scholarly journals Use of satellite telemetry data, GIS, and HTML to create an interactive display of caribou movements

Rangifer ◽  
2003 ◽  
Vol 23 (5) ◽  
pp. 101
Author(s):  
Alexander K. Prichard ◽  
Geoffry M. Carroll ◽  
John C. George ◽  
Stephen M. Murphy ◽  
Mike D. Smith ◽  
...  
Keyword(s):  
General Public ◽  
Annual Variation ◽  
Satellite Telemetry ◽  
Telemetry Data ◽  
Daily Movement ◽  
Movement Rates ◽  
Interactive Display ◽  
Wintering Areas

The use of animation clearly reveals the large annual variation in wintering areas and large differences in daily movement rates for this herd. This interactive display can be adapted for school groups, subsistence hunters, the general public, or scientists.

scholarly journals Regional and age-dependent differences in the effect of wind on the migratory routes of Eleonora’s falcon

2015 ◽  
Vol 61 (3) ◽  
pp. 428-434 ◽  
Author(s):  
Ugo Mellone ◽  
Rubén Limiñana ◽  
Pascual López-López ◽  
Vicente Urios
Keyword(s):  
Satellite Telemetry ◽  
Daily Movement ◽  
Movement Rates ◽  
Equatorial Africa ◽  
Ecological Barriers ◽  
Age Dependent ◽  
Migratory Routes ◽  
Wintering Area ◽  
Orientation Mechanism ◽  
Eleonora’S Falcon

Abstract During migration, birds can show different responses to wind in relation to distance to the goal, experience, ecological barriers and visibility of landmarks. We analysed the effect of wind (tailwinds and crosswinds) on daily movement rates (forward and perpendicular) of Eleonora’s falcons using ARGOS satellite telemetry, during their trans-continental autumn migration to Madagascar, in relation to the different crossed regions and individuals’ age class. Our results showed that the effect of wind on daily movement rates was not uniform, being stronger in the farthest region from the migration goal, the Sahara desert, with adults being more affected than juveniles in this region. In the Sahel, the results were more conflicting, perhaps because daily movements were more shaped by the distribution of food resources. In Equatorial Africa, daily movement rates were mainly affected by crosswinds. Still, it remains unclear which orientation mechanism allows Eleonora’s falcons to reach such a narrow wintering area compensating also for wind displacement.

scholarly journals Seasonal movements of caribou in arctic Alaska as determined by satellite

1989 ◽  
Vol 67 (3) ◽  
pp. 644-650 ◽  
Author(s):  
S. G. Fancy ◽  
L. F. Pank ◽  
K. R. Whitten ◽  
W. L. Regelin
Keyword(s):  
Adult Female ◽  
Rangifer Tarandus ◽  
Satellite Telemetry ◽  
Activity Data ◽  
Seasonal Movements ◽  
Terrestrial Mammal ◽  
Daily Movement ◽  
Movement Rates ◽  
Arctic Alaska

Between 1985 and 1987, 49 283 locations and 79 101 sets of activity data were obtained for 34 adult female caribou (Rangifer tarandus granti) of the Porcupine and Central Arctic herds using satellite telemetry. Daily movement rates of female caribou from the two herds, which differ greatly in size and separation of seasonal ranges, were similar except during the spring and fall migration periods. Movement rates in July exceeded those during migration in both herds. The minimum annual distances travelled by caribou cows, ranging to 5055 km, were the longest movements documented for any terrestrial mammal.

