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The authors report new records of Bombyliidae (Diptera) for Lampedusa Island discovered during fi... more The authors report new records of Bombyliidae (Diptera) for Lampedusa Island discovered during field investigations carried out for a broader research project in the island. Data are updated to July 2010. Four species of Bombyliidae new for Lampedusa have been found, one of which has not been recorded for Sicilan dipterofauna. The present data bring to 60 the species of Diptera reported for Lampedusa Island
Diptera of Lampedusa are poorly known, and the only published data are those of VENTURI (1960) an... more Diptera of Lampedusa are poorly known, and the only published data are those of VENTURI (1960) and PISCIOTTA et al. (2008). In the present paper the authors report new records of Syrphi- dae (Diptera) for Lampedusa island discovered during field investigations carried out for a broader research project in the island. Data are updated to November 2009. Eleven species of Syrphidae new for Lampedusa have been found of which one is new for the Sicilian fauna.
Here we present the update of the previous list of syrphid species of “Bosco della Fontana” (Birt... more Here we present the update of the previous list of syrphid species of “Bosco della Fontana” (Birtele et al. 2002), which brings the total number to 76. Moreover, for clarification we add that Paragus pecchiolii (Rondani, 1857) is the current name for P. majoranae (Rondani, 1857) (Sommaggio 2002). All the material is preserved in the collection of the “Centro Nazionale per lo Studio e la Conservazione della Biodiversità Forestale” (Marmirolo, Mantua). The present nomenclature follows Speight (2004).
Nel 2006 il Centro Nazionale per lo Studio e la Conservazione della Biodiversità Forestale, “Bosc... more Nel 2006 il Centro Nazionale per lo Studio e la Conservazione della Biodiversità Forestale, “Bosco Fontana” di Verona ha stipulato con ERSAF una convenzione per il monitoraggio dell’evoluzione biologico-forestale della “Foresta Carpaneta” in provincia di Mantova. Materiali e metodi Analisi della dinamica forestale L’interpretazione della dinamica di una foresta è il fondamento di una gestione aderente alla naturalità. La conoscenza dei parametri strutturali costituisce la base indispensabile per la caratterizzazione di qualsiasi studio faunistico, vegetazionale, idrologico e pedologico. Il rilievo “nidificato” di Koop, permette di analizzare strutturalmente una foresta e di monitorarne l’evoluzione a lungo termine. Studio faunistico I coleotteri Carabidae scelti per lo studio faunistico sono bioindicatori spesso utilizzati per valutazioni sullo stato di conservazione degli ecosistemi. Per il monitoraggio sono state scelte le trappole a caduta. Risultati e discussione Analisi della d...
Mongiana Obiettivo generale Lo scopo principale del progetto Life ManFor CB.D "Managing fore... more Mongiana Obiettivo generale Lo scopo principale del progetto Life ManFor CB.D "Managing forests for multiple purposes: carbon, biodiversity and socio-economic wellbeing" (LIFE09 ENV/IT/000078 – www.manfor.eu) è quello di testare e verificare l'efficacia di diverse opzioni di gestione forestale multifunzionale (produzione, protezione, biodiversità, ecc) fornendo dati, orientamento ed indicazioni di buone pratiche forestali Nei siti selezionati, che includono anche aree appartenenti alla rete Natura 2000 (Fig.1), saranno valutate le pratiche di gestione forestale tradizionali e programmate, attuate e testate opzioni di gestione innovative. Queste tesi innovative sono ispirate e conformi ai principi del Sustainable Forest Management (SFM) ed i Ioro obiettivi sono compatibili con gli obiettivi conservazionistici della rete Natura 2000. Al fine della tutela della biodiversità nelle aree sottoposte ad interventi innovativi sono stati implementati accorgimenti gestionali per ...
European Journal of Entomology, 2013
In this study we analyzed the inter-specific relationships in assemblages of syrphids at a site i... more In this study we analyzed the inter-specific relationships in assemblages of syrphids at a site in northern Italy in order to determine whether there are patterns in diurnal co-occurrence. We adopted a null model approach and calculated two co-occurrence metrics, the C-score and variance ratio (V-ratio), both for the total catch and of the morning (8:00-13:00) and afternoon (13:00-18:00) catches separately, and for males and females. We recorded discordant species richness, abundance and co-occurrence patterns in the samples collected. Higher species richness and abundance were recorded in the morning, when the assemblage had an aggregated structure, which agrees with previous findings on communities of invertebrate primary consumers. A segregated pattern of co-occurrence was recorded in the afternoon, when fewer species and individuals were collected. The pattern recorded is likely to be caused by a number of factors, such as a greater availability of food in the morning, prevalence of hot and dry conditions in the early afternoon, which are unfavourable for hoverflies, and possibly competition with other pollinators. Our results indicate that restricting community studies to a particular time of day will result in certain species and/or species interactions not being recorded.
