Assessment of the Genetic Potential of the Peregrine Falcon (Falco peregrinus peregrinus) Population Used in the Reintroduction Program in Poland

Puchała, Karol; Nowak-Życzyńska, Zuzanna; Sielicki, Sławomir; Olech, Wanda

doi:10.3390/genes12050666

Cited by 3 publications

(2 citation statements)

References 29 publications

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“…Compared to our previous study, which included both breeding and wild falcons [ 20 ], the number of observed alleles for two markers was lower (NVHfp107, NVHfp92_1) and for three was higher (NVHfp5, NVHfp54, NVHfp82_2). The effective number of alleles was lower for two markers (NVHfp13, NVHfp5) and higher for the other seven.…”

Section: Discussioncontrasting

confidence: 76%

“…These markers were characterized by the presence of high locus polymorphism, primer melting points and product length, which allowed the reactions to be carried out as one multiplex PCR (polymerase chain reaction) procedure. Reactions were performed as described by Puchała et al [ 20 ]. Marker NVHfp79-4 was excluded from analysis due to null heterozygosity and low variability.…”

Section: Methodsmentioning

confidence: 99%

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Evaluation of the Impact of the Peregrine Falcon (Falco peregrinus peregrinus) Reintroduction Process on Captive-Bred Population

Puchała

Nowak-Życzyńska

Sielicki³

et al. 2022

Genes

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The main objective of this study was to determine the impact of increased demand for peregrine falcons via breeding (mainly Polish, Czech, German and Slovak) on the genetic structure of the birds. In the analysis, 374 specimens from six countries were sampled in 2008–2019 (omitting 2009), and all the birds analyzed were released into the wild as part of the Polish reintroduction program. The assessment of genetic variation was based on a well-known panel of 10 microsatellite markers described for the species. We calculated a fixation index for the samples from each year, and based on this, we determined the level of inbreeding. We also performed an analysis using the Bayesian cluster method, assuming that 1–19 hypothetical populations would define the division that best fit the samples. The most probable division was into two groups; in the first group, the samples from individuals delivered in 2013 were most often segregated; moreover, in this year, a jump in inbreeding, expressed by the fixation index, was observed.

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Section: Discussioncontrasting

confidence: 76%

Section: Methodsmentioning

confidence: 99%

Evaluation of the Impact of the Peregrine Falcon (Falco peregrinus peregrinus) Reintroduction Process on Captive-Bred Population

Puchała

Nowak-Życzyńska

Sielicki³

et al. 2022

Genes

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Implications of captive breeding for the reintroduction of the Saker falcon (Falco cherrug) in Bulgaria

Petrov¹,

Andonova²,

Gancheva³

et al. 2021

AST

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Abstract. The Saker falcon (Falco cherrug) is a globally endangered species recovered in 2018 in Bulgaria. The only known active pair currently breeding in the wild in the country is made up of captive-bred and released birds, part of the first reintroduction programme for the species in Bulgaria and globally. As part of the project, sourced Saker falcons of known European origin are bred ex situ, the juveniles are parent-reared and released in the wild by means of the hacking method. The aim of this study was to evaluate the success and effectiveness of the captive breeding and rearing methods. The objective of the study was to investigate, compare and assess the results from fertilization, hatching, survival and hacking of captive bred Saker falcons registered over a 10-year period (2011-2021) at the Wildlife Rehabilitation and Breeding Centre (WRBC) Green Balkans, with a more detailed comparison of the breeding activities carried out in 2020 and 2021 (as the reintroduction programme was restarted in 2020). The results show more than threefold increase in output of laid eggs with the employment of the double clutching method in 2020 and 2021, and an overall 65% release rate of the hatched in the WRBC Saker falcons, for the investigated period.

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Diets for captive breeding and hacking of saker falcons (Falco cherrug) in Bulgaria

Petrov¹,

Andonova²,

Yarkov³

et al. 2022

AST

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Abstract. With saker falcon populations on the mend globally, and in Bulgaria, special caution is taken to ensure the best possible care of the birds in their breeding programmes. Diets play a particularly important role as they affect the health of not only the breeding pairs, but also the young birds. With the ultimate goal for the captive-bred sakers being to reestablish viable saker falcon populations, releasing healthy falcons is paramount. As part of the ongoing saker falcon reintroduction efforts in Bulgaria, special emphasis was placed on well-rounded diets carefully tailored to the species, and the accompanying proper sanitation procedures. Outlined are best practices concerning the variety of dietary regimes for saker falcons in captivity and for released falcons based on their biology and behaviour. In captivity the meals were different for non-breeding birds, breeding birds, for nesting birds, and for birds with chicks in the nest. The hacked juvenile saker falcons had a change in diet every two weeks – starting with food similar to the one in the breeding facilities, to the more natural for the species meals. The different techniques aimed at replicating wild conditions resulted in a natural breeding behaviour for the saker falcons kept in captivity, and successful adaptation for the released juveniles. The meal preparation methods kept the risk of food-transmitted diseases to a minimum.

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Assessment of the Genetic Potential of the Peregrine Falcon (Falco peregrinus peregrinus) Population Used in the Reintroduction Program in Poland

Cited by 3 publications

References 29 publications

Evaluation of the Impact of the Peregrine Falcon (Falco peregrinus peregrinus) Reintroduction Process on Captive-Bred Population

Evaluation of the Impact of the Peregrine Falcon (Falco peregrinus peregrinus) Reintroduction Process on Captive-Bred Population

Implications of captive breeding for the reintroduction of the Saker falcon (Falco cherrug) in Bulgaria

Diets for captive breeding and hacking of saker falcons (Falco cherrug) in Bulgaria

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