caa a22 4500 463174976 CHVBK 20180406164823.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1007/s10336-006-0100-6 doi (NATIONALLICENCE)springer-10.1007/s10336-006-0100-6 Breeding patterns of great tits ( Parus major ) in pine forests along the Portuguese west coast [Elektronische Daten] [Carla Pimentel, Jan-Åke Nilsson] The breeding biology of great tits (Parus major) was studied in two forests of maritime pine (Pinus pinaster) on the west coast of Portugal, 200km apart: Leiria (north) and Apostiça (south). These two forests are located in a transition zone between Atlantic climate in the north, and Mediterranean climate in the south. Breeding onset was, on average, in the second and third week of March, which are the earliest records of breeding for this species. The southern population started to breed earlier than the northern one and produced a larger first clutch, 8.3 and 7.4 eggs, respectively. Corresponding to larger clutch sizes, we also found a higher first brood fledgling production in Apostiça compared to Leiria, 6.1 and 5.4 fledglings, respectively. However, the total number of fledglings produced per pair was higher in Leiria (8.3) than in Apostiça (7.7), due to higher productivity of second clutches (4.7 and 2.7 fledglings, respectively). Accordingly, the allocation of eggs between successive breeding attempts was more equal in Leiria. Results are discussed in accordance to the different climatic patterns in the two areas. It is suggested that the timing of breeding and different allocation of reproductive investment between successive breeding attempts play an important role in optimizing breeding tactics in this facultative multiple-brooded passerine in different climatic areas. Dt. Ornithologen-Gesellschaft e.V., 2006 Climatic gradients nationallicence Coastal pine forests nationallicence Multiple breeding nationallicence Parus major nationallicence Second broods nationallicence Pimentel Carla DCEA/FCT, Universidade Nova de Lisboa, 2825-516, Campus de Caparica, Portugal aut Nilsson Jan-Åke Department of Animal Ecology, Lund University, 223 62, Lund, Sweden aut Journal of Ornithology Springer-Verlag 148/1(2007-01-01), 59-68 0021-8375 148:1<59 2007 148 10336 https://doi.org/10.1007/s10336-006-0100-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10336-006-0100-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pimentel Carla DCEA/FCT, Universidade Nova de Lisboa, 2825-516, Campus de Caparica, Portugal aut NATIONALLICENCE 700 1- Nilsson Jan-Åke Department of Animal Ecology, Lund University, 223 62, Lund, Sweden aut NATIONALLICENCE 773 0- Journal of Ornithology Springer-Verlag 148/1(2007-01-01), 59-68 0021-8375 148:1<59 2007 148 10336 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer