An ecoregion ( ecological region ) is an ecologically and geographically defined area that is smaller than a bioregion , which in turn is smaller than a biogeographic realm . Ecoregions cover relatively large areas of land or water, and contain characteristic, geographically distinct assemblages of natural communities and species . The biodiversity of flora , fauna and ecosystems that characterise an ecoregion tends to be distinct from that of other ecoregions. In theory, biodiversity or conservation ecoregions are relatively large areas of land or water where the probability of encountering different species and communities at any given point remains relatively constant, within an acceptable range of variation (largely undefined at this point). Ecoregions are also known as "ecozones" ("ecological zones"), although that term may also refer to biogeographic realms .
77-579: Para Wirra Conservation Park (formerly Para Wirra Recreation Park and Para Wirra National Park ) is a 1,417-hectare (3,500-acre) protected area located in the foothills of the Mount Lofty Ranges in the northern end of the Adelaide metropolitan area in South Australia . The conservation park is part of a larger, 2,573-hectare (6,360-acre) block of contiguous native vegetation, the remainder of which
154-491: A critical factor in their success. Subsequently, the range of natural resources that any one protected area may guard is vast. Many will be allocated primarily for species conservation whether it be flora or fauna or the relationship between them, but protected areas are similarly important for conserving sites of (indigenous) cultural importance and considerable reserves of natural resources such as; Annual updates on each of these analyses are made in order to make comparisons to
231-415: A given ecoregion are more similar to each other than to those of surrounding ecoregions and together form a conservation unit. Freshwater systems include rivers , streams , lakes , and wetlands . Freshwater ecoregions are distinct from terrestrial ecoregions, which identify biotic communities of the land, and marine ecoregions, which are biotic communities of the oceans. A map of Freshwater Ecoregions of
308-616: A global network contribute to achieving the three objectives of the Convention and the 2010 target to significantly reduce the current rate of biodiversity loss ." In 2010, protected areas were included in Target 11 of the CBD's Strategic Plan for Biodiversity , known as the Aichi Biodiversity Targets. Target 11 states: In 2018, to complement protected areas across landscapes and seascapes,
385-469: A holistic, "weight-of-evidence" approach where the importance of various factors may vary. An example of the algorithmic approach is Robert Bailey 's work for the U.S. Forest Service, which uses a hierarchical classification that first divides land areas into very large regions based on climatic factors, and subdivides these regions, based first on dominant potential vegetation, and then by geomorphology and soil characteristics. The weight-of-evidence approach
462-482: A nationwide survey that compares the biodiversity of Bhutan's protected areas versus that of intervening non-protected areas. The study indicated that Bhutan's protected areas "are effectively conserving medium and large mammal species, as demonstrated through the significant difference in mammal diversity between protected areas, biological corridors, and non-protected areas with the strongest difference between protected areas and non-protected areas". Protected areas had
539-708: A protected area or an entire network of protected areas may lie within a larger geographic zone that is recognised as a terrestrial or marine ecoregions (see Global 200 ), or a Crisis Ecoregions for example. As a result, Protected Areas can encompass a broad range of governance types. A wide variety of rights-holders and stakeholders are involved in the governance and management of protected areas, including forest protected areas, such as government agencies and ministries at various levels, elected and traditional authorities, indigenous peoples and local communities, private individuals and non-profit trusts, among others. Most protected-area and forest management institutions acknowledge
616-662: A protected area. Scientific publications have identified 3,749 enacted PADDD events in 73 countries since 1892 which have collectively impacted an area approximately the size of Mexico. PADDD is a historical and contemporary phenomenon. 78% of PADDD events worldwide were enacted since 2000 and governments in at least 14 countries are currently considering at least 46 PADDD proposals. Proximate causes of PADDD vary widely but most PADDD events globally (62%) are related to industrial scale resource extraction and development – infrastructure, industrial agriculture, mining, oil and gas, forestry, fisheries, and industrialization. PADDD challenges
