caa a22 4500 463176006 CHVBK 20180406164826.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10336-007-0193-6 doi (NATIONALLICENCE)springer-10.1007/s10336-007-0193-6 How consistent are trends in arrival (and departure) dates of migrant birds in the UK? [Elektronische Daten] [T. Sparks, K. Huber, R. Bland, H. Crick, P. Croxton, J. Flood, R. Loxton, C. Mason, J. Newnham, P. Tryjanowski] We examine the first arrival and last departure dates of migrant bird species from, respectively, six and three English area bird reports. Of all 145 bird series, 50% demonstrated significantly earlier arrival in recent years, with the average advance over all species being 0.25days/year or 12days earlier over 50years. Thirty percent of 67 series demonstrated significantly later departure, with the average species delay being 0.16days/year or eightdays later over 50years. There was greater consistency between species in trends in first arrival than in last departure, with species such as sand martin Riparia riparia significantly earlier at all six sites while, for example, spotted flycatcher Muscicapa striata showed no significant change in arrival at all sites. Significant negative correlations between arrival dates and English temperatures were found for 26% of all series, but temperature effects on departures were less clear. We provide some evidence that trends in arrival dates may be masked by population declines in birds. Since migrant bird populations are in decline generally, this may suggest that the real advance in arrival dates may be greater than that reported here. Dt. Ornithologen-Gesellschaft e.V., 2007 County bird reports nationallicence Phenology nationallicence Migration nationallicence Climate change nationallicence Sparks T. NERC Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, PE28 2LS, Huntingdon, Cambridgeshire, UK aut Huber K. Fachochschule München, Lothstrasse 34, 80335, Munich, Germany aut Bland R. 11 Percival Road, BS8 3LN, Bristol, UK aut Crick H. British Trust for Ornithology, The Nunnery, Nunnery Park, IP24 2PU, Thetford, Norfolk, UK aut Croxton P. NERC Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, PE28 2LS, Huntingdon, Cambridgeshire, UK aut Flood J. 38 Kings Road, LS29 9AN, Ilkley, West Yorkshire, UK aut Loxton R. 12 Tan y Bwlch, Mynydd Llandegai, LL57 4DX, Bangor, Gwynedd, UK aut Mason C. Department of Biological Sciences, University of Essex, CO4 3SQ, Colchester, UK aut Newnham J. 61 Grand Avenue, BN11 5BA, Worthing, West Sussex, UK aut Tryjanowski P. Department of Behavioural Ecology, Adam Mickiewicz University, Umultowska 89, 61-614, Poznan, Poland aut Journal of Ornithology Springer-Verlag 148/4(2007-10-01), 503-511 0021-8375 148:4<503 2007 148 10336 https://doi.org/10.1007/s10336-007-0193-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10336-007-0193-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sparks T. NERC Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, PE28 2LS, Huntingdon, Cambridgeshire, UK aut NATIONALLICENCE 700 1- Huber K. Fachochschule München, Lothstrasse 34, 80335, Munich, Germany aut NATIONALLICENCE 700 1- Bland R. 11 Percival Road, BS8 3LN, Bristol, UK aut NATIONALLICENCE 700 1- Crick H. British Trust for Ornithology, The Nunnery, Nunnery Park, IP24 2PU, Thetford, Norfolk, UK aut NATIONALLICENCE 700 1- Croxton P. NERC Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, PE28 2LS, Huntingdon, Cambridgeshire, UK aut NATIONALLICENCE 700 1- Flood J. 38 Kings Road, LS29 9AN, Ilkley, West Yorkshire, UK aut NATIONALLICENCE 700 1- Loxton R. 12 Tan y Bwlch, Mynydd Llandegai, LL57 4DX, Bangor, Gwynedd, UK aut NATIONALLICENCE 700 1- Mason C. Department of Biological Sciences, University of Essex, CO4 3SQ, Colchester, UK aut NATIONALLICENCE 700 1- Newnham J. 61 Grand Avenue, BN11 5BA, Worthing, West Sussex, UK aut NATIONALLICENCE 700 1- Tryjanowski P. Department of Behavioural Ecology, Adam Mickiewicz University, Umultowska 89, 61-614, Poznan, Poland aut NATIONALLICENCE 773 0- Journal of Ornithology Springer-Verlag 148/4(2007-10-01), 503-511 0021-8375 148:4<503 2007 148 10336 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer