Environmental parameters linked to the last migratory stage of barnacle geese en route to their breeding sites

Shariati-Najafabadi, Mitra; Darvishzadeh, Roshanak; Skidmore, Andrew K.; Kölzsch, Andrea; Exo, Klaus-Michael; Nolet, Bart A.; Griffin, Larry; Stahl, Julia; Havinga, Paul J.M.; Meratnia, Nirvana; Toxopeus, A.G.

doi:10.1016/j.anbehav.2016.05.018

Cited by 13 publications

(13 citation statements)

References 54 publications

(67 reference statements)

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“…Our results also reinforce the statement that spring migration in most avian migrants is faster than autumn migration (Ward 2005, Kölzsch et al 2016. Autumn migration towards the wintering areas of tracked Ruddy-headed Geese lasted three times longer than the spring migration.…”

Section: Discussionsupporting

confidence: 88%

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Spatial and temporal variation in the migration of Ruddy-headed Goose in southern South America using satellite tagging

Pedrana

Pütz²,

Bernad

et al. 2020

Bird Conservation International

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Summary Ruddy-headed Goose Chloephaga rubidiceps is the smallest of the five South American sheldgeese and has two separate populations: one sedentary, which resides in the Malvinas/Falkland Islands and one migratory that overwinters mainly in the Pampas region, Argentina and breeds in Southern Patagonia. The Ruddy-headed Goose’s continental population has decreased considerably, and recent estimates indicated that the population size is less than 800 individuals. In Argentina and Chile, this population is categorised as endangered. Understanding migration across vast landscapes is essential for the identification of factors affecting the survival of this endangered population and for the application of effective conservation measures. We aim to provide the first documentation of the complete migration cycle of Ruddy-headed Goose, and to analyse their annual migration in detail, including identification of stop-over, breeding and wintering sites, and to compare migration timing during spring and autumn migration. Adults were captured in the southern Pampas and equipped with solar satellite transmitters in 2015 and 2016. We analysed the influence of season (spring vs autumn migration) on the number and duration of stop-overs, distance travelled and overall migration speed using Generalized Linear Mixed Models. Our results showed that tracked geese used the eastern Patagonian route to reach their breeding grounds and take the same route after breeding. Spring migration was significantly faster than autumn migration, at least based on the number of days spent in their stop-overs. Stop-overs were closer to the final destination, either during spring and autumn migrations, though some of them were not used during subsequent migrations. Our migration cartography for Ruddy-headed Geese, together with the timing and location data, should be used to improve conservation efforts directed at this species and might contribute to the modification of the current status of ‘Least Concern’ under the IUCN criteria.

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Section: Discussionsupporting

confidence: 88%

“…In addition, unfavourable weather conditions can force migratory birds to rest, forage, and seek shelter (Hü bner et al 2010). Therefore, understanding migration timing and the identification of stop-over sites during migration is critical to any species conservation plan (Ruth et al 2005, Shariati-Najafabadi et al 2016.…”

Section: Introductionmentioning

confidence: 99%

Spatial and temporal variation in the migration of Ruddy-headed Goose in southern South America using satellite tagging

Pedrana

Pütz²,

Bernad

et al. 2020

Bird Conservation International

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“…Previous studies showed that the selection of any stopover sites by avian migrants depends on a diversity of environmental predictors, such as changes in seasonal food availability and/or the cost related to predation or disturbance risks (e.g. from farmers and inter-and intraspecific competition) (Chudzínska et al, 2015;Shariati-Najafabadi et al, 2016 ). This would indicate that the selection of stopover sites is not only dependent on the spatio-temporal changes in food availability but is also associated to the costs related to food search, predation and inter-and intraspecific competitions.…”

Section: Discussionmentioning

confidence: 99%

Migration Routes and Stopover Sites of Upland Geese Chloephaga Picta in South America

