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Tag: Species

Arctic biodiversity - pressures and impacts
The Arctic plays host to a vast array of biodiversity, including many globally significant populations. Included among these are more than half of the world´s shorebird species, 80% of the global goose populations, sever...
01 May 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
Index of biodiversity potential in Central America
Biodiversity is vitally important to human well-being as it provides ecosystem services on which humans depend. For many species that are sensitive to even small variations in climate, their primary threat is climate cha...
22 Nov 2010 - by Nieves López Izquierdo, Associate Consultant UNEP/GRID-Arendal
Coastal Arctic food web (drift ice)
The coastal Arctic food web is closely related to drift ice conditions and seasonal use of shorelines by both terrestrial and sea mammals. Numerous species depend upon each other and the transport of food to and from the...
17 May 2005 - by UNEP/GRID-Arendal
African wildlife under threat from climate change
Climate change poses a threat to wildlife because as climatic conditions change, many species may be unable to tolerate the changes. This graphic shows the numbers of mammals, birds, reptiles, amphibians and fish species...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Distribution and spawning areas of four fish species
Distribution and spawning areas of arctic cod, polar cod, herring and capelin in the Barents Sea region. The Barents region is in the Arctic and covers the area of Western Russia and the northern areas of Finland, Sweden...
04 Oct 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Distribution of lodgepole pine in Sweden
Forest distribution in Scandinavia is affected by several different species. This is to demonstrate the concentration of lodgepole pine (pinus contorta) in Sweden. The lodgepole pine is a tall, slender tree with a narrow...
04 Oct 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
The Living Planet Index measures trends in the abundance of species for which data is available
This indicator has been adopted by the Convention on Biological Diversity to measure progress towards the 2010 target
28 Mar 2006 - by Bounford.com and UNEP/GRID-Arendal
Routes for exports of illegally logged ramin timber in Indonesia
Ramin, Gonystylus sp., is a group of tropical hardwood species in South East Asia, listed as vulnerable on the IUCN red list, and the trade of the timber is regulated under CITES. Illegal logging of these species is comm...
22 Jan 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Fishing yield
Three-quarters of the world’s fish stocks are currently exploited to the maximum extent, if not in excess (FAO, 2000). This exploitation has had the following impacts: - A growing variety of fishery products are being e...
26 Jan 2009 - by Phillippe Rekacewicz, February 2006
Tigris and Euphrates rivers fragmentation
It has been predicted that access to water will create conflict between countries. In Africa, central Asia, west Asia and the Americas, some countries are already arguing fiercely over access to rivers and inland seas, a...
26 Jan 2009 - by Philippe Rekacewicz
Fish diversity in freshwater systems
Although freshwater ecosystems such as rivers, lakes and wetlands occupy less than 2% of the earth’s total land surface, they provide a wide range of habitats for a significant proportion of the world’s plant and animal ...
26 Jan 2009 - by Philippe Rekacewicz
Planet index 2007 for marine species population
The Marine Species Population Index provides an assessment of the average changeover time in the populations of 217 species of marine mammals, birds, reptiles, and fish. The index represents the average value of six regi...
26 Jan 2009 - by GRID-Arendal
Coral reefs at risks
There are two distinct regions in which coral reefs are primarily distributed: the Wider Caribbean (Atlantic Ocean) and the Indo-Pacific (from East Africa and the Red Sea to the Central Pacific Ocean). - The diversity o...
26 Jan 2009 - by Phillippe Rekacewicz, February 2006
Biological oxygen demand - BOD: 1976-2008
The availability of oxygen is one of the most important indicators of the condition of a water body, because dissolved oxygen, or DO, (the amount of oxygen dissolved in water) is necessary for most aquatic organisms, inc...
26 Jan 2009 - by Phillippe Rekacewicz, February 2006
The WWF living planet index for freshwater
'The over-exploitation and mismanagement of fisheries, particularly when combined with other man-made stresses, can lead to the collapse of regional fish faunas. In many countries, aquaculture is rapidly increasing in re...
26 Jan 2009 - by GRID-Arendal
Damming the world
The construction of large dams - defined as those with walls at least 15 metres high - has increased significantly over the past 50 years. The average height of new dams, estimated at 30-34 m from 1940-1990, increased to...
26 Jan 2009 - by Phillippe Rekacewicz, February 2006
Marine species diversity
Limited information is available on species diversity and the condition of coastal and marine ecosystems (Burke et al., 2001). There is growing evidence that many marine species are less widely distributed, and therefore...
26 Jan 2009 - by World Resource Institute (WRI), Washington Dc, 1998, based on data from UNEP-WCMC.
Sea Ice Anomaly in Northern Hemisphere
Arctic sea-ice reductions have significant impacts on climate, wildlife and communities. The opening of open water across the Arctic ocean will have unknown consequences in terms of changes in water circulation and redis...
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Species Turnover
Change in the initial species richness in 2005 relative to 2001-2005 average (high-range climate change scenario). Studies predict species invasion will be profound in the Arctic and Southern Oceans. Among others these c...
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Working for Water employment
The Working for Water programme was launched in 1995 and is administered through the Department of Water Affairs and Forestry. The programme works in partnership with local communities which it provides with jobs, and al...
01 Nov 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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