منابع مشابه
New ivory worries
Species (Cites) in 1989, to halt the steep decline in elephant numbers. “Wild elephant populations were decimated by the ivory trade. By the time the 1989 Cites ban came into force, Africa’s elephants had been reduced by more than 50 per cent,” says Mark Jones, programmes director at Care for the Wild, an international wildlife charity which commissioned the mammoth ivory report. “Poaching cont...
متن کاملPopulation Ecology of Rabbits in the Wairarapa, New Zealand
An aged sample of over 17,000 rabbits (Oryctolagus cuniculus) from the Wairarapa, in the North Island of New Zealand (area 2535 km , 41 o10'S), was autopsied between September 1965 and September 1967. The sample represented about two-thirds of all rabbits shot by the Pest Destruction Board. Information included: date; property; age; sex; body-weight; if male – testes scrotal or not, if female –...
متن کاملWarming worries for cod
(Curr. Biol. 16, R474–R475), and from the shift in the chemical equilibria involving the carbonate ion. Wootton's work also highlights the complex dynamics of pH and carbonate changes over time. A lot more research is needed to understand in detail how these changes will play out and how they will interact with wildlife and with the changes in the atmosphere. For instance, it is not at all clea...
متن کاملWarming worries for species numbers
Unsurprisingly, humans are increasingly concerned about their possible impact on climate change and its wider effects on the environment. But climate is well known to have varied in the past, so what has been the impact of these variations on the species of the time? Most attempts to look at this issue have focused on relatively short geological periods, limited geographical ranges or few taxon...
متن کاملIsland worries
additional risk, he says, comes from the very property that regenerative medicine wants replacement organs to possess, namely invisibility to the immune system. " Tissues derived from iPSC may share with ES cells the potential to display immune privilege which may provide a 'safe haven' in which rare transformed cells may develop into tumours or viral pathogens may flourish under the radar of t...
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ژورنال
عنوان ژورنال: The Journal of New Zealand Studies
سال: 1996
ISSN: 2324-3740,1173-6348
DOI: 10.26686/jnzs.v6i1.446