693-509: A set of ecoregions identified by WWF whose conservation would achieve the goal of saving a broad diversity of the Earth's ecosystems, includes a number of areas highlighted for their freshwater biodiversity values. The Global 200 preceded Freshwater Ecoregions of the World and incorporated information from regional freshwater ecoregional assessments that had been completed at that time. Sources related to
770-520: A source of aesthetic and cultural value for tourism and heritage. Such services are often overlooked by humanity, due to the ecosystem from which they originate being far from urbanized areas. The contamination of ecosystem services within a designated area ultimately degrades their use for society. For example, the protection of a water body inherently protects that water body's microorganisms and their ability to adequately filter pollutants and pathogens, ultimately protecting water quality itself. Therefore,
847-482: A specific class of protected area. China, a megadiverse country , has begun implementing various protected areas in recent years. As of the year 2017, China has nearly 10,000 to 12,000 protected areas , 80% of which are nature reserves aiming to foster biodiversity conservation. These newly implemented reserves safeguard a range of ecosystems, from tropical forests to marine habitats. These protected areas encompass nearly 20% of China's land area. Natura 2000
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#1733085254234924-407: A web application developed by Resolve and Google Earth Engine. An ecoregion is a "recurring pattern of ecosystems associated with characteristic combinations of soil and landform that characterise that region". Omernik (2004) elaborates on this by defining ecoregions as: "areas within which there is spatial coincidence in characteristics of geographical phenomena associated with differences in
1001-529: Is a private protected area , also known as a 'Private Reserve' predominantly managed for biodiversity conservation, protected without formal government recognition and is owned and stewarded by the O corporation International. O parks plays a particularly important role in conserving critical biodiversity in a section of the Mesoamerican Biological Corridor known as the Paso del Istmo , located along
1078-399: Is a heritage register, a list of national heritage places deemed to be of outstanding heritage significance to Australia, established in 2003. The list includes natural and historic places, including those of cultural significance to Indigenous Australians . Indigenous Protected Areas (IPAs) are formed by agreement with Indigenous Australians, and declared by Indigenous Australians, and form
1155-521: Is a network of protected areas established by the EU across all member states. It is made up of Special Areas of Conservation (SACs) and Special Protection Areas (SPAs) designated respectively under the Habitats Directive and Birds Directive . 787,767 km (304,159 sq mi) are designated as terrestrial sites and 251,564 km (97,129 sq mi) as marine sites. Overall, 18 percent of
1232-426: Is analogous to that used for terrestrial ecoregions. Major habitat types are identified: polar, temperate shelves and seas, temperate upwelling, tropical upwelling, tropical coral, pelagic (trades and westerlies), abyssal, and hadal (ocean trench). These correspond to the terrestrial biomes . The Global 200 classification of marine ecoregions is not developed to the same level of detail and comprehensiveness as that of
1309-411: Is currently a developing country that is undergoing infrastructure development and resource collection. The country's economic progression has brought about human-wildlife conflict and increased pressure on the existence of its protected areas. In light of ongoing disputes on the topic of optimal land usage, Dorji (et al.), in a study using camera traps to detect wildlife activity, summarize the results of
1386-596: Is exemplified by James Omernik's work for the United States Environmental Protection Agency , subsequently adopted (with modification) for North America by the Commission for Environmental Cooperation . The intended purpose of ecoregion delineation may affect the method used. For example, the WWF ecoregions were developed to aid in biodiversity conservation planning, and place a greater emphasis than
1463-425: Is often why many Wildlife Reserves and National Parks face the human threat of poaching for the illegal bushmeat or trophy trades, which are resorted to as an alternative form of substinence. Poaching has thus increased in recent years as areas with certain species are no longer easily and legally accessible. This increasing threat has often led governments to enforce laws and implement new policies to adhere to
