In spite of the prominence that conservation of biodiversity has achieved in the world (McNeely 1992), the rate of decline of species with high commercial value is still increasing. The limited arable land and human demand for materials have become major factors contributing to declines in biological resources (Ma et al. 1997). Musk deer have long been famous for the musk that only the male produces. Due to the limited supply of natural musk, musk has been a major item of international trade and the object of smuggling from this region over a long period of time (Sheng 1987, 1992; Liu 1996). The population of wild musk deer has suffered heavy pressure, and the species is on the brink of extinction.

In the Mediterranean, fishing is an ancient tradition and signs of its presence can be found everywhere along its coasts. In early times, most fishing was carried out from land with small nets and traps and only a portion of the fishing operations was carried out from boats away from the coast. Over time, growth of human populations along the Mediterranean coasts led to the expansion of sea fishing and gradual depletion of many near-shore stocks. Until recently, fishing in the Mediterranean retained its artisanal character. The type of small vessels, the fishing gears and labour-intensive character of the operations had changed little from generation to generation. However, some fishing practices benefited greatly from the advent of new technologies, such as those that replaced sails by powered engines, or the incorporation of fish-finding devices and efficient gear-handling techniques. These developments added to a growing market demand from the booming Mediterranean population, and led to overfishing of the most vulnerable target populations.

Fresh waters offer intricate diversity, from small hot springs to huge floodplain systems, from temporary pools to big lakes, each containing significant proportions of the world's stock of inland water. In this collection is a great diversity of organisms, and of interesting relationships amongst them and with traditional peoples. There is thus every reason to value the diversity of freshwater systems and reasons for conserving them, from the ethical to the economic, can be listed no less than for terrestrial systems.

The approaches currently used to conserve the diversity of terrestrial systems, however, may be counter-productive for the conservation of freshwater systems. These approaches include emphasis on individual, often charismatic species, or on areas of high quality that can be boundaried and protected (fortress conservation) and rest on arguments that all species must be maintained for the system to function. The current decline in world biodiversity under our increasing impact suggests that these are failing approaches even for terrestrial systems. They may be disastrous for freshwater ones.

In the 1990s, tourism received increasing attention as a low-impact, non-consumptive development option, in particular for developing countries. It is argued that tourism allows for the use of areas which are otherwise of low value, such as remote beaches, but perfectly meet the demands of the growing travel industry (e.g. WWF [World Wide Fund for Nature ] 1995; World Bank 1998). In line with the concept of sustainable tourism, it is believed that negative social and environmental impacts can be avoided or minimized if tourism development is thoroughly well planned and controlled. This view can be contrasted with the fact that what may be considered sustainable forms of tourism still represent an extremely small share of all tourism, presumably less than 5%, and that some impacts like the use of energy and its global consequences have virtually been excluded from the discussion on sustainability.

The last ten years have seen a growing disillusionment with many conventional fishery management methods, in part, I would suggest, since the managers using them have been unaware of the complexity of the ecosystems they are dealing with. The pendulum seems to be swinging steadily in the direction of spatially-based management tools for fisheries (see e.g. Hilborn & Kennedy 1992; Walters et al. 1993; Seijo et al. 1994; Hall 1998; Caddy 1999a), and the Mediterranean is ideally suited for testing and applying such mechanisms from both the geographical aspect, and in terms of its high biodiversity.

Transboundary protected areas (PAs) currently represent nearly 10% of the world's network of PAs. The protection of their biological wealth poses special challenges because of the need for cooperation among sovereign states. Adaptive management strategies offer hope for a more accurate assessment of ecological conditions within PAs, and have the potential for furthering one of the major objectives of these PAs, namely enhancing environmental cooperation between countries across whose boundaries the protected area complex is situated. This paper examines the implications of adaptive management for transboundary PAs by using the Polish/Belarusian Bialowieza PAs as a case study. Managers of PAs have conventionally aimed at accurate predictions and short-term system equilibrium through ‘top-down’ policies of control and exclusion. In the case of PAs, these objectives have meant limiting use and employing models of linear growth. Adaptive management strategies rely instead on long-term experience, assessment of experimental interventions, and collection of greater amounts of information to assess future outcomes. They aim at the satisfaction of objectives that may include equilibrium changes. These features of adaptive management imply attention over time to the interactions between different key species, greater involvement of local populations in the collection of information about the resources, and experimenting with different levels of use to infer the most suitable protection strategies.

