Search results for "Botanica"
showing 10 items of 1665 documents
First results on the phenotypic analysis of wild and cultivated species of Pyrus in Sicily
2013
Phenotypic analysis of Pyrus in Sicily using a set of 19 characters on 71 accessions belonging to 7 species is here reported. Results show a high level of morphological variation in this genus. Cluster analysis of the morphological characters allows to identify two groups: the first closely related to wild pears and the latter related to P. communis s. l. and P. sicanorum. It is likely to think that many Ethno-Varieties, usually attributed to P. communis, on the contrary are attributable to wild Sicilian pears and belong to indigenous germplasm.
Caratteristiche botaniche.
2009
Umanesimo della pietra/Humanism of the stone
2009
Micropropagation of Endemic Endangered Taxa of the Italian Flora: Adenostyles alpina subsp. macrocephala (Asteraceae), as a Case Study
2023
The conservation of endangered, rare, and endemic plant species is based on in situ and ex situ conservation strategies. When in situ conservation alone is not sufficient to guarantee the survival of the species, ex situ techniques are adopted in support. This study aimed to develop an efficient micropropagation protocol for Adenostyles by evaluating the effect of different plant growth regulators on leaf explants. Adenostyles alpina subsp. macrocephala (Asterace) is a perennial herbaceous plant endemic to Calabria (Southern Italy). The genus Adenostyles includes three species confined to the mountains of the Mediterranean and southern Europe. For callus induction, media supplemented with d…
The ancient irrigation system of the Palermo Plain (Sicily, Italy) as a substitute ecosystem: preliminary investigations on its aquatic flora
2022
Many cities around the world are expanding, including in their perimeters green and blues spaces that could be crucial for the maintaining of biodiversity. Urban waterbodies are generally created to provide other services, but correctly managed they can provide also relevant ecosystem services. The Palermo Plain was characterized, in the past centuries, by several wetlands that were progressively destroyed (or “reclaimed”). The ancient irrigation system, probably set during the Arab domination (IX-XI century A.D.), became a substitute ecosystem able to host a significant biodiversity. Our research focused on the remains of this system, scattered in the relictual green areas of the Plain, an…
I pantani di Anguillara (Calatafimi Segesta, Trapani): dati preliminari sulla biodiversità a supporto della tutela del biotopo
2016
Vengono presentati i risultati preliminari di una indagine multidisciplinare condotta in una zona umida nel territorio di Calatafimi Segesta in provincia di Trapani. L'area è di grande interesse per la presenza di rare specie animali e vegetali, di habitat minacciati tutelati da normative nazionali ed internazionali, ma anche perché è una delle ultime zone umide superstiti dell'entroterra trapanese. L'area ha subito in tempi recenti un pesante disturbo antropico che rischia di portare alla distruzione questo ambiente e il suo biota di pregio. Con questo contributo gli autori intendono supportare la richiesta di adeguata e urgente tutela del sito. Anguillara Ponds (Calatafimi Segesta, Trapan…
Life on islands. 1. Biodiversity in Sicily and surrounding islands. Studies dedicated to Bruno Massa
2020
ANREDERA CORDIFOLIA (TEN.) STEENIS (Basellaceae): STATUS IN ITALIA E SUA ESPANSIONE IN SICILIA OCCIDENTALE
2016
In questa nota si fornisce un quadro aggiornato sui casi di naturalizzazione di Anredera cordifolia in Sicilia e sul suo status invasivo a livello nazionale. Questa xenofita viene inoltre segnalata per la prima volta per le province di Agrigento, Palermo e Trapani.
Functional Redundancy and Complementarities of Seed Dispersal by the Last Neotropical Megafrugivores
2013
Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:28:22Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:42:48Z : No. of bitstreams: 1 2-s2.0-84873586375.pdf: 1508075 bytes, checksum: 7e697f6c67a83195e9b0cb525355980e (MD5) Made available in DSpace on 2014-05-27T11:28:22Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-02-07 Background: Functional redundancy has been debated largely in ecology and conservation, yet we lack detailed empirical studies on the roles of functionally similar species in ecosystem function. Large bodied frugivores may disperse similar plant species and have strong impact on plant recruitment in tropical forests. Th…
Genetic and morphologic diversity of European fan palm (Chamaerops humilisL.) populations from different environments from Sicily
2014
Chamaerops humilis is decreasing in abundance in Mediterranean Europe, which has induced the European community to call for its protection in Special Areas of Conservation. However, information about its genetic and morphological variability, which is crucial to the development of any conservation strategies, is insufficient. The present study aimed to investigate the genetic and morphological variability of C. humilis in Sicily, which was selected as a model because of the high number of dense populations. The relationships between morphological traits and climatic variables were studied to highlight patterns of adaptation to the environment, along with the genetic similarity among the pop…