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Temperature and precipitation effects on breeding productivity of some passerines – a multivariate analysis of constant effort mist-netting data

Gyurácz, József, Bánhidi, Péter, Góczán, József, Illés, Péter, Kalmár, Sándor, Lukács, Zoltán, Németh, Csaba, Varga, László
Biologia 2016 v.71 no.11 pp. 1298-1303
Cyanistes caeruleus, Ficedula hypoleuca, Parus, Phylloscopus collybita, Sylvia atricapilla, Sylvia communis, Sylvia curruca, Turdus merula, birds, breeding, breeding season, climatic factors, correspondence analysis, hatching, multivariate analysis, reproductive success, temperature
The relationship between the temperature, the precipitation of the breeding season’s months, and the annual proportions of the first year birds such as the indicators of the breeding success were examined by canonical correspondence analysis (CCA) having targeted nine common passerine species. The results of our study have shown that the high April and May temperature has been favourable for the breeding of the partial and the short-distance migrants, the common blackbird (Turdus merula) and the Eurasian blackcap (Sylvia atricapilla). This is confirmed by the fact that the highest annual capture (164) of the hatching year of the Eurasian blackcap was in 2009, when there was the mildest April during the study period (13.57°C), while the lowest annual capture (15) was in 2002, when there was the second coolest April (9.78°C). The common chiffchaff (Phylloscopus collybita) was a wet spring-tolerant species. There was negative correlation between April, May, June temperature and proportion of young great tit. The relationships between the annual captures of first year birds and the climate variables could not be identified with the methods used for the European robin (Erithacus rubecula), the common whitethroat (Sylvia communis), the lesser whitethroat (Sylvia curruca) and the blue tit (Parus caeruleus). The temperature in July was the most important climate factor for the breeding success of the long-distance migrant European pied flycatcher (Fycedula hypoleuca).