Search results for "forest biodiversity"
showing 10 items of 12 documents
Forest Naturalness in Northern Europe: Perspectives on Processes, Structures and Species Diversity
2011
Saving the remaining natural forests in northern Europe has been one of the main goals to halt the ongoing decline of forest biodiversity. To facilitate the recognition, mapping and efficient conservation of natural forests, there is an urgent need for a general formulation, based on ecological patterns and processes, of the concept of âforest naturalnessâ. However, complexity, structural idiosyncracy and dynamical features of unmanaged forest ecosystems at various spatio-temporal scales pose major challenges for such a formulation. The definitions hitherto used for the concept of forest naturalness can be fruitfully grouped into three dimensions: 1) structure-based concepts of natural …
Conservation of forest biodiversity using temporal conservation contracts
2012
Abstract Temporal conservation contracts are used to protect biodiversity in privately owned lands worldwide. We examine how stand characteristics and habitat requirements of target species affect the contract length in a boreal forest context. We develop an integrated optimization model and apply the model with data on endangered species occurring in spruce forests in Finland. The results suggest that a cost-effective conservation policy for protecting privately owned forest land involves both short- and long-term contracts between landowners and environmental agencies. The higher the conservation objective, the more intensively long-term contracts should be assigned. Managed stands should…
Protest beliefs in contingent valuation: Explaining their motivation
2006
Abstract The definition and treatment of protest responses in contingent valuation (CV) can have a significant influence on the estimated values of the good in question if these responses are censored. In order to understand how protest responses are motivated, in a CV about forest biodiversity in Germany we used an item battery to identify respondents' protest beliefs. The items were measured for all respondents, irrespective of their willingness to pay (WTP) in principle. Then, a scale based on these beliefs is taken as a dependent variable of regression analyses. In addition to environmental concern we used norms, the warm glow of giving and dilemma concern as further explanatory variabl…
The contribution of forest restoration to the conservation of woody endangered species in Sicily
2017
Sicilian forest ecosystems are, in general, numerically poor in terms of their floristic composition. As many studies on Sicilian dendroflora have highlighted, such poorness is not intrinsic to forest formations, but it is due to the millenary human pressures. Repeated passage of fire, continuous wood usage and reforestations by single or few species dra- matically reduced the plant biodiversity of Sicilian forest ecosystems, often suffering of monodominance. The Sicilian dendroflora includes several endangered species, such as Abies nebrodensis, Betula aetnensis, Celtis tournefortii subsp. asperrima and subsp. aetnensis, as the wild pears, which in Sicily are represented by 4 endemic speci…
Forest types for biodiversity assessment at regional level: the case study of Sicily (Italy)
2007
Within Europe the question of plant coenosis is attracting growing interest. The quality and quantity of collected information on forest resources at a global level largely depends on the capacity to collect and analyse data at national and sub-national scale in a way compatible with those at global or continental levels. In Italy the acceptance of all the international agreements and protocols on the protection of the environment and management of natural resources, requires a standardization of collected information and statistics, with the aim to produce homogeneous and integrative data at global level. This need is reflected in the following points: (1) the adoption of a classification …
A Multi-Criteria Decision Support System for Strategic Planning at the Swiss Forest Enterprise Level: Coping With Climate Change and Shifting Demands…
2021
Sustainable forest management plays a key role for forest biodiversity and the provisioning of ecosystem services (BES), including the important service of carbon sequestration for climate change mitigation. Forest managers, however, find themselves in the increasingly complex planning situation to balance the often conflicting demands in BES. To cope with this situation, a prototype of a decision support system (DSS) for strategic (long-term) planning at the forest enterprise level was developed in the present project. The DSS was applied at three case study enterprises (CSEs) in Northern Switzerland, two lowland and one higher-elevation enterprise, for a 50-year time horizon (2010 to 2060…
The Protected Species of Lepidoptera in the Oak Forest "Dumbrava Sibiului", Romania
2011
This paper presents the results of research on Lepidoptera fauna of protected forest located Dumbrava Sibiu, near Sibiu city . The theme of the work is included in a study of forest biodiversity and Sibiu Lepidoptera "Dumbrava Sibiului" is part of a school project postdoctoral lasted several months in the forest.
 The first data on Lepidoptera fauna of the forest were reported by Daniel Czekelius collection and analysis covers a total of 45 species collected from the surrounding forest. An important contribution collections were then collected in the Transylvanian Saxons in 1009 and until around 1960 years and have made such an important contribution to knowledge of this group of insec…
Traditional use of wood in Sicily
2020
The results of a multidisciplinary survey on the use of wood in Sicily are presented here. This research, based on a thorough review of the information available from numerous sources, mostly related to Socio-economic Sciences and Humanities, sheds light on the lasting, widespread and diversified use of many tens of woody species - native and cultivated - growing on the island. This work represents an initial contribution to a topic largely overlooked the national and regional literature concerning forest sciences and wood technology. Contrariwise, the very precise information available on the specific uses of wood from certain Sicilian woody species clearly testifies to the profound knowle…
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…
The Italian endemic forest plants: an annotated inventory and synthesis of knowledge
2023
Background and aims – Forests are among the most threatened ecosystems worldwide, and endemic plants are often a vulnerable component of the flora of a given territory. So far, however, understory forest endemics of southern Europe have received little attention and are poorly known for several aspects. Material and methods – We developed the first list of native vascular plants that are restricted to Italian forests. Available information on taxonomy, regional distribution, ecology, biology, functional traits, and conservation status was collected for each taxon, allowing to identify major knowledge gaps and calculate baseline statistics. Key results – The list includes 134 taxa, most of w…