Resumen de Migració prenupcial de limícoles als Salats i Muntanyans del Tarragonès
The phenology and composition of the wader community was studied ot a natural reserve in the province of Tarragona (NE Spain) during the period 1995-98. The studied area comprises 35 ha along two kilometres of coast, composed mainly of salt marshes covered in plants of the genus Arthrocnemum. Most censuses were dominated by a single species (dominance, ff47%; range: 37%- 57%). Wader abundance increased steadily from late March and early April, with a maximum concentration in the middle of April (24.6 birds/km); this level was maintained unti1 late May, when numbers decreased markedly. The Kentish Plover was the most regular species at the site (relative abundance: 7.5 +- 14, 25 birdsl km; i?: 2.94 birds/km), but curiously the highest relative abundance was for the Redshank [i?: 4.69 birds/km). Other species that were common during the spring passage were the Black-winged Stilt (1.73 birds/km), Ringed Plover (1. O5 birds/km) and Little Ringed Plover (0.93 birds/km). Given the scarcity of such habitats, the regular occurrence of 26 wader species underlines the need to apply efficient conservation measures in the area. Key words: waders, Spanish Mediterranean coast, pre-
