A summary of intentional poisoning of Peregrine Falcons in Switzerland during the last decade

Inderwildi, Eva; Müller, Werner; Ayé, Raffael; Sinniger, Martin

doi:10.1515/orhu-2018-0025

Cited by 5 publications

(7 citation statements)

References 4 publications

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“…Toxicological analyses of 17 poisoned endangered Eurasian griffons (Gyps fulvus) in Croatia showed the presence of carbofuran in the livers of 15 birds (88%; Muzinic 2007). Inderwildi et al (2018) reported the presence of carbofuran in 50% of poisoned peregrines in Switzerland. A lower frequency of birds with carbofuran (7% of 28 birds) was found by Molenaar et al (2017) in red kites (Milvus milvus) in England.…”

Section: Discussionmentioning

confidence: 99%

“…Access to the market of legally purchased pesticides may generate illicit trafficking, which is an increasing problem (Ruiz-Suárez et al 2015, Helou et al 2019, Cuenca et al 2020. Noteworthy is the fact that local communities may collect banned pesticides not only for agricultural purposes, but also to combat non-target species such as wild birds or mammalian predators that are considered to be conflict species, including rare species with high conservation priority (Tennakoon et al 2009, Richards 2012, Chiari et al 2017, Inderwildi et al 2018, Pacheco et al 2020.…”

Section: Introductionmentioning

confidence: 99%

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A pesticide banned in the European Union over a decade ago is still present in raptors in Poland

et al. 2020

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Summary The prevalent pesticide carbofuran was banned in the European Union (EU) in 2008; however, the extent of its actual elimination from the environment has been little studied. The presence of this pesticide in the livers of the protected raptors the white-tailed eagle (Haliaeetus albicilla) and the common buzzard (Buteo buteo) was monitored in Poland from 2008 to 2019 using liquid chromatography with tandem mass spectrometry analysis and data from government institutions. Carbofuran residues were detected in the liver samples of the analysed raptors throughout the period studied. In total, carbofuran was detected in the livers of 33% of the eagles and 54% of the buzzards; concentrations were in the ranges of 11–699 and 14–1890 μg kg–1 of dry matter, respectively. Effective measures to eliminate banned pesticides from the market more efficiently are required.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A pesticide banned in the European Union over a decade ago is still present in raptors in Poland

et al. 2020

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“…In Switzerland, in recent years, information has been collated on more than 30 proven or suspected cases of the poisoning of Peregrines typically with baited pigeons (Inderwildi et al . 2018, M. Sinniger pers. comm.).…”

Section: Methodsmentioning

confidence: 99%

Spatio‐temporal variation in post‐recovery dynamics in a large Peregrine Falcon (Falco peregrinus) population in the Jura mountains 2000–2020†

Kéry

Banderet²,

Müller

et al. 2021

Ibis

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After spectacular population crashes in the 1960 and 1970s, Peregrine Falcon Falco peregrinus populations recovered worldwide, and in the 2000s many study populations were back to normal. However, post‐recovery trends have been documented less well. We combined three long‐term population studies covering the entire Jura mountain range (16 304 km2) to examine spatio‐temporal variation in population dynamics during 2000–2020 in 420 known nesting sites in five regions: Ain, Jura and Doubs in France, and Jura Sud and Jura Nord in Switzerland. Every year about 60% of all sites were surveyed at least once, and this proportion increased over time. We used Bayesian occupancy modelling to investigate site persistence and colonization probabilities and correct status and trend estimates for bias due to non‐random site coverage. Based on the average of two models correcting for preferential sampling, we estimated that population size peaked in 2002 (Jura), 2005 (Doubs), 2007 (Ain, Jura Nord) and in 2007 for the Jura as a whole. Thereafter, the population declined significantly in four regions and in the Jura as a whole, with the strongest decline found in the Jura Nord ( –38%, 95% credible interval –34%/–41%) during 2007–2020. Thus, we found considerable spatial heterogeneity in post‐recovery trends and widespread post‐recovery declines. Reasons for the latter may include Eagle Owl Bubo bubo predation, illegal persecution and human disturbance. Our results illustrate how quickly positive population trends may be reversed, such that continuous long‐term monitoring even for species seemingly ‘out of danger’ remains invaluable. Our study also emphasizes the importance of correcting for both coverage bias in general and preferential sampling in particular when assessing population trends in studies where not every territory can be surveyed in all years.

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“…As Peregrine population evolved, pigeon-fanciers ceased breeding high-flyers in some parts of Hungary. In other areas, they still use illegal methods to eliminate falcons attacking their flocks (Inderwildi et al 2018).…”

Section: Threatsmentioning

confidence: 99%

Review of the development of the Peregrine Falcon(Falco peregrinus)population in Hungary between 1997 and 2018

Prommer¹,

Bagyura²

2018

Ornis Hungarica

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Peregrine Falcon (Falco peregrinus) populations recovered globally after a dramatic decline experienced between the 1950s and 1980s. The conservation challenge forced the raptor biologist community to co-operate internationally. As a part of the co-operation, four conferences were organised to identify the problem, coordinate conservation efforts including research and to monitor the recovery process of the species’ populations worldwide. The line of conferences started in Madison (WI, USA) in 1965 and was followed by two conferences in Sacramento (CA, USA) and Piotrowo/Poznań (Poland) in 1985 and in 2007, respectively. The latest conference was organised in 2017, in Budapest, where Peregrine experts discussed the latest research and monitoring results. The event provides a good occasion to review the development of the Peregrine population in Hungary. The species became extinct in Hungary as a breeding species in the mid-1960s due to the intensive use of pesticides (DDT) and it returned only in 1997, when the first successful breeding was recorded. In 2018, 72 active eyries were recorded. The Hungarian population is the edge of the Carpathian Peregrine population and the birds represent mostly the nominate subspecies (F. p. peregrinus), but individuals showing typical phenotype of the Mediterranean subspecies (F. p. brookei) were also observed. The northern race of F. p. calidus also occurs on migration and in winter. The Hungarian population is sedentary. Natal dispersal of females is biased to males, but in case of both sexes most ring recoveries of adult birds occurred within the Pannonian basin. The increasing Peregrine population expanding to the lowland may cause conservation conflict on medium term by competing with the endangered Saker Falcon (Falco cherrug) for the nest sites. The conservation status of the Peregrine Falcon in Hungary is good in general, but threats may emerge on local scale in some regions. No specific conservation measures are taken, research and monitoring focus on population changes and threats posed on and caused by Peregrines.

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A summary of intentional poisoning of Peregrine Falcons in Switzerland during the last decade

Cited by 5 publications

References 4 publications

A pesticide banned in the European Union over a decade ago is still present in raptors in Poland

A pesticide banned in the European Union over a decade ago is still present in raptors in Poland

Spatio‐temporal variation in post‐recovery dynamics in a large Peregrine Falcon (Falco peregrinus) population in the Jura mountains 2000–2020†

Review of the development of the Peregrine Falcon(Falco peregrinus)population in Hungary between 1997 and 2018

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