1540-611: Is owned by PIRSA Forestry , SA Water and private landholders. Protected area Protected areas or conservation areas are locations which receive protection because of their recognized natural or cultural values. Protected areas are those areas in which human presence or the exploitation of natural resources (e.g. firewood, non-timber forest products , water, ...) is limited. The term "protected area" also includes marine protected areas and transboundary protected areas across multiple borders. As of 2016, there are over 161,000 protected areas representing about 17 percent of
1617-488: Is recognised not only ecologically, but culturally through further development in the arena of Indigenous and Community Conserved Areas (ICCAs). ICCAs are "natural and/or modified ecosystems containing significant bio - diversity values and ecological services, voluntarily conserved by (sedentary and mobile) indigenous and local communities, through customary laws or other effective means". As of December 2022, 17% of land territory and 10% of ocean territory were protected. At
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#17330852542341694-664: Is the Main Ridge Forest Reserve, established by an ordinance dated 13 April 1776. Other sources mention the 1778 approval of a protected area on then- Khan Uul , a mountain previous protected by local nomads for centuries in Mongolia, by then-ruling Qing China Tenger Tetgegch Khaan . However, the mass protected areas movement did not begin until late nineteenth-century in North America, Australia, New Zealand and South Africa, when other countries were quick to follow suit. While
1771-572: Is to protect 30% of the terrestrial and marine territory of the United States by the year 2030. In the United Kingdom, the term conservation area almost always applies to an area (usually urban or the core of a village) of special architectural or historic interest, the character of which is considered worthy of preservation or enhancement. It creates a precautionary approach to the loss or alteration of buildings and/or trees, thus it has some of
1848-546: Is usually the main reason for constructing protected areas, the protection of biodiversity also protects the ecosystem services society enjoys. Some ecosystem services include those that provide and regulate resources, support natural processes, or represent culture. Provisioning services provide resources to humanity, such as fuel and water, while regulating services include carbon sequestration , climate regulation, and protection against disease. Supporting ecosystem services include nutrient cycling , while cultural services are
1925-470: The 2022 United Nations Biodiversity Conference almost 200 countries, signed onto the agreement which includes protecting 30% of land and oceans by 2030 ( 30 by 30 ). In 1992, a protected area was defined in paragraph 2 of the Convention on Biological Diversity (CBD) as "a geographically defined area which is designated or regulated and managed to achieve specific conservation objectives." Under Article 8 of
2002-965: The European Union in its Biodiversity Strategy for 2030 , Campaign for Nature which promoted the goal during the Convention on Biodiversity 's COP15 Summit and the G7 . In December 2022, Nations have reached an agreement with the Kunming-Montreal Global Biodiversity Framework at the COP15, which includes the 30 by 30 initiative. Protected areas are implemented for biodiversity conservation , often providing habitat and protection from hunting for threatened and endangered species . Protection helps maintain ecological processes that cannot survive in most intensely managed landscapes and seascapes. Indigenous peoples and local communities frequently criticize this method of fortress conservation for
2079-599: The Himalayas and the Sahara . The boundaries of ecoregions are often not as decisive or well recognized, and are subject to greater disagreement. Ecoregions are classified by biome type, which are the major global plant communities determined by rainfall and climate. Forests, grasslands (including savanna and shrubland), and deserts (including xeric shrublands ) are distinguished by climate ( tropical and subtropical vs. temperate and boreal climates) and, for forests, by whether
2156-523: The Millennium Development Goals and several other fields of analysis are expected to be introduced in the monitoring of protected areas management effectiveness, such as freshwater and marine or coastal studies which are currently underway, and islands and drylands which are currently in planning. The effectiveness of protected areas to protect biodiversity can be estimated by comparing population changes over time. Such an analysis found that
2233-531: The United Nations Environment Programme , the United States had a total of 6770 terrestrial nationally designated (federal) protected areas. These protected areas cover 2,607,131 km (1,006,619 sq mi), or 27.08 percent of the land area of the United States. This is also one-tenth of the protected land area of the world. According to a report from the Center for American Progress ,
