Epizootic ulcerative syndrome (EUS), a disease listed by World Organisation for Animal Health (OIE) has been reported in 26 countries across 4 continents. Till date, 94 fish species have been fouund to be naturally infected with EUS and its host range is gradually expanding. In the year 2010-11, outbreaks resulting in heavy fish mortality were recorded in wetland districts of Uttar Pradesh, India and EUS was confirmed as the cause of mortality.

Invasive species cost the Northern Ireland economy £46.5m each year, according to official figures.

Climate change-induced sea-level rise in the world's 52 small island nations - estimated to be up to four times the global average - continues to be the most pressing threat to their environment and socio-economic development with annual losses at the trillions of dollars due to increased vulnerability.

Forests and trees enhance and protect landscapes, ecosystems and production systems. They provide goods and services which are essential to the survival and well-being of all humanity.

Groves of ash trees lost to beetles. Stately alders under assault by moths. And fungus-like organisms attacking oaks.

Oceans and seas are crucial to sustainable development as they contribute to all aspects of our life on this planet. Although they provide numerous economic, social and environmental benefits, oceans and seas are facing a multitude of local and global challenges caused by human activity and climate change.

This paper published in the journal "PLoS Biology" proposes a straightforward system for classifying alien species according to the magnitude of their environmental impacts, based on the mechanisms of impact used to code species in the International Union for Conservation of Nature (IUCN) Global Invasive Species Database.

This practical guide developed by The World Heritage Centre aims to assist those responsible for the management of natural World Heritage sites and provide better understanding how climate change may affect those features of the site that contribute to its Outstanding Universal Value and offer ideas for identifying options for adapting to climat

Phobjikha Valley is one of the largest high-altitude wetlands in Bhutan and an important habitat for various species including the vulnerable Black-necked Crane. The area provides a wide range of ecosystem services to the local people, and is becoming a major tourist attraction.

Influence of exotic plant invasions on the structure and functional attributes of native ecosystems has been extensively documented and debated. The complex interactions of invasive species with native ecosystems make invasion ecology an interesting and important area of research. Prosopis julifora native to south and central America was introdouced in India to meet the fuel-wood requirements of the rural poor and to restore degrated lands. Now, it has become an aggressive weed in several parts of the country and poses a serious threat to native biodiversity.