Search results for "WETLANDS"
showing 10 items of 73 documents
The use of constructed wetlands for the treatment and reuse of urban wastewater for the irrigation of two warm-season turfgrass species under Mediter…
2017
Constructed wetlands (CWs) represent low-cost technology for the treatment and reuse of wastewater in urban areas. This study aimed to evaluate the pollutant removal efficiency of a CW system and to assess the effects of irrigation using treated urban wastewater on soil and on two warm-season turf species. The research was carried out in Sicily (Italy) on a pilot-scale horizontal subsurface flow system which was fed with treated urban wastewater following secondary treatment from an activated-sludge wastewater treatment plant. The pilot system was located in an open urban park and comprised two separate parallel planted units. Experimental fields of Cynodon dactylon (L.) Pers. and Paspalum …
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…
The temporary wetland complex of Anguillara and its key role for the botanical heritage of western Sicily
2016
Temporary wetlands are endangered throughout the entire Mediterranean area (1). Contrary to the permanent wetlands, that (usually) cover larger surfaces and are now protected after a long period of siege and ‘reclamation’ attempts, temporary ponds and wetlands are small, scattered areas still under pressure and threatened by human activities. This fact represents a serious threat for biodiversity, since many species only occur in these peculiar sites. To secure their protection Mediterranean temporary ponds are listed as “priority habitat” in the EU “Habitats” Directive (92/43/EEC). The temporary ponds of Anguillara, located near Calatafimi in Western Sicily, host a huge amount of rare plan…
Prospetto delle piante vascolari native di potenziale impiego negli interventi di fitodepurazione in Sicilia
2013
Checklist of the native vascular plants of potential use in phytoremediation in Sicily. A list of native vascular plants suitable for phytoremediation in Sicily is presented here. It includes 192 specific and intraspecific taxa, each provided with the relevantbiological form and subform, chorotype, and macrophyte classification. An index based on the aesthetic value of each taxon is also proposed.
Hydrological drivers of wetland vegetational biodiversity patterns within Everglades National Park, Florida
2009
The influence of hydrological dynamics on vegetational biodiversity and structuring of wetland environments is of growing interest as wetlands are modified by human alteration and the increasing threat from climate change. Hydrology has long been considered a driving force in shaping wetland communities as the frequency of inundation along with the duration and depth of flooding are key determinants of wetland structure. We attempt to link hydrological dynamics with vegetational distribution and species richness across Everglades National Park(ENP) using two publicly available datasets. The first, the Everglades Depth Estimation Network (EDEN),is a water-surface model which determines the m…
Segnalazioni floristiche e vegetazionali per le zone umide costiere del territorio di Petrosino (Sicilia occidentale)
2017
Si riportano popolazioni inedite di alcune specie di angiosperme rare per il territorio siciliano, localizzate nelle aree umide costiere del territorio di Petrosino (provincia di Trapani), attualmente tutelate come sito della rete europea “Natura 2000” (codice ITA010006), e come zona “Ramsar”: si tratta nel dettaglio di Apium graveolens, Briza minor, Carex extensa, Cladium mariscus, Euphorbia hirsuta, Ipomoea sagittata, Ruppia drepanensis, Sonchus maritimus. Per ogni specie viene brevemente illustrata l’importanza dei nuovi reperti nel contesto regionale. Viene inoltre segnalata la presenza di un habitat prioritario non censito nel piano di gestione del sito Natura 2000, ossia “7210*: Palud…
Evaluation of carbamazepine uptake and metabolization by Typha spp., a plant with potential use in phytotreatment
2011
Abstract Phytoremediation technologies such as constructed wetlands have shown higher efficiencies in removal of pharmaceuticals from wastewaters than conventional wastewater treatment processes, and plants seem to have an important role in the removal of some of those compounds. In this context, a study was conducted to assess tolerance, uptake, and metabolism of the epilepsy drug, carbamazepine, by the macrophyte Typha spp. This evaluation was conducted in hydroponic solutions with 0.5–2.0 mg/L of this pharmaceutical for a maximum period of 21 days. The removal of carbamazepine from nutrient solutions by the plants reached values of 82% of the initial contents. Furthermore, a metabolite (…
Dinosaur bonebed amber from an original swamp forest soil
2021
AbstractDinosaur bonebeds with amber content, yet scarce, offer a superior wealth and quality of data on ancient terrestrial ecosystems. However, the preserved palaeodiversity and/or taphonomic characteristics of these exceptional localities had hitherto limited their palaeobiological potential. Here we describe the amber from the Lower Cretaceous dinosaur bonebed of Ariño (Teruel, Spain) using a multidisciplinary approach. Amber is found in both a root layer with amber strictly in situ and a litter layer namely composed of aerial pieces unusually rich in bioinclusions, encompassing 11 insect orders, arachnids, and a few plant and vertebrate remains, including a feather. Additional palaeont…
NOTE SUI LIMICOLI SVERNANTI NELLE ZONE UMIDE COSTIERE DELLA PROVINCIA DI TRAPANI
2016
Notes on wintering waders in the coastal humid zones of province of Trapani (Sicily). The coastal wetlands of Trapani still are of great national importance for migratory and wintering waders despite the dramatic reduction occurred in the last hundred years. During this research the author carried out surveys in coastal wetlands from Trapani to Mazara del Vallo, in order to estimate qualitative and accurate quantitative values of wintering waders. The census includes four winters, from 2012-13 to 2015-16 and was carried out in the months of December and January. Noteworthy is the wintering for three consecutive years of the Terek Sandpiper Xenus cinereus, the wintering of Oystercatcher Haem…