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Tag: Ecosystem

Locations reported by various studies as undergoing high rates of land cover change in the past few decades
In the case of forest cover change, the studies refer to the period 1980–2000 and are based on national statistics, remote sensing, and to a limited degree expert opinion. In the case of land cover change resulting from ...
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Locations reported by various studies as undergoing high rates of land cover change in the past few decades
In the case of forest cover change, the studies refer to the period 1980–2000 and are based on national statistics, remote sensing, and to a limited degree expert opinion. In the case of land cover change resulting from ...
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Ecosystem carbon payback time
The ‘carbon debt’ of biofuels is the number of years it can take to offset the carbon emissions generated by converting land for biofuels. It can take decades or centuries for some pathways to bounce back, depending on ...
01 Mar 2012 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Natural ecosystem conversion
It is clear that much land needs to be kept for agricultural use but it is also possible that the area required for food production will stabilize in the future.
03 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
BSR ecosystem area where acidification and eutrophication exceeds critical loads
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). This graphic shows BSR ecosystem area where acidification and...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
BSR ecosystem area where acidification and eutrophication exceeds critical loads
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). This graphic shows BSR ecosystem area where acidification and...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Human impact, Greater Asian Mountains region 2000 and scenarios for 2030
Changes in the Greater Asian Mountains area with reduced biodiversity and ecosystem function as a result of human development in infrastructure and associated resource exploitation between 2000 and 2030, given different ...
26 Jan 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Ecosystems in Northern Scandinavia and Finland
The map shows the range of nine different ecosystem types across Fennoscandia, the northern region of scandinavia and the western part of the Barents region. The Barents region is in the Arctic and covers the area of Wes...
04 Oct 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Ecosystems in Northern Scandinavia and Finland
The map shows the range of nine different ecosystem types across Fennoscandia, the northern region of scandinavia and the western part of the Barents region. The Barents region is in the Arctic and covers the area of Wes...
04 Oct 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Money grows on trees - direct values from community management in Tanzania
In an effort to bring back life to the degraded and over-used lands of the poor Shinyanga region of Tanzania, the government has brought back the traditional practice of Ngitili. Vegetation and trees are nurtured in encl...
20 Sep 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
Biodiversity and protected areas in Macedonia
A map of Macedonia showing all the protected areas, national parks natural reserves. The industry sector is the main polluter in Macedonia. The primary reasons for industrial pollution are the old, inefficient technolog...
14 Sep 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Number of Animal Species per Biome Ecosystem
No data
20 Jun 2009 - by Philippe Rekacewicz assisted by Cecile Marin, Agnes Stienne, Guilio Frigieri, Riccardo Pravettoni, Laura Margueritte and Marion Lecoquierre.
Number of Animal Species per Biome Ecosystem
No data
20 Jun 2009 - by Philippe Rekacewicz assisted by Cecile Marin, Agnes Stienne, Guilio Frigieri, Riccardo Pravettoni, Laura Margueritte and Marion Lecoquierre.
Global Forest Fragmentation
Forest fragmentation can jeopardize the long-term health and vitality of the forest ecosystem. Forest fragmentation can also result in species loss as the size of a forest becomes too small to support a viable popul...
20 Jun 2009 - by Philippe Rekacewicz assisted by Cecile Marin, Agnes Stienne, Guilio Frigieri, Riccardo Pravettoni, Laura Margueritte and Marion Lecoquierre.
Global Forest Fragmentation
Forest fragmentation can jeopardize the long-term health and vitality of the forest ecosystem. Forest fragmentation can also result in species loss as the size of a forest becomes too small to support a viable popul...
20 Jun 2009 - by Philippe Rekacewicz assisted by Cecile Marin, Agnes Stienne, Guilio Frigieri, Riccardo Pravettoni, Laura Margueritte and Marion Lecoquierre.
Comparison of long-term variability of different characteristics of the Black Sea ecosystem
Illustration in a set of graphics prepared for a pilot assessment report on the Black Sea drainage basin, for the UNEP Global Impact on Waters Assessment (GIWA). All data and information were prepared in close collaborat...
07 Nov 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Piscivore-zooplanktivore Index
Shows the Piscivore-zooplanktivore ratio between the years 1950-1995, in the Northeast Atlantic Ocean, and their relationship in the trophic composition of the ecosystem, which shows an ondulating trend, which has decrea...
28 Sep 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Piscivore-zooplanktivore Index
Shows the Piscivore-zooplanktivore ratio between the years 1950-1995, in the Northeast Atlantic Ocean, and their relationship in the trophic composition of the ecosystem, which shows an ondulating trend, which has decrea...
28 Sep 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Benefits from marine and coastal ecosystems and activities
Besides the well-known economic value of fisheries, there are several other activities generating significant revenues in coastal and marine areas. This graphic discusses the economic benefits of coastal tourism, trade a...
17 May 2005 - by Delphine Digout, UNEP/GRID-Arendal
Benefits from marine and coastal ecosystems and activities
Besides the well-known economic value of fisheries, there are several other activities generating significant revenues in coastal and marine areas. This graphic discusses the economic benefits of coastal tourism, trade a...
17 May 2005 - by Delphine Digout, UNEP/GRID-Arendal
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