<p>According to this new report by the IPBES, more than 3,500 out of the 37,000 alien species that have been introduced by many human activities to regions and biomes around the world pose major global threats to nature, economy, food security and human health.</p>
The Terai-Duar Savanna Ecoregion is spread over the southern slopes of the Himalayas in India, Nepal, Bhutan and Bangladesh. The Terai Arc Landscape (TAL) lies within this ecoregion covering an area of approximately 49,500 sq km in India and Nepal stretching from the Bagmati River in the East to the Yamuna River in the west.
<p>The ability of many introduced fish species to thrive in degraded aquatic habitats and their potential to impact on aquatic ecosystem structure and function suggest that introduced fish may represent
Think of an invasion, and the picture that comes to mind is usually that of planes and tanks, machines and men, shells and gunshots. But animal and plant species also run amok, especially when they enter an ecosystem where they didn t previously exist. Af
<p>Under the Joint Forest Management (JFM) programme in south-western West Bengal, regenerating deciduous forests are being managed for the extraction of numerous plant products, both for commercial benefits and subsistence-level use, on a large scale.
The primary goal of the National Wetlands Policy is to conserve and manage wetlands resources wisely and in a sustainable way with local people
There are few controlled data with which to assess the conservation role of corridors connecting refuges. If corridors were used sufficiently, they could alleviate threats from inbreeding depression and demographic stochasticity. For species that require more resources than are available in single refuges, a network of refuges connected by corridors may allow persistence.
A weed which was carried into India from the United States has spread within a decade across a thousand miles of the country from Bangalore in the south to Kashmir in the north. This prolific plant, Parthenium
The issues of biofuels and invasive species have rarely been tackled together. These guidelines aim to fill this gap by highlighting the risks of biological invasion by species introduced for biofuels production and to provide constructive recommendations on how to prevent the introduction, establishment and spread of invasive species resulting from biofuel developments.
Nitrogen (N) is essential to the survival of all life forms and often limits productivity, decomposition and the long-term accumulation of carbon in terrestrial ecosystems. Soil and vegetation are the respective primary and secondary sinks for N in terrestrial ecosystems. Litter production determines the amount and quality of N returned to the forest floor and mineral soil. Decomposition of litter is crucial for N recycling and is influenced by a number of factors, including litter concentrations of N and lignin.
There is widespread interest in biofuel crops as a solution to the world's energy needs, particularly in light of concerns over greenhouse-gas emissions.
