Choice of Nest Platform Material for the White Stork (Ciconia Ciconia)

Mužinić, Jasmina; Cvitan, Ivan

doi:10.1092/dxhk-6c4y-235p-7vhb

Cited by 6 publications

(9 citation statements)

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“…Juveniles of White Storks, particularly the ones just starting to fly, are obviously more likely to collide with electricity lines when nests are located on operational OEL poles. Furthermore, installation of nesting platforms on OEL poles is known to reduce the risk of collisions (Muzinic 1999;Muzinic and Cvitan 2001;Dolata 2006). However, the breeding success analyzed in our study could not be affected by different rates of electrocution of young birds as the count was done of 6-7-week-old fledglings still unable to fly.…”

Section: Discussionmentioning

confidence: 99%

“…On the other hand, our data prove that nesting platforms installed on poles of operating OEL as a measure against electricity supply disturbance are also efficient at mitigating EMF impact on White Storks. What is more, these platforms reduce the probability of bird collision with power lines (Muzinic 1999;Muzinic and Cvitan 2001;Dolata 2006).…”

Section: Discussionmentioning

confidence: 99%

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Possible effects of electromagnetic field on White StorksCiconia ciconiabreeding on low-voltage electricity line poles

Vaitkuvienė

Dagys

2014

Zoology and Ecology

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In this study, we analyzed the breeding success of the White Stork (Ciconia ciconia) in nests built on poles of lowvoltage overhead electricity lines (OEL). Many previously conducted studies have shown the negative impact of the electromagnetic field (EMF) on bird breeding success. Over the past few decades, in many European countries, White Storks have been increasingly observed building their nests on poles of OEL, with electricity lines functioning as a nest support. This means that there is a growing tendency for their nests to be located in zones of increased electromagnetic pollution. Our study results showed that the most significant factors influencing the breeding success of White Storks nesting on poles of OEL are the nest-site, hydrological network density, and distance to arable land. The analysis of White Stork breeding success in the nests built on poles of operating and non-operating OEL revealed a significant difference. Breeding success in the nests having direct contact with electricity lines was found to be the lowest. Our study results suggest that even low-voltage electricity current-generated EMF can produce a significant negative effect on the breeding success of birds nesting directly on electricity lines.Išanalizuotas baltųjų gandrų Ciconia ciconia perėjimo sėkmingumas ant žemos įtampos elektros oro linijų sukrautuose lizduose. Daugelyje ankstesnių tyrimų buvo nustatytas neigiamas elektromagnetinio lauko poveikis paukščių perėjimo sėkmingumui. Europos šalyse per pastaruosius kelis dešimtmečius baltieji gandrai lizdus vis dažniau krauna ant elektros oro linijų atramų. Elektros laidai tampa atrama lizdams, jie sukraunami didesnio elektromagnetinio užterštumo zonoje. Tyrimo rezultatai parodė, kad gandrams perint ant elektros oro linijų atramų, perėjimo sėkmingumą įtakojantys svarbiausi veiksniai yra lizdo vieta, hidrologinio tinklo tankumas ir atstumas iki dirbamos žemės. Lizduose, sukrautuose ant eksploatuojamų ir nebeeksploatuojamų elektros oro linijų atramų, perėjimo sėkmingumas reikšmingai skyrėsi. Mažiausias perėjimo sėkmingumas buvo lizduose, besiliečiančiuose su elektros laidais. Šio tyrimo rezultatai leidžia teigti, kad net ir žemos įtampos (0,4 kV) sukuriamas elektromagnetinis laukas gali turėti reikšmingą neigiamą poveikį tiesiai ant elektros laidų įsikuriančių paukščių perėjimo sėkmingumui.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Possible effects of electromagnetic field on White StorksCiconia ciconiabreeding on low-voltage electricity line poles

