Tropical trees in the Amazon Rainforest may be more drought resistant than previously thought, according to a new study by researchers at the University of California, Riverside. That's good news, since the Amazon stores about 20 percent of all carbon in the Earth's biomass, which helps reduce global warming by lowering the planet's greenhouse gas levels. The study was published Monday in the journal New Phytologist.
The linkages between environmental health and human well-being are complex, and recent scholarship has developed a number of models for describing them. Unfortunately, these efforts have been constrained by varying practices and a lack of agreement among practitioners on consistent practices. Jiangxiao Qiu, an Assistant Professor in Landscape Ecology at the University of Florida, and his colleagues propose an alternative approach to understanding the interplay of social and ecological spheres: causal chains.
Anolis lizards have a thing or two to teach humans about love -- or in scientific speak, sexual selection -- at least when it comes to territoriality. Decades of behavioral research on the lizard's mating systems have resulted in near-unanimous agreement among scientists that the males maintain restricted, static territories to defend exclusive mating access to females within these territories and are consequently polygamous.
New research shows that males and females of the same species can evolve to be so different that they prevent other species from evolving or colonising habitats, challenging long-held theories on the way natural selection drives the evolution of biodiversity.
A new analysis of the natural temperature archives stored in coral reefs shows the ocean around the Galápagos Islands has been warming since the 1970s. The finding surprised the research team, because the sparse instrumental records for sea surface temperature for that part of the eastern tropical Pacific Ocean did not show warming. Scientists thought strong upwelling of colder deep waters spared the region from the warming seen in other parts of the Pacific.
New University of Colorado Boulder-led research has established a causal link between climate warming and the localized extinction of a common Rocky Mountain flowering plant, a result that could serve as a herald of future population declines.
Researchers from Princeton University and the Chinese Academy of Sciences suggest that plants spread worldwide thanks to root adaptations that allowed them to become more efficient and independent. As plant species spread, roots became thinner so they could more efficiently explore poor soils for nutrients, and they shed their reliance on symbiotic fungi. The researchers report that root diameter and reliance on fungi most consistently characterize the plant communities across entire biomes such as deserts, savannas and temperate forests.
Pacific coast marshes, particularly those in California and Oregon, are highly vulnerable to climate change, according to a new modeling analysis. Under higher-range sea level rise scenarios estimated to impact this region by the end of the century, all high- and mid-marsh habitats are projected to be lost. Only the low marsh habitat is likely to survive under such
Research led by the University of Plymouth has revealed that designing systematic and innovative education tools to teachers and students can make a significant and positive contribution to their understanding of the problem of marine litter -- and their willingness to do something about it.
Through their grazing activity, sea urchins excavate rock and form the pits they occupy. This activity may cause significant bioerosion of temperate reefs, according to a study published Feb. 21, 2018 in the open-access journal PLOS ONE by Michael Russell from Villanova University, US, and colleagues.