Expansion and ecology of the Collared Dove (Streptopelia decaocto), with new data for Central Spain

Authors: BERNIS, F., ASENSIO, B. and BENZAL, J.

Published: Volume 32(2), December 1985. Pages 279-294.

Language: Spanish

Original Title: Sobre la expansión y ecología de la Tórtola Turca (Streptopelia decaocto), con nuevos datos del interior de España

Keywords: geographical expansion, Iberia, impact and Streptopelia decaocto.


This paper reviews the geographical expansion and ecology of the Collared Dove, adding some new records from the interior of Spain. Map figure 1, shows the previous known colonized area in Spain (A), and the new penetrated area (B). For the new area, see also figure 2 and table I. Until 1980, practically all the recorded observations in Iberia fall in the Euro-boreal zone of the Peninsula. After 1980, new records also occur inside the Iberian Mediterranean zone, both, in the Ebro Valley and Catalonia, as well as (this paper) in the Castilian Plateau. The colonizing of the Iberian Peninsula appears as the Western symmetrical counterpart of the much older South-east European and Anatolian range of the bird.. Reconsidering the nature of the expansion and demography of the bird in different latitudes and bio-climatic zones of the Western Palearctic, the authors conclude that, within the Iberian Peninsula the Collared Dove will never expand and densify as dramatically as it has done in the medium latitudes of Central and West Europe. In the interior of Spain, the Collared Dove appears established only in towns or cities, but not as yet in villages or small urban entities (see survey 1984-85 in table II). Habitat and behaviour in Iberia are similar to the rest of Europe. In the Castilian Plateau, single estrategic perennifoliate trees are the only roosting or nesting sites recorded. Such trees (see table I) may be important during the relative severe winters of the so-called supramediterranean zone of the Peninsula. Some possible or observed interrelations of the Collared Dove with the co-habitant avifauna, as well as some kind of suggested impacts on the antropogenic environment, are also discussed.

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