Ecological Research, 2012
There is growing interest in the vertical stratification of forest biodiversity, but little is kn... more There is growing interest in the vertical stratification of forest biodiversity, but little is known about this aspect for Syrphidae living in forests. For this study, seven Malaise traps were suspended in the canopy and seven were placed on the ground, in a lowland forest in northern Italy. Altogether, 868 specimens of Syrphidae were collected; 229 from the canopy and 639 from the ground, comprising a total of 53 species. Three species [(Ceriana conopsoides (Linnaeus), Eupeodes corollae (Fabricius), Psilota atra Falle´n)] were associated significantly with the canopy layer, and seven species [(Brachypalpoides lentus (Meigen), Chalcosyrphus nemorum (Fabricius), Chrysotoxum cautum (Harris), Eumerus flavitarsis Zetterstedt, Helophilus pendulus (Linnaeus), Myathropa florea (Linnaeus) and Xylota segnis (Linnaeus)] with the ground level. The sex-ratio of the Syrphidae differed significantly between the two layers, as females were caught mainly at ground level, while males were caught preferentially in the canopy. Species with saprophagous and saproxylic larvae were caught more commonly at ground level. Species richness declined from April to November but vertical stratification was constant for most of the season. Multivariate analyses showed that two factors were correlated significantly with the community composition of Syrphidae: height of Malaise trap and estimated age of dominant trees.
A better understanding of the effects of air pollution and other stress factors on forests requir... more A better understanding of the effects of air pollution and other stress factors on forests requires long-term investigations focusing on ecosystem complexity and diversity. The EU regulation "Forest Focus" implemented ground vegetation assessment leading to the estimation of plant diversity. In this paper, data from the permanent monitoring plots (PMPs) of the CONECOFOR network (1999)(2000)(2001)(2002)(2003) were used to quantify the species richness and vascular plant diversity. The Shannon indices of diversity (based on mean cover and frequency of the species), mean number of species*100 m -2 and their changes in the examined time frame were used to summarize several ecological-structural characteristics of the investigated forest ecosystems. The data presented were based on species composition of vascular plants assessed inside each permanent plot, and can be used as a reference model (baseline) to assess further changes in plant diversity components.
The authors report new records of Bombyliidae (Diptera) for Lampedusa Island discovered during fi... more The authors report new records of Bombyliidae (Diptera) for Lampedusa Island discovered during field investigations carried out for a broader research project in the island. Data are updated to July 2010. Four species of Bombyliidae new for Lampedusa have been found, one of which has not been recorded for Sicilan dipterofauna. The present data bring to 60 the species of Diptera reported for Lampedusa Island
Diptera of Lampedusa are poorly known, and the only published data are those of VENTURI (1960) an... more Diptera of Lampedusa are poorly known, and the only published data are those of VENTURI (1960) and PISCIOTTA et al. (2008). In the present paper the authors report new records of Syrphi- dae (Diptera) for Lampedusa island discovered during field investigations carried out for a broader research project in the island. Data are updated to November 2009. Eleven species of Syrphidae new for Lampedusa have been found of which one is new for the Sicilian fauna.
Here we present the update of the previous list of syrphid species of “Bosco della Fontana” (Birt... more Here we present the update of the previous list of syrphid species of “Bosco della Fontana” (Birtele et al. 2002), which brings the total number to 76. Moreover, for clarification we add that Paragus pecchiolii (Rondani, 1857) is the current name for P. majoranae (Rondani, 1857) (Sommaggio 2002). All the material is preserved in the collection of the “Centro Nazionale per lo Studio e la Conservazione della Biodiversità Forestale” (Marmirolo, Mantua). The present nomenclature follows Speight (2004).
Nel 2006 il Centro Nazionale per lo Studio e la Conservazione della Biodiversità Forestale, “Bosc... more Nel 2006 il Centro Nazionale per lo Studio e la Conservazione della Biodiversità Forestale, “Bosco Fontana” di Verona ha stipulato con ERSAF una convenzione per il monitoraggio dell’evoluzione biologico-forestale della “Foresta Carpaneta” in provincia di Mantova. Materiali e metodi Analisi della dinamica forestale L’interpretazione della dinamica di una foresta è il fondamento di una gestione aderente alla naturalità. La conoscenza dei parametri strutturali costituisce la base indispensabile per la caratterizzazione di qualsiasi studio faunistico, vegetazionale, idrologico e pedologico. Il rilievo “nidificato” di Koop, permette di analizzare strutturalmente una foresta e di monitorarne l’evoluzione a lungo termine. Studio faunistico I coleotteri Carabidae scelti per lo studio faunistico sono bioindicatori spesso utilizzati per valutazioni sullo stato di conservazione degli ecosistemi. Per il monitoraggio sono state scelte le trappole a caduta. Risultati e discussione Analisi della d...
