mixing-induced CP asymmetries in $B_d \to J/\psi K_S$ and $B_s \to J/\psi \phi$ are essential to detect or constrain new physics in the $B_d\! - \overline{\!B}{}_d$ and $B_s\! - \overline{\!B}{}_s$ mixing amplitudes, respectively.
Nierste, Ulrich
core   +1 more source

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

Remote 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, Tatsuya Amano, Thomas Bregnballe, Alejandro Corregidor‐Castro, Roxane Francis, Diego Gallego‐García, Jarrod C. Hodgson, Landon R. Jones, César R. Luque‐Fernández, Dominik Marchowski, John McEvoy, Ann E. McKellar, W. Chris Oosthuizen, Christian Pfeifer, Martin Renner, José Hernán Sarasola, Mateo Sokač, Roberto Valle, Adam Zbyryt, Richard A. Fuller   +19 more
wiley   +1 more source

Can thermoclines be a cue to prey distribution for marine top predators? A case study with little penguins. [PDF]

PLoS ONE, 2012
The use of top predators as bio-platforms is a modern approach to understanding how physical changes in the environment may influence their foraging success.
Laure Pelletier, Akiko Kato, André Chiaradia, Yan Ropert-Coudert   +3 more
doaj   +1 more source

Measuring beta_s with Bs -> K0(*) K0bar(*) -- a Reappraisal

, 2012
The Bs-Bsbar mixing phase, beta_s, can be extracted from Bs -> K0(*) K0bar(*), but there is a theoretical error if the second amplitude, Vub* Vus P'uc, is non-negligible. Ciuchini, Pierini and Silvestrini (CPS) have suggested measuring Puc in Bd -> K0(*)
Aaij, Aaltonen, Aaltonen, Abazov, Abe, Alakabha Datta, Aubert, Aubert, Barberio, Bauer, Beneke, Beneke, Beneke, Beneke, Bhubanjyoti Bhattacharya, Chiang, Ciuchini, David London, Imbeault, Kagan, Keum, Maxime Imbeault, Nakahama, Nakamura   +23 more
core   +1 more source

Semi‐automated seal detection on the Western Antarctic Peninsula: an unsupervised machine learning approach for detecting ice seals in aerial survey data

Remote Sensing in Ecology and Conservation, EarlyView.
This study presents a semi‐automated, rule‐based image analysis pipeline to detect ice seals in aerial surveys of the Western Antarctic Peninsula during an unusually low sea ice year. By using simple hierarchical clustering instead of deep learning, the method substantially reduced human annotation effort while achieving 82% recall, identifying 758 ...
Claire McGinnity, Connor C.G. Bamford, Nathan Fenney, Andrew Fleming, Jaume Forcada, Michael S. Tift, Luis A. Hückstädt, Daniel P. Costa, Peter T. Fretwell   +8 more
wiley   +1 more source

Post-fledging dispersal of king penguins (Aptenodytes patagonicus) from two breeding sites in the South Atlantic. [PDF]

PLoS ONE, 2014
Most studies concerning the foraging ecology of marine vertebrates are limited to breeding adults, although other life history stages might comprise half the total population.
Klemens Pütz, Phil N Trathan, Julieta Pedrana, Martin A Collins, Sally Poncet, Benno Lüthi   +5 more
doaj   +1 more source

Impacts of local human activities on the Antarctic environment [PDF]

, 2008
We review the scientific literature, especially from the past decade, on the impacts of human activities on the Antarctic environment. A range of impacts has been identified at a variety of spatial and temporal scales.
Agnew, Agnew, Ainley, Baker, Ballance, Bargagli, Barrera-Oro, Brown, C.A. Moreno, Chen, Clarke, Clarke, Constable, Constable, Constable, Convey, Convey, Convey, Convey, Cooney, Croxall, Croxall, D.G. Ainley, de Leeuw, de Poorter, Delord, DeVries, Duhamel, Edwards, Fraser, Frenot, Gon, Greenslade, Greenslade, Greenslade, Gremmen, Gröndahl, Hansom, Hee, Hemmings, Hofman, Holmes, Hughes, Huiskes, I. Snape, J. Scott, Jones, Jouventin, K.A. Hughes, Kennicutt, Kerry, Knox, Kock, Kock, Kock, Kohnen, Laws, McDonald, Moreno, Morris, Muller-Schwarze, Naveen, Naveen, Nicol, Ohtani, Olech, Otley, P. Convey, Pauly, Pauly, Peter, Pfeiffer, Pfeiffer, Rounsevell, S. Pfeiffer, Salwicka, Sjoling, Sladen, Smith, Smith, Snape, Snape, Summerson, T. Tin, Tejedo, Thor, Trathan, Weimerskirch, Wheeler, Willock, Woehler, Z.L. Fleming   +91 more
core   +2 more sources

Historical remote sensing highlights long‐term persistence of Emperor Penguin (Aptenodytes forsteri) colonies

Remote Sensing in Ecology and Conservation, EarlyView.
Remote sensing can reveal population dynamics of Antarctic penguin colonies. In this study, we analyze emperor penguin (Aptenodytes forsteri) guano stains in remote sensing imagery and discover colony presence predating known records for 18 colonies across Antarctica.
Martynas Bielinis, Michelle LaRue, Benjamin M. Kraemer, Catalina Munteanu   +3 more
wiley   +1 more source

Quantifying wildlife conflicts with metabarcoding and traditional dietary analyses: applied to seabird predation by long-nosed fur seals

Frontiers in Marine Science
Wildlife conflicts require robust quantitative data on incidence and impacts, particularly among species of conservation and cultural concern. We apply a multi-assay framework to quantify predation in a southeastern Australian scenario where complex ...
Natasha A. Hardy, Natasha A. Hardy, Natasha A. Hardy, Tina E. Berry, Tina E. Berry, Michael Bunce, Nathan J. Bott, Will F. Figueira, Rebecca R. McIntosh   +8 more
doaj   +1 more source

Precise limits from lepton flavour violating processes on the Littlest Higgs model with T-parity

, 2009
We recalculate the leading one-loop contributions to mu > e gamma and mu -> eee in the Littlest Higgs model with T-parity, recovering previous results for the former.
A. Denner, ATLAS collaboration, C. Tarantino, C.-X. Yue, CMS collaboration, F. del Aguila, F. del Águila, F. Penunuri, H. Georgi, H.-C. Cheng, H.-C. Cheng, I. Low, J. Hubisz, J. Hubisz, J. Wess, J.I Illana, M. Blanke, M. Blanke, M. Blanke ., M.D Jenkins, N. Arkani-Hamed, T. Han, T.P. Cheng, W. Altmannshofer .   +23 more
core   +1 more source