Vårflyttningens tidsmönster hos tropikflyttare: en jämförelse mellan Ottenby, Sverige och Capri, Italien

Författare

  • Niclas Jonzén Avdelningen för teoretisk ekologi, Lunds universitet
  • Dario Piacentini Istituto Nazionale per la Fauna Selvatica
  • Arne Andersson Ottenby fågelstation
  • Alessandro Montemaggiori Istituto Nazionale per la Fauna Selvatica
  • Martin Stervander Ottenby fågelstation
  • Diego Rubolini Dipartimento di Biologia Animale, Università degli Studi di Pavia
  • Jonas Waldenström Avdelningen för zooekologi, Lunds universitet
  • Fernando Spina Istituto Nazionale per la Fauna Selvatica

DOI:

https://doi.org/10.34080/os.v16.22412

Nyckelord:

fenologi, tropikflyttare, långdistansflyttning, flyttningshastighet, tättingar, klimatförändring

Abstract

Some migratory birds have advanced their spring arrival to Northern Europe, possibly by increasing the speed of migration through Europe in response to increased temperature en route. In this paper we compare the phenology of spring arrival of seven trans-Saharan migrants along their migration route and test for patterns indicating that migration speed varied over the season using long-term data collected on the Italian island of Capri and at Ottenby Bird Observatory, Sweden. There was a linear relationship between median arrival dates on Capri and at Ottenby. The slope was not significantly different from one. On average, the seven species arrived 15 days later at Ottenby compared to Capri. There was a (non-significant) negative relationship between the species-specific arrival dates at Capri and the differences in median arrival dates between Capri and Ottenby, possibly indicating a tendency towards faster migration through Europe later in the season. To what extent different species are able to speed up their migration to benefit from the advancement of spring events is unknown.

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Publicerad

2006-04-01

Referera så här

Jonzén, N., Piacentini, D., Andersson, A., Montemaggiori, A., Stervander, M., Rubolini, D., … Spina, F. (2006). Vårflyttningens tidsmönster hos tropikflyttare: en jämförelse mellan Ottenby, Sverige och Capri, Italien. Ornis Svecica, 16(1–2), 27–33. https://doi.org/10.34080/os.v16.22412

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