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Tag: Species

Loss of tropical forest in developing regions, 1980-1990
The graphic shows the amount and rate of deforestation in Latin America and the Caribbean, Asia and Sub-Saharan Africa from 1980 to 1990. Tropical forests are earth's most complex biome in terms of both structure and spe...
28 Sep 2005 - by Philippe Rekacewicz, 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...
28 Sep 2005 - by 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...
28 Sep 2005 - by UNEP/GRID-Arendal
Harmful algal blooms in the West Central Atlantic, 1970-96
The graphic shows the trend of the number of harmful algal blooms in the Western Atlantic from 1970 to 1996. The excess growth of algae is often caused by pollution, and can have negative or fatal effects on some species...
28 Sep 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Harmful algal blooms in the West Central Atlantic, 1970-96
The graphic shows the trend of the number of harmful algal blooms in the Western Atlantic from 1970 to 1996. The excess growth of algae is often caused by pollution, and can have negative or fatal effects on some species...
28 Sep 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Cumulative impacts on the marine environment
Climate change may, through effects on ocean currents, elevated sea temperatures, coral bleaching, shifts in marine life, ocean acidification and much more severely exacerbate the combined actions of accelerating coastal...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Cumulative impacts on the marine environment
Climate change may, through effects on ocean currents, elevated sea temperatures, coral bleaching, shifts in marine life, ocean acidification and much more severely exacerbate the combined actions of accelerating coastal...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Plankton distribution changes, due to climate changes - North Sea
With melting sea ice and warming of the oceans, marine species change their distributions, affecting entire food chains and ocean productivity. In 2005 the subtropical dinoflagellate Ceratium hexacanthum was found in CPR...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Plankton distribution changes, due to climate changes - North Sea
With melting sea ice and warming of the oceans, marine species change their distributions, affecting entire food chains and ocean productivity. In 2005 the subtropical dinoflagellate Ceratium hexacanthum was found in CPR...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Major pathways and origins of invasive species infestations in the marine environment
All across the planet, the number and severity of outbreaks and infestations of invasive species (i.e. species purposefully or accidentally introduced in non-native environments) is growing, and invasions of marine habit...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Primary threats to the marine environment
Each of the big five stressors (not in order of magnitude), 1) Climate change; 2) Pollution (mainly coastal), 3) Fragmentation and habitat loss (from e.g. dredging/trawling, use of explosives in fishing on coral reefs et...
01 Nov 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Invasive species in the marine environment - problem regions
The locations of major problem areas for invasive species infestations or occurrence of exotic species in the marine environment. The impacted areas are concurrent with the areas subjected to the worst pollution, the mo...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
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 ...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Trends in marine and freshwater populations
The Marine Species Population Index provides an assessment of the average change over time in the populations of 217 species of marine mammals, birds, reptiles, and fish. The index represents the average value of six reg...
17 May 2005 - by Delphine Digout, UNEP/GRID-Arendal
Distribution of coral, mangrove and seagrass diversity
Similar to corals, the region of greatest mangrove diversity is in Southeast Asia, particularly around the Indonesian Archipelago (Burke et al., 2001). There are three distinct areas of seagrass diversity in the Pacific ...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Species diversity in the world's seas
There is growing evidence that many marine species are less widely distributed, and therefore more vulnerable to extinction, than previously thought. This graphic shows the diversity of marine mammals, sharks, molluscs, ...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Species diversity in the world's seas
There is growing evidence that many marine species are less widely distributed, and therefore more vulnerable to extinction, than previously thought. This graphic shows the diversity of marine mammals, sharks, molluscs, ...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Arctic conservation area (CAFF), topographic map, ABA version (2010)
The Conservation of Arctic Flora and Fauna is a working group under the Arctic Council, for the countries of Russia, Denmark, USA, Canada, Sweden, Iceland, Norway and Finland and indigenous peoples. Monitoring, assessmen...
01 May 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
Relative biodiversity scenarios for deserts 2000-2050
The relative species abundance, as a ratio of the biodiversity before the advent of man, is high in desert areas. The areas are relatively pristine and has seen little changes induced by human activities. Impacts are mos...
06 Mar 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Invasive alien plants in South Africa
Species that has been introduced on purpose or spread in the wild threaten livelihoods in agriculture or water resources. As illustrated in this map, some regions of South Africa have very high ratios of invasive alien p...
13 Feb 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
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