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1 July 2007 Survival Rates of Young Magpies Pica pica in a Mountain Population of Eastern Spain
Adrián Ponz Miranda, José Antonio Gil-Delgado Alberti, Germán M. López Iborra
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The aim of this study was to estimate the survival of young Magpies between fledging and the next breeding season and to identify some of the factors affecting it. A total of 50 nestlings were colour-ringed in two breeding seasons in the valley of the Pitarque River (Teruel, E Spain), and were monitored weekly until May of the following year. 59 nestlings were also colour-ringed in two nearby localities (4–5 km) to detect possible dispersal to and from our study area. Mark-recapture analyses were used to estimate weekly survival, which was assumed to be constant for periods of four weeks in order to reduce the number of parameters. Models with the effect of time, age class, season and year were fitted, and the best models were selected using quasi-likelihood Akaike's Information Criterion adjusted for small sample sizes (QAICC???). The best three models included seasonal variation in survival, and the second and third models also selected the effect of age class. The seasonal variation in the survival of young Magpies exhibited two critical moments: firstly, on becoming independent of the parent birds (August—September), and secondly, when individuals abandoned the communal roost and started to establish their own territories (February—March). The weight of 14-day-old nestlings positively affected survival until 4 and 6 months after leaving the nest. No evidence for dispersal was found; this supports the view that survival does indeed decrease in the cited periods, possibly because of the increased risk of predation.



A. A. Y. Adams , S. K. Skagen , R. D. Adams 2001. Movements and survival of Lark Bunting fledglings. Condor 103: 643–647. Google Scholar


A. A. Y. Adams , S. K. Skagen , J. A. Savidge 2006. Modeling post-fledging survival of Lark Buntings in response to ecological and biological factor. Ecology 87: 178–188. Google Scholar


A. D. Anders , D. C. Dearborn , J. Faaborg , Thompson , R. F. 1997. Juvenile survival in a population of neotropical migrant birds. Conserv. Biology 11: 698–707. Google Scholar


A. Antonov , D. Atanasova 2003. Small-scale differences in the breeding ecology of urban and rural Magpies Pica pica. Ornis Fennica 80: 21–30. Google Scholar


G. Baeyens 1981. Functional aspects of serial monogamy: the magpie pair-bond in relation to its territorial system. Ardea 69: 145–166. Google Scholar


E. J. Belda , E. Barba , J. A. Gil-Delgado , D. J. Iglesias , G. M. López , J. S. Monrós 1998. Laying date and clutch size of Great Tits (Parus major) in the Mediterranean region: a com-parison of four habitat types. J. Ornithol. 139: 269–276. Google Scholar


T. R. Birkhead , S. F. Goodburn 1989. Magpie. In: I. Newton (ed.). Lifetime reproduction in birds. Academic Press, London, pp. 173–182. Google Scholar


T. R. Birkhead 1991. The Magpies. The Ecology and Behaviour of Black-billed and Yellow-billed Magpies. T. & A. D. Poyser, London. Google Scholar


K. P. Burnham , D. R. Anderson 2002. Model selection and multimodel inference. 2nd edition. Springer-Verlag. New York. Google Scholar


E. Cooch , G. C. White [online] 2005. Using MARK-a gentle introduction, <∼gwhite/ mark/mark.htm> (June 2005). Google Scholar


J. De La Puente , M. Yanes 1995. [Nest predation rates in above-ground nesting Iberian paserines]. Ardeola 42: 139–146. Google Scholar


M. S. Dhindsa , D. A. Boag 1989. Influence of age on the flushing distance of marked and unmarked Black-billed Magpies. Ornis Scand. 20: 76–79. Google Scholar


P. Drent 1984. Mortality and dispersal in summer and its consequences for the density of great tits Parus major at the onset of autumn. Ardea 72: 127–162. Google Scholar


S. F. Eden 1985. Social organization and the dispersal of non-breeding magpies Pica pica. Ph. D. Thesis, Univ. of Sheffield. Google Scholar


S. F. Eden 1987. Natal philopatry of the Magpie Pica pica. Ibis 129: 477–490. Google Scholar


K. Eguchi 1995. Seasonal change in breeding success of the Black-Billed Magpie Pica pica sericea. Jap. J. Orn. 44: 73–80. Google Scholar