2310-638: The World Charter for Nature in 1982, the Rio Declaration at the Earth Summit in 1992, and the Johannesburg Declaration 2002. Recently, the importance of protected areas has been brought to the fore at the threat of human-induced global heating and the understanding of the necessity to consume natural resources in a sustainable manner. The spectrum of benefits and values of protected areas
2387-450: The "ecoregion" as a unit of analysis. The " Global 200 " is the list of ecoregions identified by WWF as priorities for conservation . Terrestrial ecoregions are land ecoregions, as distinct from freshwater and marine ecoregions. In this context, terrestrial is used to mean "of land" (soil and rock), rather than the more general sense "of Earth " (which includes land and oceans). WWF (World Wildlife Fund) ecologists currently divide
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2464-527: The 12-mile-wide isthmus between Lake Nicaragua and the Pacific Ocean. On 21 May 2019, The Moscow Times cited a World Wildlife Fund report indicating that Russia now ranks first in the world for its amount of protected natural areas with 63.3 million hectares of specially protected natural areas. However, the article did not contain a link to WWF's report and it may be based on previously gathered data. As of 31 January 2008 , according to
2541-457: The 17th and 18th centuries, protected areas were mostly hunting grounds of rulers and thus, on the one hand, an expression of the absolute personal authority of a monarch, and on the other hand, they were concentrated in certain places and diminished with increasing spatial distance from the seat of power. In the late 19th century, modern territorial states emerged which, thanks to the transport and communication technologies of industrialisation and
2618-636: The CBD, parties who entered the treaty agreed to, among other things, "establish a system of protected areas." In 2004, the CBD's Conference of the Parties (COP) adopted the Program of Work on Protected Areas (PoWPA) to further develop and promote protected areas. PoWPA's objective was the "establishment and maintenance by 2010 for terrestrial and by 2012 for marine areas of comprehensive, effectively managed, and ecologically representative national and regional systems of protected areas that collectively, inter alia through
2695-514: The EU land mass is designated. Protected areas of India include National parks , Wildlife sanctuaries , biosphere reserves , reserved and protected forests , conservation and community reserves , communal forests , private protected areas and conservation areas . Lebanon, home to one of the highest densities of floral diversity in the Mediterranean basin , hosts tree species with critical biogeographical locations (southernmost limit) on
2772-558: The Earth. The use of the term ecoregion is an outgrowth of a surge of interest in ecosystems and their functioning. In particular, there is awareness of issues relating to spatial scale in the study and management of landscapes . It is widely recognized that interlinked ecosystems combine to form a whole that is "greater than the sum of its parts". There are many attempts to respond to ecosystems in an integrated way to achieve "multi-functional" landscapes, and various interest groups from agricultural researchers to conservationists are using
2849-547: The Omernik or Bailey systems on floral and faunal differences between regions. The WWF classification defines an ecoregion as: A large area of land or water that contains a geographically distinct assemblage of natural communities that: According to WWF, the boundaries of an ecoregion approximate the original extent of the natural communities prior to any major recent disruptions or changes. WWF has identified 867 terrestrial ecoregions, and approximately 450 freshwater ecoregions across
2926-513: The United Nations. The categories provide international standards for defining protected areas and encourage conservation planning according to their management aims. IUCN Protected Area Management Categories : Protected areas are cultural artifacts, and their story is entwined with that of human civilization. Protecting places and natural resources is by no means a modern concept, whether it be indigenous communities guarding sacred sites or
3003-560: The WWF concept prioritizes biogeography, that is, the distribution of distinct species assemblages. In 2017, an updated terrestrial ecoregions dataset was released in the paper "An Ecoregion-Based Approach to Protecting Half the Terrestrial Realm" led by E. Dinerstein with 48 co-authors. Using recent advances in satellite imagery the ecoregion perimeters were refined and the total number reduced to 846 (and later 844), which can be explored on