In Sweden, public awareness of change in the environment has increased in recent decades (Gillberg 1999). An important tool which contributed to an understanding of how the flora is affected by changes in the environment was created by Ellenberg (1974). Six ecological factors, namely light, temperature, continentality, moisture, reaction and nitrogen, were each divided into 9 (in the case of moisture 12) so-called indicator values. A species given a low value occurs mainly where the factor is less pronounced, and vice versa, species in light class 1 prefer full shadow, 5 half shadow, and 9 full light.

A general decrease in abundance of wild plant species used as sources of fuel suggests that more detailed information is urgently needed on species-level trends and their conservation. Such studies have not been carried out so far in India and elsewhere; we therefore quantified the species-wise extraction of fuel from a site (Gori Ganga Valley) in Askot Wildlife Sanctuary in the Kumaun Himalaya. In all, 31 species (26 trees and 5 shrubs) were used as fuel, of which 14 were native to the Himalaya. Utilization patterns, distributions, probabilities of use (PU), resource use indices (RUI), preferences and availabilities in forest communities of these species were determined. Use pattern did not vary much amongst low altitude villages (Similarity: 52–74%), whereas along the vertical (elevational) gradient it varied considerably (Similarity: 15–31%). Woodfordia fruticosa (L.) Kurz, Pinus roxburghii Sarg., Quercus leucotrichophora A.Camus, Macaranga pustulata King ex Hk. f., Quercus lanuginosa Don, Engelhardtia spicata Bl. and Mallotus philippensis (Lamk.) Muell. contributed most to collections, while Pyracantha crenulata (Don) Roem., Syzygium cuminii (L.) Skeels, Alnus nepalensis Don and Bauhinia vahlii Wt. & Arn. were in lesser demand. W. fruticosa, P. roxburghii, M. pustulata, Casearia elliptica Willd., E. spicata, M. philippensis, Q. leucotrichophora and Phoebe lanceolata (Nees) Nees showed high values of PU and RUI, indicating high pressure. High density of P. roxburghii, Rhododendron arboreum Sm., Q. lanuginosa, Q. leucotrichophora, Lyonia ovalifolia (Wall.) Drude, C. elliptica and M. pustulata amongst trees and Maesa indica A.DC., P. crenulata and W. fruticosa amongst shrubs exhibited high density but the remaining species showed low density indicating their possible depletion. Intensive management of natural habitats of species highly-preferred for fuel, diversification of choice of species from natives to non-natives, large scale propagation of highly preferred taxa and plantation of seedlings in the degraded, uncultivated and marginal lands through peoples’ participation should promote conservation and management of fuel resources.

Reedbeds of the Rhône river delta, southern France, constitute an important breeding habitat for purple herons (Ardea purpurea) in Europe. However, the area of reed harvested commercially has increased in recent years and, since 1997, a European Union agri-environmental policy has been implemented to reconcile economic development with conservation goals for harvested reedbeds. Here, we investigate trends in breeding numbers of purple herons and the effect of reed harvesting on reedbed occupancy by herons. A regression model indicates that reedbed use by breeding herons was negatively affected by the reed harvesting pressure. An increase of nearly 50% in the harvested area following the implementation of the policy was probably caused by subsidies (from 67 to 100 US$/ha/year) proposed to reed harvesters, although associated with harvesting constraints intended to conserve heron colonies. The difference between the payments with and without colonies does not appear to have been sufficient to convince reed harvesters to conserve colonies. A case study showed that one heron colony located in a reserve area persisted, while another split into smaller colonies following modifications of reedbeds for future reed harvesting. Results suggest that the agri-environmental policy in its present form has failed to accomplish its primary objective of improving conditions for breeding purple herons in the Camargue. Potential breeding habitat for purple herons have decreased and urgent action is needed to protect some reedbeds from intense reed cutting.

