Now its not just Honey Bees, Bats Frogs and other amphibians dying, and crashing worldwide you can add snakes to the list. World Snake Population
Mysteriously Declining. Studies Show Many Species of Snake Are Dramatically
Shrinking in Numbers
According to the BBC News many of the species of snake in the world are in decreasing in number and have been doing so since about 1998.
The findings are based on the research of 17 different snake populations around the world, and for some reason the numbers of most of these shrank
dramatically around 1998, which researchers say is alarming. Many of
these populations are also not showing any signs of recovery, which leaves them vunerable to any new condition that causes a further decrease in
numbers.
Of these 17 populations being studied, only one increased in number, but some shrank to dangerous levels.
There are no obvious reasons why this has happened, but with studies being undertaken in Australia, France, Italy and Nigeria, it is obvious that this
is happening on a global scale, and it is more than just a coincidence.
The only clues so far as to why this should have begun in 1998 is that it was the warmest year on record in recent years, due to strong El Nino
conditions.
Scientists so far do not know what other factors might be causing the population change, but some species suffered a loss even though they were living
in protected areas, so this cannot be attributed to loss of habitat.
One of the biggest problems faced with this study is the lack of data. Many studies require the tagging of snakes with micro-chips so that they can be
tracked, but this type of study often takes years to complete.
Scientists are concerned that because some of these species of snakes are the main predators in ecosystems such as rice fields. As a result, the
population decreases could have serious worldwide impacts, especially if this were to result in increased damage to rice crops.
Foraging snakes seem to be the most vunerable, in particular those species that lie in wait for their prey to come within range. Any changes to the
patterns of their prey have a direct impact on their survival.
According to The Guardian in the UK, these are the results for those species that have been part of the studies:
Declines
Smooth snake (Coronella austriaca) in the UK
Asp viper (Vipera aspis) in France and Italy
Orsini's viper (Vipera ursinii) in Italy
Gaboon viper (Bitis gabonica) in Nigeria
Rhinoceros viper (Bitis nasicornis) in Nigeria
Royal or ball python (Python regius) in Nigeria
Western whip snake (Hierophis viridiflavus) in France
Aesculapian snake (Zamenis longissimus) in France
Stable
Grass snake (Natrix natrix) in the UK and France
Aesculapian snake (Zamenis longissimus) in France
Jameson's mamba (Dendroaspis jamesoni) in Nigeria
Eastern tiger snake (Notechis scutatus) in Australia
Slight increase
Western whip snake (Hierophis viridiflavus) in France
Sources:
BBC News
ABC News Australia
The Guardian
www.associatedcontent.com... just Honey Bees, Bats Frogs other amphibians
dying, but that species are crashing worldwide
[edit on 21-6-2010 by ddarkangle2bad]