Mongiana Obiettivo generale Lo scopo principale del progetto Life ManFor CB.D "Managing fore... more Mongiana Obiettivo generale Lo scopo principale del progetto Life ManFor CB.D "Managing forests for multiple purposes: carbon, biodiversity and socio-economic wellbeing" (LIFE09 ENV/IT/000078 – www.manfor.eu) è quello di testare e verificare l'efficacia di diverse opzioni di gestione forestale multifunzionale (produzione, protezione, biodiversità, ecc) fornendo dati, orientamento ed indicazioni di buone pratiche forestali Nei siti selezionati, che includono anche aree appartenenti alla rete Natura 2000 (Fig.1), saranno valutate le pratiche di gestione forestale tradizionali e programmate, attuate e testate opzioni di gestione innovative. Queste tesi innovative sono ispirate e conformi ai principi del Sustainable Forest Management (SFM) ed i Ioro obiettivi sono compatibili con gli obiettivi conservazionistici della rete Natura 2000. Al fine della tutela della biodiversità nelle aree sottoposte ad interventi innovativi sono stati implementati accorgimenti gestionali per ...
European Journal of Entomology, 2013
In this study we analyzed the inter-specific relationships in assemblages of syrphids at a site i... more In this study we analyzed the inter-specific relationships in assemblages of syrphids at a site in northern Italy in order to determine whether there are patterns in diurnal co-occurrence. We adopted a null model approach and calculated two co-occurrence metrics, the C-score and variance ratio (V-ratio), both for the total catch and of the morning (8:00-13:00) and afternoon (13:00-18:00) catches separately, and for males and females. We recorded discordant species richness, abundance and co-occurrence patterns in the samples collected. Higher species richness and abundance were recorded in the morning, when the assemblage had an aggregated structure, which agrees with previous findings on communities of invertebrate primary consumers. A segregated pattern of co-occurrence was recorded in the afternoon, when fewer species and individuals were collected. The pattern recorded is likely to be caused by a number of factors, such as a greater availability of food in the morning, prevalence of hot and dry conditions in the early afternoon, which are unfavourable for hoverflies, and possibly competition with other pollinators. Our results indicate that restricting community studies to a particular time of day will result in certain species and/or species interactions not being recorded.
Ecological Research, 2012
There is growing interest in the vertical stratification of forest biodiversity, but little is kn... more There is growing interest in the vertical stratification of forest biodiversity, but little is known about this aspect for Syrphidae living in forests. For this study, seven Malaise traps were suspended in the canopy and seven were placed on the ground, in a lowland forest in northern Italy. Altogether, 868 specimens of Syrphidae were collected; 229 from the canopy and 639 from the ground, comprising a total of 53 species. Three species [(Ceriana conopsoides (Linnaeus), Eupeodes corollae (Fabricius), Psilota atra Falle´n)] were associated significantly with the canopy layer, and seven species [(Brachypalpoides lentus (Meigen), Chalcosyrphus nemorum (Fabricius), Chrysotoxum cautum (Harris), Eumerus flavitarsis Zetterstedt, Helophilus pendulus (Linnaeus), Myathropa florea (Linnaeus) and Xylota segnis (Linnaeus)] with the ground level. The sex-ratio of the Syrphidae differed significantly between the two layers, as females were caught mainly at ground level, while males were caught preferentially in the canopy. Species with saprophagous and saproxylic larvae were caught more commonly at ground level. Species richness declined from April to November but vertical stratification was constant for most of the season. Multivariate analyses showed that two factors were correlated significantly with the community composition of Syrphidae: height of Malaise trap and estimated age of dominant trees.
A better understanding of the effects of air pollution and other stress factors on forests requir... more A better understanding of the effects of air pollution and other stress factors on forests requires long-term investigations focusing on ecosystem complexity and diversity. The EU regulation "Forest Focus" implemented ground vegetation assessment leading to the estimation of plant diversity. In this paper, data from the permanent monitoring plots (PMPs) of the CONECOFOR network (1999)(2000)(2001)(2002)(2003) were used to quantify the species richness and vascular plant diversity. The Shannon indices of diversity (based on mean cover and frequency of the species), mean number of species*100 m -2 and their changes in the examined time frame were used to summarize several ecological-structural characteristics of the investigated forest ecosystems. The data presented were based on species composition of vascular plants assessed inside each permanent plot, and can be used as a reference model (baseline) to assess further changes in plant diversity components.