First finding of Tyzzeria parvula (Kotlán, 1933) Klimeš, 1963 (Protozoa: Coccidiida) in Barnacle Geese (Branta leucopsis Bechstein, 1803) on Spitsbergen

2007 ◽  
Vol 15 (2) ◽  
pp. 214-214
Author(s):  
O.V. Dolnik ◽  
M.J.J.E. Loonen

This is the first finding of Tyzzeria sp. in Barnacle Geese, as well as the first documentation of Tyzzeria parasites on Spitsbergen. Since goslings were highly infected, it can be concluded that transmission of Tyzzeria parasites takes place on the arctic breeding grounds.

2019 ◽  
Vol 53 (9) ◽  
pp. 5427-5435 ◽  
Author(s):  
Daniel J. Hitchcock ◽  
Tom Andersen ◽  
Øystein Varpe ◽  
Maarten J. J. E. Loonen ◽  
Nicholas A. Warner ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Teja Curk ◽  
Ivan Pokrovsky ◽  
Nicolas Lecomte ◽  
Tomas Aarvak ◽  
David F. Brinker ◽  
...  

Abstract Migratory species display a range of migration patterns between irruptive (facultative) to regular (obligate), as a response to different predictability of resources. In the Arctic, snow directly influences resource availability. The causes and consequences of different migration patterns of migratory species as a response to the snow conditions remains however unexplored. Birds migrating to the Arctic are expected to follow the spring snowmelt to optimise their arrival time and select for snow-free areas to maximise prey encounter en-route. Based on large-scale movement data, we compared the migration patterns of three top predator species of the tundra in relation to the spatio-temporal dynamics of snow cover. The snowy owl, an irruptive migrant, the rough-legged buzzard, with an intermediary migration pattern, and the peregrine falcon as a regular migrant, all followed, as expected, the spring snowmelt during their migrations. However, the owl stayed ahead, the buzzard stayed on, and the falcon stayed behind the spatio-temporal peak in snowmelt. Although none of the species avoided snow-covered areas, they presumably used snow presence as a cue to time their arrival at their breeding grounds. We show the importance of environmental cues for species with different migration patterns.


2016 ◽  
Vol 154 (1) ◽  
pp. 65
Author(s):  
C.A.M. Sandström ◽  
S. Vreman ◽  
A. Gröne ◽  
M.J.J.E. Loonen

2005 ◽  
Vol 147 (3) ◽  
pp. 479-484 ◽  
Author(s):  
Alexandra J. van der Graaf ◽  
Pieter Coehoorn ◽  
Julia Stahl

2003 ◽  
Vol 259 (3) ◽  
pp. 301-308 ◽  
Author(s):  
C. Carbone ◽  
W. A. Thompson ◽  
L. Zadorina ◽  
J. M. Rowcliffe

1998 ◽  
Vol 17 (1) ◽  
pp. 1-14 ◽  
Author(s):  
INGER GREVE ALSOS ◽  
ARVE ELVEBAKK ◽  
GEIR WING GABRIELSEN

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