Short communication, Note
Monitoring of the arrival time in the barn swallow (Hirundo rustica) population from Mokrice village (Croatia), 1980–2011
Zdravko Dolenec
; Department of Zoology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, HR-10000 Zagreb, Croatia
Abstract
This paper shows the results of observed barn swallow Hirundo rustica arrival from wintering in Africa, south of the Sahara, to the nesting area in the village Mokrice (northwestern Croatia). The local barn swallow population was monitored for three decades (1980–2011). Although there have been constant fluctuations in date of spring arrival, there was no significant change in the trend of the arrival time. Spring air temperature (March–April), measured at a nearby meteorological station, showed a trend of significant increase in the average temperature by approximately 2.2 °C in the same period.
Keywords
barn swallow; arrival date; spring temperature; long–term trend
Hrčak ID:
104421
URI
Publication date:
30.6.2013.
Visits: 1.848 *