J. A. Gil-Delgado , P. Lacort 1996. [The breeding season of Blackbird Turdus merula in orange groves: breeding time and number of clutches]. Ardeola 43: 41–48. Google Scholar


C. A. Hagen , J. C. Pitman , B. K. Sandercock , R. J. Robel , R. D. Applegate 2005. Age — specific variation in apparent survival rates of male Lesser Prairie chickens. Condor 107: 78–86. Google Scholar


G. Hogstedt 1981. Should there be a positive or negative correlation between survival of adults in a bird population and their clutch size? Am. Nat. 118: 568–571. Google Scholar


M. Husby , T. Slagsvold 1992. Post-fledging behaviour and survival in male and female Magpies Pica pica. Ornis Scand. 23: 483–490. Google Scholar


L. Jerzak 1994. Breeding ecology of an urban Magpie Pica pica population in Zielona Gora (SW Poland). Acta Ornithol. 29: 123–133. Google Scholar


J. D. Lebreton , K. P. Burnham , J. Clobert , D. R. Anderson 1992. Modeling survival and testing biological hypotheses using marked animals: A unified approach with case studies. Ecol. Monogr. 62: 1–118. Google Scholar


R. D. Magrath 1991. Nestling weight and juvenile survival in the blackbird, Turdus merula. J. Anim. Ecology 60: 335–351. Google Scholar


B. Naef-Daenzer , F. Widmer , M. Nuber 2001. Differential post-fledging survival of great and coal tits in relation to their condition and fledging date. J. Anim. Ecol. 70: 730–738. Google Scholar


M. M. Nice 1957. Nesting success in altricial birds. Auk 74: 305–321. Google Scholar


C. M. Perrins 1979. British Tits. Collins, London. Google Scholar


C. M. Perrins 1980. Survival of young great tits. Proc. XVII Int. n Ornithol. Congress. Berlin, pp. 159–174. Google Scholar


A. Ponz 2005. [Ecology of Magpie (Pica pica) in a mountain area of Aragon (Pitarque, Teruel)]. Ph. D. Thesis, Univ. Valencia. Google Scholar


A. Ponz , E. Barba , J. A. Gil-Delgado 1996. Population changes and breeding ecology of the Cirl Bunting Emberiza cirlus in Eastern Spain. Bird Study 43: 38–46. Google Scholar


A. Ponz , J. A. Gil-Delgado 2004. [Breeding biology of Magpie Pica pica in a montane area of Aragon]. Ardeola 51: 411–423. Google Scholar


A. Ponz , J. S. Monrós 2000. [Two factors affecting communal roosting in magpies (Pica pica): human disturbance and minimum temperatures]. Ardeola 47: 85–87. Google Scholar


K. P. Reese , J. A. Kadlec 1985. Influence of high density and parental age on the habitat selection and reproduction of Black-billed Magpies. Condor 87: 96–105. Google Scholar


M. Soler , J. G. Martínez , J. J. Soler 1996. Effects of brood parasitism by the great spotted cuckoo on the breeding success of the magpie host: an experimental study. Ardeola 43: 87–96. Google Scholar


SPSS Inc. 2001. SPSS/PC for Windows. Version 11.1. SPSS Inc. Chicago. Google Scholar


L. D. Todd , R. G. Poulin , T. I. Wellicome , R. M. Brigham 2003. Post-fledging survival of burrowing owls in Saskatchewan. J. Wildl. Manage. 67: 512–519. Google Scholar


J. D. Wiens , B. R. Noon , R. T. Reynolds 2006. Post-fledging survival of northern goshawks: The importance of prey abundance, weather, and dispersal. Ecol. Appl. 16: 406–418. Google Scholar


M. Yanes , F. Suárez 1996. [Nest mortality and lark populations viability]. Ardeola 43: 57–68. Google Scholar
Adrián Ponz Miranda, José Antonio Gil-Delgado Alberti, and Germán M. López Iborra "Survival Rates of Young Magpies Pica pica in a Mountain Population of Eastern Spain," Acta Ornithologica 42(1), 63-68, (1 July 2007).
Received: 1 November 2006; Accepted: 1 April 2007; Published: 1 July 2007
mountain area
Pica pica
population tendency
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