VALUATION OF THE STATE OF THE
BONELLI'S EAGLE POPULATION IN PRIORAT (TARRAGONA)
about 25 years the Equip de Biologia de la Conservaciˇ - └liga
perdiguera regularly controls the state of the population of the eagles
that nest in the region of the Priorat (Tarragona). At the end of 90
years this was one of the population cores of the species with a better
state of conservation of all Catalunya, but unfortunately in the last 5
years the things seem to have changed very quickly. The reproductive
success of the pairs of eagles in this region has been diminishing
alarmingly and on the other hand the number of changed adults or of
died has been increased.
principles of this year 2005 our team is making the radiotracking of 4
pairs of Bonelli's eagles that raise within the mountain range of the
Montsant. After the 6 first months of radiotracking, the data seem to
confirm this worrisome fact. Anyone of the controlled pairs has ended up
raising this year, in a case because one of the adults was shoted just
when the chicken of the pair was born. In addition it has been possible
to perceive that the eagles have difficulty more and more to find food
in their territories, and one of the neighboring territories has been
vacated during the nesting period.
main cause of the situation more and more risky of this population
nucleus is probably the fast transformation that has undergone the
region of the Priorat in the last years. The increase of the forest
mass, combined with an intensification of the agricultural uses, mainly
the culture of the grapevine, has made consequently diminish the most
favorable habitats for the eagles and the populations of its main preys.
fact that can affect in a future the territories of the eagles is the
possible implantation of a new aeolian power station in this zone. To
all that it is precise to also add the existence of a great number of
dangerous electrical supports, in some of which two Bonelli's eagles
betwen other raptors have been recently found electrocuted.
Bonelli's eagle has been from always one of the more characteristic
biological elements of the Priorat. Its presence symbolizes the
ancestral balance between the man and the nature. A change of attitude
is precise towards a more sustainable development of the region that
guarantees the economic future of the population without damaging the
valuable natural patrimony of the Priorat.