Search results for "protected area"
showing 10 items of 180 documents
La gestione delle aree protette
2018
Il sistema siciliano delle aree protette, da un punto di vista quantitativo, sembra vantare una vasta superficie tutelata. La media nazionale del territorio tutelato attraverso l’istituzione e la gestione di aree protette corrisponde all’11%, mentre la Regione siciliana riesce a vantare la tutela di una superficie complessiva di 3.100 kmq, che corrisponde a poco più del 12% del suo intero territorio. Il presente articolo analizza non solo le differenti tipologie di aree protette presenti, ma anche il tipo di gestione cui sono sottoposte fornendo un quadro attuale del sistema regionale. The Sicilian system of protected areas, from a quantitative point of view, has a very large surface area. …
Plant invasion risk inside and outside protected areas: Propagule pressure, abiotic and biotic factors definitively matter
2023
Invasive alien species are among the main global drivers of biodiversity loss posing major challenges to nature conservation and to managers of protected areas. The present study applied a methodological framework that combined invasive Species Distribution Models, based on propagule pressure, abiotic and biotic factors for 14 invasive alien plants of Union concern in Italy, with the local interpretable model-agnostic explanation analysis aiming to map, evaluate and analyse the risk of plant invasions across the country, inside and outside the network of protected areas. Using a hierarchical invasive Species Distribution Model, we explored the combined effect of propagule pressure, abiotic …
Non-Indigenous Species (NIS) within Marine Protected Areas (MPAs). The case study of the Aegadian Islands MPA (Sicily, Tyrrhenian Sea) and the Dwejra…
2018
The introduction of non-indigenous species (NIS) has been pointed out as a major threat to biodiversity. NIS may become invasive alien species (IAS) and may cause biodiversity loss and ecosystem service changes. In the Mediterranean Sea, Sicily and surrounding islands, also including a high number of Marine Protected Area (MPAs), as a consequence of their geographic position and the intense maritime traffic, is a region particularly vulnerable and prone to NIS invasions. Since frontiers do not exist in the sea, biological invasions may severely affect MPAs, whose major aim is biodiversity conservation. Among the Sicilian MPAs, the Aegadian Islands MPA report the highest number of NIS (19). M…
Genetic integrity of European wildcats: Variation across biomes mandates geographically tailored conservation strategies
2022
Hybridisation between domestic and wild taxa can pose severe threats to wildlife conservation, and human-induced hybridisation, often linked to species' introductions and habitat degradation, may promote reproductive opportunities between species for which natural interbreeding would be highly unlikely. Using a biome-specific approach, we examine the effects of a suite of ecological drivers on the European wildcat's genetic integrity, while assessing the role played by protected areas in this process. We used genotype data from 1217 putative European wildcat samples from 13 European countries to assess the effects of landcover, disturbance and legal landscape protection on the European wild…
Bryophyte diversity in some Sicilian protected areas
2017
The results of some investigations carried out in two Sicilian protected areas characterized by chalky reliefs are reported. These are the Serre di Ciminna and Monte Conca reserves. The Oriented Nature Reserve of Serre di Ciminna is located in northwestern Sicily, in the province of Palermo. Established in 1997 to protect the interesting karst phenomena in a vast macro-crystalline gypsum outcrop of the Messinian age, the series of "collapse valleys" and a swallowtail, the reserve falls within the Rocche di Ciminna, Site of Community Importance (SIC) (code ITA 020024). It includes some habitats of Community interest: pseudo-steppes with grasses and annuals of the Thero-Brachypodietea (code 6…
The Project “Caulerpa cylindracea in the Egadi Islands”: citizens and scientists working together to monitor marine alien species
2016
The creation of early-warning systems is crucial for preventing and reducing the risk of invasive species introduction. In this respect, the contribution of citizen-scientists (tourists, students, teachers, divers and fishermen) in providing information and data (validated by taxonomic experts) on the occurrence of marine invasive species that would otherwise be impossible to collect, is crucial in understanding the phenomenon of biological invasions. The Citizen Science Project “Caulerpa cylindracea - Egadi Islands”, launched in 2014 and ended in 2016, aimed at creating a database on the spread dynamics and the levels of threat of the invasive green alga Caulerpa cylindracea within the Ega…
La patrimonialización de la naturaleza. Génesis, transformaciones y estado actual
2014
En este artículo realizamos una aproximación general a la sociogénesis de la conservación moderna y pública de la naturaleza. Para ello distinguimos tres etapas . La primera estar á marca da por la búsqueda del anhelado paraíso perdido: a finales del siglo XIX y principios del XX, el paisaje concentrará valores identitarios, patrióticos y nacionalistas . La segunda se caracteriza por la expansión de las áreas protegidas y la multiplicación de instituciones, agentes y figuras proteccionistas en el contexto de una crisis ambienta l creciente. Y la tercera, desplegada en las dos últimas décadas, viene definida por la entrada de un nuevo modelo de conservación participativa a la vez que se prod…
A GIS-MCDM-based road network planning for tourism development and management in Arasbaran forest, Iran.
2019
It is very important for managers to plan a road network that meets all the requirements for tourism development and management. The aim of this study was to evaluate and modify an existing road network for tourism purposes in the Arasbaran protected area. First, the map layers of effective criteria were prepared in GIS and were standardized by a fuzzy logic approach and finally combined considering their relative importance weights obtained through pair-wise comparison technique. A suitability map was then acquired. After that, 14 different scenarios of road network were designed to access the recreational area using PEGGER extension in ArcView. Then, they were evaluated in terms of techni…
Wild brown trout affected by historical mining in the Cévennes national park, France.
2011
8 pages; International audience; In the protected area of the Cévennes National Park (Southern France), 114 wild brown trout (Salmo trutta fario) were captured at six locations affected to different extents by historical mining and metallurgy dating from the Iron Age to Modern Times. Cadmium and lead in trout livers and muscles reflect high sediment contamination, although an age-related effect was also detected for hepatic metal concentrations. Lead isotope signatures confirm exposure to drainage from mining and metallurgical waste. Developmental instability, assessed by fluctuating asymmetry, is significantly correlated with cadmium and lead concentrations in trout tissues, suggesting th…
Quotas regulation is necessary but not sufficient to mitigate the impact of SCUBA diving in a highly visited marine protected area.
2021
Abstract When effectively managed, Marine Protected Areas (MPAs) can produce wide ecosystem benefits that can foster, directly and indirectly, local economies. Tourism is one of the sectors mainly benefited by the effect of conservation. SCUBA diving represents an important tourism activity, especially in the context of MPAs, where it is one of the few activities often fostered rather than limited, for its capacity to integrate environmental and socio-economic sustainability. However, SCUBA diving can also produce negative impacts on the environment when tourism frequentation exceeds a sustainable threshold, these potentially generating negative effects on the sector itself. In this study, …