species
Paris (AFP) - Invasive species that destroy forests, ravage crops and cause extinctions are a major and growing threat worldwide, a landmark UN-backed assessment is poised to report. From water hyacinth choking Lake Victoria in East Africa, to rats and brown snakes wiping out bird species in the Pacific, to mosquitoes exposing new regions to Zika, yellow fever, dengue and other diseases, tens of thousands of alien species have taken root -- often literally -- far from their place of origin. The science advisory panel for the UN Convention on Biodiversity, known by its acronym IPBES, will relea...
AFP
Paris (AFP) - For species classified as "extinct in the wild", the zoos and botanical gardens where their fates hang by a thread are as often anterooms to oblivion as gateways to recovery, new research has shown. Re-wilding what are often single-digit populations faces the same challenges that pushed these species to the cusp of extinction in the first place, including a lack of genetic diversity. But without conservation efforts, experts say, chances of these species surviving would be even smaller. Since 1950, nearly 100 animal and plant species vanquished from nature by hunting, pollution...
AFP
Paris (AFP) - Sixty percent of cactus species will wind up in less hospitable climates over the coming decades as global warming sets in, according to new research challenging the long-held assumption the iconic desert plants will thrive with more heat. By 2070, up to 90 percent could be threatened with extinction due to climate change, habitat loss and other stressors, triple the current percentage, scientists reported in Nature Plants. Some 1,500 species of cacti spread across the Americas live in varying climes, ranging from sea-level deserts to the high Andes mountains, from bone-dry ecosy...
AFP
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