Dispersal and migration of a specialist waterbird: where do Eurasian Spoonbills (Platalea leucorodia) come to Hungary from?

Pigniczki, Csaba

doi:10.1515/orhu-2017-0001

Cited by 4 publications

(12 citation statements)

References 17 publications

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“…The lower apparent survival in Φ 1 of long-distance migrants may be partially driven by a higher probability of permanent emigration of Camargue spoonbills to other breeding sites (Lebreton et al 1992 ; Cilimburg et al 2002 ; Lindberg et al 2007 ). Nevertheless, despite considerable observation efforts along the migratory flyways and in other European breeding sites (Lok et al 2013a ; Pigniczki 2017 ), there are few records of Camargue spoonbills ( N = 38) resighted along migratory routes to, or in, other breeding sites (Table 2 ). If all those 38 cases correspond to spoonbills that permanently emigrated, EAF LD migrants had in fact a 4–10% higher probability of permanent emigration compared to other migration strategies.…”

Section: Discussionmentioning

confidence: 99%

Relationship between wintering site and survival in a migratory waterbird using different migration routes

Ferreira,

Champagnon,

Alves

et al. 2024

Oecologia

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When wintering at different sites, individuals from the same breeding population can experience different conditions, with costs and benefits that may have implications throughout their lifetime. Using a dataset from a longitudinal study on Eurasian Spoonbills from southern France, we explored whether survival rate varied among individuals using different wintering sites. In the last 13 years, more than 3000 spoonbills have been ringed as chicks in Camargue. These birds winter in five main regions that vary in both migratory flyway (East Atlantic vs. Central European) and migration distance (long-distance vs. short-distance vs. resident). We applied Cormack–Jolly–Seber models and found evidence for apparent survival to correlate with migration distance, but not with flyway. During the interval between the first winter sighting and the next breeding period, long-distance migrants had the lowest survival, independently of the flyway taken. Additionally, as they age, spoonbills seem to better cope with migratory challenges and wintering conditions as no differences in apparent survival among wintering strategies were detected during subsequent years. As dispersal to other breeding colonies was rarely observed, the lower apparent survival during this period is likely to be partly driven by lower true survival. This supports the potential role of crossing of natural barriers and degradation of wintering sites in causing higher mortality rates as recorded for a variety of long-distance migrants. Our work confirms variation in demographic parameters across winter distribution ranges and reinforces the importance of longitudinal studies to better understand the complex demographics of migratory species.

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Section: Discussionmentioning

confidence: 99%

Relationship between wintering site and survival in a migratory waterbird using different migration routes

Ferreira,

Champagnon,

Alves

et al. 2024

Oecologia

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“…This work highlights the need to further protect and restore natural intertidal wetlands but also to identify and manage anthropogenic habitats important to spoonbills. The fact that anthropogenic habitats were used by spoonbills, which is considered a specialist species (Swennen and Yu 2005, Pigniczki 2017), highlights their opportunistic behaviour on habitat selection and may indicate that these habitats can also be favourable to other waterbird species with similar ecology.…”

Section: Discussionmentioning

confidence: 99%

Habitat selection and ontogeny of habitat use by juvenile Eurasian Spoonbill Platalea leucorodia revealed by GPS tracking

Rodrigues

Araújo

Silva

et al. 2022

Bird Conservation International

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Summary Despite the widely recognized value of wetlands in providing vital ecosystem services, these are presently being degraded and ultimately destroyed, leading to a decrease in the biodiversity associated with these areas. Some species inextricably linked to wetlands, however, have been increasing and (re)colonizing areas across their range; a notable example being the Eurasian Spoonbill Platalea leucorodia. In this study we aimed to identify the most important habitats for juvenile spoonbills fledging from a traditional colony in Portugal, located in Ria Formosa, during the period of their life with the lowest survival rates: the first months after leaving the colony. We deployed 16 GPS/GSM tags on juveniles captured in different years (2016 to 2020) and tracked them during post-fledging dispersal and first winter (average 166.4 ± 29.2 SE days). Using Corine Land Cover data, we were able to identify which habitats were most important. Several habitats were used in variable proportions by individuals originating from the same colony, but there was a general trend towards using fewer habitats along the first months of life. Intertidal wetlands were the most used habitat, but anthropogenic habitats such as Wastewater Treatment Plants, saltpans and rice fields were identified as alternative habitats for young spoonbills, and may had contributed to the recent expansion of this species in Portugal.