Range use and movement rates of woodland caribou in Saskatchewan

2001 ◽  
Vol 79 (11) ◽  
pp. 1933-1940 ◽  
Author(s):  
W James Rettie ◽  
François Messier
Keyword(s):  
Predator Avoidance ◽  
Site Fidelity ◽  
Rangifer Tarandus ◽  
Satellite Telemetry ◽  
Woodland Caribou ◽  
Telemetry Data ◽  
Movement Rates ◽  
Range Use ◽  
Seasonal Movement ◽  
Calf Mortality

We employed satellite-telemetry data to examine seasonal movement rates, annual- and seasonal-range sizes, and season-to-season range fidelity of female woodland caribou (Rangifer tarandus caribou) from five populations in the boreal forest of Saskatchewan. The populations studied are limited by predation, and we investigated whether female caribou exhibited movement and range use consistent with predator avoidance. Additionally, we document an animal-centred technique for assessing site fidelity on the basis of individual range use throughout a year. Females accompanied by calves had lower movement rates and smaller seasonal ranges than females without calves. Movement rates among female caribou tended to decline between the rut and the postcalving and summer seasons. Trends indicated that seasonal ranges were larger prior to calving than during the postcalving and summer seasons. We interpreted the range sizes and movement rates observed as being consistent with predator avoidance in nonmigratory caribou populations. Despite these results and high rates of calf mortality in the area, we did not find interannual fidelity to calving sites.

scholarly journals Extensive daily movement rates measured in territorial arctic foxes

2021 ◽  
Author(s):  
Marie‐Pier Poulin ◽  
Jeanne Clermont ◽  
Dominique Berteaux
Keyword(s):  
Daily Movement ◽  
Movement Rates ◽  
Arctic Foxes

scholarly journals Winter fidelity, movements, and energy expenditure of Midcontinent Greater White-fronted Geese

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Jay A. VonBank ◽  
Mitch D. Weegman ◽  
Paul T. Link ◽  
Stephanie A. Cunningham ◽  
Kevin J. Kraai ◽  
...  
Keyword(s):  
Energy Expenditure ◽  
Time Allocation ◽  
Large Scale ◽  
Animal Movement ◽  
Transition Probabilities ◽  
Winter Period ◽  
Daily Movement ◽  
Regional Energy ◽  
Wintering Areas ◽  
Wintering Distribution

Abstract Background Animal movement patterns are the result of both environmental and physiological effects, and the rates of movement and energy expenditure of given movement strategies are influenced by the physical environment an animal inhabits. Greater white-fronted geese in North America winter in ecologically distinct regions and have undergone a large-scale shift in wintering distribution over the past 20 years. White-fronts continue to winter in historical wintering areas in addition to contemporary areas, but the rates of movement among regions, and energetic consequences of those decisions, are unknown. Additionally, linkages between wintering and breeding regions are generally unknown, and may influence within-winter movement rates. Methods We used Global Positioning System and acceleration data from 97 white-fronts during two winters to elucidate movement characteristics, model regional transition probabilities using a multistate model in a Bayesian framework, estimate regional energy expenditure, and determine behavior time-allocation influences on energy expenditure using overall dynamic body acceleration and linear mixed-effects models. We assess the linkages between wintering and breeding regions by evaluating the winter distributions for each breeding region. Results White-fronts exhibited greater daily movement early in the winter period, and decreased movements as winter progressed. Transition probabilities were greatest towards contemporary winter regions and away from historical wintering regions. Energy expenditure was up to 55% greater, and white-fronts spent more time feeding and flying, in contemporary wintering regions compared to historical regions. White-fronts subsequently summered across their entire previously known breeding distribution, indicating substantial mixing of individuals of varying breeding provenance during winter. Conclusions White-fronts revealed extreme plasticity in their wintering strategy, including high immigration probability to contemporary wintering regions, high emigration from historical wintering regions, and high regional fidelity to western regions, but frequent movements among eastern regions. Given that movements of white-fronts trended toward contemporary wintering regions, we anticipate that a wintering distribution shift eastward will continue. Unexpectedly, greater energy expenditure in contemporary wintering regions revealed variable energetic consequences of choice in wintering region and shifting distribution. Because geese spent more time feeding in contemporary regions than historical regions, increased energy expenditure is likely balanced by increased energy acquisition in contemporary wintering areas.

