Valladares, F/ Sancho, LG 1993: Biología de las comunidades liquénicas de los posadero rocosos de aves en el Sistema Central español [Biology of the lichen communities of rocky bird perches in the Spanish Sistema Central]. - Rivasgodaya7: 5-68. [RLL List # 160 / Rec.# 19236] Keywords: ALTITUDE/ BIRD DROPPINGS/ BIRD PERCHES/ COMMUNITIES/ COMPETITION/ ORNITHOCOPROPHILOUS/ PHYTOSOCIOLOGY
Abstract: 38 fig. 8 tab. [A study based on 102 relevés along an altitudinal gradient at 24 localities.]