Vittorio Pedrocchi

Vittorio Pedrocchi
Catalan Ornithological Institute | ICO

PhD Biological Sciences

About

48
Publications
10,746
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791
Citations
Additional affiliations
June 1991 - December 1998
University of Barcelona
Position
  • PhD Student

Publications

Publications (48)
Article
Full-text available
Black wheatear (Oenanthe leucura) territory in the Garraf Park: review and update This paper compiles data on 40 territories documented from the 1960s to 2018, based on citations from own sources and the literature. After a stable period lasting until 2014, a decline in the number of territories was observed, dropping to 5 territories in 2018. Sinc...
Conference Paper
Full-text available
Monitoring of common birds in the Olèrdola Park began in 2002, adopting the protocol from the Catalonia common bird monitoring programme (SOCC in its Catalan abbreviation). The data collected over a 17-year period has enabled the detection of 87 species during the breeding season and 63 species during the winter season. Population trends in 21 spec...
Poster
Full-text available
Heron's Colony, population evolution, Cattle Egret, Night Heron, Squacco Heron, Little Egret, Medes Islands
Book
Full-text available
Study of Mongolian lakes and Spanish lakes. Biodiversity, limnology, ecology and conservation of steppe lakes. Recovery of one steppe lake: the case of Ivars and Vila-Sana (Spain). Results of survey on 868 lakes in Mongolia. Biodiversity of entomo crustaceans and birds. Environmental problems of Spanish steppe lakes.
Book
Full-text available
Beech forests. Habitats Management Handbooks. In the framework of a cooperation agreement between the "Diputació de Barcelona" and the "Obra Social de la Caixa" has been carried out the preparation of a management of forest habitats handbooks . The manuals compile information about numerous aspects that affect the current status and dynamics of hab...
Book
Full-text available
Pinus pinea forests. Habitats Management Handbooks. In the framework of a cooperation agreement between the "Diputació de Barcelona" and the "Obra Social de la Caixa" has been carried out the preparation of the management of forest habitats handbooks. The manuals compile information about numerous aspects that affect the current status and dynamics...
Book
Full-text available
Pinus uncinata forests. Habitats Management Handbooks. In the framework of a cooperation agreement between the "Diputació de Barcelona" and the "Obra Social de la Caixa" has been carried out the preparation of the management of forest habitats handbooks. The manuals compile information about numerous aspects that affect the current status and dynam...
Book
Full-text available
Scots pine forests. Habitats Management Handbooks. In the framework of a cooperation agreement between the "Diputació de Barcelona" and the "Obra Social de la Caixa" has been carried out the preparation of the management of forest habitats handbooks. The manuals compile information about numerous aspects that affect the current status and dynamics...
Chapter
Occurrence and status of Black-crowned Night Heron (Nycticorax nycticorax) in Catalonia during the non-breeding seasons from 2006 to 2009
Book
Full-text available
Pinus nigra subsp. salzmannii forests. Habitats Management Handbooks. In the framework of a cooperation agreement between the "Diputació de Barcelona" and the "Obra Social de la Caixa" has been carried out the preparation of the management of forest habitats handbooks. The manuals compile information about numerous aspects that affect the current s...
Book
Full-text available
Aleppo pine forests. Habitats Management Handbooks. In the framework of a cooperation agreement between the "Diputació de Barcelona" and the "Obra Social de la Caixa" has been carried out the preparation of the management of forest habitats handbooks. The manuals compile information about numerous aspects that affect the current status and dynamics...
Article
Full-text available
El primer atles dels ocells nidificants de Catalunya, publicat a principis dels vuitanta del segle passat, va cobrir en una quadrícula UTM de 10x10 km una àrea de 32.000 km2 situada al nordest d’Espanya, constituint una experiència pionera en relació a la cartografia d’ocells en la conca mediterrània. Ara es presenten les novetats i els principals...
Article
Full-text available
The diet and feeding ecology of breeding Audouin's Gull Larus audouinii were examined at the Ebro Delta (NW Mediterranean) during 1993, 1994 and 1995 and found to depend on the activity of the commercial fisheries operating within the foraging range of the birds in the colony. One of the largest fishing fleets in the Mediterranean operates in this...
Article
Full-text available
The first Catalan Breeding Bird Atlas (CBBA) published in the early eighties, covered, with a 10x10 km UTM grid, an area of 32,000 km 2 in north-east Spain and stands as a pioneer landmark in bird mapping in the Mediterranean region. Here, we present the context, novelties and main results of the new CBBA conducted 20 years later, between 1999 and...
Article
Full-text available
2 ) to the probability of occurrence (ranging from 0 to 1) for the sample of 1x1 km UTM squares in which transects were located. Model fit was highly significant in many cases, thus allowing the projection of species densities to non surveyed areas from which the probability of occurrence had been assessed. The Atlas-SOCC models were used to predic...
Article
Full-text available
El SOCC és el Seguiment d’Ocells Comuns a Catalunya. Encara que l’objectiu principal del projecte és determinar les tendències de les poblacions nidificants i hivernants, la seva integració amb mapes d’alta resolució obtinguts a través de models d’adequació de l’hàbitat en el marc de l’Atles dels ocells nidificants de Catalunya ha demostrat ser una...
Article
Full-text available