3080-519: The World (TEOW), led by D. Olsen, E. Dinerstein, E. Wikramanayake, and N. Burgess. While the two approaches are related, the Bailey ecoregions (nested in four levels) give more importance to ecological criteria and climate zones, while the WWF ecoregions give more importance to biogeography, that is, the distribution of distinct species assemblages. The TEOW framework originally delineated 867 terrestrial ecoregions nested into 14 major biomes, contained with
3157-783: The World, released in 2008, has 426 ecoregions covering virtually the entire non-marine surface of the earth. World Wildlife Fund (WWF) identifies twelve major habitat types of freshwater ecoregions: Large lakes, large river deltas, polar freshwaters, montane freshwaters, temperate coastal rivers, temperate floodplain rivers and wetlands, temperate upland rivers, tropical and subtropical coastal rivers, tropical and subtropical floodplain rivers and wetlands, tropical and subtropical upland rivers, xeric freshwaters and endorheic basins, and oceanic islands. The freshwater major habitat types reflect groupings of ecoregions with similar biological, chemical, and physical characteristics and are roughly equivalent to biomes for terrestrial systems. The Global 200 ,
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3234-455: The abundance of 2,239 terrestrial vertebrate populations changed at slower rate in protected areas. On average, vertebrate populations declined five times more slowly within protected areas (−0.4% per year) than at similar sites lacking protection (−1.8% per year). Along with providing important stocks of natural resources, protected areas are often major sources of vital ecosystem services , unbeknownst to human society. Although biodiversity
3311-401: The administration of Joe Biden reached a record in conservation. In 3 years of ruling it conserved or in the process of conserving more than 24 millions acres of public land and in 2023 alone more than 12.5 million acres of public land became protected area. It is doing it together with the indigenous people as 200 agreements of co-stewardship with them were signed in 2023 alone. The goal of Biden
3388-480: The authors was to support global biodiversity conservation by providing a "fourfold increase in resolution over that of the 198 biotic provinces of Dasmann (1974) and the 193 units of Udvardy (1975)." In 2007, a comparable set of Marine Ecoregions of the World (MEOW) was published, led by M. Spalding, and in 2008 a set of Freshwater Ecoregions of the World (FEOW) was published, led by R. Abell. Bailey's ecoregion concept prioritizes ecological criteria and climate, while
3465-677: The broad latitudinal divisions of polar, temperate, and tropical seas, with subdivisions based on ocean basins (except for the southern hemisphere temperate oceans, which are based on continents). Major marine biogeographic realms, analogous to the eight terrestrial biogeographic realms , represent large regions of the ocean basins: Arctic , Temperate Northern Atlantic , Temperate Northern Pacific , Tropical Atlantic , Western Indo-Pacific , Central Indo-Pacific , Eastern Indo-Pacific , Tropical Eastern Pacific , Temperate South America , Temperate Southern Africa , Temperate Australasia , and Southern Ocean . A similar system of identifying areas of
3542-473: The closely meshed and well-connected administrative apparatus that came with it, could actually assert claims to power over large contiguous territories. The establishment of nature reserves in mostly peripheral regions thus became possible and at the same time underpinned the new state claim to power. Initially, protected areas were recognised on a national scale, differing from country to country until 1933, when an effort to reach an international consensus on
3619-534: The convention of European hunting reserves. Over 2000 years ago, royal decrees in India protected certain areas. In Europe, rich and powerful people protected hunting grounds for a thousand years. Moreover, the idea of protection of special places is universal: for example, it occurs among the communities in the Pacific ("tapu" areas) and in parts of Africa (sacred groves). The oldest legally protected reserve recorded in history
3696-401: The delineation of ecoregions an imperfect science. Another complication is that environmental conditions across an ecoregion boundary may change very gradually, e.g. the prairie-forest transition in the midwestern United States, making it difficult to identify an exact dividing boundary. Such transition zones are called ecotones . Ecoregions can be categorized using an algorithmic approach or
3773-519: The draft Global Biodiversity Framework, which is due to be agreed at the 15th Conference of the Parties to the UN Convention on Biological Diversity, which will be held 5 to 17 December in Montreal , Canada. How to manage areas protected for conservation brings up a range of challenges – whether it be regarding the local population, specific ecosystems or the design of the reserve itself – and because of
