Woody vegetation, such as trees and shrubs, has increased dramatically in Ozark grasslands over the past 75 years, according to a study published this week in the journal Landscape Ecology. If these ecosystems continue to favor woody vegetation, will it be possible to maintain open grasslands for the foreseeable future?
Why are there so many more species in the tropics? The 'storage effect' is stronger there than in temperate forests.
A much greater number of monarch butterflies perished in a snowstorm in March 2016 in Mexico than previously estimated, according to new research. Analysis of damage from the storm--and the ensuing salvage logging--sheds further light on the precarious state of the famed butterflies' overwintering colonies.
North America's most widespread and valuable ash tree species are on the brink of extinction due to an invasive beetle decimating their populations, while the loss of wilderness areas and poaching are contributing to the declining numbers of five African antelope species, according to the latest update of the IUCN Red List of Threatened SpeciesTM. Today's IUCN Red List update also reveals a dramatic decline of grasshoppers and millipedes endemic to Madagascar, and the extinction of the Christmas Island Pipistrelle bat.
Bristlecone pine and limber pine trees in the Great Basin region of the western United States are like two very gnarled, old men in a slow-motion race up the mountaintop, and climate change is the starting gun, according to a study from the University of California, Davis. The study shows that the tree line has been steadily moving upslope over the past 50 years in the Great Basin.
A spruce forest regeneration experiment in Interior Alaska that spanned nearly 30 years demonstrates which forest management practices produce the best results. It looked at different combinations of ground treatments to reduce competition from other vegetation and of regeneration methods, such as planting spruce seedlings and broadcast seeding. The results show the environmental and management situations in which different techniques work best and the situations in which they are unnecessary. Results support the state's current reforestation practices.
Conservation initiatives led by local and indigenous groups can be just as effective as schemes led by government, according to new research. In some cases in the Amazon rainforest, grassroots initiatives can be even more effective at protecting this vital ecosystem.
Hidden in plain sight -- that's how researchers describe their discovery of a new genus of large forest tree commonly found, yet previously scientifically unknown, in the tropical Andes. Researchers from the Smithsonian and Wake Forest University detailed their findings in a study just released the journal PhytoKeys.
Scat-sniffing research dogs are helping scientists map out a plan to save reclusive jaguars, pumas, bush dogs and other endangered carnivores in the increasingly fragmented forests of northeastern Argentina, according to a new study from Washington University in St. Louis.
A charismatic owl iconic to Pacific Coast forests is no longer ruling the roost, and scientists now have another tool for understanding its decline. Researchers have assembled the California Academy of Sciences' first-ever animal genome after sequencing the DNA of the northern spotted owl (Strix occidentalis caurina). Academy scientists and collaborators extensively mapped the bird's genetic material to better understand how this threatened forest dweller is interacting with non-native owls invading its habitat.