Bird Census News (Journal of the European Bird census Council)
Article
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The impact of yellow-legged gulls on Audouin’s gulls was studied by means of observations from a blind, at the Ebro Delta, the Chafarinas Islands and the Columbretes Islands colonies, during different stages of Audouin’s Gulls breeding cycle. The rates of predation (upon eggs and chicks) and kleptoparasitism (aerial and on courtship and chick-feedi...
Article
Full-text available
The impact of yellow-legged gulls on Audouin's gulls was studied by means of observations from a blind, at the Ebro Delta, the Chafarinas Islands and the Columbretes Islands colonies, during different stages of Audouin's Gulls breeding cycle. The rates of predation (upon eggs and chicks) and kleptoparasitism (aerial and on courtship and chick-feedi...
Article
Full-text available
18 August-4 September 1998, we conducted 23 3-4 hr point-counts in an Atlantic rainforest area of southeastern Brazil to evaluate the richness and relative abundance of raptors in two adjacent protected areas, Parque Estadual Intervales and the Parque Estadual Turístico do Alto Ribeira. During 88.2 hr, we recorded 334 contacts with raptors, involvi...
Article
Full-text available
We analysed and compared the diet of Audouin´s gulls Larus audouinii between their two largest breeding sites in the world: the Ebro Delta and the Chafarinas Islands (western Mediterranean). These two localities showed marked differences in the features of the commercial fishing fleet: in the Ebro Delta area a large fishing fleet produced large amo...
Article
Full-text available
Publicación online disponible en: http://www.icm.csic.es/scimar/index.php [EN] We analysed and compared the diet of Audouin´s gulls Larus audouinii between their two largest breeding sites in the world: the Ebro Delta and the Chafarinas Islands (western Mediterranean). These two localities showed marked differences in the features of the commercial...
Article
Full-text available
Evolutionary changes in developmental timing and rates (heterochrony) are a source of morphological variation. Here we explore a central issue in heterochronic analysis: are the alterations in developmental timing and rates the only factor underlying morphological heterochrony? Tarsometatarsal growth through endochondral ossification in Ardeidae ev...
Article
During the Audouin's Gull's breeding season at the Ebro Delta in 1993, 24 fresh eggs from eight three-egg clutches (modal clutch-size) were collected at the peak of the laying period. Eggs were processed to obtain formalin-fixed yolks, which were halved and stained using the potassium dichromate method. Digitized images of the yolks were examined t...
Thesis
Full-text available
Egg parameters of Audouin’s Gull (Larus audouinii, Payraudeau 1826) are studied depending on variability factors such as food availability. This allows to see how can the gulls regulate their egg production, by modifying egg parameters. The study compares two colonies from Spain: Chafarinas Is. (lower food availability) and Ebro Delta (higher). Tim...
Article
Full-text available
Joaquín Costa reservoir is situated in an area of great interest for biodiversity conservation, given that it contains an outstanding fauna among which the aquatic bird community and the otter population (Lutra lutra) stand out. The monitoring of the changes brought about by the effects of the dam drainages on the populations of the reservoir and t...
Book
Full-text available
Ecology of the Monegros, a semidesert area in Spain. A multidiscipinar study of the region. Ecology, Geology, Weather, Water, Water organisms, Plants, Algae, Lichens, Fungi, Bryophytes, Flora, Landscape, Invertebrates, Farms, BirdsOther ertebrates, Winter, Itineraries
Article
Full-text available
The diets of two potential competitor species, Audouin's Larus audouinii and yellow-legged gulls Larus cachinnans, were examined while they bred at the Chafarinas Islands during 1993, 1994, and 1995. Data were collected during two commercial fishing regimes: (1) trawling and purse seine fisheries, and (2) diurnal trawlers only. Since the food suppl...
Article
Full-text available
We give the results of a raptor survey conducted in August 1994 in the Porque Estadual Intervales, a well preserved area of Atlantic rainforest in southeastern Brazil. Point counts were more effective than transect counts. Ten species of raptors were detected. The presence of a pristine population of Mantled Hawks (Leucopternis polionota), Black Ha...
Article
Full-text available
We analyzed five different types of food samples from Audouin' s Gull (Larus audouinii), collected during the breeding seasons of 1994 and 1995 at its two main breeding colonies, the Ebro Delta and the Chafarinas Islands. These food samples included sponta-neous regurgitates, dry boli containing partially digested food, food remains, pellets, and p...
Article
Full-text available
Ornithodoros maritimus is recorded for the first time in Spain, on chicks of the yellow-legged gull Larus cachinnans, collected on Medes islands (Mediterranean sea). Some notes about prevalence and parasitation rates are included.
Article
Full-text available
Differences in diet between chicks and adults of Audouin's Gull Larus audouinii were examined in the Chafarinas Islands (SW Mediterranean) during the breeding seasons of 1993 and 1994. The major food type for chicks on the Chafarinas Islands were fish, both epipelagic (some of them coming from purse-seine activity) and benthonic (coming from trawle...
Article
Full-text available
With a diurnal average temperature of 21°C, grasshoppers consume daily their body weight in grass. In 1987 the density of grasshoppers was so high that their consumption was similar to or larger than that of cattle. In ungrazed grasslands Acrididae may be important in the acceleration of nutrient recycling. -from Authors

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