Coastal sand dunes are considered to be amongst the most fragile natural systems, however they may be subject to high-intensity recreational stresses. The aim of this study was to assess the response of soil and annual plants of stabilized Mediterranean coastal dunes in Israel to various short-duration pedestrian and motorcycle traffic intensities. A standard experimental procedure was used comprising of 0, 50, 100, 300 and 500 pedestrian passes, and 0, 20, 50, 100, 200 straight and 150 turn motorcycle passes. The response of annual plants was assessed by determining ground cover, height, species richness and diversity, and soil penetrable depth, organic matter and moisture content. The pedestrian traffic did not affect the cover of annual plants, however; mean annual height, species richness and species diversity were significantly but temporarily affected by 500 passes. Conversely, motorcycle passage had an immediate significant impact on annual plants at all traffic intensities. The maximum effect on plants was observed in the wheel tracks and in the turn lanes. The mean annual ground cover and height were less sensitive measures than species richness and diversity for determining the overall impact of motorcycles on the area. Impact of pedestrian and motorcycle traffic on soil was detected only as an increase in penetrable depth, which was significant at 300 and 500 pedestrian passes, and at 100, 200 straight and 150 turn motorcycle passes. The soil and herbaceous vegetation of Mediterranean stabilized coastal dunes is relatively resistant and shows recovery potential to recreational impacts.

Mediterranean marine protected areas (MPAs) are very diverse in their intrinsic, jurisdictional, management and enforcement features (e.g. Ramos Esplá & McNeill 1994; Batisse & Jeudy de Grissac 1995). They offer a wide array of situations, ranging from relatively large multiple-use marine areas (sensu Agardy 1997), with active management and strong social interactions, to small sanctuaries that are theoretically totally closed to any human activity. This variety may illustrate a good adaptation to local needs, but often results from economic and political compromises which put the ecological considerations in the background.

There is evidence in the literature that a variety of logging practices may result in significant short and long-term changes to vegetation in the forest understory, however, these changes are still largely unknown for many forest types. The objective of this study was to determine the short-term effects of shelterwood logging on tree and non-arboreal plant species composition and diversity in both the understory and sapling strata within the Owain Lake Stand of old-growth red and eastern white pine located in Temagami, Ontario. The most significant changes were increases of white birch (800%), red maple (363%) and bracken fern (110%) in the understory. The most significant decreases within the understory occurred in mosses and liverworts (110%), Canada mayflower (49%) and starflower (28%). Bracken fern, red maple, and bush honeysuckle were the three most abundant species in the post-harvest understory plant community and will probably increase in their abundance under the present disturbed condition. A second shelterwood cut in 20 to 40 years may further facilitate an increase in these three species primarily by increasing light levels at the forest floor. All three species are very vigorous and are likely to dominate the forest understory until the upper canopy closes resulting in decreased light intensity at the forest floor.

Towards the end of the Gulf War in 1991, the retreating Iraqi forces destroyed numerous oil installations in Kuwait, causing widespread oil pollution to extended areas of the desert ecosystem. Vegetation development in an oil-contaminated area of northern Kuwait, where the natural vegetation is dominated by the dwarf shrub Haloxylon salicornicum, was studied seven years after the release of the oil. Some sites of the study area were largely unaffected, whereas others were contaminated to varying degrees by oil. Tar-like oil tracks accounted for the largest proportion of contaminated ground, and these remained largely unvegetated. However, a number of Haloxylon shrubs survived the oil contamination mainly due to the presence of phytogenic hillocks around their bases. These phytogenic hillocks provided ‘safe sites’ for a number of plant species. This also applied to blow-outs, former phytogenic hillocks on the oil tracks that had been subject to severe sand deflation in recent years. Species composition on both the phytogenic hillocks and in the blow-outs was very similar to that of the control area. Laboratory studies showed that the seed bank under the oil tracks had been annihilated. The number of seedlings emerging from soil samples was lower on the phytogenic hillocks and blow-outs than in the control areas. We conclude that recolonization of oil tracks will gradually take place as the hard surface of the tracks begins to disintegrate, or in part becomes covered by sand. The break-up of the track surface has already begun to a limited extent, mainly due to factors such as off-road driving, large herds of grazing animals, burrowing animals (lizards, rodents) and colonies of ants. It is suggested that a specific programme aimed at breaking up the hard surface and allowing it to become mixed with uncontaminated sand would probably greatly enhance recolonization.

