Search results for "Conservation"

Valorizzazione e gestione delle informazioni

2017

Il volume indaga sulle dialettiche tra valorizzazione e conservazione materiale delle preesistenze, additando utili scenari di ricerca da percorrere congiuntamente, anche con l'ausilio della didattica, perchè le azioni di valorizzazione 'tangibili' non rechino nocumento alle azioni di tutela preordinate. Il volume illustra inoltre casi concreti di best practices (Tecnologie ICT, Data-base, Gis, ricostruzioni virtuali, website ecc..., ). I contributi presenti nel volume confermano la consapevolezza che questa nuova s da che ci perviene dall’esterno, possa divenire per noi, attori del restauro architettonico, un ulteriore spazio di ricerca, anche stimolante per una nuova visione del patrimoni…

Estimating QCD uncertainties in Monte Carlo event generators for gamma-ray dark matter searches

2018

Motivated by the recent galactic center gamma-ray excess identified in the Fermi-LAT data, we perform a detailed study of QCD fragmentation uncertainties in the modeling of the energy spectra of gamma-rays from Dark-Matter (DM) annihilation. When Dark-Matter particles annihilate to coloured final states, either directly or via decays such as $W^{(*)}\to q\bar{q}'$, photons are produced from a complex sequence of shower, hadronisation and hadron decays. In phenomenological studies, their energy spectra are typically computed using Monte Carlo event generators. These results have however intrinsic uncertainties due to the specific model used and the choice of model parameters, which are diffi…

Integration of high resolution spatial and spectral data acquisition systems to provide complementary datasets for cultural heritage applications

2010

International audience; Modern optical measuring systems are able to record objects with high spatial and spectral precision. The acquisition of spatial data is possible with resolutions of a few hundredths of a millimeter using active projection-based camera systems, while spectral data can be obtained using filter-based multispectral camera systems that can capture surface spectral reflectance with high spatial resolution. We present a methodology for combining data from these two discrete optical measuring systems by registering their individual measurements into a common geometrical frame. Furthermore, the potential for its application as a tool for the non-invasive monitoring of painti…

Datapackage for national high-resolution conservation prioritisation of boreal forests

2023

This data package concerns the following work: Ninni Mikkonen, Niko Leikola, Joona Lehtomäki, Panu Halme, Atte Moilanen, National high-resolution conservation prioritisation of boreal forests, Forest Ecology and Management, Volume 541, 2023, 121079 ISSN 0378-1127 https://doi.org/10.1016/j.foreco.2023.121079 The overall objective of the work was to develop spatial prioritizations that can assist the forest conservation programme METSO (The Finnish Government 2008; 2014) to make well-informed decisions about acquisition of forests for protection. The results are also aimed to be useful for other actors interested in forest conservation or biodiversity friendly forest management. We focused th…

Long-term impacts of increased timber harvests on ecosystem services and biodiversity : A scenario study based on national forest inventory data

2020

The transition to a climate-neutral economy is expected to increase future timber demands and endanger the multifunctionality of forests. National scenario analyses are needed to determine long-term forest management impacts and support forest policy making in defining guidelines for the sustainable provision of forests’ ecosystem services and biodiversity (ESB). Using national forestry inventory data, the forest management model MASSIMO and a model to estimate harvesting costs, we simulated forest development in Switzerland under five politically relevant timber harvesting scenarios until 2106 (business as usual and four increased timber mobilisation scenarios). Model results were analysed…

Opposing health effects of hybridization for conservation

2021

The continuing decline of many natural plant and animal populations emphasizes the importance of conservation strategies. Hybridization as a management tool has proven successful in introducing gene flow to small, inbred populations, but can be also associated with health risks. For example, hybridization can change susceptibility to infection in either direction due to heterosis (hybrid vigor) and outbreeding depression, but such health effects have rarely been considered in the genetic management of populations. Here, we investigated the effects of experimental outcrossing between the critically endangered Saimaa landlocked salmon (Salmo salar m. sebago) and the genetically more diverse A…

A mate to die for? A model of conditional monogyny in cannibalistic spiders.

2012

Monogynous males in various species actively limit themselves to mating with a single female in their lifetime. Whereas previous models have considered monogyny as an obligate mating strategy, here we explore the potential of monogyny to evolve as a context-specific (conditional) behavior. Using a state-dependent dynamic game model based on the biology of the cannibalistic spider Argiope bruennichi, we confirm that conditional monogyny can evolve under broad conditions, including an even sex ratio. We predict that males should make a terminal investment when mating with large, virgin females, especially if population density is low and the encounter occurs late in the season. We encourage e…

Ecosystem rescue : when protection is not enough

2015

More than 30 years of studies and conservation on lesser kestrel in Europe: where do we will go from there?

2021

Our ecological knowledge on the lesser kestrel is today wide, but the reasons for the research are many and varied, leading to an unequal representation and coverage of the issues addressed, which in addition can be more or less directly related to the conservation of the species. For these reasons, I decided to review all the work done so far, to identify the strengths and weaknesses of research applied to the conservation of this species.

Informational interactions and the future of cities

1998

Present-day city growth is chiefly the result of new tertiary activities such as financial and producer services, R&D, or business administration. It seems that these activities need to be more spatially concentrated than traditional manufacturing activities. These new trends affect both the structure of cities and the structure of city systems. The specific nature of the new activities concentrated in city centers makes them information intensive. These activities consume human capital, knowledge and hightech capital, which are all rapidly changing inputs; they are based on complex decisionmakingprocesses; this renders them highly information-dependent. Inasmuch as these activities are the…