Pedrana

Pütz²,

Bernad

et al. 2018

Avian Biology Research

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The Upland Goose (Chloephaga picta picta) is a migratory species of South America, which breeds from September to April in Patagonia (Argentina and Chile) and winters from May to September in the southern Pampas (Argentina). Despite some protection in both countries, this species is still persecuted and large numbers are killed by unregulated hunting. Therefore, precise knowledge of their migratory routes is vital to ensure protection of necessary resources and sites throughout the year. We deployed five miniaturised satellite transmitters on adult Upland Geese to gather data about breeding, wintering and stopover sites all along their migratory routes. We aimed to identify important areas in the wintering and breeding grounds through kernel density analyses, and to match these sites along the migration routes with protected areas. Tracked birds exhibited different migration routes and reached different breeding grounds. Two individuals travelled from their wintering grounds in Buenos Aires province to their presumed breeding areas in southern Patagonia. However, we also found different stopover sites from another bird in northern Patagonia, from the ones postulated before, and evidence that some Upland Geese are not large-scale migrants. Our results highlight a considerable amount of plasticity in Upland Geese migratory behaviour. This study represents an essential first step towards identifying important stopover sites along the Upland Geese flyways and it also highlights the lack of protected habitats along most of their migration routes.

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“…Barnacle geese arrive on their breeding grounds in late May and initiate nests within a few days after arrival (Drent et al, 2007). The migration timing of geese is very much linked to climate, as the onset of spring and the phenology of food plants determine food intake rates at wintering and staging sites Prop, Black, Shimmings, & Owen, 1998) and influence departure decisions during migration (Duriez et al, 2009;Shariati-Najafabadi et al, 2016;van der Graaf et al, 2006;van Wijk et al, 2012).…”

Section: Study Systemmentioning

confidence: 99%

Potential for an Arctic‐breeding migratory bird to adjust spring migration phenology to Arctic amplification

Lameris

Scholten

Bauer

et al. 2017

Global Change Biology

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Arctic amplification, the accelerated climate warming in the polar regions, is causing a more rapid advancement of the onset of spring in the Arctic than in temperate regions.Consequently, the arrival of many migratory birds in the Arctic is thought to become increasingly mismatched with the onset of local spring, consequently reducing individual fitness and potentially even population levels. We used a dynamic state variable model to study whether Arctic long-distance migrants can advance their migratory schedules under climate warming scenarios which include Arctic amplification, and whether such an advancement is constrained by fuel accumulation or the ability to anticipate climatic changes. Our model predicts that barnacle geese Branta leucopsis suffer from considerably reduced reproductive success with increasing Arctic amplification through mistimed arrival, when they cannot anticipate a more rapid progress of Arctic spring from their wintering grounds. When geese are able to anticipate a more rapid progress of Arctic spring, they are predicted to advance their spring arrival under Arctic amplification up to 44 days without any reproductive costs in terms of optimal condition or timing of breeding. Negative effects of mistimed arrival on reproduction are predicted to be somewhat mitigated by increasing summer length under warming in the Arctic, as late arriving geese can still breed successfully. We conclude that adaptation to Arctic amplification may rather be constrained by the (un)predictability of changes in the Arctic spring than by the time available for fuel accumulation. Social migrants like geese tend to have a high behavioural plasticity regarding stopover site choice and migration schedule, giving them the potential to adapt to future climate changes on their flyway. K E Y W O R D SBranta leucopsis, climate change, dynamic state variable model, global warming, mistimed arrival

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Environmental parameters linked to the last migratory stage of barnacle geese en route to their breeding sites

Cited by 13 publications

References 54 publications

Spatial and temporal variation in the migration of Ruddy-headed Goose in southern South America using satellite tagging

Spatial and temporal variation in the migration of Ruddy-headed Goose in southern South America using satellite tagging

Migration Routes and Stopover Sites of Upland Geese Chloephaga Picta in South America

Potential for an Arctic‐breeding migratory bird to adjust spring migration phenology to Arctic amplification

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