Search results for "Tale"

Autecology and ex situ growth of Leontopodium nivale subsp. nivale (Asteraceae) from North Pirin marbles (SW Bulgaria)

2018

Kozuharova, E., Panayotov, M. & Spadaro, V.: Autecology and ex situ growth of Leontopodium nivale subsp. nivale (Asteraceae) from North Pirin marbles (SW Bulgaria). — Fl. Medit. 28: 187-206. 2018. — ISSN: 1120-4052 printed, 2240-4538 online. Leontopodium nivale subsp. nivale is a local and disjunct endemic of the central Apennines in Italy and the Pirin Mountains in Bulgaria. The aim of this study is to investigate in situ microhabitat specifics and ex situ ontogenesis regarding the possible future cultivation and to evaluate hazards for wild populations in conditions of human impact and climate change. Leontopodium nivale subsp. nivale is stenobiont which is difficult to grow ex situ and t…

Inflorescence-visiting insects of a functionally dioecious wild grapevine

2018

The wild grapevine [Vitis vinifera L. subsp. sylvestris (Gmelin) Hegi] is the Eurasian dioecious ancestral form of mostly monoecious domesticated cultivars (Vitis vinifera subsp. vinifera). There are different hypotheses about grapevine pollination, varying from insect to wind pollination to spontaneous self-pollination. The aim of this paper is to update our knowledge on the biology of the wild grapevine by studying the insects visiting their inflorescences. During the fieldworks, floral visitors were observed, captured and identified. The most frequent insects visiting both sexes of wild grapevine were beetles (55%) followed by bees (45%). The present study shows that although in vineyard…

Interventi di conservazione degli alberi monumentali in Sicilia

2009

Gli alberi monumentali, elementi fra i più appariscenti del mondo vegetale, possono essere considerati beni unici ed irripetibili. Essi rappresentano un peculiare aspetto della biodiversità che deve essere tutelato e valorizzato alla stessa stregua dei monumenti in pietra, dei centri storici, delle grandi strutture architettoniche (Schicchi & Raimondo, 1999). Negli ultimi anni in Sicilia, come in altre regioni italiane, le iniziative volte alla conoscenza di questo particolare patrimonio culturale si sono intensificate, grazie alla sensibilità di diversi enti territoriali (comuni, province, regioni, parchi naturali). Per questa stessa regione, Schicchi & Raimondo (2005, 2006, 2007) e Schicc…

Seed germination of endemic species from Sicily

2009

Battisti C. & Guidi A., 2012. Gli uccelli nidificanti della Riserva Naturale di Monte Catillo. Check-list, distribuzione locale e status di conservaz…

2013

La conservazione delle specie di interesse forestale nella Banca del germoplasma dell’Orto Botanico di Catania.

2008

El pobre de la familia

2001

Covering the Gap for an Effective Energy and Environmental Design of Green Roofs: Contributions from Experimental and Modelling Researches

2021

AbstractGreen roofs are components of the building envelope that have become increasingly popular in urban contexts because other than providing numerous environmental benefits they are also capable of reducing building energy consumption, especially in summer. However, despite all these advantages, green roofs are still affected by some limitations. Specifically, there are some gaps affecting the energy modelling consisting in the absence of a proper database, information (growth stage, leaf area index, and coverage ratio) relative to the different green roof plant species, which technicians could use in case of lack of actual field data to perform energy analysis of buildings equipped wit…

Definition and Assessment of a BAC Factor for Estimating Electrical Consumption of Outdoor Lighting

2018

The BAC factors method was introduced by the international Standard EN 15232 for a rough evaluation of energy savings in buildings obtained thanks to automation. The above standard considers the building's services such as heating, cooling, ventilation and lighting and takes into account automation on the basis of assumed usage profile for the related technical installations. However, the standard does not refer specifically to the automation of outdoor lighting systems such as those serving gardens, entrance walkways and passages around the building and supplied by it. In this paper, the authors propose a method for evaluation an outdoor BAC factor for lighting system considering various s…

Photovoltaic electricity scenario analysis in urban contests: an Italian case study

2012

Abstract This paper shows a methodology for the assessment of the photovoltaic potential in urban areas using Google Earth™ tool that provides either satellite images of the roofs of buildings or their number of floors by means of the Street View function. The applicability of the methodology has been tested on a selected urban area of the city of Palermo in the South of Italy. After classifying roofs according to the shape, orientation and pitch of buildings with different morphologies, the share of energy generated by the installable PV systems was evaluated with regard to the number of floors. Moreover the coverage of the electricity demand was investigated on the basis of the consumptio…