Satellite Tracking of Migratory and Ranging Behavior of Immature Great White Pelicans

Izhaki, Ido; Shmueli, Marva; Arad, Zeev; Steinberg, Yoav; Crivellì, Alain J.

doi:10.1675/1524-4695(2002)025[0295:stomar]2.0.co;2

Cited by 14 publications

(18 citation statements)

References 14 publications

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“…1992). European populations winter in eastern Africa, possibly in Kenya and/or in Sudan (Izhaki et al 2002). There are only two accepted records from Morocco (Thévenot et al 2003), which supports the theory that the resident African breeders are unlikely to be the source of out-of-range European records.…”

Section: Species-specific Predictionsmentioning

confidence: 90%

“…In autumn, European populations of Great White Pelican undergo long‐distance movements across Turkey and the Middle East into Africa (Crivelli et al . 1991a, Izhaki et al . 2002): pelicans arrive in the Danube Delta late March–April and leave September to early November, whereas African breeders are generally sedentary.…”

Section: Species‐specific Predictionsmentioning

confidence: 99%

“…1992). European populations winter in eastern Africa, possibly in Kenya and/or in Sudan (Izhaki et al. 2002).…”

Section: Species‐specific Predictionsmentioning

confidence: 99%

“…Nevertheless, pelicans are very good flyers (Weimerskirch et al . 2001) and are able to disperse over large areas (Izhaki et al . 2002), so the possibility of natural vagrancy far away from their usual quarters is entirely plausible.…”

mentioning

confidence: 99%

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The origin of out‐of‐range pelicans in Europe: wild bird dispersal or zoo escapes?

Jiguet¹,

Doxa²,

Robert³

2008

Ibis

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We tested whether spatial and annual patterns of occurrence of out‐of‐range Great White Pelecanus onocrotalus, Dalmatian Pelecanus crispus and Pink‐backed Pelicans Pelecanus rufescens recorded in Europe between 1980 and 2004 supported a natural vagrancy theory. Candidate variables tested were those likely to influence dispersal and escape probability (distance to the usual breeding/wintering range, national captive stock), and wild breeding population sizes and their movements (size of breeding colonies, climate conditions on wintering grounds or during dispersal). Spatial vagrancy patterns supported the hypothesis of wild birds dispersing from their normal range, with decreasing national totals with increasing distance to the usual range for the three species. Annual out‐of‐range numbers of Great White Pelican were predicted by breeding colony size and breeding success in Greece, with a further effect of Sahel rainfall during the previous year. Annual numbers of Dalmatian Pelican were related to the North Atlantic Oscillation index and to breeding success in Greece. Finally, annual numbers of Pink‐backed Pelican were predicted by summer Sahel rainfall, which is known to drive dispersal of the species northwards into the sub‐Sahelian steppes during wet summers there. Hence, annual vagrancy patterns in Europe were well predicted for all three species by population size indices, reproductive success and/or climatic components, which presumably influence survival and/or dispersal. We therefore consider that vagrancy patterns were driven by wild birds, whereas escapes – even if potentially numerous – do not create sufficient ‘noise’ to hide these patterns.

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Section: Species-specific Predictionsmentioning

confidence: 90%

Section: Species‐specific Predictionsmentioning

confidence: 99%

“…1992). European populations winter in eastern Africa, possibly in Kenya and/or in Sudan (Izhaki et al. 2002).…”

Section: Species‐specific Predictionsmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

The origin of out‐of‐range pelicans in Europe: wild bird dispersal or zoo escapes?

Jiguet¹,

Doxa²,

Robert³

2008

Ibis

View full text Add to dashboard Cite

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“…Recent advances in satellite telemetry have allowed monitoring of animal movements over expansive areas (Lindberg and Walker 2007;Robinson et al 2009; Hebblewhite and Haydon 2010). Shannon et al (2002) used satellite telemetry to document American White Pelican soaring flight times, and Izhaki et al (2002) used satellite telemetry to describe the migratory and ranging behavior of immature Great White Pelicans (P. onocrotalus). Further advances have led to the incorporation of a Global Positioning System (GPS) into satellite transmitters, allowing for very precise location data and intensive monitoring of animal movements.…”

Section: Winter and Summer Home Ranges Of American White Pelicans (Pementioning

confidence: 99%

Winter and Summer Home Ranges of American White Pelicans (Pelecanus erythrorhynchos) Captured at Loafing Sites in the Southeastern United States

et al. 2016

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Satellite telemetry was used to investigate summer and winter home ranges for resident and migrant American White Pelicans (Pelecanus erythrorhynchos) captured in the southeastern United States between 2002 and 2007. Home range utilization distributions were calculated using 50% and 95% kernel density estimators with the plug-in bandwidth selector. Mean summer home ranges (95%) varied from 177 to 4,710 km 2 and mean winter home ranges (95%) ranged from 185 to 916 km 2. Mean 50% and 95% home ranges of adult American White Pelicans during summer tended to be larger than those during winter, whereas mean 50% and 95% home ranges of immature pelicans during summer tended to be smaller than those during winter. Home ranges for all American White Pelicans encompassed the latitude range of 24°-55° N, including wintering, stop over, and nesting habitat. These data provide baseline movement and home range data for future studies of American White Pelican ecology.

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Understanding sociality and behavior change associated with a nesting event in a captive flock of great white pelicans

2021

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Zoo‐housed pelicans are commonplace, but their breeding record is poor and little research is published on the activity patterns, as potential predictors of nesting, of captive flocks. Existing literature shows that comparative research can provide useful information for husbandry and conservation planning for pelican populations. The opportunity arose to investigate the time‐activity budget and social network of a breeding flock of captive great white pelicans. Three chicks were hatched in June and July 2016 and one in March 2017. Data on state behaviors, space use, and association preferences were collected around these nesting events, from October 2016 to February 2017 and July to October 2017. Results suggest that pre‐nesting periods were associated with heightened flock‐wide vigilance, suggesting that vigilance may be a precursor for courtship or nesting activity. Social network analysis revealed nonrandom associations between birds and a social structure across the flock, in which subadults seemed to associate more with each other than with adult birds. A limited visitor effect was noted; whilst no overall behavior change was apparent with different numbers of visitors, pelicans did widen their enclosure usage with increased visitor presence. These data are relevant to those attempting to breed this pelican, who wish to know more about the daily behavior patterns of this species across the season and physiological state, and who wish to understand pelican social structure, which is useful to the planning and implementation of bird moves or changes to the social environment of the flock. Further extending such research to include uninterrupted observation over a successful breeding event is recommended.

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Satellite Tracking of Migratory and Ranging Behavior of Immature Great White Pelicans

Cited by 14 publications

References 14 publications

The origin of out‐of‐range pelicans in Europe: wild bird dispersal or zoo escapes?

The origin of out‐of‐range pelicans in Europe: wild bird dispersal or zoo escapes?

Winter and Summer Home Ranges of American White Pelicans (Pelecanus erythrorhynchos) Captured at Loafing Sites in the Southeastern United States

Understanding sociality and behavior change associated with a nesting event in a captive flock of great white pelicans

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