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Documents disponibles écrits par cet auteur (25)
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Article
Julia Barczyk, Auteur ; Marta Cholewa, Auteur ; Grzegorz Neubauer, AuteurThe effectiveness of surveys of breeding birds varies due to multiple factors, with the primary being imperfect detection, which is particularly severe for elusive species. For example, the territory mapping method requires surveying an area mul[...]
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Mateusz Ledwon, Auteur ; Grzegorz Neubauer, Auteur ; Adam Flis, Auteur ; Agata Banach, AuteurOffspring desertion by a single parent, mainly the female, occurs in many charadriiform birds. According to the differential parental capacity hypothesis (DPCH), females are more likely to desert, since they may be in poorer body condition than [...]
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Lucyna Pilacka, Auteur ; Grzegorz Neubauer, Auteur ; Natali Karlionova, Auteur ; PAVEL Pinchuk, Auteur ; Włodzimierz Meissner, AuteurThe field studies were conducted in three ephemeral river islets of the middle Pripyat River, southern Belarus in 2006–2007. Nestlings of the Northern Lapwing (Vanellus vanellus) were ringed soon after hatching, and reencountered during subseque[...]
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Adam Zbyryt, Auteur ; Cezary Mitrus, Auteur ; Grzegorz Neubauer, AuteurProductivity of avian populations provides important demographic information helpful in understanding population dynamics and processes involved during species expansions. We tested the hypothesis that the productivity of the two species of ecol[...]
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Agata Banach, Auteur ; Grzegorz Neubauer, Auteur ; Adam Flis, Auteur ; Mateusz Ledwon, AuteurThe growth of a nestling during the first few weeks after hatching is crucial for its further life and is sensitive to the conditions experienced during this period. Among species exhibiting Sexual Size Dimorphism (SSD), one of the most importan[...]
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Grzegorz Neubauer, Auteur ; Arkadiusz Sikora, AuteurWe investigated the performance of hierarchical distance sampling (HDS) versus binomial N-mixture (binmix) models, both aiming at abundance (or, equivalently, density) estimation. We tested the accuracy of density estimates using simulated data [...]
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Mateusz Ledwon, Auteur ; Grzegorz Neubauer, Auteur ; Agata Żmuda, Auteur ; Adam Flis, AuteurIn species where the offspring are naturally deserted by one parent, the experimental stressing of breeding individuals can provide valuable information on the mechanisms underlying desertions and thus the evolution of parental roles. During a s[...]
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Dominik Marchowski, Auteur ; Grzegorz Neubauer, AuteurWe describe interspecific and intraspecific kleptoparasitic behaviour in Mallards Anas platyrhynchos, attempting to steal Zebra Mussels Dreissena potymorpha from other Mallards and Eurasian Coots Fulica atra. Both Coots and Mallards were most of[...]
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Arkadiusz Sikora, Auteur ; Grzegorz Neubauer, AuteurA fraction of White-throated Dippers Cinclus cinclus breeding in Scandinavia migrate south over the Baltic Sea during their short-distance migration to the winter quarters. The aim of our study was to investigate patterns of body mass changes be[...]
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Mateusz Ledwon, Auteur ; Grzegorz Neubauer, AuteurMales of many bird species feed their mates during the pre-incubation period. The food provisioned by males during these courtship feedings (CFs) represents the key source of energy for the female during egg formation. Non-pair males may trade f[...]
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Mateusz Ledwon, Auteur ; Grzegorz Neubauer, AuteurDans Ibis (159(4) 2017)In species with biparental care, a conflict of interest can arise if one mate tries to maximize its own reproductive success at the expense of the other's. One of the mates can desert the brood to accrue a number of benefits to enhance its own f[...]
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Mateusz Ledwon, Auteur ; Jacek Betleja, Auteur ; Grzegorz Neubauer, AuteurCapsule In the Whiskered Tern Chlidonias hybrida, hatching success was similar at nests where both parents were caught during the same trapping session and nests where parents were caught on different days. Trapping both mates during the same se[...]
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Mateusz Ledwon, Auteur ; Jacek Betleja, Auteur ; Grzegorz Neubauer, AuteurA method for trapping both parents of Whiskered Terns (Chlidonias hybrida), a semi-precocial species, using enclosures that allow access to the chicks until they fledge is described. The approach combines the gradual installation of enclosures w[...]