The Community Baboon Sanctuary is held by the Belizean government to be a model for participatory ecotourism development. Membership in the Sanctuary is voluntary and involves a commitment to protect riverine resources as habitat for black howler monkeys (Alouatta nigra). While most local residents understand the intrinsic, aesthetic and material values of this important resource and recognize that protection of it can provide opportunities for promoting ecotourism activities in their communities, some members are dissatisfied with the project and threaten to withdraw their membership. This study aimed to define residents’ feelings about resource protection in their communities and their attitudes toward management of the sanctuary. Member and non-member households were surveyed, representing three of the eight villages located within the sanctuary boundaries; 74% of the sample were member households and 26% were non-member. Although the howlers had increased in number since the Sanctuary's establishment, many residents felt that neither their households nor themselves were benefiting. Some Sanctuary members argued that management was not well organized and that benefits to communities and individuals were not evenly distributed. Key issues included the extent and nature of benefits to local residents, perceptions regarding management capabilities, and how management is responding to these issues. While these problems existed, the majority of residents did not want the Sanctuary abolished and strongly supported maintaining Sanctuary status. They might not be reaping benefits directly, but they admitted their lives were no worse off than before and they recognized that some members were benefiting. They had hope that they, too, would be able to eventually take part in some type of tourism business. For long-term local support to be assured, management must orient its work to more directly address those factors that influence residents’ attitudes about the project, namely, the extent of local participation, representative organization, sound management structure, effective management capabilities, fair employment allocation, and education opportunities for community residents regarding the howlers, protection of their habitat, and the value of resource conservation.

Riparian vegetation is vulnerable to human impact worldwide, and this is especially so in arid areas, yet there have been few quantitative studies and this is especially so in Spain. The state of the riparian vegetation along three major rivers and seasonal watercourses of south-eastern Spain was evaluated during 1992–93, using the species composition and community structure in watercourses of different sizes under different management. Reaches of the watercourses were classified using five vegetation indices, namely percentage cover, species richness, degree of connectivity between patches of the plant communities, number of exotic species, and evidence of natural regeneration. With the integration of these into one index, the degradation state of the riparian vegetation in each reach was quantified. In addition, types of human activities exerting the greatest impact were noted, and a scale to evaluate the intensity of each impact was established. The indications are that agriculture has very substantially altered the natural vegetation, and this index has served to highlight the most altered zones, and thus those in most urgent need of restoration. Less-degraded zones could serve as models and sources of plant species for future restoration. The degradation index made it possible to establish quickly, easily, and with a high degree of accuracy, the state of conservation of the riparian vegetation in the study area.

The term ‘marine protected area’ (MPA) refers to areas in which human activities that cause reductions in populations either directly through exploitation or indirectly through habitat alteration are eliminated or greatly reduced. This spatially explicit approach to managing human impacts has many potential ecological and socio-economic benefits that can alleviate some of the problems fundamental to conventional management practices and can therefore complement, but is unlikely to supplant, the conventional practices (Allison et al. 1998; Bohnsack 1998, Lauck et al. 1998; Hastings & Botsford 1999; Murray et al. 1999). Five reviews in this number of Environmental Conservation summarize the main issues relevant to MPAs in the Western Mediterranean, our understanding of their ecological and management consequences, and our knowledge of the ecological and socio-economic processes that determine their effectiveness for fisheries management and conservation (Badalamenti et al. 2000; García Charton et al. 2000; Pinnegar et al. 2000; Planes et al. 2000; Sánchez Lizaso et al. 2000). The reviews identify three issues of key importance to the development and success of MPAs for conservation and management. First, MPAs hold strong promise for management and conservation objectives, but the historical pattern of haphazard design, implementation, enforcement and evaluation has often produced equivocal and sometimes contradicting evidence for both their ecological effects and their effectiveness at achieving their intended objectives. Second, our understanding of many of the critical population and community processes that bear greatly on the consequences of this approach (e.g. dispersal, recruitment, direct and indirect effects of competition and predation) suffers from a lack of strong empirical studies and a comprehensive theoretical framework. Third, the global growth of interest in MPAs and concern for rapid development of organized systems of MPAs is great. Taken together, these three issues identify an urgent need for a well-developed theoretical framework, more rigorous empirical studies motivated and directed by theory, and actual implementation of systems of MPAs that will allow for proper evaluation and an evolution toward optimal design.

Eutrophication of waterways, expressed as excess growth of cyanobacteria, is frequently caused by excessive inputs of phosphorus. Human activities are often the origin of such nutrient enrichment and so many governments have addressed the issue by implementing a range of technological, legislative and biological measures. By contrast, Australia has taken a different approach and also relied heavily on public education. This paper compares the success of two of these ‘Phoswatch’ public education programmes. One campaign occurred within the Murray-Darling Basin in a country town called Albury-Wodonga. The other occurred within the Hawkesbury-Nepean Basin in the western suburbs of Sydney. The campaigns were evaluated using a series of community surveys and by monitoring phosphorus loads at a sewage treatment plant. The Albury-Wodonga campaign was the most effective of the two campaigns with increases in the number of people reporting a range of behaviours and these resulted in a decrease in phosphorus loads entering the local treatment plant. The comparison suggests that clear simple messages, a diversity of media exposure, and some form of feedback are critical to programme success. It is concluded that campaigns such as Phoswatch can provide a long term, cost effective way of addressing eutrophication by focusing on the problem at source and creating community support for an integrated strategy.

