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Population Trends of Common European Breeding Birds 2011

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document. be made of the information contained in this this in contained information the of made be may that use any for responsible not is Commission is report lies with the authors; the European European the authors; the with lies report is th of contents the for responsibility Sole RSPB. and and since January 2006 by the European Commission Commission European the by 2006 January since and UK), the in Partner International BirdLife the Sweden United Kingdom United Switzerland nancially since 2002 by the Royal Society for Protection of Birds (RSPB, (RSPB, Birds of Protection for Society Royal the by 2002 since nancially fi supported been has It Pan-European Common Bird Monitoring Scheme (PECBMS) Scheme Monitoring Bird Common Pan-European Census Council (EBCC) and BirdLife International. International. BirdLife and (EBCC) Council Census Bird European the of initiative joint a is PECBMS A. R. Renwick. Renwick. R. A. Breeding Birds 2011. CSO, Prague. CSO, 2011. Birds Breeding M. Anton, S. Herrando, Å. Lindström, H. Schmid, K. Risely, D. G. Noble, Noble, G. D. Risely, K. Schmid, H. Lindström, Å. Herrando, S. Anton, M. Slovenia Spain Citation: Citation: PECBMS 2011. Population Trends of Common European European Common of Trends Population 2011. PECBMS K. Slabeyová, J. Ridzoň, J. Topercer, V. Escandell, J. C. del Moral, Moral, del C. J. Escandell, V. Topercer, J. Ridzoň, J. Slabeyová, K. wicz, P. Chylarecki, D. Leitão, R. Martins, A. Meirinho, J. Figelj, P. Kmecl, Kmecl, P. Figelj, J. Meirinho, A. Martins, R. Leitão, D. Chylarecki, P. wicz, Cover photo: Cover Common Coots by Z. Tunka (birdphoto.cz). Tunka Z. by Coots Common W. Teunissen, C. Plate, M. Husby, J. Atle Kålås, B. Archita, T. Chodkie- T. Archita, B. Kålås, Atle J. Husby, M. Plate, C. Teunissen, W. Layout: Layout: J. Kaláček. Printed by JAVA Třeboň, Czech Republic. Republic. Czech Třeboň, JAVA by Printed Kaláček. J. A. Aunins, I. Mardega, O. Keišs, C. van Turnhout, A. van Dijk, A. Boele, Boele, A. Dijk, van A. Turnhout, van C. Keišs, O. Mardega, I. Aunins, A. eld. eld. Burfi J. I. and D. Coombes, P. Rossi, L. Fornasari, E. de Carli, G. Tellini Florenzano, Florenzano, Tellini G. Carli, de E. Fornasari, L. Rossi, P. Coombes, D. Compiled by: by: Compiled J. Škorpilová, P. Voříšek, A. Klvaňová, R. D. Gregory Gregory D. R. Klvaňová, A. Voříšek, P. Škorpilová, J. nos, S. Trautmann, M. Flade, J. Schwarz, T. Szep, K. Nagy, O. Crowe, Crowe, O. Nagy, K. Szep, T. Schwarz, J. Flade, M. Trautmann, S. nos, Norway Slovakia Portugal Poland E-mail: [email protected]. E-mail: A. Kuresoo, J. Elts, A. Lehikoinen, R. A. Väisänen, F. Jiguet, T. Komi- T. Jiguet, F. Väisänen, A. R. Lehikoinen, A. Elts, J. Kuresoo, A. CZ-150 00, Praha 5 - Smíchov, Czech Republic. Republic. Czech Smíchov, - 5 Praha 00, CZ-150 J. Chytil, T. Telenský, H. Heldbjerg, M. Lerche-Jørgensen, A. Eskildsen, Eskildsen, A. Lerche-Jørgensen, M. Heldbjerg, H. Telenský, T. Chytil, J. Czech Society for Ornithology, Na Bělidle 252/34, 252/34, Bělidle Na Ornithology, for Society Czech J.-Y. Paquet, I. Hristov, S. Spasov, D. Pomeroy, M. Hellicar, Z. Vermouzek, Vermouzek, Z. Hellicar, M. Pomeroy, D. Spasov, S. Hristov, I. Paquet, J.-Y. PECBMS contact: contact: PECBMS Petr Voříšek, project coordinator, coordinator, project Voříšek, Petr N. Teufelbauer, A. Weiserbs, Ch. Vansteenwegen, J.-P. Jacob, T. Kinet, Kinet, T. Jacob, J.-P. Vansteenwegen, Ch. Weiserbs, A. Teufelbauer, N. for national data collation from volunteers and further data analysis: analysis: data further and volunteers from collation data national for and A. Teller for help and general support. general and help for Teller A. and Many thanks go to the individuals and organisations responsible responsible organisations and individuals the to go thanks Many er, D. W. Gibbons, J. Tavares, D. Richard Richard D. Tavares, J. Gibbons, W. D. er, Schäff N. thank also We skilled volunteer counters responsible for data collection. data for responsible counters volunteer skilled Latvia Italy Norway Netherlands procedure. Above all, very special thanks to the many thousands of of thousands many the to thanks special very all, Above nal data analysis and computation computation and analysis data nal fi with contributed Netherlands) Acknowledgements A. van Strien, A. Gmelig Meyling and T. van der Meij (Statistics (Statistics Meij der van T. and Meyling Gmelig A. Strien, van A. Italy Ireland Hungary Greece Photo by Z. Tunka (birdphoto.cz) Tunka Z. by Photo Finland Estonia Denmark Germany France of Common European Breeding Birds 2011 Birds Breeding European Common of migrant’s population trend. population migrant’s ecting this this ecting aff factors as discussed are droughts Czech Republic Czech Cyprus Bulgaria Belgium Austria Denmark strongholds, but also climatic changes and Sahel Sahel and changes climatic also but strongholds, Population Trends Trends Population PECBMS national data providers data national PECBMS partially through habitat loss in its Mediterranean Mediterranean its in loss habitat through partially Woodchat Shrike is moderately declining at least least at declining moderately is Shrike Woodchat Data Indicators In this update, we were able to use more data sources, e.g. data from several na- tional schemes within one country were 140 combined. Although increased number EBCC/RSPB/BirdLife/Statistics Netherlands of countries and species has aff ected 120 + 1% the indicators, the overall picture is 100 consistent with the previous versions. 