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“…Based on ring recoveries and colour-ring readings, Tunisia is the most important North African wintering area for the Pannonian population (Müller 1984, Smart et al 2007, Triplet et al 2008, Pigniczki 2009, 2010, 2015, 2017b, Kralj et al 2012, Stanković 2018. The wintering population in Tunisia was 4,033 individuals during the waterbird census in 2008 (Azafzaf et al 2015) and counted between 1,953 and 3,221 individuals during 2016-2018 (Wetlands International 2021).…”

Section: The Role Of North Africa In the Winteringmentioning

confidence: 99%

“…The wintering population in Tunisia was 4,033 individuals during the waterbird census in 2008 (Azafzaf et al 2015) and counted between 1,953 and 3,221 individuals during 2016-2018 (Wetlands International 2021). Not only the Pannonian Spoonbill population winters in Tunisia but a sizeable part of the Czech, Italian, and the Camargue population as well, and a few individuals from the Danube Delta (Romania), Greece, and the Netherlands (Azafzaf et al 2006, Smart et al 2007, Cepak 2008, Volponi et al 2008, Lok et al 2011, Blanchon et al 2017, Pigniczki 2017b, Kiss et al 2019. Spoonbills find perfect foraging possibilities in the tidal area of the Gulf of Gabes, where the tidal range of up to 2 m is unique for the Mediterranean Sea (Smart et al 2007, Hamza et al 2016).…”

Section: The Role Of North Africa In the Winteringmentioning

confidence: 99%

“…Two Spoonbills from the Pannonian population (one from Croatia and one from Serbia) were found dead in Niger (Kralj et al 2012). Crossing the Sahara is a risky journey: two ringed specimens from the Pannonian population were found dead in the Algerian Sahara (Müller 1984, Pigniczki 2017b. Besides the Carpathian Basin population, Spoonbills that were marked in Italy also migrated through the Sahara: two were found in Mali and one in Nigeria (Volponi et al 2008).…”

Section: The Role Of the Sahel In The Winteringmentioning

confidence: 99%

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Winter distribution and migratory strategies of Eurasian Spoonbills (Platalea leucorodia) from the Pannonian breeding population: are they long-distance migrants?

Pigniczki

2022

Acta Zool. Acad. Sci. Hung.

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In this paper, the wintering characteristics of the Eurasian Spoonbills (Platalea leucorodia) breeding in the Carpathian Basin (Pannonian population) were analysed. The data of 305 wintering Spoonbills marked with colour-rings in Hungary was used. A significant part, 80% of the Spoonbills, wintered in Africa, while 20% spent the winter in Europe and only two birds in the Asian part of western Turkey. The most important wintering sites were in the central part of North Africa (in Algeria, Libya, but mainly Tunisia) and Italy. The tidal area in the Gulf of Gabes in Tunisia was the most important area where a significant proportion, 65% of all wintering Spoonbills, spent the winter. This study provided new evidence of Spoonbills occurring in Saharan wetlands (Chott Tindla in Algeria) in winter. 2% of the resighted Spoonbills were reported from the wetlands of the Sahel in Sudan, Nigeria, Niger, Mali, Mauritania, and Senegal. European winterers were mainly found in Italy and, to a lesser extent, in the Balkans and the Carpathian Basin. The mean distance between the natal colonies and the wintering areas was 1,535 km. Spoonbills migrated in a south-southwestern direction (mean: 213°) to reach their wintering sites. In the Hungarian population, most specimens (94%) were short-distance migrants (wintered north of 22°N), 2% were long-distance migrants, and 4% were residents. However, the proportions of the residents and short-distance migrants are supposed to be overestimated and the proportion of the long-distance migrants is likely to be underestimated due to the lack of observation effort in sub-Saharan Africa. However, based on the winter census data and the proportion of ringed individuals of Hungarian origin in the wintering flocks, I estimated that the lack of observation effort would only slightly modify the result. There were two shifts in migratory strategies on an individual level: a resident Spoonbill became a short-distance migrant, and a short-distance migrant became a long-distance migrant by a following winter. While most of the East Atlantic Spoonbills are long-distance migrants, the results of this study indicate that most birds in the Pannonian population are likely to be rather short-distance migrants. The results of the GPS tracking also confirm that most Pannonian Spoonbills are short-distance migrants and support the main conclusion of this paper.

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Dispersal and migration of a specialist waterbird: where do Eurasian Spoonbills (Platalea leucorodia) come to Hungary from?

Cited by 4 publications

References 17 publications

Relationship between wintering site and survival in a migratory waterbird using different migration routes

Relationship between wintering site and survival in a migratory waterbird using different migration routes

Habitat selection and ontogeny of habitat use by juvenile Eurasian Spoonbill Platalea leucorodia revealed by GPS tracking

Winter distribution and migratory strategies of Eurasian Spoonbills (Platalea leucorodia) from the Pannonian breeding population: are they long-distance migrants?

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