3850-405: The early 1970s, the term 'ecoregion' was introduced (short for ecological region), and R.G. Bailey published the first comprehensive map of U.S. ecoregions in 1976. The term was used widely in scholarly literature in the 1980s and 1990s, and in 2001 scientists at the U.S. conservation organization World Wildlife Fund (WWF) codified and published the first global-scale map of Terrestrial Ecoregions of
3927-498: The effectiveness of most of them remains unclear. Scientists advocate that 50% of global land and seas be converted to inter-connected protected areas to sustain these benefits. The Asian country Bhutan achieved this high-reaching target by reserving 51.4% of the country's area as protected areas interconnected through biological corridors . Although these networks are well regulated (local communities are aware of their importance and actively contribute to their maintenance), Bhutan
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#17330852542344004-524: The generally violent processes by which the regulations of the areas are enforced. The definition that has been widely accepted across regional and global frameworks has been provided by the International Union for Conservation of Nature (IUCN) in its categorisation guidelines for protected areas. The definition is as follows: A clearly defined geographical space, recognized, dedicated and managed, through legal or other effective means, to achieve
4081-446: The highest levels of mammal biodiversity. This is made possible by the restriction of commercial activity and regulation of consumptive uses (firewood, timber, etc.). The regulation of such practices has allowed Bhutan's protected areas to thrive with high carnivore diversity and other rare mammals such as Chinese pangolin , Indian pangolin , mountain weasel ( Mustela altaica ) , small-toothed ferret badger , Asian small clawed otter ,
4158-501: The idea of protected areas spread around the world in the twentieth century, the driving force was different in different regions. Thus, in North America, protected areas were about safeguarding dramatic and sublime scenery; in Africa, the concern was with game parks; in Europe, landscape protection was more common. The designation of protected areas often also contained a political statement. In
4235-537: The implementation of protected areas is vital to maintaining the quality and consistency of ecosystem services, ultimately allowing human society to function without the interference of human infrastructure or policies. Through its World Commission on Protected Areas (WCPA), the IUCN has developed six Protected Area Management Categories that define protected areas according to their management objectives, which are internationally recognised by various national governments and
4312-453: The importance of recognizing the rights of indigenous peoples and local communities, sharing the costs and benefits of protected areas and actively involving them in their governance and management. This has led to the recognition of four main types of governance, defined on the basis of who holds authority, responsibility, and who can be held accountable for the key decisions for protected areas. Indeed, governance of protected areas has emerged
4389-585: The infrastructure and networking needed to substitute consumable resources and substantively protect the area from development or misuse. The soliciting of protected areas may require regulation to the level of meeting demands for food, feed, livestock and fuel, and the legal enforcement of not only the protected area itself but also 'buffer zones' surrounding it, which may help to resist destabilisation. Protected area downgrading, downsizing, and degazettement (PADDD) Protected area downgrading, downsizing, and degazettement (PADDD) events are processes that change
4466-713: The initial goal of protected areas, though many illegal activities are often overlooked. There is increasing pressure to take proper account of human needs when setting up protected areas and these sometimes have to be "traded off" against conservation needs. Whereas in the past governments often made decisions about protected areas and informed local people afterwards, today the emphasis is shifting towards greater discussions with stakeholders and joint decisions about how such lands should be set aside and managed. Such negotiations are never easy but usually produce stronger and longer-lasting results for both conservation and people. In some countries, protected areas can be assigned without
4543-501: The land surface of the Earth into eight biogeographical realms containing 867 smaller terrestrial ecoregions (see list ). The WWF effort is a synthesis of many previous efforts to define and classify ecoregions. The eight realms follow the major floral and faunal boundaries, identified by botanists and zoologists, that separate the world's major plant and animal communities. Realm boundaries generally follow continental boundaries, or major barriers to plant and animal distribution, like
