Results 11 to 20 of about 544,725 (129)

A red knot as a black swan:How a single bird shows navigational abilities during repeat crossings of the Greenland Icecap [PDF]

Journal of Avian Biology, Volume 51, Issue 8, August 2020., 2020
Despite the wealth of studies on seasonal movements of birds between southern nonbreeding locations and High Arctic breeding locations, the key mechanisms of navigation during these migrations remain elusive.
Able K. P., Alerstam T., Alerstam T., Alerstam T., Alerstam T., Anne Dekinga, Barrie D., Benjamin Gnep, Bent A. C., David C. Douglas, Davidson N. C., Dick W. J. A., Eva M. A. Kok, Gudmundsson G. A., Gudmundsson G. A., Hagstrum J. T., Hijmans R. J., Imboden C., Kok E. M. A., Kuyt E., Morrison R. I. G., Nettleship D. N., Ottosson U., Papi F., Paul W. Howey, Sandberg R., Sandberg R., T. Lee Tibbitts, Taleb N. N., Theunis Piersma, Wallace J. R., Wilson J. R., Wiltschko W., Winkler D. W.   +33 more
core   +3 more sources

Migratory swans individually adjust their autumn migration and winter range to a warming climate

Global Change Biology, Volume 29, Issue 24, Page 6888-6899, December 2023., 2023
Little is known about how migratory animals respond to climate warming in the non‐breeding season, and how such responses can lead to range shifts. Using multi‐year GPS tracks of Bewick's swans, large Arctic‐breeding migratory waterbirds, we examined the effect of temperature on autumn migration and interannual winter distance.
Hans Linssen, E. Emiel van Loon, Judy Z. Shamoun‐Baranes, Rascha J. M. Nuijten, Bart A. Nolet   +4 more
wiley   +1 more source

The agential perspective: Countermapping the modern synthesis

Evolution &Development, Volume 25, Issue 6, Page 335-352, November 2023., 2023
The figure depicts and summarizes two perspectives on the evolution of organisms, from past to present. On the left is a depiction of the Modern Synthesis Perspective, which depicts a gene's‐eye‐view of an organism's evolutionary history from left to right, and identifies the universal dynamics and distortion of biological details that accompany it. On
Denis M. Walsh, Gregory Rupik
wiley   +1 more source

Replacement drives native β‐diversity of British avifauna, while richness differences shape alien β‐diversity

Diversity and Distributions, Volume 29, Issue 1, Page 61-74, January 2023., 2023
Abstract Aim We explored the range shifts of alien and native birds, the responses of alien and native β‐diversity to abiotic factors, and the effect of native diversity on alien β‐diversity in two time periods. Location Great Britain. Time period 1968–1972, 2007–2011. Taxa studied Breeding birds.
Maria Lazarina, Stefanos P. Sgardelis, Danai‐Eleni Michailidou, Mariana Tsianou, Aristi Andrikou‐Charitidou, Konstantinos Touloumis, Athanasios S. Kallimanis   +6 more
wiley   +1 more source

Regional wind patterns likely shape a seasonal migration detour

Journal of Avian Biology, Volume 51, Issue 11, November 2020., 2020
Migrating animals should optimise time and energy use when migrating, travelling directly to their destination. Detours from the most direct route may arise however because of barriers and weather conditions. Identifying how such situations arise from variable weather conditions is crucial to understand population response in the light of increased ...
R. Patchett, W. Cresswell
wiley   +1 more source

Spherical Trigonometry of the Projected Baseline Angle [PDF]

, 2008
The basic geometry of a stellar interferometer with two telescopes consists of a baseline vector and a direction to a star. Two derived vectors are the delay vector, and the projected baseline vector in the plane of the wavefronts of the stellar light ...
Mathar, Richard J.
core   +3 more sources

THE LOGARITHMIC SPIRAL AND ITS SPHERICAL COUNTERPART

Journal of Industrial Design and Engineering Graphics, 2020
Logarithmic spirals are isogonal trajectories of pencils of lines. From a series of geometric consequences, we pick out a few which are relevant for kinematics: When a logarithmic spiral rolls on a line, its asymptotic point traces a straight line. Hence,
Hellmuth Stachel, Giorgio Figliolini, Jorge Angeles   +2 more
doaj   +2 more sources

Motions about a fixed point by hypergeometric functions: new non-complex analytical solutions and integration of the herpolhode [PDF]

, 2018
We study four problems in the dynamics of a body moving about a fixed point, providing a non-complex, analytical solution for all of them. For the first two, we will work on the motion first integrals. For the symmetrical heavy body, that is the Lagrange-
Ritelli, Daniele, Scarpello, Giovanni Mingari   +1 more
core   +2 more sources

Underground testing: Name‐altering practices as probes in electronic music

The British Journal of Sociology, Volume 71, Issue 3, Page 572-589, June 2020., 2020
Abstract Name‐altering practices are common in many creative fields—pen names in literature, stage names in the performing arts, and aliases in music. More than just reflecting artistic habits or responding to the need for distinctive brands, these practices can also serve as test devices to probe, validate, and guide the artists’ active participation ...
Giovanni Formilan, David Stark
wiley   +1 more source

moveVis: Animating movement trajectories in synchronicity with static or temporally dynamic environmental data in r

Methods in Ecology and Evolution, Volume 11, Issue 5, Page 664-669, May 2020., 2020
Abstract Visualizing movement data is challenging: While traditional spatial data can be sufficiently displayed as two‐dimensional plots or maps, movement trajectories require the representation of time in a third dimension. To address this, we present moveVis, an r package, which provides tools to animate movement trajectories, overlaying simultaneous
Jakob Schwalb‐Willmann, Ruben Remelgado, Kamran Safi, Martin Wegmann, Laura Graham   +4 more
wiley   +1 more source