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Tag: Species

Non-indigenous species over the 20th Century
Both the number and rate of non-indigenous introductions to the Mediterranean have been increasing in recent years (UNEP/ MAP 2009). Currently, about a thousand non-indigenous aquatic species have been identified in t...
19 Nov 2013 - by GRID-Arendal
Threatened species in Zimbabwe
Through the intensified conservation programmes, including the Communal Areas Management Programme for Indigenous Resources (CAMPFIRE), the number of threatened species was reduced from 38 in 2000 to 32 in 2004. CAMPFIRE...
14 Oct 2013 - by GRID-Arendal
Threatened species in Tanzania
Tanzania is a large country with vast biological diversity and high numbers of threatened species,well documented. According to IUCN (2008), Tanzania has 10 008 known species of higher plants including endemic and non-en...
14 Oct 2013 - by GRID-Arendal
Change in the number of threatened species in Namibia
Threats to biodiversity include over-grazing, agriculture and mining (WWF 2006). Figure 4.34 shows that there are 58 threatened species in Namibia, an increase of 60 per cent in less than a decade, although some increase...
15 Oct 2013 - by GRID-Arendal
Threatened Species in Mozambique
Mozambique is also rich in birdlife, mammals, reptiles and amphibians, but the number of threatened species recorded jumped from 41 in 1996 to 108 in 2003 as shown in this figure, in part due to greater access to areas ...
15 Oct 2013 - by GRID-Arendal
Change in the number of threatened species in Angola
This figure shows the change in numbers of threatened species, indicating that this spiked at 71 in 2003 following the end of the war when some areas became more accessible and counts resumed. The 2008 figure shows a red...
14 Oct 2013 - by GRID-Arendal
Change in biodiversity for selected species in Angola
This figure shows the percentage changes in biodiversity of some species, illustrating the reduction in diversity of mammals and molluscs, while others are steady or increasing (eg, birds).
14 Oct 2013 - by GRID-Arendal
Threatened Species in the Zambezi River Basin countries
Despite the abundance of wildlife resources in the basin, there are pressures that threaten the existence of this resource. Species that have become extinct in the basin in recent times include the blue wildebeest in Mal...
14 Oct 2013 - by GRID-Arendal
Re-infestation by 'Aedes aegypti'
Climate change affect the health of the population, not only through heat waves and waterborne diseases, but also as a result of the expansion of geographical areas conducive to the transmission of vector-borne diseases ...
08 Mar 2010 - by Nieves López Izquierdo, Associate Consultant UNEP/GRID-Arendal
Total sturgeon catch in the Caspian
The Caspian area is the world’s main producer of wild caviar (83% in 2003) and supplies the four largest markets, the European Union, United States, Switzerland and Japan. The construction of several hydroelectric po...
07 Mar 2012 - by Original cartography by Philippe Rekacewicz (le Monde Diplomatique) assisted by Laura Margueritte and Cecile Marin, later updated by Riccardo Pravettoni (GRID-Arendal), Novikov, Viktor (Zoi Environment Network)
Historical decline of the Caspian seal (Pusa caspica)
The Caspian seal (Pusa caspica) population has declined by more than 90 per cent since the start of the 20th century, falling from more than 1 million individuals in 1900 to around 100 000 today (CEP, 2007). However,...
07 Mar 2012 - by Original cartography by Philippe Rekacewicz (le Monde Diplomatique) assisted by Laura Margueritte and Cecile Marin, later updated by Riccardo Pravettoni (GRID-Arendal), Novikov, Viktor (Zoi Environment Network)
Collapse of Tulka in the Caspian
The comb jelly is well adapted to the habitat (salinity, temperature, and food range) and reproduces faster than endemic species. As it eats the same food as them, it has had a drastic effect on their numbers, upsetti...
07 Mar 2012 - by GRID-Arendal
Comb jelly (Mnemiopsis leidyi) is spreading in the European seas
North American comb jelly (Mnemiopsis leidyi) was brought accidentally to the Caspian in the ballast water of oil tankers. A voracious feeder on zooplankton and fish larvae, it first arrived in the Black Sea in the early...
01 Oct 2012 - by Philippe Rekacewicz (le Monde Diplomatique)
Origin and destination of selected species
North American comb jelly (Mnemiopsis leidyi) was brought accidentally to the Caspian in the ballast water of oil tankers. A voracious feeder on zooplankton and fish larvae, it first arrived in the Black Sea in the e...
07 Mar 2012 - by Original cartography by Philippe Rekacewicz (le Monde Diplomatique) assisted by Laura Margueritte and Cecile Marin, later updated by Riccardo Pravettoni (GRID-Arendal), Novikov, Viktor (Zoi Environment Network)
Ringed seal pupping lair, with the pup in the lair and the female approaching the haul-out hole from the water
Ringed seals are the 'classic' Arctic seal in many regards, being found as far north as the Pole because of their ability to keep breathing holes open in ice that can reach 2 metres in depth. This species is certainly on...
01 Nov 2007 - by Robert Barnes, UNEP/GRID-Arendal
Barents Sea ecoregion conservation priority areas
The Barents Sea ecoregion - the part of the World Ocean north of the Nordic countries and Northwest Russia, has a unique environment with major sea bird colonies, rich benthic and plankton fauna and many major sea mammal...
06 Dec 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Barents Sea ecoregion conservation priority areas
The Barents Sea ecoregion - the part of the World Ocean north of the Nordic countries and Northwest Russia, has a unique environment with major sea bird colonies, rich benthic and plankton fauna and many major sea mammal...
06 Dec 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Forest composition case study in North America
Current and projected Ranges of Beech Trees in the US. A warmer climate may have significant effect on the forests. Decidous forests will probably move northwards and to higher altitudes, replacing coniferous forests in...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Forest composition case study in North America
Current and projected Ranges of Beech Trees in the US. A warmer climate may have significant effect on the forests. Decidous forests will probably move northwards and to higher altitudes, replacing coniferous forests in...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Ratio of protected areas in the Balkans
The Balkans boast an exceptional wealth of biodiversity of flora and fauna. The main threat to species is increasing anthropogenic pressures such as hunting, farming and the collection of medicinal plants. Natural habita...
30 Nov 2007 - by Philippe Rekacewicz, Stephane Kluser, Matthias Beilstein, Ieva Rucevska, Cecile Marin, Otto Simonett
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