Search results for "protected"
showing 10 items of 238 documents
A review of methods to assess connectivity and dispersal between fish populations in the Mediterranean Sea
2013
Fish populations are linked to each other via dispersal of individuals as eggs, larvae, juveniles or adults. The understanding of this process, known as connectivity, has a pivotal role for the management of overexploited fish stocks and the development of accurate conservation strategies. Knowledge on connectivity and fish movements is considered fundamental toward the correct design of marine protected area (MPA) networks for the achievement of the benefits of protection. Connectivity patterns are still largely unknown worldwide. A general lack of knowledge is particularly evident for the Mediterranean Sea where few studies dealing with this topic have been carried out and some methods, c…
More wood but less biodiversity in forests in Finland: a historical evaluation
2022
National forest inventories (NFI) in Finland provide empirical evidence for a marked increase in tree growth, total forest area, and total timber volume over the past century. Meanwhile, the assessments of threatened forest species and habitats indicate continuous degradation of biodiversity in Finnish forests. To shed light on this seeming paradox, we summarized the temporal patterns of forest characteristics (indicators) that have major influence on biodiversity, comparing the structure of current Finnish forests with natural and historical references. Using a variety of data sources, we estimated the proportion of area of old-growth forest and of deciduous-dominated forests, the density …
A review of the assessment of the effects of protection in MPAs: current knowledge and gaps
2007
Trophic cascades in benthic marine ecosystems: lessons for fisheries and protected-area management
2000
An important principle of environmental science is that changes in single components of systems are likely to have consequences elsewhere in the same systems. In the sea, food web data are one of the few foundations for predicting such indirect effects, whether of fishery exploitation or following recovery in marine protected areas (MPAs). We review the available literature on one type of indirect interaction in benthic marine ecosystems, namely trophic cascades, which involve three or more trophic levels connected by predation. Because many indirect effects have been revealed through fishery exploitation, in some cases we include humans as trophic levels. Our purpose is to establish how wi…
G-CLASS: geosynchronous radar for water cycle science – orbit selection and system design
2019
The mission geosynchronous – continental land atmosphere sensing system (G-CLASS) is designed to study thediurnal water cycle, using geosynchronous radar. Although the water cycle is vital to human society, processes on timescalesless than a day are very poorly observed from space. G-CLASS, using C-band geosynchronous radar, could transform this. Itsscience objectives address intense storms and high resolution weather prediction, and significant diurnal processes such assnow melt and soil moisture change, with societal impacts including agriculture, water resource management, flooding, andlandslides. Secondary objectives relate to ground motion observations for earthquake, volcano, and subs…
Synthesis of Lessons Learned. Enhancing Equity in the Relationship between Protected Areas and Local Communities in the Context of Global Change. Hor…
2003
This study is a review of the engagement of local communities in the management of natural resources in the Horn of Africa and Kenya, with the objective to contribute to enhancing equity in the relationship of local communities with protected areas.
La laguna opaca. Gestión y gobernanza del agua en l’Albufera de València (España)
2019
International audience; The Albufera de Valencia is a complex anthropogenic waterscape, constructed by different social groups over centuries. Today water management in the protected wetland remains opaque, much like the water in the eutrophic lagoon. Four major organiza-tions manage this natural heritage, which remains torn between nature conservation and rice growing, in a jigsaw of overlap-ping jurisdictions and crisscrossed visions. Water management in this socioecological-system is complex and contested, and takes place within a changing scenario due to recent variations in the water quality and quantity budgets. This paper analyses this changing socio-ecological system based on interv…
Values as a hobby: the transformation and survival of cultural ritual values in the process of desecration
2023
The paper examines how values lose their sacred or protected significance and turn into values as a hobby. Using an excerpt from Arundhati Roy's novel “The God of Small Things”, a trend of transformation of values is outlined, which raises questions about the importance of different values, both sacred and secular, for the representatives of these values. In short, the question is one of the value of values: is their practice (affirmation) meaningful in the basic sense of these values, or is this practice mere imitation as a hobby? The article gives several examples that show the versatility of this topic. The case of Qutb’s Islamism highlights the importance of the distinction between priv…
Termomodernizacje budynków, a miejsca lęgowe chronionych gatunków ptaków - zagrożenie czy szansa?
2017
Teoretycznie prace związane z termoizolacją budynków, szczególnie bloków mieszkalnych, powinny zostać poprzedzone ekspertyzą ornitologiczną. Nawet jeśli takowa będzie miała miejsce, montowane budki lęgowe kompensujące utratę miejsc lęgowych dla takich gatunków jak wróbel (Passer domesticus) lub jerzyk (Apus apus) często wieszane są nieprawidłowo lub zasiedlone są w następnym sezonie przez inne dziuplaki - głównie szpaki (Sturnus vulgaris). Wobec tego, z punktu widzenia ochrony lęgowych i zagrożonych gatunków, termoizolacja jest uważana za szkodliwą i przynoszącą straty. Jednak w miarę upływu czasu,paradoksalnie, warstwa izolacyjna stwarza ponownie warunki do gniazdowania głównie dzięki nied…
Complex effects of natural disasters on protected areas
2022
It is now broadly recognised that in order to be sustainable, protected areas (PAs) must bring concrete benefits to local populations who suffer from the restrictions imposed for conservation. Natural disasters, such as major floods, bring additional challenges to conservation efforts and related support activities, notably nature-based tourism. Disasters often intensify conflicts between conservation objectives and local community needs, but they may also bring some mutual benefits. Reduced income from decreased nature-based tourism can, for example, lead to expansion of agricultural fields to protected forests, and subsequent land-use conflicts. Yet, disasters can also strengthen feelings…