Vaitkuvienė

Dagys

2014

Zoology and Ecology

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“…This can add substantially to the weight placed on the power-line support structures, and the excreta of nestling and adult birds deposited on pylons and lines can cause shortcircuits. Therefore, stork nesting on power-line support structures can pose important financial and operational problems for power companies (Muzinic 1999, Muzinic & Cvitan 2001, Garrido & Fernandez-Cruz 2003, Infante & Peris 2003. Consequently, in many parts of Europe active conservation programmes include moving nests located directly on poles to special platforms that, in theory, should reduce adult and young stork fatalities (Jakubiec 1989, Muzinic 1999, Muzinic & Cvitan 2001.…”

Section: Introductionmentioning

confidence: 99%

Long-Term Changes and Breeding Success in Relation to Nesting Structures used by the White Stork,Ciconia ciconia

Tryjanowski

Kosicki

Kuźniak

et al. 2009

Annales Zoologici Fennici

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Anthropogenic changes have strongly influenced the European landscape. In the last 50 years electric power-line networks have become a conspicuous part of that landscape. From the outset it was known that these lines and their support structures would cause fatalities in the white stork, Ciconia ciconia. From a long-term (1983-2006) study in Poland, we analysed breeding performance in stork nests on four types of structure (chimneys, roofs, trees and electricity poles). Whilst the numbers of nests on both electricity poles and chimneys have increased, there was no significant difference among the four structures in terms of breeding success. Since 1998, over 100 electricity poles in this white-stork breeding area have been modified to include a platform designed to accommodate a stork nest. A comparison between the annual means of nests on electricity poles with and without platforms did not reveal any significant differences in breeding success. However, closer examination of the nests transferred to platforms revealed a slight drop in chick productivity in the year following platform addition, which, however, became significantly higher in the subsequent year. Thus the transfer of nests to platforms appears to have only a short-term adverse effect and may be beneficial in the long run.

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“…The potential size of a house sparrow colony in a white stork nest is probably limited by social factors of the house sparrow population, such as optimization of the colony size (Vaclav and Hoi 2002). Recently, in many countries, including Poland (Muzinic and Cvitan 2001), white stork nests on electricity poles have been deliberately reduced in size and transferred to a special platform to reduce problems with disrupted electricity supply and white stork electrocution. Such deliberate nest size reduction would adversely affect house sparrows, reducing nest sites for them.…”

Section: Discussionmentioning

confidence: 99%

House sparrows benefit from the conservation of white storks

Kosicki

Sparks

Tryjanowski

2007

Naturwissenschaften

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As with many farmland bird species, the house sparrow Passer domesticus is declining in Europe, mainly due to intensification of agriculture reducing nest sites and food supplies. During 2002-2005, we studied the population size and nest site characteristics of house sparrows breeding within white stork Ciconia ciconia nests in a large area of agricultural landscape within western Poland. To explain sparrow density within stork nests, we examined characteristics of white stork nests (position, age, productivity) and the farm type around the nest. House sparrow density was greatest in the longest established (and hence larger) white stork nests located on traditionally managed farms. Two recent changes appear to have adverse effects on house sparrows. The first is the intensification of farming and the second is active management of white stork nests on electric poles to reduce nest size and thus avoid both disruption to the electrical supply and electrocution of white storks. Because the white stork has such a high profile in Poland, there are numerous schemes to conserve and enhance this species. In conclusion, we clearly show that protecting one species can have valuable, although unplanned, benefits to another species of conservation interest, the house sparrow.

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Choice of Nest Platform Material for the White Stork (Ciconia Ciconia)

Cited by 6 publications

References 0 publications

Possible effects of electromagnetic field on White StorksCiconia ciconiabreeding on low-voltage electricity line poles

Possible effects of electromagnetic field on White StorksCiconia ciconiabreeding on low-voltage electricity line poles

Long-Term Changes and Breeding Success in Relation to Nesting Structures used by the White Stork,Ciconia ciconia

House sparrows benefit from the conservation of white storks

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