4620-528: The legal status of national parks and other protected areas in both terrestrial and marine environments. Downgrading is a decrease in legal restrictions on human activities within a protected area, downsizing is a decrease in protected area size through a legal boundary change, and degazettement is the loss of legal protection for an entire protected area. Collectively, PADDD represents legal processes that temper regulations, shrink boundaries, or eliminate legal protections originally associated with establishment of
4697-907: The legislative and policy characteristics of listed buildings and tree preservation orders . The concept was introduced in 1967, and by 2017 almost 9,800 had been designated in England. Ecoregions Three caveats are appropriate for all bio-geographic mapping approaches. Firstly, no single bio-geographic framework is optimal for all taxa. Ecoregions reflect the best compromise for as many taxa as possible. Secondly, ecoregion boundaries rarely form abrupt edges; rather, ecotones and mosaic habitats bound them. Thirdly, most ecoregions contain habitats that differ from their assigned biome . Biogeographic provinces may originate due to various barriers, including physical (plate tectonics, topographic highs), climatic (latitudinal variation, seasonal range) and ocean chemical related (salinity, oxygen levels). The history of
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#17330852542344774-686: The long-term conservation of nature with associated ecosystem services and cultural values. Protected Areas alleviate climate change effects in a variety of ways: The objective of protected areas is to conserve biodiversity and to provide a way for measuring the progress of such conservation. Protected areas will usually encompass several other zones that have been deemed important for particular conservation uses, such as Important Bird Areas (IBA) and Endemic Bird Areas (EBA), Centres of Plant Diversity (CPD), Indigenous and Community Conserved Areas (ICCA), Alliance for Zero Extinction Sites (AZE) and Key Biodiversity Areas (KBA) among others. Likewise,
4851-430: The longstanding assumption that protected areas are permanent fixtures and highlights the need for decision-makers to consider protected area characteristics and the socioeconomic context in which they are situated to better ensure their permanence. A main goal of protected areas is to prevent loss of biodiversity . However, their effectiveness is limited by their small size and isolation from each other (which influence
4928-424: The maintenance of species), their restricted role in preventing climate change , invasive species , and pollution, their high costs, and their increasing conflict with human demands for nature's resources. In addition, the type of habitat, species composition, legal issues and governance, play important roles. One major problem is that only 18% of the area covered by protected areas have been assessed, hence
5005-479: The many unpredicatable elements in ecology issues, each protected area requires a case-specific set of guidelines. Enforcing protected area boundaries is a costly and labour-heavy endeavour, particularly if the allocation of a new protected region places new restrictions on the use of resources by the native people which may lead to their subsequent displacement. This has troubled relationships between conservationists and rural communities in many protected regions and
5082-682: The networks that hold regular revisions for the succinct categorisations that have been developed to regulate and record protected areas. In 1972, the Stockholm Declaration of the United Nations Conference on the Human Environment endorsed the protection of representative examples of all major ecosystem types as a fundamental requirement of national conservation programmes. This has become a core principle of conservation biology and has remained so in recent resolutions – including
5159-463: The oceans for conservation purposes is the system of large marine ecosystems (LMEs), developed by the US National Oceanic and Atmospheric Administration (NOAA). A freshwater ecoregion is a large area encompassing one or more freshwater systems that contains a distinct assemblage of natural freshwater communities and species. The freshwater species, dynamics, and environmental conditions within
5236-415: The quality, health, and integrity of ecosystems ". "Characteristics of geographical phenomena" may include geology , physiography , vegetation, climate, hydrology , terrestrial and aquatic fauna , and soils, and may or may not include the impacts of human activity (e.g. land use patterns, vegetation changes). There is significant, but not absolute, spatial correlation among these characteristics, making
