Key Biodiversity Areas (KBA) are geographical regions that have been determined to be of international importance in terms of biodiversity conservation, using globally standardized criteria published by the IUCN as part of a collaboration between scientists, conservation groups, and government bodies across the world. [1] The purpose of Key Biodiversity Areas is to identify regions that are in need of protection by governments or other agencies. [1] KBAs extend the Important Bird Area (IBA) concept to other taxonomic groups and are now being identified in many parts of the world. Examples of types of KBAs include Important Plant Areas (IPAs), Ecologically and Biologically Significant Areas (EBSAs) in the High Seas, Alliance for Zero Extinction (AZE) sites, Prime Butterfly Areas, Important Mammal Areas and Important Sites for Freshwater Biodiversity, with prototype criteria developed for freshwater molluscs and fish and for marine systems. The determination of KBAs often brings sites onto the conservation agenda that hadn't previously been identified as needing protection due to the nature of the two non-exclusive criteria used to determine them; vulnerability; and irreplaceability. [2]
The KBA global standard [3] was published in 2016.
The criteria for what can qualify as a KBA is one or more of the following:
The KBA standard has been applied around the globe to over 16,000 areas with a total 21,000,000 km2, [6] which can be viewed in map form. [7] It is used by scientists to assess fragmentation and habitat loss in vulnerable areas, [8] [9] [10] [11] and is generally seen as an effective method of identifying areas in need of protection. [12]
Some criticism involves the scale of KBAs, such as the use of global data to set parameters for single regions or ecosystems, as well as the lack of involvement of local governments and other authorities- especially in developing countries- in their implementation. [13] Other issues raised include the defining of conservation strictly in terms of location, and the naming of single species as important to the environment rather than the interconnectivity between species [13] and doesn't prioritize areas that are dense in biological diversity. [14] Some argue, however, that KBAs are meant to be a "focused response to a central problem in conservation" [15] rather than a catch-all solution. Criteria may also be too broad, as one analysis found that between 26% and 68% of all terrestrial land on Earth could be classified as a KBA. [14]
Biodiversity is the variety and variability of life on Earth. It can be measured on various levels. There is for example genetic variability, species diversity, ecosystem diversity and phylogenetic diversity. Diversity is not distributed evenly on Earth. It is greater in the tropics as a result of the warm climate and high primary productivity in the region near the equator. Tropical forest ecosystems cover less than one-fifth of Earth's terrestrial area and contain about 50% of the world's species. There are latitudinal gradients in species diversity for both marine and terrestrial taxa.
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 is limited.
Conservation status is a measure used in conservation biology to assess an ecoregion's degree of habitat alteration and habitat conservation. It is used to set priorities for conservation.
The great knot is a small wader. It is the largest species of the genus Calidris. They are a migratory bird which breeds in Siberia, Russia, and flies to southern Asia and Australia in the northern winter.
In conservation biology, a flagship species is a species chosen to raise support for biodiversity conservation in a given place or social context. Definitions have varied, but they have tended to focus on the strategic goals and the socio-economic nature of the concept, to support the marketing of a conservation effort. The species need to be popular, to work as symbols or icons, and to stimulate people to provide money or support.
Minimum viable population (MVP) is a lower bound on the population of a species, such that it can survive in the wild. This term is commonly used in the fields of biology, ecology, and conservation biology. MVP refers to the smallest possible size at which a biological population can exist without facing extinction from natural disasters or demographic, environmental, or genetic stochasticity. The term "population" is defined as a group of interbreeding individuals in similar geographic area that undergo negligible gene flow with other groups of the species. Typically, MVP is used to refer to a wild population, but can also be used for ex situ conservation.
In biology, a refugium is a location which supports an isolated or relict population of a once more widespread species. This isolation (allopatry) can be due to climatic changes, geography, or human activities such as deforestation and overhunting.
One of the first shark species to be protected was the grey nurse shark. The biology, distribution and conservation of this species are dealt with in the following paragraphs with a main focus on Australia as it was here it first became protected.
The sandhill dunnart is a species of carnivorous Australian marsupial of the family Dasyuridae. It is known from four scattered semi-arid areas of Australia: near Lake Amadeus in Northern Territory, the central and eastern Eyre Peninsula in South Australia, the southwestern and western edges of the Great Victoria Desert in Western Australia, and at Yellabinna in South Australia.
