Search results for "Protected area"

Trace elements and stable isotopes in penguin chicks and eggs: A baseline for monitoring the Ross Sea MPA and trophic transfer studies.

2021

Multi-tissue trace elements (TEs), C, N concentrations and stable isotopes (δ13C, δ15N) of chick carcasses and eggs of Adelie and Emperor penguins were studied to i) provide reference data before the recent institution of the Ross Sea Marine Protected Area (Antarctica), and ii) provide conversion factors that allow estimating C, N, δ13C and δ15N in edible tissues from non-edible ones, thus improving the use of stable isotopes in contamination and trophic transfer studies. Higher concentrations of As, Cd, Cr, Cu, Hg, Mn and Pb were found in chick carcasses than in eggs, suggesting increasing contamination in recent decades and high toxicity risks for penguin consumers. Isotopic conversion fa…

Different densities of the limpet populations in a Sicilian MPA: do enforcement or accessibility matter?

2009

PESCA SOSTENIBILE E CONSERVAZIONE DELLA NATURA IN SICILIA

2014

Fish-seastar facilitation leads to algal forest restoration on protected rocky reefs

2015

AbstractAlthough protected areas can lead to recovery of overharvested species, it is much less clear whether the return of certain predator species or a diversity of predator species can lead to re-establishment of important top-down forces that regulate whole ecosystems. Here we report that the algal recovery in a Mediterranean Marine Protected Area did not derive from the increase in the traditional strong predators, but rather from the establishment of a previously unknown interaction between the thermophilic fish Thalassoma pavo and the seastar Marthasterias glacialis. The interaction resulted in elevated predation rates on sea urchins responsible for algal overgrazing. Manipulative ex…

First record of the invasive crab Percnon gibbesi (H. Milne Edwards) at Pianosa Island: the second goal reached by the innovative Marine Citizen Scie…

2020

This study represents the second scientific goal reached by the operating Project Team and the first record of the cryptogenic species Pec gbbe H Milne Edwards, at Pianosa Island October During a Scuba survey, almost specimens of P gbbe were recorded up to a depth of m and analyzed, according to some indicators such as health state, sex, morphology, and parameters such as temperature, covering of algal species, type of rocky bottom This tropical Atlantic grapsid crab is considered as the most invasive decapod currently expanding its distribution in the Mediterranean Sea.

Valutazione della vulnerabilità alla frequentazione subacquea di grotte sommerse: applicazione in tre AMP italiane

2011

Stable isotopes and trophic positions of littoral fishes from a Mediterranean Marine Protected Area

2008

Stable isotope analyses were employed to explore feeding and foraging habitats and trophic levels of littoral fishes in a western Mediterranean Marine Protected Area (Egadi Islands, Sicily, Italy). Carbon and nitrogen stable isotope ratios were measured in primary producers, invertebrates and fishes collected in December 2001 and January 2002. Fishes of the littoral region of the Egadi Islands had isotopic signatures that fell into a wider range for δ13C (about 6‰) than for δ15N (about 3‰). Carbon isotope ratios were consistent with a food web based on mixed sources and two trophic pathways leading to different fish species. Differences in the isotopic composition between islands were highe…

Stakeholders' Perceptions about Fire Impacts on Lithuanian Protected Areas

2016

The aim of this work is to study Lithuanian stakeholders' perceptions of fire impacts in protected areas. For this study, the stakeholders consisted of foresters, ecologists and farmers. A clear understanding of the opinions of stakeholders about fire effects on environmental, social and economic aspects of Lithuanian protected areas will allow an assessment of the stakeholders' reaction to fire policy, including government measures towards fire prevention, suppression and application of prescribed fire to landscape management. The results showed that stakeholders in general think that fire is not a threat to Lithuania and to the ecological processes in the protected areas. However, they ag…

A Territorial Contradiction

2014

Spatial planning and environmental restoration are essential corollaries to the management of protected natural areas; however, without a sound awareness of the evolutionary consistency of biocoenoses, the harmonious integration between human activities and ecosystem preservation remains an unattainable utopia. The theorisation of a balanced welfare, inspired by the universal tendency of ecosystems to reach a steady state, has to go along with the defection from any economic greed. © Springer International Publishing Switzerland 2015.

Carbon Footprint Analysis: Towards a Projects Evaluation Model for Promoting Sustainable Development

2013

Abstract Climate change and global warming are internationally recognized as current issues, driving negative effects on humanity, and being mainly caused by GHG emissions generated both from industrial activities, and from other anthropogenic activities. Restoring the ecological balance requires urgent action to reduce GHG emissions. In this respect, the European Union has set the target to reduce the GHG emissions by 20% until 2020, compared to 1990 level. This paper presents a methodology to develop a model for carbon footprint calculation, for assessing and reducing GHG emissions generated by European funds financed projects.