5313-787: The standards and terminology of protected areas took place at the International Conference for the Protection of Fauna and Flora in London. At the 1962 First World Conference on National Parks in Seattle the effect the Industrial Revolution had had on the world's natural environment was acknowledged, and the need to preserve it for future generations was established. Since then, it has been an international commitment on behalf of both governments and non-government organisations to maintain
5390-653: The term ' other effective area-based conservation measures ' was defined as "a geographically defined area other than a Protected Area, which is governed and managed in ways that achieve positive and sustained long-term outcomes for the in situ conservation of biodiversity, with associated ecosystem functions and services and where applicable, cultural, spiritual, socio-economic, and other locally relevant values." Other effective area-based conservation measures complement protected areas across landscapes, seascapes, and river basins. Protected areas and other effective area-based conservation measures are referenced together in Target 3 of
5467-408: The term is somewhat vague. It has been used in many contexts: forest classifications (Loucks, 1962), biome classifications (Bailey, 1976, 2014), biogeographic classifications ( WWF / Global 200 scheme of Olson & Dinerstein, 1998), etc. The phrase "ecological region" was widely used throughout the 20th century by biologists and zoologists to define specific geographic areas in research. In
5544-454: The terrestrial ecoregions; only the priority conservation areas are listed. See Global 200 Marine ecoregions for a full list of marine ecoregions. In 2007, TNC and WWF refined and expanded this scheme to provide a system of comprehensive near shore (to 200 meters depth) Marine Ecoregions of the World (MEOW). The 232 individual marine ecoregions are grouped into 62 marine provinces , which in turn group into 12 marine realms , which represent
5621-506: The tiger, dhole ( Cuon alpinus ), Binturong , clouded leopard and Tibetan fox ( Vulpes ferrilata ) . Also found to be prevalent were the large herbivore species: Asiatic water buffalo Bubalus arnee , golden langur , musk deer , and Asian elephant . The maintenance of these charismatic megafauna and other threatened species can be attributed to the intensity of Bhutan's management of its protected areas and its local communities' commitment to preserving them. The National Heritage List
5698-913: The trees are predominantly conifers ( gymnosperms ), or whether they are predominantly broadleaf ( Angiosperms ) and mixed (broadleaf and conifer). Biome types like Mediterranean forests, woodlands, and scrub ; tundra ; and mangroves host very distinct ecological communities, and are recognized as distinct biome types as well. Marine ecoregions are: "Areas of relatively homogeneous species composition , clearly distinct from adjacent systems….In ecological terms, these are strongly cohesive units, sufficiently large to encompass ecological or life history processes for most sedentary species." They have been defined by The Nature Conservancy (TNC) and World Wildlife Fund (WWF) to aid in conservation activities for marine ecosystems . Forty-three priority marine ecoregions were delineated as part of WWF's Global 200 efforts. The scheme used to designate and classify marine ecoregions
5775-518: The western slopes of Mount Lebanon’s mountain range and has passed laws to protect environmental sites at the national level, including nature reserves, forests, and Hima (local community-based conservation), with some of these sites having acquired one or more international designations: There are three biosphere reserves in Lebanon that have been designated by the UNESCO : O Parks, Wildlife, and Recreation
5852-486: The world's 8 major biogeographical realms. Subsequent regional papers by the co-authors covering Africa, Indo-Pacific, and Latin America differentiate between ecoregions and bioregions, referring to the latter as "geographic clusters of ecoregions that may span several habitat types, but have strong biogeographic affinities, particularly at taxonomic levels higher than the species level (genus, family)". The specific goal of
5929-520: The world's land surface area (excluding Antarctica). For waters under national jurisdiction beyond inland waters, there are 14,688 Marine Protected Areas (MPAs), covering approximately 10.2% of coastal and marine areas and 4.12% of global ocean areas. In contrast, only 0.25% of the world's oceans beyond national jurisdiction are covered by MPAs. In recent years, the 30 by 30 initiative has targeted to protect 30% of ocean territory and 30% of land territory worldwide by 2030; this has been adopted by
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