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Environment ecology

United Nations Congress of biodiversity in Bonn, Germany

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Written by Dr. H. P. Bustami
Monday, 26 May 2008
Waterbucks in Botswana. Courtesy Forschungsnachrichten.de Several million species inhabitat our planet. Many of them still undiscovered. Many of them might extinct before being discovered. Never in Earth history the extinction of animals and plants occured so alarmingly quick than nowadays. The reason is the most aggressive and expansionistic among all species: Homo sapiens, the modern human. Scientists, experts and politicians from all over the world come together in a congress conducted by the United Nations in Bonn, Germany from 19th May-30th may 2008. Collaterally an exposition under the title "Million ways (species) to live - Research for biodiversity is shown by the Helmholtz-Scientific society. Tag it: ? Be first to comment this article \| Add as favourites (9) \| Quote this article on your site \| Views: 99 \| E-mail
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Climate change accelerates

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Written by Dr. H. P. Bustami
Sunday, 03 February 2008
Climate could change dramatically in the near future (courtesy. photocase.com) Climate change is happening, now and during the last century. Scientists from the university of Bern, Switzerland, now published new data about the speed of anthropogenic climate change. They compared CO₂, N₂0 and CH₄ (the most important gases responsible for greenhouse effect) over a period of the last 20.000 years. They used antarctic ice cores containing air locks of the monitored period. The investigation showed that the slopes of the global warming gases never before were so alarming high in the last 16.000 years as during the 20th century. Tag it: ? Be first to comment this article \| Add as favourites (22) \| Quote this article on your site \| Views: 182 \| E-mail
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Climate change has severe consequences for egg-laying and migration in birds

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Written by Thomas Hesselberg
Monday, 14 January 2008
Climate change affects the timing of migration and egg-laying in birds. Photo courtesy of photocase.com. Last year most people, including politicians, finally realised that climate change in the form of global warming is affecting our planet. However, it does not only affect us humans in the form of increased dramatic weather and lower crop yields due to draught or flooding. Climate change is likewise affecting plants and animals. Birds for instance use temperature as a cue for many life cycle decisions. Now an international research group headed by the Swedish ornithologist Anders Hedenstr�m from the University of Lund has used computer model to show the effects of climate change on egg-laying and timing of migration in birds. Tag it: ? Be first to comment this article \| Add as favourites (24) \| Quote this article on your site \| Views: 869 \| E-mail
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Poisonous spiders gaining ground in Europe

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Written by Dr. H. P. Bustami
Sunday, 18 November 2007
Scytodes thoracica (5 mm) a tropical specie now living in houses all over Europe. (P: J�rgen Lissner) Since ancient times mans trade activity gave rise for migrating species from continent to continent. Nowadays combined with climate change new spider species are arriving in Europe. Every other year taxonomists find a new spider from other continents. Main source for that distribution is the global trade. The invasive spiders in average exceed european spiders in size and live within in buildings. Thus with more and more poisonous spiders the danger for humans rises with each year. In the last 150 years some 87 new spider species have been discribed due to a study of the Zoological Institute, University of Bern, Switzerland. These results of Wolfgang Nentwig and Manuel Kobelt recently were published in "Diversity and Distribution". Tag it: ? Be first to comment this article \| Add as favourites (20) \| Quote this article on your site \| Views: 650 \| E-mail
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Can rain reduce the risk of malaria?

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Written by Thomas Hesselberg
Tuesday, 13 November 2007
Rain might reduce the risk of malaria, since the mosquito larvae suffers higher mortality during rainfall. Photo courtesy of photocase.com. Intuitively, we certainly would not expect rainfall to have any positive influence on the number of malaria cases, on the contrary. Malaria, one of the world’s most damaging diseases with more than 300 million cases per year and more than a million deaths, is transmitted by mosquitoes in the genus Anopheles. Since the mosquito larvae live in small ponds, it would be expected that the more rain the more water-filled ponds and crevices, the more mosquitoes and malaria. However, findings reported by the scientists from the Unversity of Wageningen in the Netherlands and Kenya Medical Research Institute suggest that increased rainfall will have a negative effect on mosquito larval populations and thus potentially on Malaria. Tag it: ? Be first to comment this article \| Add as favourites (17) \| Quote this article on your site \| Views: 279 \| E-mail
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