it is believed when invasive species are introduced in an area they inhibit the growth of local plants by producing chemicals. There is another recent theory that suggests that invasives work by

Twenty-six years ago, people displaced by the Supa dam were resettled in Karnataka's Uttara Kannada district. The better irrigation facilities promised to them after they were relocated in the

Mining is generally followed by a revegetation programme carried by the Forest Department. In such programmes, often exotic plant species are also used along with native tree species. Since the last one and half decades an exotic tree species, Prosopis juliflora has gained tremendous popularity among forest officials due to its easy establishment, low mortality rate and fast growth rate on mine spoil, compared to other woody species.

Butterflies in the Andaman archipelago have been facing colonisation. The carrier of the colonists was the 2004 tsunami which brought three foreign species of butterflies to the islands, threatening

Climate is a major driver of forest species distributions and the growth rate and structure of forests. Thus, climate change can potentially have significant effects on mountain forest hydrology, particularly the amount of water available downstream. However, many other factors influence forest biomass and mountain hydrology, and climate change effects cannot be viewed in isolation from previous land use histories (i.e. forest legacies), altered disturbance regimes (e.g. fire frequency, insect outbreaks, floods) and invasive species.

Despite widespread concerns, the New Zealand government has again okayed aerial spraying of poison 1080 (sodium monofluoroacetate). The country uses about 80 per cent of the world's production of

Invasion of alien vegetation is troubling the Swaziland government. In the second week of June, the government doled out Real 10 million (us $1.4 million) in its annual budget to combat proliferation

A giant cane toad (Bufo marinus), the size of a small dog, has been caught in Australia's Northern Territory. The specimen, weighing 861 grammes, twice the normal weight, has startled

The Mexican government has launched an emergency plan to contain the invasion of a moth (Cactoblastis cactorium), which is threatening the country's national symbol

Scientists and policy-makers at a 10-day Antarctic Treaty consultative meeting, held in Edinburgh, have agreed upon new measures to reduce the risk of non-native species being introduced into both

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