Marine protected areas (MPAs) may be important for protecting the marine environment, but they may also have substantial socio-cultural impacts about which very little is currently known, or acknowledged. In the Mediterranean, few data are available on the socio-economic consequences of MPAs. The present study reviews the existing data on MPAs in Spain, France, Italy and Greece. A general increase in tourist activities in Mediterranean MPAs is evident, as are increases in the abundances of larger fish species, although there are no data indicating yields for fisheries increase adjacent to MPAs. A large increase in the number of divers and vessels using MPAs has already had impacts on natural benthic communities as a result of diver damage, mooring and the feeding of large fish by divers. Emphasis has been given in only a few MPAs to promoting public awareness of these impacts. Although the conservation of nature should be considered the fundamental objective of MPAs, neglecting their social, cultural and economic impacts has at times led to poor local consensus, if not hostility. We believe that planning and managing MPAs should be conducted on a multidisciplinary basis. Nonetheless, no single model can be considered valid for the whole Mediterranean. The very variable characteristics of coastal areas, from those of small uninhabited islands to those of cities, require different weightings to be assigned for each factor in order to achieve a durable equilibrium and realize the original objectives of each MPA. Only with such flexibility of management will it be possible to reach a greater understanding of the MPA system and create a lasting consensus in favour of conservation, a consensus which would mean an overwhelming majority of people actively avoiding damaging nature and preventing others from doing so.

Traditional communities living at forest margins use forest resources in various ways. Understanding the resource-use patterns of such communities provides a basis for seeking the participation of such communities in forest conservation. The present study undertaken in the Mudumalai Wildlife Sanctuary and the adjoining Sigur Plateau in the state of Tamil Nadu, India, addressed the importance of forests in the household economy of indigenous communities. Its main objective was to quantify the forest dependence of local people, and assess to what extent restrictive biodiversity conservation strategies would affect their livelihoods. These questions help in understanding the stake of the people in forest conservation strategies. Economic activities of the households were investigated in eight selected villages, four of which (proximal villages) had access to reserve forest areas where collection of forest products was allowed and were also located close to markets that provided opportunities to sell forest products. The remaining four villages (distal villages) were close to the Wildlife Sanctuary where the collection of forest products was not allowed and there was no access to organized markets. A total of 132 households were surveyed. The households both in proximal and distal villages were classified into three distinct income groups namely ‘low’, ‘medium’ and ‘high’, based on their gross annual income. Use of forest resources in Mudumalai was found to be influenced by multiple factors. In terms of livelihood of the traditional communities, livestock rearing and collection of non-wood forest products (NWFPs) were very important, the latter both for cash income and subsistence use. Peripheral communities used the forest resources in a varied fashion, with NWFPs contributing differently to different income groups. Where there was no restriction on forest use, higher income groups used the resources more heavily than lower income groups, and hence would suffer most from any restriction on forest use. People's reliance on forests evidently declined with increased level both of education and of opportunities in non-forestry vocations. Forests were still very important to the household economy of the local people both in terms of food security and cash income.

Reform of the European Union's Common Agricultural Policy (CAP), especially through Regulation 2078/92, provided a dual role for farmers as food producers and stewards of the environment and the countryside. Implementation of integrated pest management (IPM) in greenhouse enterprises in Greece is a part of this effort. In this study, the effectiveness of the adoption and implementation of IPM practices in greenhouse vegetable cultivation in Central Macedonia (Greece) was assessed. Eighty-six farmers enrolled in an IPM programme and 28 conventional greenhouse farmers were selected and interviewed in 1997, using a questionnaire designed to assess their behaviour in the greenhouse and examine their attitudes towards the environment. Wide adoption of IPM was found still to face many hindrances, mainly due to the lack of appropriate technical and advisory support by the agricultural local services, and farmers' low level of knowledge of IPM. Comparisons between IPM and conventional farmers revealed that: (1) the two groups' behaviour did not differ significantly in greenhouse production practices, but (2) IPM farmers were more aware of the new environmental dimension of the CAP, and (3) they expressed more concern about the negative effects of modern agriculture on nature, than conventional farmers.