Showing papers by "Daniel Sol published in 1995"
TL;DR: The consequence of the removal experiments was a rapid immigration of individuals from areas where no control was exerted, supporting the hypothesis that compensatory changes in dispersal are probably the main mechanism of pigeons' response to external perturbations.
Abstract: The population stability and home ranges of rock doves (Columba livia var) were investigated by means of surveys and monitoring of marked individuals We also studied the population response to re
60 citations
TL;DR: Refuse tips and fidelity to the breeding colonies explained most of the variation found, but the effect of these factors was age-dependent, adults tending to stay closer to the main breeding colony on the Medes Islands and the proportion of juveniles in the population increasing with the distance from that colony.
Abstract: The influence of several variables on the abundance of wintering Yellow-legged Gulls was assessed in 20 randomly sampled districts in NE Spain. Refuse tips and fidelity to the breeding colonies explained most of the variation found. However, the effect of these factors was age-dependent, adults tending to stay closer to the main breeding colony on the Medes Islands and the proportion of juveniles in the population increasing with the distance from that colony. Gulls were distributed among refuse tips in proportion to refuse availability, which could be interpreted as refuse tips being the preferred foraging area for the population.
42 citations