Reserve design is the process of planning and creating a nature reserve in a way that effectively accomplishes the goal of the reserve.
The red-spectacled amazon is a species of parrot in the family Psittacidae. It is found in Argentina, Brazil, and Paraguay.
The Flinders Ranges worm-lizard is a species of lizard in the Pygopodidae family endemic to the state of South Australia. The name derives from the Flinders Ranges.
Global biodiversity is the measure of biodiversity on planet Earth and is defined as the total variability of life forms. More than 99 percent of all species that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 2 million to 1 trillion, but most estimates are around 11 million species or fewer. About 1.74 million species were databased as of 2018, and over 80 percent have not yet been described. The total amount of DNA base pairs on Earth, as a possible approximation of global biodiversity, is estimated at 5.0 x 1037, and weighs 50 billion tonnes. In comparison, the total mass of the biosphere has been estimated to be as much as 4 TtC (trillion tons of carbon).
Biodiversity in agriculture is the measure of biodiversity found on agricultural land. Biodiversity is the total diversity of species present in an area at all levels of biological organization. It is characterized by heterogeneous habitats that support the diverse ecological structure. In agricultural areas, biodiversity decreases as varying landscapes are lost and native plants are replaced with cultivated crops. Increasing biodiversity in agriculture can increase the sustainability of farms through the restoration of ecosystem services that aid in regulating agricultural lands. Biodiversity in agriculture can be increased through the process of agroecological restoration, as farm biodiversity is an aspect of agroecology.
The World Database on Protected Areas (WDPA) is the largest assembly of data on the world's terrestrial and marine protected areas, containing more than 260,000 protected areas as of August 2020, with records covering 245 countries and territories throughout the world. The WDPA is a joint venture between the United Nations Environment Programme World Conservation Monitoring Centre and the International Union for Conservation of Nature World Commission on Protected Areas.
Biodiversity loss happens when plant or animal species disappear completely from Earth (extinction) or when there is a decrease or disappearance of species in a specific area. Biodiversity loss means that there is a reduction in biological diversity in a given area. The decrease can be temporary or permanent. It is temporary if the damage that led to the loss is reversible in time, for example through ecological restoration. If this is not possible, then the decrease is permanent. The cause of most of the biodiversity loss is, generally speaking, human activities that push the planetary boundaries too far. These activities include habitat destruction and land use intensification. Further problem areas are air and water pollution, over-exploitation, invasive species and climate change.
Essential Biodiversity Variables (EBVs) is a putative set of parameters intended to be the minimum set of broadly agreed upon necessary and sufficient biodiversity variables for at least national to global monitoring, researching, and forecasting of biodiversity. They are being developed by an interdisciplinary group of governmental and academic research partners. The initiative aims for a harmonised global biodiversity monitoring system. EBVs would be used to inform biodiversity change indicators, such as the CBD Biodiversity Indicators for the Aichi Targets.
Important Marine Mammal Areas (IMMAs) were formulated by the joint International Union for Conservation of Nature (IUCN) Species Survival Commission / World Commission on Protected Areas, Marine Mammal Protected Areas Task Force (MMPATF)
Keo Seima Wildlife Sanctuary is a 2,926.9 km2 (1,130.1 sq mi) protected area of mixed seasonal tropical forest in eastern Cambodia, located in Mondulkiri and Kratié provinces. The area was first established as Seima Biodiversity Conservation Area in 2002, later becoming Seima Protection Forest in 2009, finally becoming Keo Seima Wildlife Sanctuary in 2016. The site is of national, regional, and global importance for a range of biodiversity, with more than 950 species recorded within the protected area. It is also the ancestral and contemporary home of a large number of the Bunong ethnic group.
The anthropause was a global reduction in modern human activity, especially travel, that occurred during the COVID-19 pandemic, particularly in March and April 2020. It was coined by a team of researchers in June 2020 in an article discussing the positive impact of the COVID-19 lockdown on wildlife and environment. The scientific journal that published the commentary, Nature Ecology and Evolution, selected the topic for the cover of its September issue, with the headline "Welcome to the anthropause". Oxford Languages highlighted the word "anthropause" in its 2020 Words of an Unprecedented Year report.