1,721,119 research outputs found
Osservazioni preliminari sulla fenologia riproduttiva della popolazione di rospo smeraldino, Bufo viridis Laurenti, 1768, della Riserva Naturale di Monte Pellegrino (Palermo)
No full textPreliminar observation about reproduction phenology of the green toad population in the natural reserve of “Monte Pellegrino” (Sicily). The Green toad is one of the six species of amphibias actually living in Sicily, the only one that has colonised some of small islands (Ustica and Lampedusa). The sicilian populations are, neverthless, the most meridional of european distribution and subject to insularity. The reproductive period of one population of north-west Sicily that we have studied, has began at the beginning of january, with a result of anticipation of minimum one month respect of the periods analysed by others authors in different italian countries. it could be explaned not only with the positive clima, because of
the low latitude, but even for the big body size of this population that gives influence in positive manner to the activity of the species.The non reproduction during the autumnal months that usually happen in the Ustica island, where latitude, precipitations and temperature are almost similar to the “Monte Pellegrino” area, could be depend with the low percentage of humidity that influences in opposite manner into the mouvement of the Green toad in direction of the reproduction site
Selezione sessuale in una popolazione di Rospo smeraldino, Bufo viridis Laurenti, 1768, presente nella Riserva Naturale Orientata di Monte Pellegrino (Palermo, Sicilia)
No full textBiometrical analyses of a Sicilian Green Toad, Bufo siculus (Stöck et al. 2008), population living in Sicily (Italy).
Full text linkMorphometry structure of Sicilian green toad from the Nature Reserve "Monte Pellegrino" (north-western Sicily) was studied. A total of 666 individuals (354 males and 312 females) were captured in 2003 during reproduction period. Meaningful differences have statistically emerged among the two sexes and the body weight is the best parameter (up to 92% correct classification), followed by the length of the body (up to 90% correct classification). The simultaneous use of all the examined characters only increases of 1% the probability for correct discrimination of the sex. In comparison to the dimension of other green toad populations studied by other authors, the body size of this sicilian population results elevated, similar to that of Corsica and of Sardinia. It is possible that the high dimension of the Sicilian population is the result of low competition with other amphibians species and/or to the absence of a winter latency
Selezione sessuale in una popolazione di Rospo smeraldino, Bufo viridis Laurenti, 1768, presente nella Riserva Naturale Orientata di Monte Pellegrino (Palermo, Sicilia).
No full textAnalisi biometrica applicata su una popolazione in riproduzione di Rospo smeraldino, Bufo viridis Laurenti, 1768, presente nella Riserva Naturale Orientata di Monte Pellegrino (Palermo, Sicilia)
No full textCensus of Alectoris graeca whitakeri in the ZPS ITA010029 Monte Cofano, Capo San Vito e Monte Sparagio
No full textPhylogeography link between Sicilian and Corso-Sardinian Testudo h. hermanni confirmed
Full text linkOur study confirms that Sicilian and Corso-Sardinian Testudo h. hermanni share a certain mtDNA haplotype, while tortoises from peninsular Italy harbour
slightly different haplotypes. When the fossil record is considered, this striking pattern
agrees well with the idea of local extinction in Corsica and Sardinia and later replacement by tortoises originating elsewhere, either by natural oversea dispersal or translocation by man
Dinamica spaziale e fedeltà territoriale al sito post-riproduttivo del Rospo smeraldino (Bufo viridis).
No full textCensimento di coturnice di Sicilia Alectoris graeca withakeri nella ZPS ITA010029 Monte Cofano, Capo San Vito e Monte Sparagio
No full textCensus of the Sicilian rock partridge Alectoris graeca whitakeri population in ZPS ITA010029 Monte Cofano, Capo San Vito and Monte Sparagio
Full text linkDuring the project "LIFE09 NAT/IT/000099-SICALECONS-Urgent actions for the conservation of Alectoris graeca whitakeri", this species was censused in the ZPS ITA010029 Monte Cofano, Capo San Vito and Monte Sparagio (Trapani province, Sicily) with playback technique between March and April 2011. Superimposing a UTM grid of 1 km mesh on the study area produced cells of 100 hectares. Using a GPS satellite receiver we reached, where possible, the centre of each cell from where the cospecific call was broadcasted. A total of 163 listening stations were implemented. Using software GIS ARCMAP 10.0 (ESRI) presence data were interpolated with vegetational and phytosociological maps (CORINE) to establish rock partridge's suitable area. The range of the rock partridge in the ZPS was calculated to be 9,893 hectares, corresponding to approximately 65% of the ZPS. A total of 29 individuals were counted, corresponding to 5 pairs and 19 calling males.The Sicilian rock partridge population in the ZPS was estimated to be 66 pairs. Density values in the ZPS were lower than those reported for other areas. In the ZPS highest density was observed in Zingaro Reserve, where poaching seems to be less frequent compared to other areas of ZPS and where burning has not been recorded for years. © 2013 CISO - Centro Italiano Studi Ornitologici
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