80 - 13% The indicator of common farmland spe- cies shows that their numbers halved Index (%) 60 Although the indicator of common forest birds appears to be since 1980s. The decline of numbers of 40 - 48% stable, the Goldcrest, the smallest European passerine, is Long-term trends (with the starting year ranging all common species (145) farmland birds has been accompanied common forest species (33) moderately declining in Europe, experiencing large fl uctuations from 1980 to 1984) of European common bird 20 by parallel decline of their biomass Photo by D. Jirovský (wildbirdphoto.eu) in population size most likely caused by severe winters. species. Data available for 116 species, 23 among common farmland species (36) (Voříšek et al. 2010, http://www.bou.org. them are species characteristic for farmland, 0 29 for forest and 64 are others, i.e. habitat 1980 1985 1990 1995 2000 2005 uk/bouproc-net/lfb3/vorisek-etal.pdf). generalists or characteristic for other habitats. Summary The category all common species includes The common forest bird indicator farmland, forest and other species. The wild bird indicators for Europe. The numbers in appears to keep stable, with some e e This leafl et presents the combined bird 33 species were classifi ed as forest birds, parentheses show the numbers of species in each indicator. signals of increase in last decade. species trends of 145 common bird of which 11 declined, 10 increased, species based on data collected from 25 9 remained stable and trends of 3 were European countries, covering the period classifi ed as uncertain. In this update, we introduce population trends of eight 1980–2009. e The other 76 species were classifi ed as new species including birds e Of the 145 species covered, 41 have other common birds, and included ge- characteristic for inland increased moderately and 2 strongly, neralists and specialists of other habitats. wetland habitats, 54 have declined moderately and 1 Of these, 24 declined, 27 increased, e. g. Wood Sandpiper. steeply, while 35 have remained stable. 20 remained stable and trends of 5 were In 12 cases species trends remain classifi ed as uncertain. Countries contributing their data to PECBMS. uncertain. e The situation of European farmland birds e Short-term trends (with the starting year ranging 36 species were classifi ed as farmland remains alarming. The index of common from 1990 to 2000) of European common bird The data are derived from annually operated breeding bird birds, of which 20 declined, 6 increased, farmland birds has fallen by 48% over species. Data available for 145 species, 36 among surveys in 25 countries, spanning diff erent periods, coordinated through the PECBMS. According to information 6 remained stable and trends of 4 were the last 30 years. them are species characteristic for farmland, 33 for forest and 76 are others, i.e. habitat from coordinators of national monitoring schemes, 11 150 The number of countries actively contributing classifi ed as uncertain. generalists or characteristic for other habitats. volunteer counters took part in the surveys in 2010. For to the PECBMS data set is steadily increasing as The category all common species includes details and methods see http://www.ebcc.info/pecbm.html. Photo by M. Mecnarowski (photomecan.eu) well as number of species covered. farmland, forest and other species. Legend for Table Trend classifi cation Population Trends of Common European Breeding Birds. Population Trends of Common European Breeding Birds. The quality of outputs may diff er species by species. Long-term Short-term Long-term Short-term The multiplicative overall slope estimate (trend In some cases, the coverage of species’ populations Species Trend Annual Class. Trend Annual Class. Habitat Species Trend Annual Class. Trend Annual Class. Habitat and thus the representativeness of the data may be value) in TRIM is converted into one of the (%) Change (%) (%) Change (%) (%) Change (%) (%) Change (%) lower at the beginning of the time series (for infor- following categories. The category depends on 3, 9 1, 6 mation on the time span and the list of countries the overall slope, as well as its 95% confi dence Ciconia ciconia White Stork 204 3.90 28 2.01 farm Oenanthe hispanica Black-eared Wheatear -8 -1.86 farm contributing with their data for individual species, interval (= slope +/- 1.96 times the standard Circus aeruginosus Western Marsh-harrier 310 4.36 -11 -0.14 — oth Oenanthe oenanthe Northern Wheatear 9 -66 -3.82 -69 -4.36 oth see http://www.ebcc.info/pecbm.html).
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  • Evidence That Population Increase and Range Expansion by Eurasian

    Evidence That Population Increase and Range Expansion by Eurasian

    bioRxiv preprint doi: https://doi.org/10.1101/491522; this version posted July 25, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 Evidence that population increase and range expansion by 2 Eurasian Sparrowhawks has impacted avian prey populations 3 4 Christopher Paul Bell bioRxiv preprint doi: https://doi.org/10.1101/491522; this version posted July 25, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 2 5 Abstract 6 The role of increased predator numbers in the general decline of bird populations in the late 7 20th century remains controversial, particularly in the case of the Eurasian Sparrowhawk, for 8 which there are contradictory results concerning its effect on the abundance of potential 9 prey species. Previous studies of breeding season census data for Sparrowhawks and prey 10 species in Britain have measured predator abundance either as raw presence-absence data 11 or as an estimate derived from spatially explicit modelling, and have found little evidence of 12 association between predator and prey populations. Here, a predator index derived from 13 site-level binary logistic modelling was used in a regression analysis of breeding census data 14 on 42 prey species, with significant effects emerging in 27 species (16 positive, 11 negative).