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Grzegorz Neubauer, Auteur ; Piotr Zieliński, Auteur ; Zbigniew Wojciechowski, Auteur ; Elzbieta Buszkiewicz, Auteur ; Joachim Siekiera, Auteur ; Artur Siekiera, AuteurCapsule Capture-mark-recapture data can be used to predict departure dates of Barn Swallows Hirundo rustica from summer roosts. Aims To investigate how long Barn Swallows remain at their breeding grounds before migration by estimating departure [...]
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Mateusz Ledwon, Auteur ; Grzegorz Neubauer, Auteur ; Jacek Betleja, AuteurWe present the first-ever survival estimates of the Whiskered Tern Chlidonias hybrida, based on the analysis of capture-recapture data (403 adults and 1,484 chicks ringed) collected between 1993 and 2011 in an increasing breeding population in s[...]
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Grzegorz Neubauer, Auteur ; Magdalena Zagalska-Neubauer, Auteur ; Robert Gwiazda, Auteur ; Marcin Faber, Auteur ; Dariusz Bukacinski, Auteur ; Jacek Betleja, Auteur ; Przernyslaw Chylarecki, AuteurThe current Situation of three species of large gulls (L. argentatus, L cachinnans and L. michahellis) in Poland is presented based on results of own studies and published data. Herring Gulls started to breed in the country in the late 1960s and[...]
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Grzegorz Neubauer, Auteur ; Magdalena Zagalska-Neubauer, Auteur ; Robert Gwiazda, Auteur ; Marcin Faber, Auteur ; Dariusz Bukacinski, Auteur ; Jacek Betleja, Auteur ; Przernyslaw Chylarecki, AuteurThe current Situation of three species of large gulls (L. argentatus, L cachinnans and L. michahellis) in Poland is presented based on results of own studies and published data. Herring Gulls started to breed in the country in the late 1960s and[...]
Article
Grzegorz Neubauer, Auteur ; Arkadiusz Sikora, AuteurWe investigated factors affecting the detection probability of the Collared Flycatcher Ficedula albicollis, a secretive forest passerine, whose range is confined to central and eastern Europe. With a robust design sampling protocol, 78 sites wer[...]
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Robert Gwiazda, Auteur ; Dariusz Bukacinski, Auteur ; Grzegorz Neubauer, Auteur ; Marcin Faber, Auteur ; Jacek Betleja, Auteur ; Magdalena Zagalska-Neubauer, Auteur ; Monika Bukacinska, Auteur ; Przemyslaw Chylarecki, AuteurThe food composition in breeding colonies of large gulls (mainly Caspian Gull Larus cachinnans) was investigated at three sites representing recently-colonized inland habitats in Poland: a gravel pit, an unregulated river and a reservoir. No dif[...]
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Ronald Klein, Auteur ; Grzegorz Neubauer, AuteurBased on recoveries of ringed birds, the seasonal occurrence of Caspian Gull and Yellow-legged Gull in the German and Polish lowlands is described. Both taxa were recorded in highest numbers in late summer and autumn, with the majority of birds [...]
Article
Grzegorz Neubauer, Auteur ; Magdalena Zagalska-Neubauer, Auteur ; Jacek Betleja, Auteur
Article
Chris Gibbins, Auteur ; Grzegorz Neubauer, Auteur ; Brian J. Small, AuteurVariability in large gulls creates problems for field observers, not least because of the possibility that hybridisation might be responsible for the appearance of what are perceived to be atypical individuals. However, without detailed informat[...]
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Arkadiusz Sikora, Auteur ; Grzegorz Neubauer, AuteurBreeding ranges of Scandinavian and central European Subspecies of the White-throated Dipper (Cinclus cinclus cinclus and C c. aquaticus) arc geographically separated by uninhabited lowlands. Between 1990 and 2006,25 confirmed and 4 probable bre[...]
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Mateusz Ledwon, Auteur ; Jacek Betleja, Auteur ; Tadeusz Stawarczyk, Auteur ; Grzegorz Neubauer, AuteurThe Whiskered Tern population in Poland has rapidly increased from 40 breeding pairs in 1990 to over 1,600 in 2007, with strongest local population in the Upper Vistula River Valley. Owing to rather low pre-breeding and adult apparent survival r[...]
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Grzegorz Neubauer, Auteur ; Marcin Faber, Auteur ; Magdalena Zagalska-Neubauer, AuteurHerring Larus argentatus (hereafter argentatus) and Lesser Black-backed Gull L fuscus complex, Collinson et al (2008) discussed several aspects underlying species limits in this group. These mainly included results of recent genetic studies and [...]