Modelling spatial patterns in harbour porpoise satellite telemetry data using maximum entropy

Ecography ◽  
2010 ◽  
Vol 33 (4) ◽  
pp. 698-708 ◽  
Author(s):  
Susi M. C. Edrén ◽  
Mary S. Wisz ◽  
Jonas Teilmann ◽  
Rune Dietz ◽  
Johan Söderkvist
Keyword(s):  
Maximum Entropy ◽  
Spatial Patterns ◽  
Satellite Telemetry ◽  
Harbour Porpoise ◽  
Telemetry Data

scholarly journals Movements of the Eastern Ribbonsnake (Thamnophis sauritus) in Nova Scotia

2016 ◽  
Vol 129 (4) ◽  
pp. 379
Author(s):  
T. L. Imlay ◽  
J. Saroli ◽  
T. B. Herman ◽  
S. W. Mockford
Keyword(s):  
Nova Scotia ◽  
Annual Variation ◽  
Prey Availability ◽  
Home Range Size ◽  
Water Levels ◽  
Suitable Habitat ◽  
Home Ranges ◽  
Daily Movement ◽  
The Status ◽  
Best Fit

The disjunct Eastern Ribbonsnake (Thamnophis sauritus) population in southwest Nova Scotia is listed as “threatened” by the committee on the Status of Endangered Wildlife in Canada. A study of the movements of the species at two lakeshore locations known to support a high density of Eastern Ribbonsnakes was undertaken in 2007 and 2008. Average seasonal movements at both sites ranged from 17 m to 84 m for juvenile snakes and 21 m to 130 m for adults; one neonate was recaptured during the study after travelling 32 m. The maximum distance travelled by an individual snake was 391 m in one season. The best-fit model to explain differences in daily movement patterns included year (P = 0.041), indicating that there is annual variation in the movements of this species. Low recapture rates precluded accurate estimates of home-range size, which varied roughly from 0.16 ha to 0.78 ha. Both movements and home ranges were larger than previously documented in Nova Scotia, but maximum distances travelled were consistent with a previous study in Michigan. Most documented movements were along the lakeshore within contiguous, suitable habitat. More work is needed to understand the frequency of large movements and triggers that initiate movements, e.g., changes in water levels, habitat suitability, or prey availability.

Inconspicuous, recovering, or northward shift: status and management of the white shark (Carcharodon carcharias) in Atlantic Canada

2020 ◽  
Vol 77 (10) ◽  
pp. 1666-1677
Author(s):  
G. Bastien ◽  
A. Barkley ◽  
J. Chappus ◽  
V. Heath ◽  
S. Popov ◽  
...  
Keyword(s):  
Action Plan ◽  
Satellite Telemetry ◽  
White Shark ◽  
Conservation Priorities ◽  
Atlantic Canada ◽  
Telemetry Data ◽  
Carcharodon Carcharias ◽  
Proactive Management ◽  
High Site ◽  
Research Incentives

Although white sharks (Carcharodon carcharias) have been considered rare in Atlantic Canada waters, recent sighting records indicate a potentially increasing presence. We combine historical to present sighting data with satellite telemetry tracks of large juvenile and adult white sharks tagged in US (n = 9) and Atlantic Canada waters (n = 17) to show seasonal white shark presence and distribution in Atlantic Canada, returns by individuals over multiple years, and high site fidelity to the region. Telemetry data indicate that white sharks are a more common and consistent occurrence in Canadian waters than previously thought, presenting two potential scenarios: (i) tagging technology is revealing white shark presence that was historically cryptic and (or) (ii) a northward range expansion of white sharks in the Northwest Atlantic, potentially due to climate change, population recovery, and (or) increasing pinniped prey. Given combined sighting and telemetry data indicate a current need for proactive management of white sharks in Atlantic Canada waters, we propose the basis for a management action plan, addressing conservation priorities, management goals, and research incentives while considering the potential for human–shark interactions.

scholarly journals Study on the Satellite Telemetry Data Classification Based on Self-Learning

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 2656-2669 ◽  
Author(s):  
Peng Wan ◽  
Yafeng Zhan ◽  
Weiwei Jiang
Keyword(s):  
Satellite Telemetry ◽  
Data Classification ◽  
Telemetry Data ◽  
Self Learning
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