Satellite-Satellite Tracking for Estimating Geopotential Coefficients

Author(s):  
C. F. Martin ◽  
T. V. Martin ◽  
David. E. Smith
2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Christian Lydersen ◽  
Jade Vacquié-Garcia ◽  
Mads Peter Heide-Jørgensen ◽  
Nils Øien ◽  
Christophe Guinet ◽  
...  

Abstract Insight into animal movements is essential for understanding habitat use by individuals as well as population processes and species life-history strategies. In this study, we instrumented 25 fin whales with ARGOS satellite-transmitters in Svalbard, Norway, to study their movement patterns and behaviour (Area Restricted Search (ARS), transiting or unknown) during boreal autumn/early winter. Ten of the whales stayed in the tagging area (most northerly location: 81.68°N) for their entire tracking periods (max 45 days). The other 15 whales moved in a south-westerly direction; the longest track ended off the coast of northern Africa (> 5000 km from the tagging location) after 96 days. The whales engaged in ARS behaviour intermittently throughout their southward migrations. During transit phases the whales moved quickly; one individual maintained an average horizontal speed of 9.3 km/h (travelling 223 km per day) for a period of a week. This study documents that: (1) some fin whales might remain at high latitudes during winter; (2) the whales that do migrate probably feed along the way; (3) they can maintain high transiting speed for long periods and; (4) one breeding area for this species is likely located in deep, warm water some 100 km west of Morocco.


Ostrich ◽  
2001 ◽  
Vol 72 (1-2) ◽  
pp. 35-40 ◽  
Author(s):  
B-U. Meyburg ◽  
D.H. Ellis ◽  
C. Meyburg ◽  
J.M. Mendelsohn ◽  
W. Scheller

2005 ◽  
Vol 4 (2) ◽  
pp. 109-115 ◽  
Author(s):  
Hiroyoshi HIGUCHI ◽  
Hau-Jie SHIU ◽  
Hiroshi NAKAMURA ◽  
Akitake UEMATSU ◽  
Kimihiro KUNO ◽  
...  
Keyword(s):  

2004 ◽  
Vol 31 (3) ◽  
pp. 177-180 ◽  
Author(s):  
HENRY P. HUNTINGTON ◽  
ROBERT S. SUYDAM ◽  
DANIEL H. ROSENBERG

The integration or co-application of traditional knowledge and scientific knowledge has been the subject of considerable research and discussion (see Johannes 1981; Johnson 1992; Stevenson 1996; McDonald et al. 1997; Huntington et al. 1999, 2002), with emphasis on various specific topics including environmental management and conservation (see Freeman & Carbyn 1988; Ferguson & Messier 1997; Ford & Martinez 2000; Usher 2000; Albert 2001). In most cases, examples of successful integration compare traditional and scientific observations at similar spatial scales to increase confidence in understanding or to fill gaps that appear from either perspective. We present a different approach to integration, emphasizing complementarity rather than concordance in spatial perspective, using two migratory species as examples.


2005 ◽  
Vol 53 (13) ◽  
pp. 1331-1340 ◽  
Author(s):  
S. Goossens ◽  
P.N.A.M. Visser ◽  
B.A.C. Ambrosius

2021 ◽  
Vol 55 (1) ◽  
Author(s):  
Kate G. Slankard ◽  
Michael D. Patton ◽  
Loren F. Taylor ◽  
James O. Barnard

2008 ◽  
Vol 45 (1) ◽  
pp. 49-54 ◽  
Author(s):  
Alan F. Rees ◽  
Mohammad Jony ◽  
Dimitris Margaritoulis ◽  
Brendan J. Godley

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